Acumen Pharmaceuticals, Inc. (ABOS)

Data as of Jun 17, 2026, from SEC Form 4 filings.

No open-market insider trades (90d)Watch ABOS

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Latest ABOS insider trades

Derrell Porter - Director
Open-market sale$15K
Jun 15, 2026
Derrell Porter - Director
Open-market sale$30K
Jun 17, 2026

About Acumen Pharmaceuticals, Inc. (ABOS)

Acumen Pharmaceuticals, Inc. is an SEC registrant, filing under CIK 0001576885, classified as biological products (no diagnostic substances). We track it alongside the rest of the Health Care sector.

Sector: Health Care

SEC filings for ABOS on EDGAR

ABOS Form 4 activity by transaction type, last 90 days

No Form 4 activity for ABOS in the last 90 days.

ABOS insider transactions (Form 4)

27 Form 4 filings on record, the earliest from Nov 6, 2024, newest first.

Date	Insider	Transaction	Security	Shares	Price	Value
Jun 15, 2026	Derrell Porter - Director	Option exercise	Common Stock	6,460	$1.07	$7K
Jun 15, 2026	Derrell Porter - Director	Open-market sale	Common Stock	6,460	$2.35	$15K
Jun 17, 2026	Derrell Porter - Director	Option exercise	Common Stock	13,040	$1.07	$14K
Jun 17, 2026	Derrell Porter - Director	Open-market sale	Common Stock	13,040	$2.33	$30K
Jun 16, 2026	Derrell Porter - Director	Open-market sale	Common Stock	12,800	$2.33^{footnote F1}	$30K
Jun 15, 2026	Derrell Porter - Director	Option exercise	Stock Option (right to buy)	6,460	$0.00	-
Jun 17, 2026	Derrell Porter - Director	Option exercise	Stock Option (right to buy)	13,040	$0.00	-
Footnote F1 (price): The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $2.305 to $2.345. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security holder… Full note on SEC EDGAR
Jun 9, 2026	Nathan B. Fountain - Director	Open-market sale	Common Stock	6,400	$2.23^{footnote F1}	$14K
Footnote F1 (price): The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $2.2300 to $2.2311. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security… Full note on SEC EDGAR
Jun 3, 2026	RA CAPITAL MANAGEMENT, L.P.	Grant or award	Common Stock	35,500^{footnote F1}	$0.00	-
Jun 3, 2026	RA CAPITAL MANAGEMENT, L.P.	Grant or award	Stock Option (Right to Buy)	53,250	$0.00	-
Footnote F1 (shares): Represents a restricted stock unit ("RSU") award to Laura Stoppel. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in full on the earlier of the first anniversary of the date of grant or the 2027 annual stockholder… Full note on SEC EDGAR
Jun 3, 2026	Nathan B. Fountain - Director	Grant or award	Common Stock	35,500^{footnote F1}	$0.00	-
Jun 3, 2026	Nathan B. Fountain - Director	Grant or award	Stock Option (right to buy)	53,250	$0.00	-
Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in full on the earlier of the first anniversary of the date of grant or the 2027 annual stockholder meeting, subject to… Full note on SEC EDGAR
Jun 3, 2026	Kimberlee C. Drapkin - Director	Grant or award	Common Stock	35,500^{footnote F1}	$0.00	-
Jun 3, 2026	Kimberlee C. Drapkin - Director	Grant or award	Stock Option (right to buy)	53,250	$0.00	-
Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in full on the earlier of the first anniversary of the date of grant or the 2027 annual stockholder meeting, subject to… Full note on SEC EDGAR
Jun 3, 2026	John A. Stalfort III - Director	Grant or award	Common Stock	35,500^{footnote F1}	$0.00	-
Jun 3, 2026	John A. Stalfort III - Director	Grant or award	Stock Option (right to buy)	53,250	$0.00	-
Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in full on the earlier of the first anniversary of the date of grant or the 2027 annual stockholder meeting, subject to… Full note on SEC EDGAR
Jun 3, 2026	Derrell Porter - Director	Grant or award	Common Stock	35,500^{footnote F1}	$0.00	-
Jun 3, 2026	Derrell Porter - Director	Grant or award	Stock Option (right to buy)	53,250	$0.00	-
Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in full on the earlier of the first anniversary of the date of grant or the 2027 annual stockholder meeting, subject to… Full note on SEC EDGAR
Jun 3, 2026	Jeffrey L. Ives - Director	Grant or award	Common Stock	35,500^{footnote F1}	$0.00	-
Jun 3, 2026	Jeffrey L. Ives - Director	Grant or award	Stock Option (right to buy)	53,250	$0.00	-
Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in full on the earlier of the first anniversary of the date of grant or the 2027 annual stockholder meeting, subject to… Full note on SEC EDGAR
Jun 3, 2026	George Golumbeski - Director	Grant or award	Common Stock	35,500^{footnote F1}	$0.00	-
Jun 3, 2026	George Golumbeski - Director	Grant or award	Stock Option (right to buy)	53,250	$0.00	-
Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in full on the earlier of the first anniversary of the date of grant or the 2027 annual stockholder meeting, subject to… Full note on SEC EDGAR
Jun 3, 2026	Laura Stoppel - Director	Grant or award	Common Stock	35,500^{footnote F1}	$0.00	-
Jun 3, 2026	Laura Stoppel - Director	Grant or award	Stock Option (right to buy)	53,250	$0.00	-
Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in full on the earlier of the first anniversary of the date of grant or the 2027 annual stockholder meeting, subject to… Full note on SEC EDGAR
Mar 16, 2026	RA CAPITAL MANAGEMENT, L.P.	Grant or award	Common Stock	6,060,606	$3.30	$20.00M
Mar 6, 2026	Derek M. Meisner - Officer	Option exercise	Employee Stock Option (right to buy)	2,090	$0.00	-
Mar 6, 2026	Derek M. Meisner - Officer	Option exercise	Common Stock	2,090	$1.85	$4K
Mar 6, 2026	Derek M. Meisner - Officer	Open-market sale	Common Stock	2,090	$3.26	$7K
Feb 27, 2026	Derek M. Meisner - Officer	Option exercise	Common Stock	9,406	$1.85	$17K
Feb 27, 2026	Derek M. Meisner - Officer	Open-market sale	Common Stock	9,406	$3.01^{footnote F2}	$28K
Feb 27, 2026	Derek M. Meisner - Officer	Option exercise	Employee Stock Option (right to buy)	9,406	$0.00	-
Footnote F2 (price): The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $3.0000 to $3.0300. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security… Full note on SEC EDGAR
Jan 26, 2026	Derek M. Meisner - Officer	Option exercise	Common Stock	15,085	$1.85	$28K
Jan 28, 2026	Derek M. Meisner - Officer	Option exercise	Common Stock	2,671	$1.85	$5K
Jan 26, 2026	Derek M. Meisner - Officer	Open-market sale	Common Stock	15,085	$3.00^{footnote F2}	$45K
Jan 28, 2026	Derek M. Meisner - Officer	Open-market sale	Common Stock	2,671	$3.00^{footnote F2}	$8K
Jan 26, 2026	Derek M. Meisner - Officer	Option exercise	Employee Stock Option (right to buy)	15,085	$0.00	-
Jan 28, 2026	Derek M. Meisner - Officer	Option exercise	Employee Stock Option (right to buy)	2,671	$0.00	-
Footnote F2 (price): The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $3.0000 to $3.0100. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security… Full note on SEC EDGAR
Jan 21, 2026	Derek M. Meisner - Officer	Open-market sale	Common Stock	2,247^{footnote F1}	$1.81^{footnote F2}	$4K
Jan 22, 2026	Derek M. Meisner - Officer	Open-market sale	Common Stock	1,054^{footnote F1}	$1.84	$2K
Jan 23, 2026	Derek M. Meisner - Officer	Open-market sale	Common Stock	5,633^{footnote F3}	$1.90^{footnote F4}	$11K
Footnote F1 (shares): Represents the number of shares sold by the Reporting Person through an automatic "sell to cover" transaction to satisfy tax withholding obligations in connection with the vesting of restricted stock units pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on… Full note on SEC EDGAR Footnote F2 (price): The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $1.7600 to $1.8700. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security… Full note on SEC EDGAR Footnote F3 (shares): Represents the number of shares sold by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 29, 2025. Footnote F4 (price): The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $1.8800 to $1.9400. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security… Full note on SEC EDGAR
Jan 21, 2026	Eric Siemers - Officer	Open-market sale	Common Stock	2,331^{footnote F1}	$1.80^{footnote F2}	$4K
Jan 22, 2026	Eric Siemers - Officer	Open-market sale	Common Stock	895^{footnote F1}	$1.82	$2K
Footnote F1 (shares): Represents the number of shares sold by the Reporting Person through an automatic "sell to cover" transaction to satisfy tax withholding obligations in connection with the vesting of restricted stock units pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on… Full note on SEC EDGAR Footnote F2 (price): The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $1.7600 to $1.8700. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security… Full note on SEC EDGAR
Jan 21, 2026	Matt Zuga - Officer	Open-market sale	Common Stock	2,473^{footnote F1}	$1.81^{footnote F2}	$4K
Jan 22, 2026	Matt Zuga - Officer	Open-market sale	Common Stock	1,687^{footnote F1}	$1.86	$3K
Footnote F1 (shares): Represents the number of shares sold by the Reporting Person through an automatic "sell to cover" transaction to satisfy tax withholding obligations in connection with the vesting of restricted stock units pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on… Full note on SEC EDGAR Footnote F2 (price): The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $1.7650 to $1.8700. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security… Full note on SEC EDGAR
