Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| Prime Medicine, Inc.PRME · Entity 5281 | Director | June 05, 2026 | June 08, 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.
Prime Medicine, Inc.
Report date June 05, 2026 · Filed June 08, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $3.06 · Expires 2036-06-05 | Direct | 75,000 |
Reported balance
After 2026-06-05 transaction · row 1
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 1 · 2026-06-05 · Grant · Acquired 75,000 · Balance 75,000 F1: The shares subject to this option shall vest in full upon the earlier of (i) June 5, 2027 or (ii) the date of the next annual meeting of stockholders, subject to the Reporting Person's continuous service to the Issuer through such vesting date. |
Filing footnotes · ownership attribution and instrument terms
F1: The shares subject to this option shall vest in full upon the earlier of (i) June 5, 2027 or (ii) the date of the next annual meeting of stockholders, subject to the Reporting Person's continuous service to the Issuer through such vesting date.
Transaction history
JSON APIPurchases/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 date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| June 05, 2026 Filed Jun 8, 2026 20:13 UTC | Prime Medicine, Inc. PRME · Entity 5281 | GrantStock Option (right to buy) · Derivative | 75,000 | $0.00 Strike: $3.06 | $0.00 |
DisclosureSEC source: 0001628280-26-041553 · wk-form4_1780949591.xml · derivative · entry 1 Cahill Thomas · CIK 0001922939 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 75,000 Underlying: Common Stock · 75,000 shares Expires 2036-06-05 F1 · derivative.exercise_date: The shares subject to this option shall vest in full upon the earlier of (i) June 5, 2027 or (ii) the date of the next annual meeting of stockholders, subject to the Reporting Person's continuous service to the Issuer through such vesting date. Read SEC document |
| August 01, 2025 Filed Aug 6, 2025 00:42 UTC | Prime Medicine, Inc. PRME · Entity 5281 | GrantStock Option (right to buy) · Derivative | 45,000 | Not disclosed Strike: $4.04 | Not disclosed |
DisclosureSEC source: 0001894562-25-000044 · wk-form4_1754440963.xml · derivative · entry 4 Cahill Thomas · CIK 0001922939 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 45,000 Underlying: Common Stock · 45,000 shares Expires 2034-06-12 F1 · kind: Effective as of August 1, 2025 (the "Repricing Date"), the Issuer's stockholders approved a one-time repricing of certain outstanding stock options (the "Repriced Options") granted under the Issuer's 2019 Stock Option and Grant Plan, as amended (the "2019 Plan") and/or the 2022 Stock Option and Incentive Plan (the "2022 Plan" and, together with the 2019 Plan, the "Plans"), which reduced the per share exercise price of each Repriced Option to $4.04, representing the closing price of the Issuer's common stock on The Nasdaq Global Market on the Repricing Date (the "Option Repricing"). Except as modified by the Option Repricing, all other terms and conditions of the Repriced Options, including, without limitation, any provisions with respect to vesting and term of the Repriced Options, remain in full force and effect. F1 · price: Effective as of August 1, 2025 (the "Repricing Date"), the Issuer's stockholders approved a one-time repricing of certain outstanding stock options (the "Repriced Options") granted under the Issuer's 2019 Stock Option and Grant Plan, as amended (the "2019 Plan") and/or the 2022 Stock Option and Incentive Plan (the "2022 Plan" and, together with the 2019 Plan, the "Plans"), which reduced the per share exercise price of each Repriced Option to $4.04, representing the closing price of the Issuer's common stock on The Nasdaq Global Market on the Repricing Date (the "Option Repricing"). Except as modified by the Option Repricing, all other terms and conditions of the Repriced Options, including, without limitation, any provisions with respect to vesting and term of the Repriced Options, remain in full force and effect. F2 · derivative.exercise_date: This stock option award was issued pursuant to the 2019 Plan and/or the 2022 Plan, as applicable, and becomes exercisable in accordance with the vesting schedule specified in the award agreement and as previously reported on applicable Form 4, subject to the Reporting Person's continued service with the Issuer as of the applicable vesting date. Read SEC document |
| August 01, 2025 Filed Aug 6, 2025 00:42 UTC | Prime Medicine, Inc. PRME · Entity 5281 | Disposition to issuerStock Option (right to buy) · Derivative | 45,000 | Not disclosed Strike: $7.68 | Not disclosed |
