David E I Pyott insider trades: Alnylam Pharmaceuticals (ALNY) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where David reports to the SEC
and 2 more companies
Open-market buys and sales
31 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jun 1, 2026 | ALNY | ↓ Sell | 3,830 | $299.18 | $1.1M | Direct | Jun 3, 2026 (2d) |
| Mar 24, 2025 | ALNY | ↓ Sell | 7,440 | $299.00 | $2.2M | Direct | Mar 25, 2025 (1d) |
| Jun 24, 2024 | ALNY | ↓ Sell | 32,450 | $220.69 | $7.2M | Direct | Jun 26, 2024 (2d) |
| Aug 31, 2020 | BMRN | ↑ Buy | 12,800 | $78.26 | $1.0M | Direct | Sep 1, 2020 (1d) |
| Feb 3, 2020 | AVY | ↓ Sell | 5,027 | $132.72 | $667K | Direct | Feb 5, 2020 (2d) |
| Nov 27, 2018 | AVY | ↓ Sell | 2,000 | $93.00 | $186K | Direct | Nov 28, 2018 (1d) |
| Aug 30, 2017 | AVY | ↓ Sell | 2,000 | $94.00 | $188K | Direct | Aug 30, 2017 (0d) |
| Oct 13, 2016 | ALNY | ↑ Buy | 27,900 | $37.00 | $1.0M | by Trust | Oct 14, 2016 (1d) |
| Aug 8, 2016 | AVY | ↓ Sell | 2,000 | $78.61 | $157K | Direct | Aug 9, 2016 (1d) |
| Nov 2, 2015 | AVY | ↓ Sell | 2,000 | $64.88 | $130K | Direct | Nov 3, 2015 (1d) |
| Feb 12, 2014 | AGN | ↓ Sell | 252,000 | $123.12 | $31.0M | Direct | Feb 13, 2014 (1d) |
| May 1, 2013 | EW | ↑ Buy | 3,000 | $62.95 | $189K | Direct | May 1, 2013 (0d) |
| Oct 5, 2012 | AGN | ↓ Sell10b5-1 | 616,300 | $93.73 | $57.8M | By Living Trust | Oct 5, 2012 (0d) |
| Aug 6, 2012 | EW | ↓ Sell | 6,798 | $100.65 | $684K | Direct | Aug 8, 2012 (2d) |
| Jan 18, 2012 | EW | ↓ Sell | 20,000 | $76.95 | $1.5M | Direct | Jan 18, 2012 (0d) |
| Dec 22, 2011 | AGN | ↓ Sell10b5-1 | 566,754 | $86.02 | $48.8M | By Living Trust | Dec 22, 2011 (0d) |
| Dec 23, 2010 | AGN | ↓ Sell10b5-1 | 37,029 | $70.15 | $2.6M | By Living Trust | Dec 28, 2010 (5d) |
| Nov 19, 2010 | EW | ↓ Sell | 48,198 | $66.00 | $3.2M | Direct | Nov 19, 2010 (0d) |
| Nov 11, 2010 | EW | ↓ Sell | 7,126 | $65.33 | $466K | Direct | Nov 15, 2010 (4d) |
| Nov 5, 2010 | AGN | ↓ Sell | 667,229 | $73.01 | $48.7M | Direct | Nov 5, 2010 (0d) |
| Feb 18, 2010 | EW | ↓ Sell | 15,729 | $90.00 | $1.4M | Direct | Feb 22, 2010 (4d) |
| Nov 6, 2008 | AGN | ↑ Buy | 25,000 | $38.35 | $959K | By Living Trust | Nov 6, 2008 (0d) |
| Dec 7, 2007 | (AGN) | ↓ Sell10b5-1 | 449,666 | $67.51 | $30.4M | Direct | Dec 7, 2007 (0d) |
| Aug 8, 2007 | (AGN) | ↓ Sell10b5-1 | 268,604 | $64.96 | $17.4M | Direct | Aug 8, 2007 (0d) |
| Aug 3, 2007 | (AGN) | ↓ Sell10b5-1 | 233,792 | $63.71 | $14.9M | Direct | Aug 6, 2007 (3d) |
| Nov 20, 2006 | (AGN) | ↓ Sell10b5-1 | 58,128 | $120.00 | $7.0M | Direct | Nov 22, 2006 (2d) |
| Aug 16, 2006 | (AGN) | ↓ Sell | 18,274 | $111.63 | $2.0M | Direct | Aug 18, 2006 (2d) |
| Aug 15, 2006 | (AGN) | ↓ Sell | 24,600 | $110.77 | $2.7M | Direct | Aug 17, 2006 (2d) |
| Aug 15, 2006 | (AGN) | ↓ Sell | 20,100 | $110.05 | $2.2M | Direct | Aug 17, 2006 (2d) |
| Aug 15, 2006 | (AGN) | ↓ Sell | 15,300 | $110.46 | $1.7M | Direct | Aug 17, 2006 (2d) |
| Aug 14, 2006 | (AGN) | ↓ Sell | 60,000 | $110.00 | $6.6M | Direct | Aug 14, 2006 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other ALNY insiders
Open-market trades in the last 12 months
About David E I Pyott's insider trades
David E I Pyott is a director at Alnylam Pharmaceuticals (ALNY). Since Aug 14, 2006, David has reported 4 open-market purchases worth $3.2M and 27 sales worth $292.9M on SEC Form 4. In the last 12 months: 1 sale ($1.1M).
7 sales (61% of the value sold) were made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so they say little about how the insider sees the stock today.
Their filings also include grants and awards (103 filings), option exercises (41 filings), gifts (9 filings), shares withheld for taxes (7 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every ALNY insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.