Neuronetics, Inc. (STIM)

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

Net insider buying (90d)Watch STIM

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Latest STIM insider trades

Jorey Chernett - 10% Owner
Open-market purchase$44K
Aug 14, 2026
Jorey Chernett - 10% Owner

About Neuronetics, Inc. (STIM)

The SEC lists Neuronetics, Inc. under CIK 0001227636, in surgical and medical instruments and apparatus. We track it alongside the rest of the Health Care sector.

Sector: Health Care

SEC filings for STIM on EDGAR

STIM Form 4 activity by transaction type, last 90 days

Form 4 transaction type	Transactions	Shares	Total value
Open-market purchase	1	14,000	$44K
Open-market sale	1	100	$321
Grant or award	1	500,000

Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.

STIM insider transactions (Form 4)

57 Form 4 filings on record, the earliest from Oct 10, 2024, newest first. Filing history page 2 of 2.

Date	Insider	Transaction	Security	Shares	Price	Value
Feb 26, 2026	Keith J. Sullivan - Officer	Open-market sale	Common Stock	8,452^{footnote F1}	$1.35^{footnote F2}	$11K
Footnote F1 (shares): The sales reported in this Form 4 were non-discretionary sales to satisfy the Reporting Person's tax withholding obligation upon vesting of a portion of a restricted stock unit award. Footnote F2 (price): The price reported is a weighted average price. These shares were sold in multiple transactions at per share prices ranging from $1.38 to $1.31. The Reporting Person undertakes to provide upon request to the SEC staff, the Issuer, or any stockholder of the Issuer, full… Full note on SEC EDGAR
Feb 23, 2026	Steven Pfanstiel - Officer	Grant or award	Common Stock	250,000^{footnote F1}	$0.00^{footnote F2}	-
Footnote F1 (shares): Represents a restricted stock unit ("RSU") award that vests in three equal annual installments beginning on February 23, 2027, in each case subject to continuous service of the Reporting Person through such date. Footnote F2 (price): Each RSU represents a contingent right to receive one share of the Issuer's common stock.
Feb 23, 2026	William Andrew Macan - Officer	Grant or award	Common Stock	210,000^{footnote F1}	$0.00^{footnote F2}	-
Footnote F1 (shares): Represents a restricted stock unit ("RSU") award that vests in three equal annual installments beginning on February 23, 2027, in each case subject to continuous service of the Reporting Person through such date. Footnote F2 (price): Each RSU represents a contingent right to receive one share of the Issuer's common stock.
Feb 12, 2026	Keith J. Sullivan - Officer	Open-market sale	Common Stock	33,847^{footnote F1}	$1.65^{footnote F2}	$56K
Footnote F1 (shares): The sales reported in this Form 4 were non-discretionary sales to satisfy the Reporting Person's tax withholding obligation upon vesting of a portion of a restricted stock unit award. Footnote F2 (price): The price reported is a weighted average price. These shares were sold in multiple transactions at per share prices ranging from $1.56 to $1.72. The Reporting Person undertakes to provide upon request to the SEC staff, the Issuer, or any stockholder of the Issuer, full… Full note on SEC EDGAR
Feb 12, 2026	William Andrew Macan - Officer	Open-market sale	Common Stock	14,120^{footnote F1}	$1.65^{footnote F2}	$23K
Footnote F1 (shares): The sales reported in this Form 4 were non-discretionary sales to satisfy the Reporting Person's tax withholding obligation upon vesting of a portion of a restricted stock unit award. Footnote F2 (price): The price reported is a weighted average price. These shares were sold in multiple transactions at per share prices ranging from $1.56 to $1.72. The Reporting Person undertakes to provide upon request to the SEC staff, the Issuer, or any stockholder of the Issuer, full… Full note on SEC EDGAR
Feb 10, 2026	William Andrew Macan - Officer	Open-market sale	Common Stock	3,485^{footnote F1}	$1.55^{footnote F2}	$5K
Footnote F1 (shares): The sales reported in this Form 4 were non-discretionary sales to satisfy the Reporting Person's tax withholding obligation upon vesting of a portion of a restricted stock unit award. Footnote F2 (price): The price reported is a weighted average price. These shares were sold in multiple transactions at per share prices ranging from $1.45 to $1.60. The Reporting Person undertakes to provide upon request to the SEC staff, the Issuer, or any stockholder of the Issuer, full… Full note on SEC EDGAR
