ALNYAlnylam Pharmaceuticals, Inc.
Healthcare · BiotechnologyNasdaqStockMkt cap $34.9B
Disclosed trades
10
0 in 30d · 1 in 90d
Politicians
4
Last trade Aug 11, 2026
Buys
4
$56.5K at range midpoints
Sells
6
$97K at range midpoints
Closing price · 365 days
Sep 24, 2025 – Sep 23, 2026
Monthly buys vs sells · 24 months
Counts of disclosed transactions
- Buys
- Sells (incl. partial)
Politicians who traded it
2 hold it now Estimated
| Politician | Seat | Trades | Buys | Sells | Bought (mid) | Sold (mid) | Last trade | Est. position Estimated |
|---|---|---|---|---|---|---|---|---|
| DJosh Gottheimer | House · NJ-05 | 6 | 3 | 3 | $24K | $24K | Jan 29, 2024 | $63 |
| DDaniel S. Goldman | House · NY-10 | 2 | 1 | 1 | $32.5K | $32.5K | Mar 6, 2023 | $40.1K |
| DCory A. Booker | Senate · NJ | 1 | 0 | 1 | $0 | $8K | Aug 11, 2026 | — |
| RJefferson Shreve | House · IN-06 | 1 | 0 | 1 | $0 | $32.5K | May 12, 2025 | — |
Recent trades
| Politician | Ticker | Asset | Type | Owner | Amount | Traded | Filed | Source |
|---|---|---|---|---|---|---|---|---|
| DCory A. Booker | ALNY | Alnylam Pharmaceuticals, Inc. - Common Stock | Sell | Spouse | $1,001 - $15,000 | Aug 11, 2026 | Sep 9, 202629d | Filing |
| RJefferson Shreve | ALNY | Alnylam Pharmaceuticals, Inc. - Common Stock (ALNY) | Sell | Self | $15,001 - $50,000 | May 12, 2025 | Jun 22, 202541d | Filing |
| DJosh Gottheimer | ALNY | Alnylam Pharmaceuticals, Inc. - Common Stock (ALNY) | Sell | Joint | $1,001 - $15,000 | Jan 29, 2024 | Feb 15, 202417d | Filing |
| DJosh Gottheimer | ALNY | Alnylam Pharmaceuticals, Inc. - Common Stock (ALNY) | Buy | Joint | $1,001 - $15,000 | Jan 11, 2024 | Feb 15, 202435d | Filing |
| DJosh Gottheimer | ALNY | Alnylam Pharmaceuticals, Inc. (ALNY) | Sell | Joint | $1,001 - $15,000 | Dec 11, 2023 | Jan 7, 202427d | Filing |
| DDaniel S. Goldman | ALNY | Alnylam Pharmaceuticals, Inc. (ALNY) | Buy | Self | $15,001 - $50,000 | Mar 6, 2023 | Apr 17, 202342d | Filing |
| DDaniel S. Goldman | ALNY | Alnylam Pharmaceuticals, Inc. (ALNY) | Sell | Self | $15,001 - $50,000 | Jan 31, 2023 | Feb 24, 202324d | Filing |
| DJosh Gottheimer | ALNY | Alnylam Pharmaceuticals, Inc. (ALNY) | Buy | Joint | $1,001 - $15,000 | Sep 28, 2022 | Oct 16, 202218d | Filing |
| DJosh Gottheimer | ALNY | Alnylam Pharmaceuticals, Inc. (ALNY) | Sell | Joint | $1,001 - $15,000 | Nov 13, 2020 | Dec 9, 202026d | Filing |
| DJosh Gottheimer | ALNY | alnylam Pharmaceuticals, Inc. (aLNY) | Buy | Joint | $1,001 - $15,000 | Apr 6, 2020 | May 13, 202037d | Filing |
Insider activity Filed
Insiders
22
Pharmaceutical Preparations
Open-market buys · 90d
0
$0 bought
Open-market sells · 90d
0
$0 sold
Net · 90d
$0
-$53.7M net over 12 months · last Sep 19, 2026
| Date | Insider | Kind | Security | Shares | Price | Value | Post-holdings | D/I | 10b5-1 | Source |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 19, 2026filed Sep 22, 2026 | Yvonne GreenstreetChief Executive Officer | Award | Common Stock | 107 | $0.00 | $0 | 95,802 | D | — | 4 |
