Bolt Biotherapeutics, Inc. ( BOLT )

Aug 11, 2026Item 2.02, 9.01

Jun 11, 2026Item 5.07

May 12, 2026Item 2.02, 9.01

BOLT insider trading FAQ

What is the latest insider trade for BOLT?

Bolt Biotherapeutics, Inc. (BOLT) had 3 insider filings in the last 90 days, with the most recent on 2026-09-21. The full record for BOLT runs to 27 Form 4 filings, the earliest from 2025-05-27. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.

How many insiders are buying BOLT stock?

2 insider purchases of BOLT were filed in the last 90 days, totaling $4K.

How many insiders are selling BOLT stock?

9 insider sales of BOLT were filed in the last 90 days, totaling $128K.

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

This page collects BOLT 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.

Sep 21, 2026 - Grant Yonehiro view on EDGAR
Sep 21, 2026 - Sarah Nemec view on EDGAR
Sep 21, 2026 - William P. Quinn view on EDGAR
Jun 11, 2026 - Laura Berner view on EDGAR
Jun 11, 2026 - Kathleen Laporte view on EDGAR
Jun 11, 2026 - Jakob Dupont view on EDGAR
Jun 11, 2026 - Brian O'Callaghan view on EDGAR
Jun 11, 2026 - Nicole Onetto view on EDGAR
Feb 4, 2026 - William P. Quinn view on EDGAR

Related companies with recent insider activity

Learn more

Insider selling: signal or noise?: Why most insider sales are routine, and the few patterns worth a second look.
Insider activity in Health Care: Where BOLT'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

1,146

$4K

Open-market sale

38,584

$128K

Date

Insider

Transaction

Security

Price

Value

Sep 16, 2026

Grant Yonehiro - Officer

Open-market sale

Common Stock

1,417

$3.77^{footnote F1}

$5K

Sep 17, 2026

Grant Yonehiro - Officer

Open-market sale

Common Stock

4,909

$3.32^{footnote F2}

$16K

Sep 18, 2026

Grant Yonehiro - Officer

Open-market sale

Common Stock

6,850

$3.24^{footnote F3}

$22K

Footnote F1 (price): Represents weighted average sales price. These shares were sold by the reporting person to cover tax withholding obligations in connection with the vesting of the restricted stock units granted on October 22, 2025. The shares were sold at prices ranging from $3.60 to $4.14. The… Full note on SEC EDGAR
Footnote F2 (price): Represents weighted average sales price. These shares were sold by the reporting person to cover tax withholding obligations in connection with the vesting of the restricted stock units granted on October 22, 2025. The shares were sold at prices ranging from $3.22 to $3.67. The… Full note on SEC EDGAR
Footnote F3 (price): Represents weighted average sales price. These shares were sold by the reporting person to cover tax withholding obligations in connection with the vesting of the restricted stock units granted on October 22, 2025. The shares were sold at prices ranging from $3.15 to $3.41. The… Full note on SEC EDGAR

Jun 5, 2026

Sarah Nemec - Officer

Open-market purchase

Common Stock

509

$3.88

$2K

Sep 16, 2026

Sarah Nemec - Officer

Open-market sale

Common Stock

843

$3.77^{footnote F2}

$3K

Sep 17, 2026

Sarah Nemec - Officer

Open-market sale

Common Stock

2,922

$3.32^{footnote F3}

$10K

Sep 18, 2026

Sarah Nemec - Officer

Open-market sale

Common Stock

4,077

$3.24^{footnote F4}

$13K

Footnote F2 (price): Represents weighted average sales price. These shares were sold by the reporting person to cover tax withholding obligations in connection with the vesting of the restricted stock units granted on October 22, 2025. The shares were sold at prices ranging from $3.60 to $4.14. The… Full note on SEC EDGAR
Footnote F3 (price): Represents weighted average sales price. These shares were sold by the reporting person to cover tax withholding obligations in connection with the vesting of the restricted stock units granted on October 22, 2025. The shares were sold at prices ranging from $3.22 to $3.67. The… Full note on SEC EDGAR
Footnote F4 (price): Represents weighted average sales price. These shares were sold by the reporting person to cover tax withholding obligations in connection with the vesting of the restricted stock units granted on October 22, 2025. The shares were sold at prices ranging from $3.15 to $3.41. The… Full note on SEC EDGAR