DisclosureSEC source: 0001894562-25-000044 · wk-form4_1754440963.xml · derivative · entry 3 Cahill Thomas · CIK 0001922939 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 45,000 shares Expires 2034-06-12 F1 · kind: Effective as of August 1, 2025 (the "Repricing Date"), the Issuer's stockholders approved a one-time repricing of certain outstanding stock options (the "Repriced Options") granted under the Issuer's 2019 Stock Option and Grant Plan, as amended (the "2019 Plan") and/or the 2022 Stock Option and Incentive Plan (the "2022 Plan" and, together with the 2019 Plan, the "Plans"), which reduced the per share exercise price of each Repriced Option to $4.04, representing the closing price of the Issuer's common stock on The Nasdaq Global Market on the Repricing Date (the "Option Repricing"). Except as modified by the Option Repricing, all other terms and conditions of the Repriced Options, including, without limitation, any provisions with respect to vesting and term of the Repriced Options, remain in full force and effect. F1 · price: Effective as of August 1, 2025 (the "Repricing Date"), the Issuer's stockholders approved a one-time repricing of certain outstanding stock options (the "Repriced Options") granted under the Issuer's 2019 Stock Option and Grant Plan, as amended (the "2019 Plan") and/or the 2022 Stock Option and Incentive Plan (the "2022 Plan" and, together with the 2019 Plan, the "Plans"), which reduced the per share exercise price of each Repriced Option to $4.04, representing the closing price of the Issuer's common stock on The Nasdaq Global Market on the Repricing Date (the "Option Repricing"). Except as modified by the Option Repricing, all other terms and conditions of the Repriced Options, including, without limitation, any provisions with respect to vesting and term of the Repriced Options, remain in full force and effect. F2 · derivative.exercise_date: This stock option award was issued pursuant to the 2019 Plan and/or the 2022 Plan, as applicable, and becomes exercisable in accordance with the vesting schedule specified in the award agreement and as previously reported on applicable Form 4, subject to the Reporting Person's continued service with the Issuer as of the applicable vesting date. Read SEC document |
| August 01, 2025 Filed Aug 6, 2025 00:42 UTC | Prime Medicine, Inc. PRME · Entity 5281 | GrantStock Option (right to buy) · Derivative | 39,062 | Not disclosed Strike: $4.04 | Not disclosed |
DisclosureSEC source: 0001894562-25-000044 · wk-form4_1754440963.xml · derivative · entry 2 Cahill Thomas · CIK 0001922939 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 39,062 Underlying: Common Stock · 39,062 shares Expires 2033-06-14 F1 · kind: Effective as of August 1, 2025 (the "Repricing Date"), the Issuer's stockholders approved a one-time repricing of certain outstanding stock options (the "Repriced Options") granted under the Issuer's 2019 Stock Option and Grant Plan, as amended (the "2019 Plan") and/or the 2022 Stock Option and Incentive Plan (the "2022 Plan" and, together with the 2019 Plan, the "Plans"), which reduced the per share exercise price of each Repriced Option to $4.04, representing the closing price of the Issuer's common stock on The Nasdaq Global Market on the Repricing Date (the "Option Repricing"). Except as modified by the Option Repricing, all other terms and conditions of the Repriced Options, including, without limitation, any provisions with respect to vesting and term of the Repriced Options, remain in full force and effect. F1 · price: Effective as of August 1, 2025 (the "Repricing Date"), the Issuer's stockholders approved a one-time repricing of certain outstanding stock options (the "Repriced Options") granted under the Issuer's 2019 Stock Option and Grant Plan, as amended (the "2019 Plan") and/or the 2022 Stock Option and Incentive Plan (the "2022 Plan" and, together with the 2019 Plan, the "Plans"), which reduced the per share exercise price of each Repriced Option to $4.04, representing the closing price of the Issuer's common stock on The Nasdaq Global Market on the Repricing Date (the "Option Repricing"). Except as modified by the Option Repricing, all other terms and conditions of the Repriced Options, including, without limitation, any provisions with respect to vesting and term of the Repriced Options, remain in full force and effect. F2 · derivative.exercise_date: This stock option award was issued pursuant to the 2019 Plan and/or the 2022 Plan, as applicable, and becomes exercisable in accordance with the vesting schedule specified in the award agreement and as previously reported on applicable Form 4, subject to the Reporting Person's continued service with the Issuer as of the applicable vesting date. Read SEC document |
| August 01, 2025 Filed Aug 6, 2025 00:42 UTC | Prime Medicine, Inc. PRME · Entity 5281 | Disposition to issuerStock Option (right to buy) · Derivative | 39,062 | Not disclosed Strike: $14.83 | Not disclosed |
