Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| ALNYLAM PHARMACEUTICALS, INC.ALNY · Entity 3132 | Director | May 20, 2026 | May 22, 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.
ALNYLAM PHARMACEUTICALS, INC.
Report date May 20, 2026 · Filed May 22, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 1,582 |
Reported balance
After 2026-05-20 transaction · row 1
1 source rowRow 1 · 2026-05-20 · Grant · Acquired 671 · Balance 1,582 F1: These shares are represented by restricted stock units (RSUs) granted under the Second Amended and Restated 2018 Stock Incentive Plan. Each RSU represents a contingent right to receive one share of common stock. The RSUs will vest in full upon the earlier of the first anniversary of the grant date and the date of any earlier retirement or resignation of the Reporting Person, provided such date of retirement or resignation occurs no more than 90 days prior to the first anniversary of the grant date. |
| Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $298.48 · Expires 2036-05-20 | Direct | 1,441 |
Reported balance
After 2026-05-20 transaction · row 2
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 2 · 2026-05-20 · Grant · Acquired 1,441 · Balance 1,441 F2: The stock option will vest in full upon the earlier of the first anniversary of the grant date and the date of any earlier retirement or resignation of the Reporting Person, provided such date of retirement or resignation occurs no more than 90 days prior to the first anniversary of the grant date. |
Filing footnotes · ownership attribution and instrument terms
F1: These shares are represented by restricted stock units (RSUs) granted under the Second Amended and Restated 2018 Stock Incentive Plan. Each RSU represents a contingent right to receive one share of common stock. The RSUs will vest in full upon the earlier of the first anniversary of the grant date and the date of any earlier retirement or resignation of the Reporting Person, provided such date of retirement or resignation occurs no more than 90 days prior to the first anniversary of the grant date.
F2: The stock option will vest in full upon the earlier of the first anniversary of the grant date and the date of any earlier retirement or resignation of the Reporting Person, provided such date of retirement or resignation occurs no more than 90 days prior to the first anniversary of the grant 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 |
|---|---|---|---|---|---|---|
| May 20, 2026 Filed May 22, 2026 20:11 UTC | ALNYLAM PHARMACEUTICALS, INC. ALNY · Entity 3132 | GrantStock Option (Right to Buy) · Derivative | 1,441 | $0.00 Strike: $298.48 | $0.00 |
DisclosureSEC source: 0001178670-26-000037 · form4.xml · derivative · entry 2 HAMBURG MARGARET A · CIK 0001266917 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,441 Underlying: Common Stock · 1,441 shares Expires 2036-05-20 F2 · derivative.exercise_date: The stock option will vest in full upon the earlier of the first anniversary of the grant date and the date of any earlier retirement or resignation of the Reporting Person, provided such date of retirement or resignation occurs no more than 90 days prior to the first anniversary of the grant date. Read SEC document |
| May 20, 2026 Filed May 22, 2026 20:11 UTC | ALNYLAM PHARMACEUTICALS, INC. ALNY · Entity 3132 | GrantCommon Stock | 671 | $0.00 | $0.00 |
DisclosureSEC source: 0001178670-26-000037 · form4.xml · nonDerivative · entry 1 HAMBURG MARGARET A · CIK 0001266917 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,582 F1 · shares: These shares are represented by restricted stock units (RSUs) granted under the Second Amended and Restated 2018 Stock Incentive Plan. Each RSU represents a contingent right to receive one share of common stock. The RSUs will vest in full upon the earlier of the first anniversary of the grant date and the date of any earlier retirement or resignation of the Reporting Person, provided such date of retirement or resignation occurs no more than 90 days prior to the first anniversary of the grant date. Read SEC document |
| May 08, 2025 Filed May 12, 2025 20:06 UTC | ALNYLAM PHARMACEUTICALS, INC. ALNY · Entity 3132 | GrantStock Option (right to buy) · Derivative | 1,558 | $0.00 Strike: $258.35 | $0.00 |