Jun 5, 2026

William P. Quinn - Officer

Open-market purchase

Common Stock

637

$3.88

$2K

Sep 16, 2026

William P. Quinn - Officer

Open-market sale

Common Stock

1,889

$3.77^{footnote F2}

$7K

Sep 17, 2026

William P. Quinn - Officer

Open-market sale

Common Stock

6,545

$3.32^{footnote F3}

$22K

Sep 18, 2026

William P. Quinn - Officer

Open-market sale

Common Stock

9,132

$3.24^{footnote F4}

$30K

Footnote F2 (price): Represents weighted average sales price. These shares were sold by the reporting person to cover tax withholding obligations in connection with the vesting of the restricted stock units granted on October 22, 2025. The shares were sold at prices ranging from $3.60 to $4.14. The… Full note on SEC EDGAR
Footnote F3 (price): Represents weighted average sales price. These shares were sold by the reporting person to cover tax withholding obligations in connection with the vesting of the restricted stock units granted on October 22, 2025. The shares were sold at prices ranging from $3.22 to $3.67. The… Full note on SEC EDGAR
Footnote F4 (price): Represents weighted average sales price. These shares were sold by the reporting person to cover tax withholding obligations in connection with the vesting of the restricted stock units granted on October 22, 2025. The shares were sold at prices ranging from $3.15 to $3.41. The… Full note on SEC EDGAR

Jun 10, 2026

Grant or award

Stock Option (Right to Buy)

5,000

$0.00

Jun 10, 2026

Grant or award

Stock Option (Right to Buy)

5,000

$0.00

Jun 10, 2026

Grant or award

Stock Option (Right to Buy)

5,000

$0.00

Jun 10, 2026

Grant or award

Stock Option (Right to Buy)

5,000

$0.00

Jun 10, 2026

Grant or award

Stock Option (Right to Buy)

5,000

$0.00

Dec 5, 2025

William P. Quinn - Officer

Open-market purchase

Common Stock

125

$4.61

$576

Jan 28, 2026

William P. Quinn - Officer

Grant or award

Employee Stock Option (Right to Buy)

20,000

$0.00

Jan 28, 2026

Grant Yonehiro - Officer

Grant or award

Employee Stock Option (Right to Buy)

10,000

$0.00

Dec 5, 2025

Sarah Nemec - Officer

Open-market purchase

Common Stock

125

$4.61

$576

Jan 28, 2026

Sarah Nemec - Officer

Grant or award

Employee Stock Option (Right to Buy)

8,000

$0.00

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

2,500

-^{footnote F2}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

2,500

-^{footnote F2}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

613

-^{footnote F2}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

613

-^{footnote F2}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,250

-^{footnote F4}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,250

-^{footnote F4}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,100

-^{footnote F5}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,100

-^{footnote F7}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,100

-^{footnote F5}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,100

-^{footnote F7}

Footnote F2 (price): The reporting person agreed to cancellation of an option granted on December 14, 2022, in exchange for a new option having a lower exercise price.
Footnote F4 (price): The reporting person agreed to cancellation of an option granted on June 12, 2023, in exchange for a new option having a lower exercise price.
Footnote F5 (price): The reporting person agreed to cancellation of an option granted on June 12, 2024, in exchange for a new option having a lower exercise price.
Footnote F7 (price): The reporting person agreed to cancellation of an option granted on May 27, 2025, in exchange for a new option having a lower exercise price.

Dec 12, 2025

Sarah Nemec - Officer

Grant or award

Employee Stock Option (Right to Buy)

1,236

-^{footnote F2}

Dec 12, 2025

Sarah Nemec - Officer

Derivative

Employee Stock Option (Right to Buy)

1,236

-^{footnote F2}

Dec 12, 2025

Sarah Nemec - Officer

Grant or award

Employee Stock Option (Right to Buy)

375

-^{footnote F3}

Dec 12, 2025

Sarah Nemec - Officer

Derivative

Employee Stock Option (Right to Buy)

375

-^{footnote F3}

Dec 12, 2025

Sarah Nemec - Officer

Grant or award

Employee Stock Option (Right to Buy)

600

-^{footnote F4}

Dec 12, 2025

Sarah Nemec - Officer

Derivative

Employee Stock Option (Right to Buy)

600

-^{footnote F4}

Dec 12, 2025

Sarah Nemec - Officer

Grant or award

Employee Stock Option (Right to Buy)

2,199

-^{footnote F5}

Dec 12, 2025

Sarah Nemec - Officer

Derivative

Employee Stock Option (Right to Buy)

2,199

-^{footnote F5}

Dec 12, 2025

Sarah Nemec - Officer

Grant or award

Employee Stock Option (Right to Buy)