Jan 21, 2026	Daniel Joseph Oconnell - Officer	Open-market sale	Common Stock	9,346^{footnote F1}	$1.81^{footnote F2}	$17K
Jan 22, 2026	Daniel Joseph Oconnell - Officer	Open-market sale	Common Stock	2,689^{footnote F1}	$1.88^{footnote F3}	$5K
Footnote F1 (shares): Represents the number of shares sold by the Reporting Person through an automatic "sell to cover" transaction to satisfy tax withholding obligations in connection with the vesting of restricted stock units pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on… Full note on SEC EDGAR Footnote F2 (price): The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $1.7600 to $1.8800. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security… Full note on SEC EDGAR Footnote F3 (price): The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $1.8700 to $1.9000. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security… Full note on SEC EDGAR
Jan 21, 2026	Russell Barton - Officer	Open-market sale	Common Stock	2,315^{footnote F1}	$1.81^{footnote F2}	$4K
Jan 22, 2026	Russell Barton - Officer	Open-market sale	Common Stock	462^{footnote F1}	$1.84	$850
Footnote F1 (shares): Represents the number of shares sold by the Reporting Person through an automatic "sell to cover" transaction to satisfy tax withholding obligations in connection with the vesting of restricted stock units pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on… Full note on SEC EDGAR Footnote F2 (price): The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $1.7600 to $1.8700. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security… Full note on SEC EDGAR
Jan 20, 2026	Daniel Joseph Oconnell - Officer	Grant or award	Common Stock	299,800^{footnote F1}	$0.00	-
Jan 20, 2026	Daniel Joseph Oconnell - Officer	Grant or award	Employee Stock Option (right to buy)	450,000	$0.00	-
Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in three equal annual installments commencing one year after the grant date, subject to the Reporting Person's… Full note on SEC EDGAR
Jan 16, 2026	Matt Zuga - Officer	Grant or award	Common Stock	99,133^{footnote F1}	$0.00	-
Jan 16, 2026	Matt Zuga - Officer	Grant or award	Employee Stock Option (right to buy)	148,700	$0.00	-
Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in three equal annual installments commencing one year after the grant date, subject to the Reporting Person's… Full note on SEC EDGAR
Jan 16, 2026	Derek M. Meisner - Officer	Grant or award	Common Stock	99,133^{footnote F1}	$0.00	-
Jan 16, 2026	Derek M. Meisner - Officer	Grant or award	Employee Stock Option (right to buy)	148,700	$0.00	-
Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in three equal annual installments commencing one year after the grant date, subject to the Reporting Person's… Full note on SEC EDGAR
Jan 16, 2026	Eric Siemers - Officer	Grant or award	Common Stock	99,133^{footnote F1}	$0.00	-
Jan 16, 2026	Eric Siemers - Officer	Grant or award	Employee Stock Option (right to buy)	148,700	$0.00	-
Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in three equal annual installments commencing one year after the grant date, subject to the Reporting Person's… Full note on SEC EDGAR
Jan 16, 2026	Russell Barton - Officer	Grant or award	Common Stock	84,600^{footnote F1}	$0.00	-
Jan 16, 2026	Russell Barton - Officer	Grant or award	Employee Stock Option (right to buy)	126,900	$0.00	-
Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in three equal annual installments commencing one year after the grant date, subject to the Reporting Person's… Full note on SEC EDGAR
Jan 16, 2026	Amy Schacterle - Officer	Grant or award	Common Stock	84,600^{footnote F1}	$0.00	-
Jan 16, 2026	Amy Schacterle - Officer	Grant or award	Employee Stock Option (right to buy)	126,900	$0.00	-
Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in three equal annual installments commencing one year after the grant date, subject to the Reporting Person's… Full note on SEC EDGAR
Jan 16, 2026	James J. Doherty - Officer	Grant or award	Common Stock	166,867^{footnote F1}	$0.00	-
Jan 16, 2026	James J. Doherty - Officer	Grant or award	Employee Stock Option (right to buy)	250,300	$0.00	-
Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in three equal annual installments commencing one year after the grant date, subject to the Reporting Person's… Full note on SEC EDGAR
Nov 5, 2024	Amy Schacterle - Officer	Grant or award	Employee Stock Option (right to buy)	340,000	$0.00	-

