Insider txns (12m)
24
Stock / equity
ALNY ALNYLAM PHARMACEUTICALS, INC.
- Security
- Equity
- Size, estimated from filings
- Large cap ($10B – $200B)
- Insiders on record
- 10
- Members of Congress
- 1
- Latest trade on record
- October 2, 2026
ALNY (ALNYLAM PHARMACEUTICALS, INC.) has 24 disclosed insider transactions from 10 insiders in the last 12 months (0 open-market buys, 6 sales, about $1.5M at reported prices) and 1 congressional trade from 1 member of Congress. The most recent disclosure was filed October 6, 2026.
Open-market buys / sales
0 / 6
Congress trades (12m)
1
Distinct filers (12m)
11
Share price
Price and chart by TradingView for ALNYLAM PHARMACEUTICALS, INC.. US share prices here are delayed, not real-time. The trade records on this page come from government filings, not from this chart.
ALNY in charts
Who is trading this stock
Which people account for the buying and selling over the last 12 months?
BoughtSold
3 people account for the disclosed buying and selling in ALNY over the last 12 months; the most active is PYOTT DAVID E I with $1.1M.
Prices insiders traded at
What price did insiders buy and sell at? Each marker is one open-market trade at the share price reported on its Form 4.
▲ Bought▼ SoldAverage reported price that day
Insiders reported 6 open-market trades in ALNY since Jun 1, 2026, at prices from $227 to $303; the most recent was a sale at $227 on Oct 2, 2026. These are the prices on the filings, not adjusted for stock splits, and not a market price series.
Insider holdings over time
Is an insider building or unwinding a position? Shares held directly after each filing.
PYOTT DAVID E I
PYOTT DAVID E I reported 1,582 shares held after the latest filing, against 1,582 at the first on record.
Lobbying spend by quarter
How much has ALNYLAM PHARMACEUTICALS, INC. reported spending on federal lobbying?
ALNYLAM PHARMACEUTICALS, INC. reported $2.9M in lobbying over the last eight quarters, from filings matched by exact company name.
Insiders trading ALNY
Everyone who filed a Form 4 for this ticker, by number of rows on record. "Bought" and "sold" count open-market purchases (code P) and sales only; awards, option exercises and shares withheld for tax are in the row count but not in those two columns.
| Insider | Role | Rows | Bought | Sold | Value bought | Value sold | Latest |
|---|---|---|---|---|---|---|---|
| PYOTT DAVID E I | Director | 9 | 0 | 5 | — | $1.1M | June 1, 2026 |
| BRANDICOURT OLIVIER | Director | 2 | 0 | 0 | — | — | May 20, 2026 |
| HAMBURG MARGARET A | Director | 2 | 0 | 0 | — | — | May 20, 2026 |
| KELLOGG PETER N | Director | 2 | 0 | 0 | — | — | May 20, 2026 |
| Reitan Colleen F | Director | 2 | 0 | 0 | — | — | May 20, 2026 |
| SCHULMAN AMY W | Director | 2 | 0 | 0 | — | — | May 20, 2026 |
| Sigal Charles Elliott | Director | 2 | 0 | 0 | — | — | May 20, 2026 |
| SUPRAN BRYAN | EVP, CLO and Secretary | 1 | 0 | 1 | — | $399K | October 2, 2026 |
| Greenstreet Yvonne | Chief Executive Officer | 1 | 0 | 0 | — | — | September 19, 2026 |
| Cravatt Benjamin | Director | 1 | 0 | 0 | — | — | June 1, 2026 |
What kind of transactions these are 3 Form 4 codes
| Code | Meaning | Rows | Shares | Value at reported prices |
|---|---|---|---|---|
| A | Grant or award | 16 | 19,812 | — |
| S | Open-market sale | 6 | 5,588 | $1.5M |
| M | Option exercise or conversion | 2 | 7,660 | — |
What each code means: Form 4 transaction codes.
Members of Congress trading ALNY
Members whose periodic transaction reports name this ticker. Amounts are the sums of the ranges as filed.