6,699

-^{footnote F7}

Dec 12, 2025

Sarah Nemec - Officer

Derivative

Employee Stock Option (Right to Buy)

6,699

-^{footnote F7}

Dec 12, 2025

Sarah Nemec - Officer

Grant or award

Employee Stock Option (Right to Buy)

1,589

-^{footnote F9}

Dec 12, 2025

Sarah Nemec - Officer

Derivative

Employee Stock Option (Right to Buy)

1,589

-^{footnote F9}

Dec 12, 2025

Sarah Nemec - Officer

Grant or award

Employee Stock Option (Right to Buy)

2,499

-^{footnote F11}

Dec 12, 2025

Sarah Nemec - Officer

Derivative

Employee Stock Option (Right to Buy)

2,499

-^{footnote F11}

Dec 12, 2025

Sarah Nemec - Officer

Grant or award

Employee Stock Option (Right to Buy)

4,499

-^{footnote F11}

Dec 12, 2025

Sarah Nemec - Officer

Derivative

Employee Stock Option (Right to Buy)

4,499

-^{footnote F11}

Dec 12, 2025

Sarah Nemec - Officer

Grant or award

Employee Stock Option (Right to Buy)

11,299

-^{footnote F13}

Dec 12, 2025

Sarah Nemec - Officer

Derivative

Employee Stock Option (Right to Buy)

11,299

-^{footnote F13}

Footnote F2 (price): The reporting person agreed to cancellation of an option granted on September 3, 2020, in exchange for a new option having a lower exercise price.
Footnote F3 (price): The reporting person agreed to cancellation of an option granted on February 4, 2021, in exchange for a new option having a lower exercise price.
Footnote F4 (price): The reporting person agreed to cancellation of an option granted on December 22, 2021, in exchange for a new option having a lower exercise price.
Footnote F5 (price): The reporting person agreed to cancellation of an option granted on February 18, 2022, in exchange for a new option having a lower exercise price.
Footnote F7 (price): The reporting person agreed to cancellation of an option granted on January 19, 2023, in exchange for a new option having a lower exercise price.
Footnote F9 (price): The reporting person agreed to cancellation of an option granted on March 4, 2024, in exchange for a new option having a lower exercise price.
Footnote F11 (price): The reporting person agreed to cancellation of an option granted on July 23, 2024, in exchange for a new option having a lower exercise price.
Footnote F13 (price): The reporting person agreed to cancellation of an option granted on May 1, 2025, in exchange for a new option having a lower exercise price.

Dec 12, 2025

William P. Quinn - Officer

Grant or award

Employee Stock Option (Right to Buy)

7,614

-^{footnote F2}

Dec 12, 2025

William P. Quinn - Officer

Derivative

Employee Stock Option (Right to Buy)

7,614

-^{footnote F2}

Dec 12, 2025

William P. Quinn - Officer

Grant or award

Employee Stock Option (Right to Buy)

3,927

-^{footnote F3}

Dec 12, 2025

William P. Quinn - Officer

Derivative

Employee Stock Option (Right to Buy)

3,927

-^{footnote F3}

Dec 12, 2025

William P. Quinn - Officer

Grant or award

Employee Stock Option (Right to Buy)

5,000

-^{footnote F4}

Dec 12, 2025

William P. Quinn - Officer

Derivative

Employee Stock Option (Right to Buy)

5,000

-^{footnote F4}

Dec 12, 2025

William P. Quinn - Officer

Grant or award

Employee Stock Option (Right to Buy)

10,499

-^{footnote F5}

Dec 12, 2025

William P. Quinn - Officer

Derivative

Employee Stock Option (Right to Buy)

10,499

-^{footnote F5}

Dec 12, 2025

William P. Quinn - Officer

Grant or award

Employee Stock Option (Right to Buy)

12,499

-^{footnote F7}

Dec 12, 2025

William P. Quinn - Officer

Derivative

Employee Stock Option (Right to Buy)

12,499

-^{footnote F7}

Dec 12, 2025

William P. Quinn - Officer

Grant or award

Employee Stock Option (Right to Buy)

11,749

-^{footnote F9}

Dec 12, 2025

William P. Quinn - Officer

Derivative

Employee Stock Option (Right to Buy)

11,749

-^{footnote F9}

Dec 12, 2025

William P. Quinn - Officer

Grant or award

Employee Stock Option (Right to Buy)

21,999

-^{footnote F11}

Dec 12, 2025

William P. Quinn - Officer

Derivative

Employee Stock Option (Right to Buy)

