ISSUER PROFILE · CIK 0001520262
Alkermes plc.ALKS
8 13D/G filings
2 distinct filers
3 insider transactions (365d)
Cross-Reference Snapshot
Distinct filers
2
multi-activist cluster
Insiders (365d)
3
2 buys · 1 sales
Latest short DTC
8.45
as of 2026-05-29
13D/G Filings Timeline · 8 total
Form 4 Insider Transactions · last 365d
| Date | Insider | Role | Type | Shares | Price | Value |
|---|
| 2026-05-20 |
GAYNOR RICHARD |
director |
Award |
11,538 |
$36.98 |
$427K |
| 2026-05-20 |
Cooke Shane |
director |
Award |
11,538 |
$36.98 |
$427K |
| 2026-04-06 |
Gaffin David Joseph |
officer |
Sale |
2,034 |
$34.57 |
$70K |
FINRA Short Interest History
| Settlement | Short Interest | Days to Cover | % Δ vs prior |
|---|
| 2026-05-29 |
17,355,226 |
8.45 |
-5.0% |
| 2026-05-15 |
18,277,684 |
7.55 |
-7.5% |
| 2026-04-30 |
19,760,435 |
12.55 |
+0.4% |
| 2026-04-15 |
19,684,219 |
8.17 |
+3.5% |
| 2026-03-31 |
19,013,418 |
5.86 |
-7.7% |
| 2026-03-13 |
20,600,815 |
9.43 |
+13.2% |
| 2026-02-27 |
18,196,226 |
9.21 |
+2.1% |
| 2026-02-13 |
17,817,507 |
11.70 |
-6.2% |
| 2026-01-30 |
18,996,649 |
7.83 |
-12.3% |
| 2026-01-15 |
21,666,003 |
10.45 |
-0.8% |
| 2025-12-31 |
21,843,844 |
14.40 |
+9.0% |
| 2025-12-15 |
20,033,904 |
11.59 |
+6.4% |
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