DisclosureSEC source: 0001735276-25-000065 · edgardoc.xml · derivative · entry 2 HAMBURG MARGARET A · CIK 0001266917 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,558 Underlying: Common Stock · 1,558 shares Expires 2035-05-08 F2 · derivative.exercise_date: The stock option vests in full upon the earlier of the first anniversary of the grant date and the date of any earlier retirement or resignation of the Reporting Person, provided such date of retirement or resignation occurs no more than 90 days prior to the first anniversary of the grant date. Read SEC document |
| May 08, 2025 Filed May 12, 2025 20:06 UTC | ALNYLAM PHARMACEUTICALS, INC. ALNY · Entity 3132 | GrantCommon Stock | 775 | $0.00 | $0.00 |
DisclosureSEC source: 0001735276-25-000065 · edgardoc.xml · nonDerivative · entry 1 HAMBURG MARGARET A · CIK 0001266917 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 911 F1 · shares: These shares are represented by restricted stock units (RSUs) granted under the Amended and Restated 2018 Stock Incentive Plan. Each RSU represents a contingent right to receive one share of common stock. The RSUs will vest in full upon the earlier of the first anniversary of the grant date and the date of any earlier retirement or resignation of the Reporting Person, provided such date of retirement or resignation occurs no more than 90 days prior to the first anniversary of the grant date. Read SEC document |
| May 16, 2024 Filed May 20, 2024 20:06 UTC | ALNYLAM PHARMACEUTICALS, INC. ALNY · Entity 3132 | GrantStock Option (right to buy) · Derivative | 5,228 | $0.00 Strike: $151.22 | $0.00 |
DisclosureSEC source: 0001735276-24-000050 · edgardoc.xml · derivative · entry 1 HAMBURG MARGARET A · CIK 0001266917 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 5,228 Underlying: Common Stock · 5,228 shares Expires 2034-05-16 F1 · derivative.exercise_date: This award vests in full upon the earlier of the first anniversary of the grant date and the date of any earlier retirement or resignation of the Reporting Person, provided such date of retirement or resignation occurs no more than 90 days prior to the first anniversary of the grant date. Read SEC document |
| May 18, 2023 Filed May 19, 2023 20:05 UTC | ALNYLAM PHARMACEUTICALS, INC. ALNY · Entity 3132 | GrantStock Option (right to buy) · Derivative | 3,454 | $0.00 Strike: $189.87 | $0.00 |
DisclosureSEC source: 0001735276-23-000065 · edgardoc.xml · derivative · entry 1 HAMBURG MARGARET A · CIK 0001266917 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,454 Underlying: Common Stock · 3,454 shares Expires 2033-05-18 F1 · derivative.exercise_date: This award vests in full upon the earlier of the first anniversary of the grant date and the date of any earlier retirement or resignation of the Reporting Person, provided such date of retirement or resignation occurs no more than 90 days prior to the first anniversary of the grant date. Read SEC document |
| February 23, 2023 Filed Feb 27, 2023 21:12 UTC | ALNYLAM PHARMACEUTICALS, INC. ALNY · Entity 3132 | Exercise / conversionRestricted Stock Units · Derivative | 136 | $0.00 | $0.00 |
DisclosureSEC source: 0001735276-23-000017 · edgardoc.xml · derivative · entry 2 HAMBURG MARGARET A · CIK 0001266917 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 136 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: Each restricted stock unit represents a contingent right to receive one share of ALNY common stock. F2 · derivative.exercise_date: This award vested on February 23, 2023, the first anniversary of the grant date. F2 · derivative.expiration_date: This award vested on February 23, 2023, the first anniversary of the grant date. Read SEC document |
| February 23, 2023 Filed Feb 27, 2023 21:12 UTC | ALNYLAM PHARMACEUTICALS, INC. ALNY · Entity 3132 | Exercise / conversionCommon Stock | 136 | $0.00 | $0.00 |
DisclosureSEC source: 0001735276-23-000017 · edgardoc.xml · nonDerivative · entry 1 HAMBURG MARGARET A · CIK 0001266917 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 136 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. Read SEC document |