Recent ABOS Form 8-K filings

Read ABOS company news

Sep 16, 2026Item 7.01, 9.01

Read the filing on SEC EDGAR

Aug 12, 2026Item 2.02, 7.01, 9.01

Read the filing on SEC EDGAR

Jun 16, 2026Item 7.01, 8.01, 9.01

Read the filing on SEC EDGAR

Jun 3, 2026Item 5.07

Recent ABOS Form 144 notices of proposed sale

An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.

Filed	Filer	Relationship	Shares	Market value	Notice
Jun 17, 2026	-	-	-	-	View on EDGAR
Jun 16, 2026	-	-	-	-

ABOS insider trading FAQ

What is the latest insider trade for ABOS?

Acumen Pharmaceuticals, Inc. (ABOS) has filed no insider reports in the last 90 days. The most recent on record is dated 2026-06-17. The full record for ABOS runs to 27 Form 4 filings, the earliest from 2024-11-06. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.

How many insiders are buying ABOS stock?

No insider purchases of ABOS were filed in the last 90 days.

How many insiders are selling ABOS stock?

No insider sales of ABOS were filed in the last 90 days. 19 sales are on record for this company.

Where can I see ABOS SEC filings (Form 4, 10-K, 10-Q, 8-K)?

This page collects ABOS Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.

More Health Care companies with insider activity

Recent insider filings

The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.

Jun 17, 2026 - Derrell Porter view on EDGAR
Jun 10, 2026 - Nathan B. Fountain view on EDGAR
Jun 5, 2026 - RA CAPITAL MANAGEMENT, L.P. view on EDGAR
Jun 5, 2026 - Nathan B. Fountain view on EDGAR
Jun 5, 2026 - Kimberlee C. Drapkin view on EDGAR
Jun 5, 2026 - John A. Stalfort III view on EDGAR
Jun 5, 2026 - Derrell Porter view on EDGAR
Jun 5, 2026 - Jeffrey L. Ives view on EDGAR
Jun 5, 2026 - George Golumbeski view on EDGAR

Related companies with recent insider activity

Learn more

What the Form 4 transaction codes mean: Grants, option exercises, gifts and tax withholding are not trades on the market. The codes say which is which.
Form 144 vs Form 4: A Form 144 announces a planned sale; the Form 4 reports it after it happens.
Insider activity in Health Care: Where ABOS's peers are being bought and sold.
Every recent Form 4: The market-wide feed, updated as filings arrive from SEC EDGAR.