21,999

-^{footnote F11}

Dec 12, 2025

William P. Quinn - Officer

Grant or award

Employee Stock Option (Right to Buy)

34,999

-^{footnote F13}

Dec 12, 2025

William P. Quinn - Officer

Derivative

Employee Stock Option (Right to Buy)

34,999

-^{footnote F13}

Footnote F2 (price): The reporting person agreed to cancellation of an option granted on July 29, 2020, in exchange for a new option having a lower price.
Footnote F3 (price): The reporting person agreed to cancellation of an option granted on September 3, 2020, in exchange for a new option having a lower exercise price.
Footnote F4 (price): The reporting person agreed to cancellation of an option granted on February 4, 2021, in exchange for a new option having a lower exercise price.
Footnote F5 (price): The reporting person agreed to cancellation of an option granted on February 18, 2022, in exchange for a new option having a lower exercise price.
Footnote F7 (price): The reporting person agreed to cancellation of an option granted on February 27, 2023, in exchange for a new option having a lower exercise price.
Footnote F9 (price): The reporting person agreed to cancellation of an option granted on March 4, 2024, in exchange for a new option having a lower exercise price.
Footnote F11 (price): The reporting person agreed to cancellation of an option granted on July 23, 2024, in exchange for a new option having a lower exercise price.
Footnote F13 (price): The reporting person agreed to cancellation of an option granted on May 1, 2025, in exchange for a new option having a lower exercise price.

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

2,500

-^{footnote F2}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

2,500

-^{footnote F2}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

849

-^{footnote F4}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

849

-^{footnote F4}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,000

-^{footnote F5}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,000

-^{footnote F5}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,100

-^{footnote F7}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,100

-^{footnote F7}

Footnote F2 (price): The reporting person agreed to cancellation of an option granted on September 3, 2024, in exchange for a new option having a lower exercise price.
Footnote F4 (price): The reporting person agreed to cancellation of an option granted on September 3, 2024, in exchange for a new option having a lower exercise price.
Footnote F5 (price): The reporting person agreed to cancellation of an option granted on May 1, 2025, in exchange for a new option having a lower exercise price.
Footnote F7 (price): The reporting person agreed to cancellation of an option granted on May 27, 2025, in exchange for a new option having a lower exercise price.

Dec 12, 2025

Grant Yonehiro - Officer

Grant or award

Employee Stock Option (Right to Buy)

3,214

-^{footnote F2}

Dec 12, 2025

Grant Yonehiro - Officer

Derivative

Employee Stock Option (Right to Buy)

3,214

-^{footnote F2}

Dec 12, 2025

Grant Yonehiro - Officer

Grant or award

Employee Stock Option (Right to Buy)

660

-^{footnote F3}

Dec 12, 2025

Grant Yonehiro - Officer

Derivative

Employee Stock Option (Right to Buy)

660

-^{footnote F3}

Dec 12, 2025

Grant Yonehiro - Officer

Grant or award

Employee Stock Option (Right to Buy)

822

-^{footnote F4}

Dec 12, 2025

Grant Yonehiro - Officer

Derivative

Employee Stock Option (Right to Buy)

822

-^{footnote F4}

Dec 12, 2025

Grant Yonehiro - Officer

Grant or award

Employee Stock Option (Right to Buy)

1,653

-^{footnote F5}

Dec 12, 2025

Grant Yonehiro - Officer

Derivative

Employee Stock Option (Right to Buy)

1,653

-^{footnote F5}

Dec 12, 2025

Grant Yonehiro - Officer

Grant or award

Employee Stock Option (Right to Buy)

4,642

-^{footnote F6}

Dec 12, 2025

Grant Yonehiro - Officer

Derivative

Employee Stock Option (Right to Buy)

4,642

-^{footnote F6}

Dec 12, 2025

Grant Yonehiro - Officer

Grant or award

Employee Stock Option (Right to Buy)

2,142

-^{footnote F7}

Dec 12, 2025

Grant Yonehiro - Officer

Derivative

Employee Stock Option (Right to Buy)

2,142

-^{footnote F7}

Dec 12, 2025

Grant Yonehiro - Officer

Grant or award

Employee Stock Option (Right to Buy)

4,999

-^{footnote F8}

Dec 12, 2025

Grant Yonehiro - Officer

Derivative

Employee Stock Option (Right to Buy)

4,999

-^{footnote F8}

Dec 12, 2025

Grant Yonehiro - Officer

Grant or award

Employee Stock Option (Right to Buy)

