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Alnylam Pharmaceuticals, Inc.

ALNY
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001178670

No open-market purchases or sales by Alnylam Pharmaceuticals, Inc. insiders were filed in the last 90 days; 794 institutions reported holding it in 13F filings for Q2 2026, worth $40.1B in total; no superinvestor holds it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Alnylam Pharmaceuticals, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
0 filings
Insiders trading
0
Net value
$0
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Alnylam Pharmaceuticals, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Alnylam Pharmaceuticals, Inc.
NameTitleLast reported holdingLast filingFilings, past year
Greenstreet YvonneChief Executive Officer95,802Sep 22, 20269
Pyott David E IDirector1,582Jun 3, 20262
Cravatt BenjaminDirector–Jun 3, 20261
Kellogg Peter NDirector1,446May 22, 20261
Hamburg Margaret ADirector1,582May 22, 20261
Ausiello Dennis ADirector1,582May 22, 20261
Schulman Amy WDirector24,049May 22, 20262
Brandicourt OlivierDirector1,446May 22, 20261
Arbuckle Stuart ADirector671May 22, 20262
Sigal Charles ElliottDirector1,446May 22, 20261
Reitan Colleen FDirector1,446May 22, 20261
McLaughlin MelissaChief Human Resources Officer9,443Apr 7, 20261
Poulton Jeffrey V.EVP, Chief Financial Officer61,805Mar 6, 20266
Garg PushkalEVP Chief R&D18,693Mar 6, 20266
Tanguler TolgaEVP, Chief Commercial Officer34,297Mar 6, 20266
Fitzgerald Kevin JosephCSO & EVP, Head of Research20,569Mar 6, 20267
Supran BryanEVP, CLO and Secretary14,565Mar 4, 20262
Bonney Michael WDirector16,804Aug 19, 20250
Bertozzi Carolyn RDirector775May 12, 20250
Hesslein Robert W.EVP, CLO and Secretary8,002Mar 5, 20250
Sharp Phillip ADirector0Jan 24, 20250
Franchini Indrani LallEVP, CLO & Secretary4,133Feb 29, 20240
Vaishnaw AkshayPresident22,774Aug 7, 20230
Fanucci MarshaDirector136May 19, 20230
Paul Steven MDirector1,000Apr 5, 20220
Maraganore JohnChief Executive Officer227,663Dec 23, 20210
Keating LaurieEVP, Chief Legal Officer5,132Aug 9, 20210

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Mar 3, 2025 (view filing)Feb 283 daysGreenstreet YvonneChief Executive OfficerSSale−2.90K$241.69−$700.9K−3.3%84.5K after8 lots
Mar 3, 2025 (view filing)Feb 283 daysPoulton Jeffrey V.EVP, Chief Financial OfficerSSale−796$241.70−$192.4K−2.3%33.9K after8 lots
Mar 3, 2025 (view filing)Feb 283 daysTanguler TolgaEVP, Chief Commercial OfficerSSale−513$241.68−$124.0K−3.5%14.3K after8 lots
Mar 3, 2025 (view filing)Feb 283 daysGarg PushkalCMO & EVP Dev & Med AffairsSSale−935$241.69−$226.0K−6.7%13.0K after8 lots
Mar 3, 2025 (view filing)Feb 283 daysFitzgerald Kevin JosephCSO & EVP, Head of ResearchSSale−496$241.69−$119.9K−3.9%12.4K after8 lots
