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Tollefson Karin Anna

Disclosed activity across 1 company

Tapewire entity
44283
SEC CIK
0001976551

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Verastem, Inc.VSTM · Entity 5242DirectorMay 21, 2026May 26, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Verastem, Inc.

Report date May 21, 2026 · Filed May 26, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect52,666 Reported balance After 2026-05-21 transaction · row 1
1 source row

Row 1 · 2026-05-21 · Grant · Acquired 36,000 · Balance 52,666

F1: RSUs granted to the Reporting Person under the Issuer's Amended and Restated 2021 Equity Incentive Plan. Each RSU represents the contingent right to receive one share of Common Stock. The RSUs vest in twelve substantially equal installments (rounded down to the nearest whole share on each vesting date except with respect to the final vesting date on which the remaining unvested portion shall vest). The first eleven installments shall vest beginning on the last day of each month over a period from June, 2026 to April, 2027 and the last installment shall vest on the earlier of (i) the day before the 2027 Annual Meeting of Stockholders is held or (ii) May 31, 2027, provided that the Reporting Person continues to serve as a director of the Issuer on each such vesting date.

Filing footnotes · ownership attribution and instrument terms

F1: RSUs granted to the Reporting Person under the Issuer's Amended and Restated 2021 Equity Incentive Plan. Each RSU represents the contingent right to receive one share of Common Stock. The RSUs vest in twelve substantially equal installments (rounded down to the nearest whole share on each vesting date except with respect to the final vesting date on which the remaining unvested portion shall vest). The first eleven installments shall vest beginning on the last day of each month over a period from June, 2026 to April, 2027 and the last installment shall vest on the earlier of (i) the day before the 2027 Annual Meeting of Stockholders is held or (ii) May 31, 2027, provided that the Reporting Person continues to serve as a director of the Issuer on each such vesting date.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
May 21, 2026 Filed May 26, 2026 22:23 UTC Verastem, Inc. VSTM · Entity 5242 GrantCommon Stock 36,000 $0.00 $0.00
Disclosure

SEC source: 0001104659-26-066428 · tm2615478-3_4seq1.xml · nonDerivative · entry 1

Tollefson Karin Anna · CIK 0001976551 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,666

F1 · shares: RSUs granted to the Reporting Person under the Issuer's Amended and Restated 2021 Equity Incentive Plan. Each RSU represents the contingent right to receive one share of Common Stock. The RSUs vest in twelve substantially equal installments (rounded down to the nearest whole share on each vesting date except with respect to the final vesting date on which the remaining unvested portion shall vest). The first eleven installments shall vest beginning on the last day of each month over a period from June, 2026 to April, 2027 and the last installment shall vest on the earlier of (i) the day before the 2027 Annual Meeting of Stockholders is held or (ii) May 31, 2027, provided that the Reporting Person continues to serve as a director of the Issuer on each such vesting date.

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May 22, 2025 Filed May 27, 2025 21:43 UTC Verastem, Inc. VSTM · Entity 5242 GrantStock Option (right to buy) · Derivative 12,500 $0.00 Strike: $7.48 $0.00
Disclosure

SEC source: 0001104659-25-053095 · tm2516118-3_4seq1.xml · derivative · entry 2

Tollefson Karin Anna · CIK 0001976551 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,500

Underlying: Common Stock · 12,500 shares

Expires 2035-05-22

F2 · derivative.exercise_date: The stock option vests in twelve equal installments (rounded down to the nearest whole share on each vesting date except with respect to the final vesting date on which the remaining unvested portion shall vest). The first eleven installments shall vest beginning on the last day of each month over a period from June, 2025 to April, 2026 and the last installment shall vest on the earlier of (i) the day before the 2026 Annual Meeting of Stockholders is held or (ii) May 31, 2026, provided that the Reporting Person continues to serve as a director of the Issuer on each such vesting date.