DisclosureSEC source: 0001894562-25-000044 · wk-form4_1754440963.xml · derivative · entry 1 Cahill Thomas · CIK 0001922939 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 39,062 shares Expires 2033-06-14 F1 · kind: Effective as of August 1, 2025 (the "Repricing Date"), the Issuer's stockholders approved a one-time repricing of certain outstanding stock options (the "Repriced Options") granted under the Issuer's 2019 Stock Option and Grant Plan, as amended (the "2019 Plan") and/or the 2022 Stock Option and Incentive Plan (the "2022 Plan" and, together with the 2019 Plan, the "Plans"), which reduced the per share exercise price of each Repriced Option to $4.04, representing the closing price of the Issuer's common stock on The Nasdaq Global Market on the Repricing Date (the "Option Repricing"). Except as modified by the Option Repricing, all other terms and conditions of the Repriced Options, including, without limitation, any provisions with respect to vesting and term of the Repriced Options, remain in full force and effect. F1 · price: Effective as of August 1, 2025 (the "Repricing Date"), the Issuer's stockholders approved a one-time repricing of certain outstanding stock options (the "Repriced Options") granted under the Issuer's 2019 Stock Option and Grant Plan, as amended (the "2019 Plan") and/or the 2022 Stock Option and Incentive Plan (the "2022 Plan" and, together with the 2019 Plan, the "Plans"), which reduced the per share exercise price of each Repriced Option to $4.04, representing the closing price of the Issuer's common stock on The Nasdaq Global Market on the Repricing Date (the "Option Repricing"). Except as modified by the Option Repricing, all other terms and conditions of the Repriced Options, including, without limitation, any provisions with respect to vesting and term of the Repriced Options, remain in full force and effect. F2 · derivative.exercise_date: This stock option award was issued pursuant to the 2019 Plan and/or the 2022 Plan, as applicable, and becomes exercisable in accordance with the vesting schedule specified in the award agreement and as previously reported on applicable Form 4, subject to the Reporting Person's continued service with the Issuer as of the applicable vesting date. Read SEC document |
| June 04, 2025 Filed Jun 5, 2025 22:11 UTC | Prime Medicine, Inc. PRME · Entity 5281 | GrantStock Option (right to buy) · Derivative | 55,000 | $0.00 Strike: $1.32 | $0.00 |
DisclosureSEC source: 0001628280-25-029768 · wk-form4_1749161263.xml · derivative · entry 1 Cahill Thomas · CIK 0001922939 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 55,000 Underlying: Common Stock · 55,000 shares Expires 2035-06-04 F1 · derivative.exercise_date: The shares subject to this option shall vest in full upon the earlier of (i) June 4, 2026 or (ii) the date of the next annual meeting of stockholders, subject to the Reporting Person's continuous service to the Issuer through such vesting date. Read SEC document |
| June 12, 2024 Filed Jun 14, 2024 20:58 UTC | Prime Medicine, Inc. PRME · Entity 5281 | GrantStock Option (right to buy) · Derivative | 45,000 | $0.00 Strike: $7.68 | $0.00 |
DisclosureSEC source: 0001894562-24-000035 · wk-form4_1718398714.xml · derivative · entry 1 Cahill Thomas · CIK 0001922939 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 45,000 Underlying: Common Stock · 45,000 shares Expires 2034-06-12 F1 · derivative.exercise_date: The shares subject to this option shall vest in full upon the earlier of (i) June 12, 2025 or (ii) the date of the next annual meeting of stockholders, subject to the Reporting Person's continuous service to the Issuer through such vesting date. Read SEC document |
| June 14, 2023 Filed Jun 16, 2023 21:51 UTC | Prime Medicine, Inc. PRME · Entity 5281 | GrantStock Option (right to buy) · Derivative | 39,062 | $0.00 Strike: $14.83 | $0.00 |
DisclosureSEC source: 0001894562-23-000028 · wf-form4_168695226752131.xml · derivative · entry 1 Cahill Thomas · CIK 0001922939 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 39,062 Underlying: Common Stock · 39,062 shares Expires 2033-06-14 F1 · derivative.exercise_date: The shares subject to this option shall vest in full upon the earlier of (i) June 14, 2024 or (ii) the date of the next annual meeting of stockholders, subject to the Reporting Person's continuous service to the Issuer through such vesting date. Read SEC document |
| October 24, 2022 Filed Oct 27, 2022 00:00 UTC | Prime Medicine, Inc. PRME · Entity 5281 | ConversionSeries B Convertible Preferred Stock · Derivative | 5,250,781 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-22-027122 · wf-form4_166682881646748.xml · derivative · entry 4 Cahill Thomas · CIK 0001922939 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · By Newpath Partners, L.P. Disclosed balance after: 0 Underlying: Common Stock · 1,689,005 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: The shares of Series A Convertible Preferred Stock and Series B Convertible Preferred Stock (together, the "Preferred Stock") were convertible into Common Stock on a one-for-3.10880 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on October 24, 2022. The Preferred Stock had no expiration date. F1 · derivative.exercise_date: The shares of Series A Convertible Preferred Stock and Series B Convertible Preferred Stock (together, the "Preferred Stock") were convertible into Common Stock on a one-for-3.10880 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on October 24, 2022. The Preferred Stock had no expiration date. F1 · derivative.expiration_date: The shares of Series A Convertible Preferred