| Jun 1, 2026filed Jun 3, 2026 | David E I Pyott | Exercise | Stock Option (Right to Buy)deriv. | −3,830 | $0.00 | — | 0 | D | 10b5-1 | 4 |
| Jun 1, 2026filed Jun 3, 2026 | David E I Pyott | Sale | Common Stock | −17 | $302.65 | $5,145 | 1,582 | D | 10b5-1 | 4 |
| Jun 1, 2026filed Jun 3, 2026 | David E I Pyott | Sale | Common Stock | −495 | $300.72 | $148,856 | 1,599 | D | 10b5-1 | 4 |
| Jun 1, 2026filed Jun 3, 2026 | David E I Pyott | Sale | Common Stock | −1,222 | $299.87 | $366,441 | 2,094 | D | 10b5-1 | 4 |
| Jun 1, 2026filed Jun 3, 2026 | David E I Pyott | Sale | Common Stock | −1,175 | $298.91 | $351,219 | 3,316 | D | 10b5-1 | 4 |
| Jun 1, 2026filed Jun 3, 2026 | David E I Pyott | Sale | Common Stock | −921 | $297.71 | $274,191 | 4,491 | D | 10b5-1 | 4 |
| Jun 1, 2026filed Jun 3, 2026 | David E I Pyott | Exercise | Common Stock | 3,830 | $0.00 | $0 | 5,412 | D | 10b5-1 | 4 |
| Jun 1, 2026filed Jun 3, 2026 | Benjamin Cravatt | Award | Stock Option (Right to Buy)deriv. | 4,393 | $0.00 | — | 4,393 | D | — | 4 |
| May 20, 2026filed May 22, 2026 | Charles Elliott Sigal | Award | Stock Option (Right to Buy)deriv. | 1,441 | $0.00 | — | 1,441 | D | — | 4 |
Shares, prices and post-transaction holdings are exactly as reported on SEC Form 4. Net figures count open-market buys minus open-market sales only (awards, exercises, withholding and gifts are excluded).
Unusual activity Estimated
- 26Exec saleJun 2, 2025
ALNY CEO Yvonne Greenstreet sold $5.9M (10b5-1 plan)
Details
- Insider
- Yvonne Greenstreet
- Company
- ALNYLAM PHARMACEUTICALS, INC.
- Ticker
- ALNY
- Tx kind
- open_market_sale
- Tx date
- Jun 2, 2025
- Shares
- 19,297
- Price
- $306
- Value
- $5.9M
- Is 10b5 1
- Yes
- 28Exec saleMay 30, 2025
ALNY CEO Yvonne Greenstreet sold $7.7M (10b5-1 plan)
Details
- Insider
- Yvonne Greenstreet
- Company
- ALNYLAM PHARMACEUTICALS, INC.
- Ticker
- ALNY
- Tx kind
- open_market_sale
- Tx date
- May 30, 2025
- Shares
- 25,469
- Price
- $304
- Value
- $7.7M
- Is 10b5 1
- Yes
- 50Insider overlapMay 12, 2025
Rep. Jefferson Shreve sold ALNY 18 days before its CEO sold $7.7M
Details
- Politician
- Jefferson Shreve
- Ticker
- ALNY
- Asset
- Alnylam Pharmaceuticals, Inc. - Common Stock (ALNY)
- Tx type
- sell
- Tx date
- May 12, 2025
- Filing date
- Jun 22, 2025
- Amount low
- $15,001
- Amount high
- $50,000
- Amount mid
- $32,501
- Disclosed range
- $15,001 - $50,000
- Reporting lag days
- 41
- Is whale
- No
- Insider trade
- {"insider":{"slug":"yvonne-greenstreet","name":"Yvonne Greenstreet","title":"Chief Executive Officer","short_title":"CEO"},"company":"ALNYLAM PHARMACEUTICALS, INC.","ticker":"ALNY","tx_kind":"open_market_sale","tx_date":"2025-05-30","shares":25469,"price":304,"value":7742576,"is_10b5_1":true}
- Days between
- -18
- Opposite side
- No