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May 22, 2025 Filed May 27, 2025 21:43 UTC Verastem, Inc. VSTM · Entity 5242 GrantCommon Stock 8,333 $0.00 $0.00
Disclosure

SEC source: 0001104659-25-053095 · tm2516118-3_4seq1.xml · nonDerivative · entry 1

Tollefson Karin Anna · CIK 0001976551 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,666

F1 · shares: RSUs granted to the Reporting Person under the Issuer's Amended and Restated 2021 Equity Incentive Plan. Each RSU represents the contingent right to receive one share of Common Stock. The RSUs vest in twelve equal installments (rounded down to the nearest whole share on each vesting date except with respect to the final vesting date on which the remaining unvested portion shall vest). The first eleven installments shall vest beginning on the last day of each month over a period from June, 2025 to April, 2026 and the last installment shall vest on the earlier of (i) the day before the 2026 Annual Meeting of Stockholders is held or (ii) May 31, 2026, provided that the Reporting Person continues to serve as a director of the Issuer on each such vesting date.

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June 18, 2024 Filed Jun 21, 2024 00:29 UTC Verastem, Inc. VSTM · Entity 5242 GrantStock Option (right to buy) · Derivative 12,500 $0.00 Strike: $3.27 $0.00
Disclosure

SEC source: 0001104659-24-073603 · tm2417704-8_4seq1.xml · derivative · entry 2

Tollefson Karin Anna · CIK 0001976551 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,500

Underlying: Common Stock · 12,500 shares

Expires 2034-06-18

F2 · derivative.exercise_date: The stock option vests in twelve equal installments (rounded down to the nearest whole share on each vesting date except with respect to the final vesting date on which the remaining unvested portion shall vest). The first eleven installments shall vest beginning on the last day of each month over a period from June, 2024 to April, 2025 and the last installment shall vest on the earlier of (i) the day before the 2025 Annual Meeting of Stockholders is held or (ii) May 31, 2025, provided that the Reporting Person continues to serve as a director of the Issuer on each such vesting date.

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June 18, 2024 Filed Jun 21, 2024 00:29 UTC Verastem, Inc. VSTM · Entity 5242 GrantCommon Stock 8,333 $0.00 $0.00
Disclosure

SEC source: 0001104659-24-073603 · tm2417704-8_4seq1.xml · nonDerivative · entry 1

Tollefson Karin Anna · CIK 0001976551 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,333

F1 · shares: Restricted stock units ("RSUs") granted to the Reporting Person under the Issuer's Amended and Restated 2021 Equity Incentive Plan. Each RSU represents the contingent right to receive one share of Common Stock. The RSUs vest in twelve equal installments (rounded down to the nearest whole share on each vesting date except with respect to the final vesting date on which the remaining unvested portion shall vest). The first eleven installments shall vest beginning on the last day of each month over a period from June, 2024 to April, 2025 and the last installment shall vest on the earlier of (i) the day before the 2025 Annual Meeting of Stockholders is held or (ii) May 31, 2025, provided that the Reporting Person continues to serve as a director of the Issuer on each such vesting date.

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May 15, 2023 Filed May 16, 2023 20:31 UTC Verastem, Inc. VSTM · Entity 5242 GrantStock Option (right to buy) · Derivative 187,500 $0.00 Strike: $0.42 $0.00
Disclosure

SEC source: 0001104659-23-061414 · tm2315836-2_4seq1.xml · derivative · entry 1

Tollefson Karin Anna · CIK 0001976551 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 187,500

Underlying: Common Stock · 187,500 shares

Expires 2033-05-15

F1 · derivative.exercise_date: 125,000 of the stock options vest in twelve equal quarterly installments beginning each three successive month period following May 15, 2023 (the "Option Grant Date") until the third anniversary of the Option Grant Date (with the number of shares vesting on each vesting date rounded down to the nearest whole share, except with respect to the final vesting date on which all remaining unvested shares shall vest).

F2 · derivative.exercise_date: 62,500 of the stock options vests in twelve equal installments (rounded down to the nearest whole share on each vesting date except with respect to the final vesting date on which the remaining unvested portion shall vest). The first eleven installments shall vest beginning on the last day of each month over a period from June, 2023 to April, 2024 and the last installment shall vest on the earlier of (i) the day before the 2024 Annual Meeting of Stockholders is held or (ii) May 31, 2024, provided that the Reporting Person continues to serve as a director of the Company on each such vesting date.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.