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Date

Insider

Transaction

Security

Price

Value

Jun 15, 2026

Derrell Porter - Director

Option exercise

Common Stock

6,460

$1.07

$7K

Jun 15, 2026

Derrell Porter - Director

Open-market sale

Common Stock

6,460

$2.35

$15K

Jun 17, 2026

Derrell Porter - Director

Option exercise

Common Stock

13,040

$1.07

$14K

Jun 17, 2026

Derrell Porter - Director

Open-market sale

Common Stock

13,040

$2.33

$30K

Jun 16, 2026

Derrell Porter - Director

Open-market sale

Common Stock

12,800

$2.33^{footnote F1}

$30K

Jun 15, 2026

Derrell Porter - Director

Option exercise

Stock Option (right to buy)

6,460

$0.00

Jun 17, 2026

Derrell Porter - Director

Option exercise

Stock Option (right to buy)

13,040

$0.00

Footnote F1 (price): The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $2.305 to $2.345. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security holder… Full note on SEC EDGAR

Jun 9, 2026

Nathan B. Fountain - Director

Open-market sale

Common Stock

6,400

$2.23^{footnote F1}

$14K

Footnote F1 (price): The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $2.2300 to $2.2311. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security… Full note on SEC EDGAR

Jun 3, 2026

RA CAPITAL MANAGEMENT, L.P.

Grant or award

Common Stock

35,500^{footnote F1}

$0.00

Jun 3, 2026

RA CAPITAL MANAGEMENT, L.P.

Grant or award

Stock Option (Right to Buy)

53,250

$0.00

Footnote F1 (shares): Represents a restricted stock unit ("RSU") award to Laura Stoppel. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in full on the earlier of the first anniversary of the date of grant or the 2027 annual stockholder… Full note on SEC EDGAR

Jun 3, 2026

Nathan B. Fountain - Director

Grant or award

Common Stock

35,500^{footnote F1}

$0.00

Jun 3, 2026

Nathan B. Fountain - Director

Grant or award

Stock Option (right to buy)

53,250

$0.00

Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in full on the earlier of the first anniversary of the date of grant or the 2027 annual stockholder meeting, subject to… Full note on SEC EDGAR

Jun 3, 2026

Kimberlee C. Drapkin - Director

Grant or award

Common Stock

35,500^{footnote F1}

$0.00

Jun 3, 2026

Kimberlee C. Drapkin - Director

Grant or award

Stock Option (right to buy)

53,250

$0.00

Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in full on the earlier of the first anniversary of the date of grant or the 2027 annual stockholder meeting, subject to… Full note on SEC EDGAR

Jun 3, 2026

John A. Stalfort III - Director

Grant or award

Common Stock

35,500^{footnote F1}

$0.00

Jun 3, 2026

John A. Stalfort III - Director

Grant or award

Stock Option (right to buy)

53,250

$0.00

Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in full on the earlier of the first anniversary of the date of grant or the 2027 annual stockholder meeting, subject to… Full note on SEC EDGAR

Jun 3, 2026

Derrell Porter - Director

Grant or award

Common Stock

35,500^{footnote F1}

$0.00

Jun 3, 2026

Derrell Porter - Director

Grant or award

Stock Option (right to buy)

53,250

$0.00

Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in full on the earlier of the first anniversary of the date of grant or the 2027 annual stockholder meeting, subject to… Full note on SEC EDGAR

Jun 3, 2026

Jeffrey L. Ives - Director

Grant or award

Common Stock

35,500^{footnote F1}

$0.00

Jun 3, 2026

Jeffrey L. Ives - Director

Grant or award

Stock Option (right to buy)

53,250

$0.00

Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in full on the earlier of the first anniversary of the date of grant or the 2027 annual stockholder meeting, subject to… Full note on SEC EDGAR

Jun 3, 2026

George Golumbeski - Director

Grant or award

Common Stock

35,500^{footnote F1}

$0.00

Jun 3, 2026

George Golumbeski - Director

Grant or award

Stock Option (right to buy)

53,250

$0.00

Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in full on the earlier of the first anniversary of the date of grant or the 2027 annual stockholder meeting, subject to… Full note on SEC EDGAR

Jun 3, 2026

Laura Stoppel - Director

Grant or award

Common Stock

35,500^{footnote F1}

$0.00

Jun 3, 2026

Laura Stoppel - Director

Grant or award

Stock Option (right to buy)

53,250

$0.00

Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in full on the earlier of the first anniversary of the date of grant or the 2027 annual stockholder meeting, subject to… Full note on SEC EDGAR

Mar 16, 2026

RA CAPITAL MANAGEMENT, L.P.