9,499

-^{footnote F9}

Dec 12, 2025

Grant Yonehiro - Officer

Derivative

Employee Stock Option (Right to Buy)

9,499

-^{footnote F9}

Dec 12, 2025

Grant Yonehiro - Officer

Grant or award

Employee Stock Option (Right to Buy)

11,399

-^{footnote F11}

Dec 12, 2025

Grant Yonehiro - Officer

Derivative

Employee Stock Option (Right to Buy)

11,399

-^{footnote F11}

Dec 12, 2025

Grant Yonehiro - Officer

Grant or award

Employee Stock Option (Right to Buy)

11,749

-^{footnote F13}

Dec 12, 2025

Grant Yonehiro - Officer

Derivative

Employee Stock Option (Right to Buy)

11,749

-^{footnote F13}

Dec 12, 2025

Grant Yonehiro - Officer

Grant or award

Employee Stock Option (Right to Buy)

7,749

-^{footnote F15}

Dec 12, 2025

Grant Yonehiro - Officer

Derivative

Employee Stock Option (Right to Buy)

7,749

-^{footnote F15}

Dec 12, 2025

Grant Yonehiro - Officer

Grant or award

Employee Stock Option (Right to Buy)

17,499

-^{footnote F17}

Dec 12, 2025

Grant Yonehiro - Officer

Derivative

Employee Stock Option (Right to Buy)

17,499

-^{footnote F17}

Footnote F2 (price): The reporting person agreed to cancellation of an option granted on January 18, 2017, in exchange for a new option having a lower price.
Footnote F3 (price): The reporting person agree to cancellation of an option granted on January 17, 2018, in exchange for a new option having a lower exercise price.
Footnote F4 (price): The reporting person agreed to cancellation of an option granted on April 4, 2018, in exchange for a new option having a lower exercise price.
Footnote F5 (price): The reporting person agreed to cancellation of an option granted on January 11, 2019, in exchange for a new option having a lower exercise price.
Footnote F6 (price): The reporting person agreed to cancellation of an option granted on November 13, 2019, in exchange for a new option having a lower exercise price.
Footnote F7 (price): The reporting person agreed to cancellation of an option granted on September 3, 2020, in exchange for a new option having a lower exercise price.
Footnote F8 (price): The reporting person agreed to cancellation of an option granted on February 4, 2021, in exchange for a new option having a lower exercise price.
Footnote F9 (price): The reporting person agreed to cancellation of an option granted on February 18, 2022, in exchange for a new option having a lower exercise price.
Footnote F11 (price): The reporting person agreed to cancellation of an option granted on February 27, 2023, in exchange for a new option having a lower exercise price.
Footnote F13 (price): The reporting person agreed to cancellation of an option granted on March 4, 2024, in exchange for a new option having a lower exercise price.
Footnote F15 (price): The reporting person agreed to cancellation of an option granted on July 23, 2024, in exchange for a new option having a lower exercise price.
Footnote F17 (price): The reporting person agreed to cancellation of an option granted on May 1, 2025, in exchange for a new option having a lower exercise price.

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,393

-^{footnote F2}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,393

-^{footnote F2}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,810

-^{footnote F3}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,810

-^{footnote F3}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,250

-^{footnote F4}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,250

-^{footnote F5}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,250

-^{footnote F4}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,250

-^{footnote F5}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,100

-^{footnote F6}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,100

-^{footnote F8}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,100

-^{footnote F6}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,100

-^{footnote F8}

Footnote F2 (price): The reporting person agreed to cancellation of an option granted on November 17, 2021, in exchange for a new option having a lower exercise price.
Footnote F3 (price): The reporting person agreed to cancellation of an option granted on March 24, 2022, in exchange for a new option having a lower exercise price.
Footnote F4 (price): The reporting person agreed to cancellation of an option granted on June 10, 2022, in exchange for a new option having a lower exercise price.
Footnote F5 (price): The reporting person agreed to cancellation of an option granted on June 12, 2023, in exchange for a new option having a lower exercise price.
Footnote F6 (price): The reporting person agreed to cancellation of an option granted on June 12, 2024, in exchange for a new option having a lower exercise price.
Footnote F8 (price): The reporting person agreed to cancellation of an option granted on May 27, 2025, in exchange for a new option having a lower exercise price.

