| $385M | ||
| $350M | ||
| $215M | ||
| $94M | ||
| $82M | ||
| $62M |
Buys | $0 | 0 | 0 |
Sells | $16,587,601 | 14 | 100 |
| Nichols Christian Todd | SVP, Chief Commercial Officer | 0 | $0 | 2 | $210,143 | $-210,143 |
| Parisi Samuel Joseph | VP, Finance (Interim PAO) | 0 | $0 | 3 | $245,231 | $-245,231 |
| Hopkinson Craig C. | EVP R&D, Chief Medical Officer | 0 | $0 | 9 | $16.13M | $-16.13M |
Alkermes plc, a biopharmaceutical company, researches, develops, and commercializes pharmaceutical products to address unmet medical needs of patients in various therapeutic areas in the United States, Ireland, and internationally. Its marketed products include ARISTADA, an intramuscular injectable suspension for the treatment of schizophrenia; VIVITROL for the treatment of alcohol and prevention of opioid dependence; RISPERDAL CONSTA for the treatment of schizophrenia and bipolar I disorder; INVEGA SUSTENNA for the treatment of schizophrenia and schizoaffective disorder; XEPLION, INVEGA TRINZA, and TREVICTA to treat schizophrenia and schizoaffective; and VUMERITY for the treatment of relapsing forms of multiple sclerosis in adults, including clinically isolated syndrome, relapsing-remitting and active secondary progressive diseases. The company is also developing LYBALVI, an oral atypical antipsychotic drug candidate for the treatment of adults with schizophrenia and bipolar I disorder; and nemvaleukin alfa, an engineered fusion protein to expand tumor-killing immune cells and to avoid the activation of immunosuppressive cells. It has collaboration agreements primarily with Janssen Pharmaceutica N.V., Janssen Pharmaceutica Inc, and Janssen Pharmaceutica International. Alkermes plc was founded in 1987 and is headquartered in Dublin, Ireland.
Over the last 12 months, insiders at Alkermes plc have bought $0 and sold $16.59M worth of Alkermes plc stock.
On average, over the past 5 years, insiders at Alkermes plc have bought $569,934 and sold $12.44M worth of stock each year.
There was no buying activity among insiders over the last 12 months.
The last purchase of 35,000 shares for transaction amount of $815,735 was made by Daglio David Angelo Jr. (director) on 2022‑11‑14.
| 2026-01-08 | Sale | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | 5,000 0.0031% | $30.00 | $150,005 | -0.32% | |
| 2026-01-02 | Sale | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | 4,000 0.0024% | $28.00 | $112,000 | +5.09% | |
| 2025-12-03 | Sale | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | 3,748 0.0023% | $30.00 | $112,447 | -3.25% | |
| 2025-12-01 | Sale | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | 4,000 0.0025% | $29.30 | $117,200 | -0.95% | |
| 2025-11-03 | Sale | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | 9,000 0.0054% | $30.38 | $273,442 | -3.75% | |
| 2025-10-15 | Sale | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | 9,000 0.0053% | $31.53 | $283,776 | -8.58% | |
| 2025-06-10 | Sale | Nichols Christian Todd | SVP, Chief Commercial Officer | 3,334 0.002% | $31.09 | $103,654 | -6.50% | |
| 2025-06-09 | Sale | Nichols Christian Todd | SVP, Chief Commercial Officer | 3,333 0.0021% | $31.95 | $106,489 | -6.74% | |
| 2025-02-28 | Sale | Parisi Samuel Joseph | VP, Finance (Interim PAO) | 1,938 0.0012% | $34.00 | $65,892 | -14.39% | |
| 2025-02-25 | Sale | Parisi Samuel Joseph | VP, Finance (Interim PAO) | 3,743 0.0023% | $35.26 | $131,978 | -15.80% | |
| 2025-02-20 | Sale | Parisi Samuel Joseph | VP, Finance (Interim PAO) | 1,327 0.0008% | $35.69 | $47,361 | -17.03% | |
| 2025-02-13 | Sale | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | 144,419 0.0947% | $35.53 | $5.13M | -17.99% | |
| 2025-02-12 | Sale | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | 204,921 0.1299% | $32.78 | $6.72M | -11.85% | |
| 2025-01-30 | Sale | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | 100,918 0.0633% | $32.05 | $3.23M | -7.11% | |