Feb 10, 2026	Keith J. Sullivan - Officer	Open-market sale	Common Stock	40,976^{footnote F1}	$1.55^{footnote F2}	$64K
Footnote F1 (shares): The sales reported in this Form 4 were non-discretionary sales to satisfy the Reporting Person's tax withholding obligation upon vesting of a portion of a restricted stock unit award. Footnote F2 (price): The price reported is a weighted average price. These shares were sold in multiple transactions at per share prices ranging from $1.45 to $1.60. The Reporting Person undertakes to provide upon request to the SEC staff, the Issuer, or any stockholder of the Issuer, full… Full note on SEC EDGAR
Dec 30, 2025	William Andrew Macan - Officer	Grant or award	Common Stock	164,361^{footnote F1}	$0.00^{footnote F2}	-
Footnote F1 (shares): Represents a restricted stock unit ("RSU") award that vests on the earlier of (i) June 30, 2027 and (ii) the termination of Mr. Macan's employment from the Issuer without cause. Footnote F2 (price): Each RSU represents a contingent right to receive one share of the Issuer's common stock.
Dec 30, 2025	Steven Pfanstiel - Officer	Grant or award	Common Stock	170,212^{footnote F1}	$0.00^{footnote F2}	-
Footnote F1 (shares): Represents a restricted stock unit ("RSU") award that vests on the earlier of (i) June 30, 2027 and (ii) the termination of Mr. Pfanstiel's employment from the Issuer without cause. Footnote F2 (price): Each RSU represents a contingent right to receive one share of the Issuer's common stock.
Oct 20, 2025	Sheryl L. Conley	Grant or award	Common Stock	7,326^{footnote F2}	$0.00^{footnote F3}	-
Footnote F2 (shares): Represents a restricted stock unit ("RSU") award that vested immediately upon the grant. Footnote F3 (price): Each RSU represents a right to receive one share of the Issuer's common stock.
Oct 20, 2025	Sasha Cucuz	Grant or award	Common Stock	6,410^{footnote F2}	$0.00^{footnote F3}	-
Footnote F2 (shares): Represents a restricted stock unit ("RSU") award that vested immediately upon the grant. Footnote F3 (price): Each RSU represents a right to receive one share of the Issuer's common stock.
Oct 20, 2025	Robert Cascella	Grant or award	Common Stock	10,531^{footnote F2}	$0.00^{footnote F3}	-
Footnote F2 (shares): Represents a restricted stock unit ("RSU") award that vested immediately upon the grant. Footnote F3 (price): Each RSU represents a right to receive one share of the Issuer's common stock.
Oct 20, 2025	Glenn P. Muir	Grant or award	Common Stock	7,554^{footnote F2}	$0.00^{footnote F3}	-
Footnote F2 (shares): Represents a restricted stock unit ("RSU") award that vested immediately upon the grant. Footnote F3 (price): Each RSU represents a right to receive one share of the Issuer's common stock.
Aug 8, 2025	Madryn Asset Management, LP	Open-market sale	Common Stock	192,806	$3.72	$717K
Aug 8, 2025	Madryn Asset Management, LP	Open-market sale	Common Stock	2,925,554	$3.72	$10.88M
Aug 8, 2025	Madryn Asset Management, LP	Open-market sale	Common Stock	381,640	$3.72	$1.42M
Jul 15, 2025	Steven Pfanstiel - Officer	Grant or award	Common Stock	200,000	$0.00	-
Jul 15, 2025	Steven Pfanstiel - Officer	Grant or award	Common Stock	200,000	$0.00	-
May 22, 2025	Megan Rosengarten	Grant or award	Common Stock	30,000	-	-
May 22, 2025	Sheryl L. Conley	Grant or award	Common Stock	30,000	-	-
May 22, 2025	Avinash Amin	Grant or award	Common Stock	30,000	-	-
May 22, 2025	Sasha Cucuz	Grant or award	Common Stock	30,000	-	-
May 22, 2025	Robert Cascella	Grant or award	Common Stock	36,250	-	-
May 22, 2025	Glenn P. Muir	Grant or award	Common Stock	30,000	-	-
May 12, 2025	Stephen Furlong - Officer	Open-market sale	Common Stock	193,460	$4.27	$826K
May 13, 2025	Stephen Furlong - Officer	Open-market sale	Common Stock	6,540	$4.16	$27K
Dec 10, 2024	Keith J. Sullivan - Officer	Grant or award	Performance Restricted Stock Unit	450,000	$0.00	-
Dec 10, 2024	William Andrew Macan - Officer	Grant or award	Performance Restricted Stock Unit	135,000	$0.00	-
Dec 10, 2024	Stephen Furlong - Officer	Grant or award	Performance Restricted Stock Unit	150,000	$0.00	-
Oct 8, 2024	Stephen Furlong - Officer	Open-market sale	Common Stock	1,368	$0.82	$1K
Oct 8, 2024	William Andrew Macan - Officer	Open-market sale	Common Stock	1,541	$0.82	$1K