Grant or award

Common Stock

6,060,606

$3.30

$20.00M

Mar 6, 2026

Derek M. Meisner - Officer

Option exercise

Employee Stock Option (right to buy)

2,090

$0.00

Mar 6, 2026

Derek M. Meisner - Officer

Option exercise

Common Stock

2,090

$1.85

$4K

Mar 6, 2026

Derek M. Meisner - Officer

Open-market sale

Common Stock

2,090

$3.26

$7K

Feb 27, 2026

Derek M. Meisner - Officer

Option exercise

Common Stock

9,406

$1.85

$17K

Feb 27, 2026

Derek M. Meisner - Officer

Open-market sale

Common Stock

9,406

$3.01^{footnote F2}

$28K

Feb 27, 2026

Derek M. Meisner - Officer

Option exercise

Employee Stock Option (right to buy)

9,406

$0.00

Footnote F2 (price): The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $3.0000 to $3.0300. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security… Full note on SEC EDGAR

Jan 26, 2026

Derek M. Meisner - Officer

Option exercise

Common Stock

15,085

$1.85

$28K

Jan 28, 2026

Derek M. Meisner - Officer

Option exercise

Common Stock

2,671

$1.85

$5K

Jan 26, 2026

Derek M. Meisner - Officer

Open-market sale

Common Stock

15,085

$3.00^{footnote F2}

$45K

Jan 28, 2026

Derek M. Meisner - Officer

Open-market sale

Common Stock

2,671

$3.00^{footnote F2}

$8K

Jan 26, 2026

Derek M. Meisner - Officer

Option exercise

Employee Stock Option (right to buy)

15,085

$0.00

Jan 28, 2026

Derek M. Meisner - Officer

Option exercise

Employee Stock Option (right to buy)

2,671

$0.00

Footnote F2 (price): The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $3.0000 to $3.0100. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security… Full note on SEC EDGAR

Jan 21, 2026

Derek M. Meisner - Officer

Open-market sale

Common Stock

2,247^{footnote F1}

$1.81^{footnote F2}

$4K

Jan 22, 2026

Derek M. Meisner - Officer

Open-market sale

Common Stock

1,054^{footnote F1}

$1.84

$2K

Jan 23, 2026

Derek M. Meisner - Officer

Open-market sale

Common Stock

5,633^{footnote F3}

$1.90^{footnote F4}

$11K

Footnote F1 (shares): Represents the number of shares sold by the Reporting Person through an automatic "sell to cover" transaction to satisfy tax withholding obligations in connection with the vesting of restricted stock units pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on… Full note on SEC EDGAR
Footnote F2 (price): The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $1.7600 to $1.8700. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security… Full note on SEC EDGAR
Footnote F3 (shares): Represents the number of shares sold by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 29, 2025.
Footnote F4 (price): The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $1.8800 to $1.9400. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security… Full note on SEC EDGAR

Jan 21, 2026

Eric Siemers - Officer

Open-market sale

Common Stock

2,331^{footnote F1}

$1.80^{footnote F2}

$4K

Jan 22, 2026

Eric Siemers - Officer

Open-market sale

Common Stock

895^{footnote F1}

$1.82

$2K

Footnote F1 (shares): Represents the number of shares sold by the Reporting Person through an automatic "sell to cover" transaction to satisfy tax withholding obligations in connection with the vesting of restricted stock units pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on… Full note on SEC EDGAR
Footnote F2 (price): The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $1.7600 to $1.8700. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security… Full note on SEC EDGAR

Jan 21, 2026

Matt Zuga - Officer

Open-market sale

Common Stock

2,473^{footnote F1}

$1.81^{footnote F2}

$4K

Jan 22, 2026

Matt Zuga - Officer

Open-market sale

Common Stock

1,687^{footnote F1}

$1.86

$3K

Footnote F1 (shares): Represents the number of shares sold by the Reporting Person through an automatic "sell to cover" transaction to satisfy tax withholding obligations in connection with the vesting of restricted stock units pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on… Full note on SEC EDGAR
Footnote F2 (price): The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $1.7650 to $1.8700. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security… Full note on SEC EDGAR