Stock and Series B Convertible Preferred Stock (together, the "Preferred Stock") were convertible into Common Stock on a one-for-3.10880 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on October 24, 2022. The Preferred Stock had no expiration date. F2 · ownership.nature: Represents shares held directly by Newpath Partners, L.P. ("Newpath LP"). Newpath Partners GP, L.P. ("Newpath GP LP") is the general partner of Newpath LP. Newpath Partners GP, LLC ("Newpath GP LLC") is the general partner of Newpath GP LP. The Reporting Person is a managing member of Newpath GP LLC, and disclaims beneficial ownership of the shares held directly by Newpath LP except to the extent of any pecuniary interest therein, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose. Read SEC document |
| October 24, 2022 Filed Oct 27, 2022 00:00 UTC | Prime Medicine, Inc. PRME · Entity 5281 | ConversionSeries A Convertible Preferred Stock · Derivative | 9,999,999 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-22-027122 · wf-form4_166682881646748.xml · derivative · entry 3 Cahill Thomas · CIK 0001922939 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · By Newpath Partners, L.P. Disclosed balance after: 0 Underlying: Common Stock · 3,216,674 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: The shares of Series A Convertible Preferred Stock and Series B Convertible Preferred Stock (together, the "Preferred Stock") were convertible into Common Stock on a one-for-3.10880 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on October 24, 2022. The Preferred Stock had no expiration date. F1 · derivative.exercise_date: The shares of Series A Convertible Preferred Stock and Series B Convertible Preferred Stock (together, the "Preferred Stock") were convertible into Common Stock on a one-for-3.10880 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on October 24, 2022. The Preferred Stock had no expiration date. F1 · derivative.expiration_date: The shares of Series A Convertible Preferred Stock and Series B Convertible Preferred Stock (together, the "Preferred Stock") were convertible into Common Stock on a one-for-3.10880 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on October 24, 2022. The Preferred Stock had no expiration date. F2 · ownership.nature: Represents shares held directly by Newpath Partners, L.P. ("Newpath LP"). Newpath Partners GP, L.P. ("Newpath GP LP") is the general partner of Newpath LP. Newpath Partners GP, LLC ("Newpath GP LLC") is the general partner of Newpath GP LP. The Reporting Person is a managing member of Newpath GP LLC, and disclaims beneficial ownership of the shares held directly by Newpath LP except to the extent of any pecuniary interest therein, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose. Read SEC document |
| October 24, 2022 Filed Oct 27, 2022 00:00 UTC | Prime Medicine, Inc. PRME · Entity 5281 | PurchaseCommon Stock | 400,000 | $17.00 | $6,800,000.00 |
DisclosureSEC source: 0001628280-22-027122 · wf-form4_166682881646748.xml · nonDerivative · entry 2 Cahill Thomas · CIK 0001922939 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · By Newpath Partners, L.P. Disclosed balance after: 5,305,679 F3 · shares: Reflects shares purchased by Newpath LP in the Issuer's initial public offering. F2 · ownership.nature: Represents shares held directly by Newpath Partners, L.P. ("Newpath LP"). Newpath Partners GP, L.P. ("Newpath GP LP") is the general partner of Newpath LP. Newpath Partners GP, LLC ("Newpath GP LLC") is the general partner of Newpath GP LP. The Reporting Person is a managing member of Newpath GP LLC, and disclaims beneficial ownership of the shares held directly by Newpath LP except to the extent of any pecuniary interest therein, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose. Read SEC document |
| October 24, 2022 Filed Oct 27, 2022 00:00 UTC | Prime Medicine, Inc. PRME · Entity 5281 | ConversionCommon Stock | 4,905,679 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001628280-22-027122 · wf-form4_166682881646748.xml · nonDerivative · entry 1 Cahill Thomas · CIK 0001922939 · Director 10b5-1 filing: Not disclosed Ownership: Indirect · By Newpath Partners, L.P. Disclosed balance after: 4,905,679 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: The shares of Series A Convertible Preferred Stock and Series B Convertible Preferred Stock (together, the "Preferred Stock") were convertible into Common Stock on a one-for-3.10880 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on October 24, 2022. The Preferred Stock had no expiration date. F2 · ownership.nature: Represents shares held directly by Newpath Partners, L.P. ("Newpath LP"). Newpath Partners GP, L.P. ("Newpath GP LP") is the general partner of Newpath LP. Newpath Partners GP, LLC ("Newpath GP LLC") is the general partner of Newpath GP LP. The Reporting Person is a managing member of Newpath GP LLC, and disclaims beneficial ownership of the shares held directly by Newpath LP except to the extent of any pecuniary interest therein, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.