David Joseph Gaffin insider trades: Alkermes (ALKS) stock 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
Open-market buys and sales
16 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Nov 3, 2026 | ALKS | ↓ Sell | 2,035 | $46.17 | $94K | Direct | Nov 3, 2026 (0d) |
| Oct 2, 2026 | ALKS | ↓ Sell | 2,034 | $41.03 | $83K | Direct | Oct 2, 2026 (0d) |
| Sep 3, 2026 | ALKS | ↓ Sell | 2,034 | $48.01 | $98K | Direct | Sep 3, 2026 (0d) |
| Aug 3, 2026 | ALKS | ↓ Sell | 2,034 | $48.58 | $99K | Direct | Aug 3, 2026 (0d) |
| Jul 6, 2026 | ALKS | ↓ Sell | 2,034 | $54.03 | $110K | Direct | Jul 6, 2026 (0d) |
| Jun 4, 2026 | ALKS | ↓ Sell | 2,034 | $43.05 | $88K | Direct | Jun 4, 2026 (0d) |
| May 4, 2026 | ALKS | ↓ Sell | 2,034 | $33.20 | $68K | Direct | May 4, 2026 (0d) |
| Apr 6, 2026 | ALKS | ↓ Sell | 2,034 | $34.57 | $70K | Direct | Apr 6, 2026 (0d) |
| Mar 3, 2026 | ALKS | ↓ Sell | 4,068 | $29.53 | $120K | Direct | Mar 4, 2026 (1d) |
| Jul 29, 2021 | ALKS | ↓ Sell | 14,000 | $26.00 | $364K | Direct | Jul 30, 2021 (1d) |
| Jun 10, 2021 | ALKS | ↓ Sell | 13,500 | $25.00 | $338K | Direct | Jun 11, 2021 (1d) |
| Jun 7, 2021 | ALKS | ↓ Sell | 13,500 | $24.00 | $324K | Direct | Jun 8, 2021 (1d) |
| May 14, 2021 | ALKS | ↓ Sell | 2,250 | $22.23 | $50K | Direct | May 14, 2021 (0d) |
| May 9, 2019 | ALKS | ↓ Sell | 5,373 | $26.89 | $144K | Direct | May 13, 2019 (4d) |
| Jan 3, 2017 | ALKS | ↓ Sell | 2,500 | $55.40 | $139K | Direct | Jan 4, 2017 (1d) |
| Sep 6, 2016 | ALKS | ↓ Sell | 2,382 | $45.92 | $109K | Direct | Sep 7, 2016 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other ALKS insiders
Open-market trades in the last 12 months
About David Joseph Gaffin's insider trades
David Joseph Gaffin is EVP, CLO, Alkermes, Inc. at Alkermes (ALKS). Since Sep 6, 2016, David has reported no open-market purchases and 16 sales worth $2.3M on SEC Form 4. In the last 12 months: 9 sales ($829K).
Their filings also include option exercises (43 filings), shares withheld for taxes (37 filings), grants and awards (17 filings), other transactions (1 filing). 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 ALKS insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.