Tanguler Tolga 4
4 · ALNYLAM PHARMACEUTICALS, INC. · Filed Mar 6, 2026
Research Summary
AI-generated summary of this filing
Alnylam (ALNY) EVP Tolga Tanguler Sells 2,309 Shares
What Happened Tolga Tanguler, Executive Vice President and Chief Commercial Officer of Alnylam Pharmaceuticals, sold a total of 2,309 shares in multiple open-market transactions on March 4, 2026. The individual lots were: 106 @ $319.03 ($33,817); 102 @ $320.01 ($32,641); 215 @ $320.81 ($68,974); 289 @ $321.82 ($93,006); 350 @ $323.01 ($113,054); 767 @ $323.84 ($248,385); 272 @ $324.88 ($88,367); and 208 @ $325.67 ($67,739). Aggregate proceeds were about $745,983. These sales were reported on a Form 4 filed March 6, 2026.
Key Details
- Transaction date: March 4, 2026; Form 4 filed March 6, 2026 (appears timely).
- Sale type: Open-market sales coded "S"; total 2,309 shares for ~$746K.
- Price range: reported prices/weighted averages span roughly $318.27 to $326.21 (footnotes indicate some prices are weighted averages across multiple executions).
- Footnotes: F1 indicates these were automatic sell-to-cover transactions by the company to satisfy minimum statutory tax withholding on vesting restricted stock units (RSUs). F2–F9 explain weighted-average pricing ranges and availability of breakdowns upon request.
- Shares owned after transaction: Not specified in the provided filing excerpt.
Context
- These transactions are routine sell-to-cover tax-withholding sales tied to RSU vesting, not discretionary open-market liquidation for investment decisions. Such sales are common when RSUs vest and are generally considered administrative rather than a signal of insider sentiment.
Insider Transaction Report
Form 4
Tanguler Tolga
EVP, Chief Commercial Officer
Transactions
- Sale
Common Stock
[F1][F2]2026-03-04$319.03/sh−106$33,817→ 36,500 total - Sale
Common Stock
[F1][F3]2026-03-04$320.01/sh−102$32,641→ 36,398 total - Sale
Common Stock
[F1][F4]2026-03-04$320.81/sh−215$68,974→ 36,183 total - Sale
Common Stock
[F1][F5]2026-03-04$321.82/sh−289$93,006→ 35,894 total - Sale
Common Stock
[F1][F6]2026-03-04$323.01/sh−350$113,054→ 35,544 total - Sale
Common Stock
[F1][F7]2026-03-04$323.84/sh−767$248,385→ 34,777 total - Sale
Common Stock
[F1][F8]2026-03-04$324.88/sh−272$88,367→ 34,505 total - Sale
Common Stock
[F1][F9]2026-03-04$325.67/sh−208$67,739→ 34,297 total
Footnotes (9)
- [F1]Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement to cover minimum statutory tax withholding obligations upon the vesting of restricted stock units.
- [F2]The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $318.27 to $319.27. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.
- [F3]The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $319.28 to $320.28. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.
- [F4]The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $320.33 to $321.33. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.
- [F5]The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $321.34 to $322.31. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.
- [F6]The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $322.36 to $323.36. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.
- [F7]The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $323.38 to $324.35. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.
- [F8]The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $324.39 to $325.38. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.
- [F9]The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $325.40 to $326.21. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.
Signature
By: Brett Budzinski, Attorney-in-Fact For: Tolga Tanguler|2026-03-06