| Member | Seat | Trades | Bought | Sold | Range as filed | Latest |
|---|---|---|---|---|---|---|
| Cory A. Booker | Senator (NJ), Democrat | 1 | 0 | 1 | $1,001–$15K | August 11, 2026 |
Insider transactions
| Filer | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| SUPRAN BRYAN | Sell S | October 2, 2026 | October 6, 2026 | 4d | 1,758 | $227 | $399K | Form 4 ↗ | ||
| Greenstreet Yvonne | Other A | September 19, 2026 | September 22, 2026 | 3d | 107 | — | — | Form 4 ↗ | ||
| Cravatt Benjamin | Other A | June 1, 2026 | June 3, 2026 | 2d | 4,393 | — | — | derivative | Form 4 ↗ | |
| PYOTT DAVID E I | Option / conversion M | June 1, 2026 | June 3, 2026 | 2d | 3,830 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| PYOTT DAVID E I | Sell S | June 1, 2026 | June 3, 2026 | 2d | 17 | $303 | $5,145 | 10b5-1 plan | Form 4 ↗ | |
| PYOTT DAVID E I | Sell S | June 1, 2026 | June 3, 2026 | 2d | 495 | $301 | $149K | 10b5-1 plan | Form 4 ↗ | |
| PYOTT DAVID E I | Sell S | June 1, 2026 | June 3, 2026 | 2d | 1,222 | $300 | $366K | 10b5-1 plan | Form 4 ↗ | |
| PYOTT DAVID E I | Sell S | June 1, 2026 | June 3, 2026 | 2d | 1,175 | $299 | $351K | 10b5-1 plan | Form 4 ↗ | |
| PYOTT DAVID E I | Sell S | June 1, 2026 | June 3, 2026 | 2d | 921 | $298 | $274K | 10b5-1 plan | Form 4 ↗ | |
| PYOTT DAVID E I | Option / conversion M | June 1, 2026 | June 3, 2026 | 2d | 3,830 | — | — | 10b5-1 plan | Form 4 ↗ | |
| BRANDICOURT OLIVIER | Other A | May 20, 2026 | May 22, 2026 | 2d | 1,441 | — | — | derivative | Form 4 ↗ | |
| BRANDICOURT OLIVIER | Other A | May 20, 2026 | May 22, 2026 | 2d | 671 | — | — | Form 4 ↗ | ||
| HAMBURG MARGARET A | Other A | May 20, 2026 | May 22, 2026 | 2d | 1,441 | — | — | derivative | Form 4 ↗ | |
| HAMBURG MARGARET A | Other A | May 20, 2026 | May 22, 2026 | 2d | 671 | — | — | Form 4 ↗ | ||
| KELLOGG PETER N | Other A | May 20, 2026 | May 22, 2026 | 2d | 1,441 | — | — | derivative | Form 4 ↗ | |
| KELLOGG PETER N | Other A | May 20, 2026 | May 22, 2026 | 2d | 671 | — | — | Form 4 ↗ | ||
| PYOTT DAVID E I | Other A | May 20, 2026 | May 22, 2026 | 2d | 1,441 | — | — | derivative | Form 4 ↗ | |
| PYOTT DAVID E I | Other A | May 20, 2026 | May 22, 2026 | 2d | 671 | — | — | Form 4 ↗ | ||
| Reitan Colleen F | Other A | May 20, 2026 | May 22, 2026 | 2d | 1,441 | — | — | derivative | Form 4 ↗ | |
| Reitan Colleen F | Other A | May 20, 2026 | May 22, 2026 | 2d | 671 | — | — | Form 4 ↗ | ||
| SCHULMAN AMY W | Other A | May 20, 2026 | May 22, 2026 | 2d | 1,802 | — | — | derivative | Form 4 ↗ | |
| SCHULMAN AMY W | Other A | May 20, 2026 | May 22, 2026 | 2d | 838 | — | — | Form 4 ↗ | ||
| Sigal Charles Elliott | Other A | May 20, 2026 | May 22, 2026 | 2d | 1,441 | — | — | derivative | Form 4 ↗ | |
| Sigal Charles Elliott | Other A | May 20, 2026 | May 22, 2026 | 2d | 671 | — | — | Form 4 ↗ |
Congressional trades
| Filer | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| Cory A. Booker | Sell | August 11, 2026 | September 9, 2026 | 29d | — | — | $1,001–$15K | spouse | Senate PTR ↗ |
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Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- How to read a congressional trade report Owner tells you whose asset it was: the member, the spouse, a dependent child, or held jointly.
- Why congressional trade amounts are ranges There are ten ranges; the lowest is $1,001–$15,000 and the highest is over $50,000,000.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| Senate eFD, periodic transaction reports | 1 | 1 | September 9, 2026 | September 9, 2026 | Senate eFD search |
| SEC EDGAR, Form 4 | 11 | 24 | May 22, 2026 | October 6, 2026 | Form 4 list on EDGAR |
Site built October 22, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Insider rows are Form 4 filings for this issuer from SEC EDGAR; congressional rows are periodic transaction reports parsed from the House Clerk and the Senate eFD. Values use the reported price for Form 4 and the disclosed range for Congress. See methodology and corrections.
Not investment advice. Disclosures are shown as filed and may lag the trade or be amended. No recommendation is made or implied.