Recent STIM Form 8-K filings

Read STIM company news

Aug 17, 2026Item 5.02, 9.01

Read the filing on SEC EDGAR

Aug 11, 2026Item 2.02, 7.01, 9.01

Read the filing on SEC EDGAR

Jul 20, 2026Item 5.02, 7.01, 9.01

Read the filing on SEC EDGAR

Jun 23, 2026Item 5.02, 9.01

Recent STIM 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
Aug 19, 2026	MACAN WILLIAM ANDREW	Former Officer	149,891	$464K	View on EDGAR
Aug 18, 2026	MACAN WILLIAM ANDREW	Officer	121,033

STIM insider trading FAQ

What is the latest insider trade for STIM?

Neuronetics, Inc. (STIM) had 2 insider filings in the last 90 days, with the most recent on 2026-08-17. The full record for STIM runs to 57 Form 4 filings, the earliest from 2024-10-10. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.

How many insiders are buying STIM stock?

1 insider purchase of STIM was filed in the last 90 days, totaling $44K.

How many insiders are selling STIM stock?

1 insider sale of STIM was filed in the last 90 days, totaling $321.

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

This page collects STIM 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.

Aug 17, 2026 - Jorey Chernett view on EDGAR
Jul 23, 2026 - Nir Naor view on EDGAR
Jul 15, 2026 - Jorey Chernett view on EDGAR
Jun 17, 2026 - Avinash Amin view on EDGAR
Jun 17, 2026 - Madryn Asset Management, LP view on EDGAR
May 29, 2026 - Megan Rosengarten view on EDGAR
May 29, 2026 - Glenn P. Muir view on EDGAR
May 29, 2026 - Sasha Cucuz view on EDGAR
May 29, 2026 - Sheryl L. Conley view on EDGAR

Related companies with recent insider activity

Learn more

How to read insider buying signals: What an open-market purchase by an insider can and cannot tell you.
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 STIM'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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Form 4 transaction type

Transactions

Total value

Open-market purchase

14,000

$44K

Open-market sale

100

$321

Grant or award

500,000

Date

Insider

Transaction

Security

Price

Value

Feb 26, 2026

Keith J. Sullivan - Officer

Open-market sale

Common Stock

8,452^{footnote F1}

$1.35^{footnote F2}

$11K

Footnote F1 (shares): The sales reported in this Form 4 were non-discretionary sales to satisfy the Reporting Person's tax withholding obligation upon vesting of a portion of a restricted stock unit award.
Footnote F2 (price): The price reported is a weighted average price. These shares were sold in multiple transactions at per share prices ranging from $1.38 to $1.31. The Reporting Person undertakes to provide upon request to the SEC staff, the Issuer, or any stockholder of the Issuer, full… Full note on SEC EDGAR

Feb 23, 2026

Steven Pfanstiel - Officer

Grant or award

Common Stock

250,000^{footnote F1}

$0.00^{footnote F2}

Footnote F1 (shares): Represents a restricted stock unit ("RSU") award that vests in three equal annual installments beginning on February 23, 2027, in each case subject to continuous service of the Reporting Person through such date.
Footnote F2 (price): Each RSU represents a contingent right to receive one share of the Issuer's common stock.