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,393

-^{footnote F2}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,393

-^{footnote F2}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,107

-^{footnote F3}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,107

-^{footnote F3}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

611

-^{footnote F3}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

611

-^{footnote F3}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,250

-^{footnote F4}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,250

-^{footnote F5}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,250

-^{footnote F4}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,250

-^{footnote F5}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,100

-^{footnote F6}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,100

-^{footnote F6}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,100

-^{footnote F8}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,100

-^{footnote F8}

Footnote F2 (price): The reporting person agreed to cancellation of an option granted on December 14, 2021, in exchange for a new option having a lower exercise price.
Footnote F3 (price): The reporting person agreed to cancellation of an option granted on March 24, 2022, in exchange for a new option having a lower exercise price.
Footnote F4 (price): The reporting person agreed to cancellation of an option granted on June 10, 2022, in exchange for a new option having a lower exercise price.
Footnote F5 (price): The reporting person agreed to cancellation of an option granted on June 12, 2023, in exchange for a new option having a lower exercise price.
Footnote F6 (price): The reporting person agreed to cancellation of an option granted on June 12, 2024, in exchange for a new option having a lower exercise price.
Footnote F8 (price): The reporting person agreed to cancellation of an option granted on May 27, 2025, in exchange for a new option having a lower exercise price.

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,392

-^{footnote F2}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,392

-^{footnote F2}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,250

-^{footnote F3}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,250

-^{footnote F4}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,250

-^{footnote F5}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,250

-^{footnote F6}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,250

-^{footnote F3}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,250

-^{footnote F4}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,250

-^{footnote F5}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,250

-^{footnote F6}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,100

-^{footnote F7}

Dec 12, 2025

Grant or award

Director Stock Option (Right to Buy)

1,100

-^{footnote F9}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,100

-^{footnote F7}

Dec 12, 2025

Derivative

Director Stock Option (Right to Buy)

1,100

-^{footnote F9}

Footnote F2 (price): The reporting person agreed to cancellation of an option granted on December 29, 2020, in exchange for a new option having a lower exercise price.
Footnote F3 (price): The reporting person agreed to cancellation of an option granted on March 24, 2022, in exchange for a new option having a lower exercise price.
Footnote F4 (price): The reporting person agreed to cancellation of an option granted on June 10, 2022, in exchange for a new option having a lower exercise price.
Footnote F5 (price): The reporting person agreed to cancellation of an option granted on December 14, 2022, in exchange for a new option having a lower exercise price.
Footnote F6 (price): The reporting person agreed to cancellation of an option granted on June 12, 2023, in exchange for a new option having a lower exercise price.
Footnote F7 (price): The reporting person agreed to cancellation of an option granted on June 12, 2024, in exchange for a new option having a lower exercise price.
Footnote F9 (price): The reporting person agreed to cancellation of an option granted on May 27, 2025, in exchange for a new option having a lower exercise price.

Jun 6, 2025

Sarah Nemec - Officer

Open-market purchase

Common Stock

125^{footnote F1}

$5.49

$687

Oct 22, 2025

Sarah Nemec - Officer

Grant or award

Common Stock

23,000

$0.00^{footnote F2}

Footnote F1 (shares): Shares acquired under the issuer's Employee Stock Purchase Plan and therefore exempt under Rule 16b-3(c)
Footnote F2 (price): The shares represent restricted stock units that were received as an award, for no consideration. Each restricted stock unit represents the right to receive, at settlement, one share of common stock.

Jun 6, 2025

William P. Quinn - Officer

Open-market purchase

Common Stock

125^{footnote F1}

$5.49

$687

Oct 22, 2025

William P. Quinn - Officer

Grant or award

Common Stock

40,000

$0.00^{footnote F2}

Footnote F1 (shares): Shares acquired under the issuer's Employee Stock Purchase Plan and therefore exempt under Rule 16b-3(c)
Footnote F2 (price): The shares represent restricted stock units that were received as an award, for no consideration. Each restricted stock unit represents the right to receive, at settlement, one share of common stock.

Oct 22, 2025

Grant Yonehiro - Officer

Grant or award

Common Stock

30,000

$0.00^{footnote F1}

Footnote F1 (price): The shares represent restricted stock units that were received as an award, for no consideration. Each restricted stock unit represents the right to receive, at settlement, one share of common stock.

May 27, 2025

Grant or award

Stock Option (Right to Buy)

1,100

$0.00

May 27, 2025

Grant or award

Stock Option (Right to Buy)

1,100

$0.00

May 27, 2025

Grant or award

Stock Option (Right to Buy)

1,100

$0.00

May 27, 2025

Grant or award

Stock Option (Right to Buy)

1,100

$0.00

May 27, 2025