Jan 21, 2026

Daniel Joseph Oconnell - Officer

Open-market sale

Common Stock

9,346^{footnote F1}

$1.81^{footnote F2}

$17K

Jan 22, 2026

Daniel Joseph Oconnell - Officer

Open-market sale

Common Stock

2,689^{footnote F1}

$1.88^{footnote F3}

$5K

Footnote F1 (shares): Represents the number of shares sold by the Reporting Person through an automatic "sell to cover" transaction to satisfy tax withholding obligations in connection with the vesting of restricted stock units pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on… Full note on SEC EDGAR
Footnote F2 (price): The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $1.7600 to $1.8800. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security… Full note on SEC EDGAR
Footnote F3 (price): The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $1.8700 to $1.9000. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security… Full note on SEC EDGAR

Jan 21, 2026

Russell Barton - Officer

Open-market sale

Common Stock

2,315^{footnote F1}

$1.81^{footnote F2}

$4K

Jan 22, 2026

Russell Barton - Officer

Open-market sale

Common Stock

462^{footnote F1}

$1.84

$850

Footnote F1 (shares): Represents the number of shares sold by the Reporting Person through an automatic "sell to cover" transaction to satisfy tax withholding obligations in connection with the vesting of restricted stock units pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on… Full note on SEC EDGAR
Footnote F2 (price): The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $1.7600 to $1.8700. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security… Full note on SEC EDGAR

Jan 20, 2026

Daniel Joseph Oconnell - Officer

Grant or award

Common Stock

299,800^{footnote F1}

$0.00

Jan 20, 2026

Daniel Joseph Oconnell - Officer

Grant or award

Employee Stock Option (right to buy)

450,000

$0.00

Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in three equal annual installments commencing one year after the grant date, subject to the Reporting Person's… Full note on SEC EDGAR

Jan 16, 2026

Matt Zuga - Officer

Grant or award

Common Stock

99,133^{footnote F1}

$0.00

Jan 16, 2026

Matt Zuga - Officer

Grant or award

Employee Stock Option (right to buy)

148,700

$0.00

Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in three equal annual installments commencing one year after the grant date, subject to the Reporting Person's… Full note on SEC EDGAR

Jan 16, 2026

Derek M. Meisner - Officer

Grant or award

Common Stock

99,133^{footnote F1}

$0.00

Jan 16, 2026

Derek M. Meisner - Officer

Grant or award

Employee Stock Option (right to buy)

148,700

$0.00

Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in three equal annual installments commencing one year after the grant date, subject to the Reporting Person's… Full note on SEC EDGAR

Jan 16, 2026

Eric Siemers - Officer

Grant or award

Common Stock

99,133^{footnote F1}

$0.00

Jan 16, 2026

Eric Siemers - Officer

Grant or award

Employee Stock Option (right to buy)

148,700

$0.00

Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in three equal annual installments commencing one year after the grant date, subject to the Reporting Person's… Full note on SEC EDGAR

Jan 16, 2026

Russell Barton - Officer

Grant or award

Common Stock

84,600^{footnote F1}

$0.00

Jan 16, 2026

Russell Barton - Officer

Grant or award

Employee Stock Option (right to buy)

126,900

$0.00

Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in three equal annual installments commencing one year after the grant date, subject to the Reporting Person's… Full note on SEC EDGAR

Jan 16, 2026

Amy Schacterle - Officer

Grant or award

Common Stock

84,600^{footnote F1}

$0.00

Jan 16, 2026

Amy Schacterle - Officer

Grant or award

Employee Stock Option (right to buy)

126,900

$0.00

Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in three equal annual installments commencing one year after the grant date, subject to the Reporting Person's… Full note on SEC EDGAR

Jan 16, 2026

James J. Doherty - Officer

Grant or award

Common Stock

166,867^{footnote F1}

$0.00

Jan 16, 2026

James J. Doherty - Officer

Grant or award

Employee Stock Option (right to buy)

250,300

$0.00

Footnote F1 (shares): Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in three equal annual installments commencing one year after the grant date, subject to the Reporting Person's… Full note on SEC EDGAR

Nov 5, 2024

Amy Schacterle - Officer

Grant or award

Employee Stock Option (right to buy)

340,000

$0.00

Filed

Filer

Relationship

Market value

Notice

Jun 17, 2026

View on EDGAR

Jun 16, 2026