Bryan Supran Insider Trades & Stock Holdings

EVP, CLO and Secretary · Alnylam Pharmaceuticals, Inc. · Latest filing Oct 2, 2026

Bryan Supran, EVP, CLO and Secretary at Alnylam Pharmaceuticals, Inc. has 1 Form 4 trade on file since Oct 2, 2026. Open-market activity: 0 purchases ($0) and 1 sale ($398.86K), net -$398.86K. Latest filing: disposed of 1.76K shares of $ALNY on Oct 2, 2026 at $226.88.

Trades on file

1

Open-market bought

$0

Open-market sold

$398.86K

Net open-market

-$398.86K

Latest filing

Oct 2, 2026

All insider trades by Bryan Supran

Date	Ticker	Type	Shares	Price	Value	Owned after	ΔOwn	1W	1M	6M	Role	Filing	Story
Oct 2, 2026	$ALNY	Sell (Open-market sale)	1.76K	$226.88	$398.86K			+5.9%			EVP, CLO and Secretary		—

"Buy" means shares acquired on the Form 4 (including grants and option exercises); "Sell" means shares disposed. 1W / 1M / 6M = how the stock moved after the trade.

Stocks Bryan Supran traded

• $ALNY

Frequently asked questions

Has Bryan Supran been buying or selling stock?

Bryan Supran has 0 open-market purchases and 1 open-market sale on file, net -$398.86K. Grants, option exercises and tax withholding are listed separately because they are not open-market trades.

What was Bryan Supran's latest insider trade?

disposed of 1.76K shares of $ALNY on Oct 2, 2026 at $226.88.

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.