Feb 23, 2026

William Andrew Macan - Officer

Grant or award

Common Stock

210,000^{footnote F1}

$0.00^{footnote F2}

Footnote F1 (shares): Represents a restricted stock unit ("RSU") award that vests in three equal annual installments beginning on February 23, 2027, in each case subject to continuous service of the Reporting Person through such date.
Footnote F2 (price): Each RSU represents a contingent right to receive one share of the Issuer's common stock.

Feb 12, 2026

Keith J. Sullivan - Officer

Open-market sale

Common Stock

33,847^{footnote F1}

$1.65^{footnote F2}

$56K

Footnote F1 (shares): The sales reported in this Form 4 were non-discretionary sales to satisfy the Reporting Person's tax withholding obligation upon vesting of a portion of a restricted stock unit award.
Footnote F2 (price): The price reported is a weighted average price. These shares were sold in multiple transactions at per share prices ranging from $1.56 to $1.72. The Reporting Person undertakes to provide upon request to the SEC staff, the Issuer, or any stockholder of the Issuer, full… Full note on SEC EDGAR

Feb 12, 2026

William Andrew Macan - Officer

Open-market sale

Common Stock

14,120^{footnote F1}

$1.65^{footnote F2}

$23K

Footnote F1 (shares): The sales reported in this Form 4 were non-discretionary sales to satisfy the Reporting Person's tax withholding obligation upon vesting of a portion of a restricted stock unit award.
Footnote F2 (price): The price reported is a weighted average price. These shares were sold in multiple transactions at per share prices ranging from $1.56 to $1.72. The Reporting Person undertakes to provide upon request to the SEC staff, the Issuer, or any stockholder of the Issuer, full… Full note on SEC EDGAR

Feb 10, 2026

William Andrew Macan - Officer

Open-market sale

Common Stock

3,485^{footnote F1}

$1.55^{footnote F2}

$5K

Footnote F1 (shares): The sales reported in this Form 4 were non-discretionary sales to satisfy the Reporting Person's tax withholding obligation upon vesting of a portion of a restricted stock unit award.
Footnote F2 (price): The price reported is a weighted average price. These shares were sold in multiple transactions at per share prices ranging from $1.45 to $1.60. The Reporting Person undertakes to provide upon request to the SEC staff, the Issuer, or any stockholder of the Issuer, full… Full note on SEC EDGAR

Feb 10, 2026

Keith J. Sullivan - Officer

Open-market sale

Common Stock

40,976^{footnote F1}

$1.55^{footnote F2}

$64K

Footnote F1 (shares): The sales reported in this Form 4 were non-discretionary sales to satisfy the Reporting Person's tax withholding obligation upon vesting of a portion of a restricted stock unit award.
Footnote F2 (price): The price reported is a weighted average price. These shares were sold in multiple transactions at per share prices ranging from $1.45 to $1.60. The Reporting Person undertakes to provide upon request to the SEC staff, the Issuer, or any stockholder of the Issuer, full… Full note on SEC EDGAR

Dec 30, 2025

William Andrew Macan - Officer

Grant or award

Common Stock

164,361^{footnote F1}

$0.00^{footnote F2}

Footnote F1 (shares): Represents a restricted stock unit ("RSU") award that vests on the earlier of (i) June 30, 2027 and (ii) the termination of Mr. Macan's employment from the Issuer without cause.
Footnote F2 (price): Each RSU represents a contingent right to receive one share of the Issuer's common stock.