| May 18, 2022 Filed May 20, 2022 20:07 UTC | ALNYLAM PHARMACEUTICALS, INC. ALNY · Entity 3132 | GrantStock Option (right to buy) · Derivative | 5,153 | $0.00 Strike: $128.31 | $0.00 |
DisclosureSEC source: 0001735276-22-000053 · edgardoc.xml · derivative · entry 1 HAMBURG MARGARET A · CIK 0001266917 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,153 Underlying: Common Stock · 5,153 shares Expires 2032-05-17 F1 · derivative.exercise_date: This award vests in full upon the earlier of the first anniversary of the grant date and the date of any earlier retirement or resignation of the Reporting Person, provided such date of retirement or resignation occurs no more than 90 days prior to the first anniversary of the grant date. Read SEC document |
| February 23, 2022 Filed Feb 25, 2022 21:09 UTC | ALNYLAM PHARMACEUTICALS, INC. ALNY · Entity 3132 | GrantRestricted Stock Units · Derivative | 136 | $0.00 | $0.00 |
DisclosureSEC source: 0001735276-22-000030 · edgardoc.xml · derivative · entry 1 HAMBURG MARGARET A · CIK 0001266917 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 136 Underlying: Common Stock · 136 shares Expires not disclosed F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of ALNY common stock. F2 · derivative.exercise_date: This award vests in full upon the earlier of the first anniversary of the grant date and the date of any earlier retirement or resignation of the Reporting Person, provided such date of retirement or resignation occurs no more than 90 days prior to the first anniversary of the grant date. F2 · derivative.expiration_date: This award vests in full upon the earlier of the first anniversary of the grant date and the date of any earlier retirement or resignation of the Reporting Person, provided such date of retirement or resignation occurs no more than 90 days prior to the first anniversary of the grant date. Read SEC document |
| July 15, 2021 Filed Jul 19, 2021 20:22 UTC | ALNYLAM PHARMACEUTICALS, INC. ALNY · Entity 3132 | GrantStock Option (right to buy) · Derivative | 4,032 | $0.00 Strike: $171.95 | $0.00 |
DisclosureSEC source: 0001735276-21-000071 · edgardoc.xml · derivative · entry 1 HAMBURG MARGARET A · CIK 0001266917 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 4,032 Underlying: Common Stock · 4,032 shares Expires 2031-07-14 F1 · derivative.exercise_date: This award vests in full upon the earlier of the first anniversary of the grant date and the date of any earlier retirement or resignation of the Reporting Person, provided such date of retirement or resignation occurs no more than 90 days prior to the first anniversary of the grant date. Read SEC document |
| July 01, 2020 Filed Jul 6, 2020 20:53 UTC | ALNYLAM PHARMACEUTICALS, INC. ALNY · Entity 3132 | GrantStock Option (right to buy) · Derivative | 4,581 | $0.00 Strike: $148.77 | $0.00 |
DisclosureSEC source: 0001735276-20-000082 · edgardoc.xml · derivative · entry 1 HAMBURG MARGARET A · CIK 0001266917 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 4,581 Underlying: Common Stock · 4,581 shares Expires 2030-07-01 Read SEC document |
| July 01, 2019 Filed Jul 2, 2019 20:05 UTC | ALNYLAM PHARMACEUTICALS, INC. ALNY · Entity 3132 | GrantStock Option (right to buy) · Derivative | 9,000 | $0.00 Strike: $72.01 | $0.00 |
DisclosureSEC source: 0001735276-19-000061 · edgardoc.xml · derivative · entry 1 HAMBURG MARGARET A · CIK 0001266917 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 9,000 Underlying: Common Stock · 9,000 shares Expires 2029-06-30 Read SEC document |
| January 10, 2019 Filed Jan 11, 2019 21:07 UTC | ALNYLAM PHARMACEUTICALS, INC. ALNY · Entity 3132 | GrantStock Option (right to buy) · Derivative | 18,000 | $0.00 Strike: $89.16 | $0.00 |
DisclosureSEC source: 0001735276-19-000016 · edgardoc.xml · derivative · entry 1 HAMBURG MARGARET A · CIK 0001266917 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 18,000 Underlying: Common Stock · 18,000 shares Expires 2029-01-10 F1 · derivative.exercise_date: The stock option will vest as to one third of the shares on each of the first, second and third anniversaries of the date of grant. 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.