Feb 18, 2025 (view filing)Feb 144 daysGreenstreet YvonneChief Executive OfficerSSale−1.21K$255.17−$309.5K−1.5%81.5K after12 lots
Feb 18, 2025 (view filing)Feb 144 daysPoulton Jeffrey V.EVP, Chief Financial OfficerSSale−967$255.17−$246.7K−2.9%32.8K after12 lots
Feb 18, 2025 (view filing)Feb 14-184 daysFitzgerald Kevin JosephCSO & EVP, Head of ResearchSSale−2.10K$252.71−$531.4K−14.0%12.9K after17 lots10b5-1
Feb 18, 2025 (view filing)Feb 14-184 daysGarg PushkalCMO & EVP Dev & Med AffairsSSale−3.11K$253.43−$787.9K−20.6%12.0K after18 lots10b5-1
Jan 29, 2025 (view filing)Jan 272 daysGarg PushkalCMO & EVP Dev & Med AffairsSSale−52.6K$285.00−$15.0M−81.4%12.0K after10b5-1
Jan 24, 2025 (view filing)Jan 231 daySharp Phillip ADirectorSSale−11.3K$275.00−$3.09M−100.0%0 after10b5-1
Dec 13, 2024 (view filing)Dec 121 dayGarg PushkalCMO & EVP Dev & Med AffairsSSale−1.75K$251.00−$439.8K−10.0%15.7K after7 lots10b5-1
Nov 27, 2024 (view filing)Nov 261 dayGreenstreet YvonneChief Executive OfficerSSale−5.22K$250.98−$1.31M−6.2%78.9K after5 lots
Nov 27, 2024 (view filing)Nov 261 dayGarg PushkalCMO & EVP Dev & Med AffairsSSale−1.68K$250.98−$422.1K−8.8%17.5K after5 lots
Nov 27, 2024 (view filing)Nov 261 dayPoulton Jeffrey V.EVP, Chief Financial OfficerSSale−1.68K$250.98−$422.1K−5.2%30.6K after5 lots
Nov 27, 2024 (view filing)Nov 261 dayTanguler TolgaEVP, Chief Commercial OfficerSSale−1.47K$250.98−$368.7K−10.0%13.2K after5 lots
Nov 27, 2024 (view filing)Nov 26-271 dayFitzgerald Kevin JosephCSO & EVP, Head of ResearchSSale−3.00K$251.65−$754.9K−18.9%12.9K after9 lots10b5-1
Aug 22, 2024 (view filing)Aug 202 daysGreenstreet YvonneChief Executive OfficerSSale−15.0K$280.00−$4.20M−17.0%73.4K after10b5-1
Aug 14, 2024 (view filing)Aug 122 daysFitzgerald Kevin JosephCSO & EVP, Head of ResearchSSale−22.0K$270.99−$5.97M−63.1%12.9K after6 lots10b5-1
Aug 8, 2024 (view filing)Aug 62 daysAusiello Dennis ADirectorSSale−20.3K$262.00−$5.31M−99.3%136 after7 lots10b5-1
Aug 2, 2024 (view filing)Aug 11 dayGreenstreet YvonneChief Executive OfficerSSale−15.1K$270.00−$4.09M−17.1%73.4K after10b5-1
Jul 12, 2024 (view filing)Jul 111 dayGreenstreet YvonneChief Executive OfficerSSale−7.09K$261.00−$1.85M−8.8%73.4K after10b5-1
Jun 27, 2024 (view filing)Jun 252 daysSchulman Amy WDirectorSSale−8.50K$240.00−$2.04M−50.2%8.44K after10b5-1
Jun 26, 2024 (view filing)Jun 242 daysPyott David E IDirectorSSale−32.5K$220.69−$7.16M−99.6%136 after3 lots10b5-1
Jun 26, 2024 (view filing)Jun 251 dayGarg PushkalCMO & EVP Dev & Med AffairsSSale−2.10K$230.99−$485.8K−11.9%15.6K after12 lots
Jun 26, 2024 (view filing)Jun 251 dayGreenstreet YvonneChief Executive OfficerSSale−8.30K$230.99−$1.92M−9.3%80.5K after12 lots
Jun 26, 2024 (view filing)Jun 251 dayPoulton Jeffrey V.EVP, Chief Financial OfficerSSale−1.60K$231.00−$370.7K−5.3%28.9K after12 lots