Dec 30, 2025

Steven Pfanstiel - Officer

Grant or award

Common Stock

170,212^{footnote F1}

$0.00^{footnote F2}

Footnote F1 (shares): Represents a restricted stock unit ("RSU") award that vests on the earlier of (i) June 30, 2027 and (ii) the termination of Mr. Pfanstiel's employment from the Issuer without cause.
Footnote F2 (price): Each RSU represents a contingent right to receive one share of the Issuer's common stock.

Oct 20, 2025

Sheryl L. Conley

Grant or award

Common Stock

7,326^{footnote F2}

$0.00^{footnote F3}

Footnote F2 (shares): Represents a restricted stock unit ("RSU") award that vested immediately upon the grant.
Footnote F3 (price): Each RSU represents a right to receive one share of the Issuer's common stock.

Oct 20, 2025

Sasha Cucuz

Grant or award

Common Stock

6,410^{footnote F2}

$0.00^{footnote F3}

Footnote F2 (shares): Represents a restricted stock unit ("RSU") award that vested immediately upon the grant.
Footnote F3 (price): Each RSU represents a right to receive one share of the Issuer's common stock.

Oct 20, 2025

Robert Cascella

Grant or award

Common Stock

10,531^{footnote F2}

$0.00^{footnote F3}

Footnote F2 (shares): Represents a restricted stock unit ("RSU") award that vested immediately upon the grant.
Footnote F3 (price): Each RSU represents a right to receive one share of the Issuer's common stock.

Oct 20, 2025

Glenn P. Muir

Grant or award

Common Stock

7,554^{footnote F2}

$0.00^{footnote F3}

Footnote F2 (shares): Represents a restricted stock unit ("RSU") award that vested immediately upon the grant.
Footnote F3 (price): Each RSU represents a right to receive one share of the Issuer's common stock.

Aug 8, 2025

Madryn Asset Management, LP

Open-market sale

Common Stock

192,806

$3.72

$717K

Aug 8, 2025

Madryn Asset Management, LP

Open-market sale

Common Stock

2,925,554

$3.72

$10.88M

Aug 8, 2025

Madryn Asset Management, LP

Open-market sale

Common Stock

381,640

$3.72

$1.42M

Jul 15, 2025

Steven Pfanstiel - Officer

Grant or award

Common Stock

200,000

$0.00

Jul 15, 2025

Steven Pfanstiel - Officer

Grant or award

Common Stock

200,000

$0.00

May 22, 2025

Megan Rosengarten

Grant or award

Common Stock

30,000

May 22, 2025

Sheryl L. Conley

Grant or award

Common Stock

30,000

May 22, 2025

Avinash Amin

Grant or award

Common Stock

30,000

May 22, 2025

Sasha Cucuz

Grant or award

Common Stock

30,000

May 22, 2025

Robert Cascella

Grant or award

Common Stock

36,250

May 22, 2025

Glenn P. Muir

Grant or award

Common Stock

30,000

May 12, 2025

Stephen Furlong - Officer

Open-market sale

Common Stock

193,460

$4.27

$826K

May 13, 2025

Stephen Furlong - Officer

Open-market sale

Common Stock

6,540

$4.16

$27K

Dec 10, 2024

Keith J. Sullivan - Officer

Grant or award

Performance Restricted Stock Unit

450,000

$0.00

Dec 10, 2024

William Andrew Macan - Officer

Grant or award

Performance Restricted Stock Unit

135,000

$0.00

Dec 10, 2024

Stephen Furlong - Officer

Grant or award

Performance Restricted Stock Unit

150,000

$0.00

Oct 8, 2024

Stephen Furlong - Officer

Open-market sale

Common Stock

1,368

$0.82

$1K

Oct 8, 2024

William Andrew Macan - Officer

Open-market sale

Common Stock

1,541

$0.82

$1K

Filed

Filer

Relationship

Market value

Notice

Aug 19, 2026

MACAN WILLIAM ANDREW

Former Officer

149,891

$464K

View on EDGAR

Aug 18, 2026

MACAN WILLIAM ANDREW

Officer

121,033