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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
Apr 28, 2023 (view filing)Apr 271 dayVaishnaw AkshayPresidentSSale−2.39K$194.59−$465.5K−11.8%17.9K after5 lots
Apr 28, 2023 (view filing)Apr 27-281 dayGarg PushkalCMO & EVP Dev & Med AffairsSSale−4.29K$197.12−$846.4K−49.7%4.34K after11 lots
Apr 10, 2023 (view filing)Apr 64 daysFranchini Indrani LallEVP, CLO & SecretarySSale−3.50K$210.00−$735.0K−100.0%0 after
Mar 7, 2023 (view filing)Mar 34 daysGarg PushkalCMO & EVP Dev & Med AffairsSSale−18.1K$200.00−$3.61M−80.6%4.34K after
Feb 14, 2023 (view filing)Feb 104 daysVaishnaw AkshayPresidentSSale−38.0K$215.97−$8.22M−71.8%15.0K after5 lots
Feb 3, 2023 (view filing)Feb 21 dayFranchini Indrani LallEVP, CLO & SecretarySSale−1.68K$226.01−$378.6K−32.4%3.50K after4 lots
Feb 3, 2023 (view filing)Feb 2-31 dayTanguler TolgaEVP, Chief Commercial OfficerSSale−5.03K$230.19−$1.16M−100.0%0 after9 lots
Nov 23, 2022 (view filing)Nov 212 daysAusiello Dennis ADirectorSSale−22.5K$220.00−$4.95M−100.0%0 after
Aug 17, 2022 (view filing)Aug 152 daysSharp Phillip ADirectorSSale−33.7K$230.49−$7.76M−100.0%0 after6 lots
Aug 5, 2022 (view filing)Aug 3-52 daysTanguler TolgaEVP, Chief Commercial OfficerSSale−3.60K$214.18−$770.0K−100.0%0 after9 lots
Jul 7, 2022 (view filing)Jul 52 daysTanguler TolgaEVP, Chief Commercial OfficerSSale−1.75K$150.00−$263.1K−50.0%1.75K after
Apr 5, 2022 (view filing)Apr 14 daysPaul Steven MDirectorSSale−15.0K$170.69−$2.56M−93.8%1.00K after10 lots
Feb 11, 2022 (view filing)Feb 92 daysSharp Phillip ADirectorSSale−30.0K$150.00−$4.50M−100.0%0 after
Dec 23, 2021 (view filing)Dec 23Same dayVaishnaw AkshayPresident, R&DSSale−2.88K$190.93−$549.7K−20.4%11.2K after17 lots
Nov 12, 2021 (view filing)Nov 12Same dayMaraganore JohnChief Executive OfficerSSale−34.0K$171.52−$5.83M−13.7%214.8K after5 lots
Aug 16, 2021 (view filing)Aug 133 daysMaraganore JohnChief Executive OfficerSSale−34.0K$199.78−$6.79M−13.7%214.8K after5 lots
Aug 11, 2021 (view filing)Aug 92 daysVaishnaw AkshayPresident, R&DSSale−10.8K$200.00−$2.17M−49.1%11.2K after
Aug 9, 2021 (view filing)Aug 54 daysKeating LaurieEVP, Chief Legal OfficerSSale−10.0K$188.95−$1.89M−66.1%5.13K after
Aug 9, 2021 (view filing)Aug 63 daysGreenstreet YvonnePresident & COOSSale−53.1K$199.00−$10.6M−82.8%11.0K after
Jul 14, 2021 (view filing)Jul 122 daysKeating LaurieEVP, Chief Legal OfficerSSale−6.81K$178.96−$1.22M−57.0%5.13K after2 lots