Jun 26, 2024 (view filing)Jun 251 dayTanguler TolgaEVP, Chief Commercial OfficerSSale−1.60K$231.00−$370.7K−12.1%11.7K after12 lots
Jun 26, 2024 (view filing)Jun 251 dayFitzgerald Kevin JosephCSO & EVP, Head of ResearchSSale−1.20K$230.99−$276.7K−7.8%14.2K after12 lots
May 31, 2024 (view filing)May 292 daysSchulman Amy WDirectorSSale−21.7K$148.60−$3.22M−72.0%8.44K after3 lots10b5-1
Mar 1, 2024 (view filing)Feb 291 daySharp Phillip ADirectorSSale−30.0K$151.34−$4.54M−100.0%0 after6 lots10b5-1
Feb 29, 2024 (view filing)Feb 281 dayTanguler TolgaEVP, Chief Commercial OfficerSSale−501$155.30−$77.8K−8.7%5.24K after5 lots
Feb 29, 2024 (view filing)Feb 281 dayPoulton Jeffrey V.EVP, Chief Financial OfficerSSale−574$155.30−$89.1K−2.9%19.5K after5 lots
Feb 29, 2024 (view filing)Feb 281 dayGreenstreet YvonneChief Executive OfficerSSale−2.93K$155.31−$455.4K−5.7%48.1K after5 lots
Feb 29, 2024 (view filing)Feb 281 dayGarg PushkalCMO & EVP Dev & Med AffairsSSale−574$155.30−$89.1K−6.2%8.67K after5 lots
Feb 29, 2024 (view filing)Feb 281 dayFranchini Indrani LallEVP, CLO & SecretarySSale−329$155.30−$51.1K−7.4%4.13K after5 lots
Feb 20, 2024 (view filing)Feb 164 daysGarg PushkalCMO & EVP Dev & Med AffairsSSale−1.31K$148.06−$193.7K−15.1%7.33K after3 lots
Feb 20, 2024 (view filing)Feb 164 daysPoulton Jeffrey V.EVP, Chief Financial OfficerSSale−1.01K$148.06−$149.1K−5.3%18.1K after3 lots
Feb 20, 2024 (view filing)Feb 164 daysTanguler TolgaEVP, Chief Commercial OfficerSSale−1.01K$148.06−$149.4K−19.9%4.07K after3 lots
Feb 20, 2024 (view filing)Feb 164 daysGreenstreet YvonneChief Executive OfficerSSale−7.03K$148.06−$1.04M−13.5%45.1K after3 lots
Feb 5, 2024 (view filing)Feb 23 daysFranchini Indrani LallEVP, CLO & SecretarySSale−1.59K$170.99−$272.1K−30.7%3.58K after3 lots
Dec 29, 2023 (view filing)Dec 272 daysBonney Michael WDirectorSSale−30.0K$195.00−$5.85M−65.2%16.0K after10b5-1
Aug 7, 2023 (view filing)Aug 4-73 daysGarg PushkalCMO & EVP Dev & Med AffairsSSale−7.63K$184.78−$1.41M−63.7%4.34K after9 lots
Aug 7, 2023 (view filing)Aug 43 daysPoulton Jeffrey V.EVP, Chief Financial OfficerSSale−3.46K$185.85−$643.0K−17.9%15.9K after6 lots
Aug 7, 2023 (view filing)Aug 43 daysGreenstreet YvonneChief Executive OfficerSSale−4.06K$185.85−$754.0K−10.3%35.2K after6 lots
Aug 7, 2023 (view filing)Aug 43 daysVaishnaw AkshayPresidentSSale−4.06K$185.85−$754.0K−15.1%22.8K after6 lots
Aug 4, 2023 (view filing)Aug 31 dayBonney Michael WDirectorSSale−6.45K$185.38−$1.20M−28.7%16.0K after7 lots
Apr 28, 2023 (view filing)Apr 271 dayGreenstreet YvonneChief Executive OfficerSSale−7.62K$194.59−$1.48M−20.1%30.3K after5 lots
Apr 28, 2023 (view filing)Apr 271 dayPoulton Jeffrey V.EVP, Chief Financial OfficerSSale−977$194.59−$190.1K−7.7%11.7K after5 lots
Apr 28, 2023 (view filing)Apr 271 dayTanguler TolgaEVP, Chief Commercial OfficerSSale−1.48K$194.59−$287.2K−45.0%1.80K after5 lots