| 2024-12-09 | Sale | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | 61,151 0.0384% | $32.07 | $1.96M | -4.50% | |
| 2024-12-09 | Sale | LAURENCIN CATO T | director | 2,691 0.0017% | $31.85 | $85,708 | -4.50% | |
| 2024-12-05 | Sale | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | 9,221 0.0058% | $31.50 | $290,462 | -3.96% | |
| 2024-12-04 | Sale | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | 14,349 0.0088% | $30.77 | $441,550 | -3.49% | |
| 2024-11-27 | Sale | Nichols Christian Todd | SVP, Chief Commercial Officer | 5,208 0.0032% | $29.15 | $151,813 | +2.32% | |
| 2024-11-11 | Sale | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | 58,996 0.0363% | $30.08 | $1.77M | -0.42% |
| Nichols Christian Todd | SVP, Chief Commercial Officer | 86208 0.0522% | $2.73M | 0 | 6 | |
| Hopkinson Craig C. | EVP R&D, Chief Medical Officer | 61740 0.0374% | $1.95M | 0 | 18 | |
| Parisi Samuel Joseph | VP, Finance (Interim PAO) | 7717 0.0047% | $244,088.71 | 0 | 4 | |
| ELAN CORP PLC | 10 percent owner | 7750000 4.6936% | $245.13M | 0 | 1 | |
| POPS RICHARD F | Director and CEO, Alkermes plc | 968299 0.5864% | $30.63M | 0 | 69 | |
| LANDINE MICHAEL J | SVP, Corp Dev., Alkermes, Inc. | 232306 0.1407% | $7.35M | 0 | 51 | |
| BLOOM FLOYD E | director | 127923 0.0775% | $4.05M | 1 | 13 | +9.38% |
| Cooke Shane | 90478 0.0548% | $2.86M | 0 | 33 | ||
| Jackson Blair Curtis | EVP, Chief Operating Officer | 87915 0.0532% | $2.78M | 0 | 2 | |
| Daglio David Angelo Jr. | director | 80000 0.0485% | $2.53M | 1 | 0 | +23.43% |
| Gaffin David Joseph | SVP, CLO, Alkermes, Inc. | 74597 0.0452% | $2.36M | 0 | 7 | |
| ANSTICE DAVID W | director | 73081 0.0443% | $2.31M | 1 | 4 | +44.33% |
| BIBERSTEIN KATHRYN L | EVP/CAO/CCO Alks Inc; Sec ALKS | 56889 0.0345% | $1.8M | 0 | 16 | |
| Ehrich Elliot | EVP, R&D & CMO, Alkermes, Inc. | 55071 0.0334% | $1.74M | 0 | 56 | |
| Stejbach Mark | SVP/Chief Comm Off, Alks Inc | 44013 0.0267% | $1.39M | 1 | 9 | +46.24% |
| Brown Iain Michael | SVP, Chief Financial Officer | 42980 0.026% | $1.36M | 0 | 8 | |
| DIXON WENDY L | director | 41300 0.025% | $1.31M | 1 | 2 | +1.23% |
| FRATES JAMES M | SVP, Alks Inc; CFO ALKS | 37234 0.0226% | $1.18M | 0 | 74 | |
| LAURENCIN CATO T | director | 23013 0.0139% | $727,901.19 | 0 | 4 | |
| Pugh Gordon G | SVP, COO & CRO, Alkermes, Inc. | 20587 0.0125% | $651,166.81 | 0 | 36 | |
| Wysenski Nancy | director | 15829 0.0096% | $500,671.27 | 3 | 1 | <0.0001% |
| MCKEON BRIAN P | director | 10000 0.0061% | $316,300.00 | 1 | 0 | +4.55% |
| snyderman nancy lynn MD | 9366 0.0057% | $296,246.58 | 1 | 0 | +14% | |
| BREYER ROBERT A | director | 7156 0.0043% | $226,344.28 | 0 | 47 | |
| MITCHELL PAUL J | director | 7000 0.0042% | $221,410.00 | 0 | 64 | |
| Botkin James L | SVP, Alkermes Gainesville LLC | 2509 0.0015% | $79,359.67 | 0 | 4 | |
| Alva Emily Peterson | director | 1650 0.001% | $52,194.72 | 1 | 0 | <0.0001% |
| HENWOOD GERALDINE | director | 0 0% | $0 | 0 | 6 | |
| Peterson Rebecca | SVP, Corporate Communications | 0 0% | $0 | 0 | 30 |
$193,151,375 | 134 | 8.18% | $4.43B | |
$224,382,625 | 44 | 27.62% | $4.71B | |
$477,065,869 | 34 | 82.05% | $5.29B | |
$103,944,213 | 17 | 5.95% | $6.78B | |
$74,605,681 | 14 | 47.06% | $5.1B | |
$75,296,863 | 13 | 33.79% | $5.49B | |
$57,686,748 | 13 | 21.11% | $5.82B | |
$91,269,919 | 12 | 12.86% | $5.74B | |
$9,976,473 | 12 | 29.52% | $6.71B | |
Alkermes plc (ALKS) | $2,477,801 | 11 | 4.98% | $5.22B |
$35,908,794 | 10 | 126.31% | $5.13B | |
$3,073,199 | 10 | 16.77% | $4.95B | |
$20,499,451 | 9 | 71.54% | $5.92B | |
$25,064,843 | 9 | 12.75% | $4.59B | |
$55,713,031 | 8 | -0.36% | $5.44B | |
$2,246,813 | 6 | 70.15% | $4.85B | |
$41,376,000 | 4 | -12.07% | $6.1B | |
$50,990,767 | 2 | 19.79% | $4.43B | |
$7,600,000 | 1 | -4.05% | $4.41B |
| Increased Positions | 195 | +51.72% | 16M | +9.73% |
| Decreased Positions | 173 | -45.89% | 15M | -8.65% |
| New Positions | 44 | New | 3M | New |
| Sold Out Positions | 37 | Sold Out | 1M | Sold Out |
| Total Postitions | 399 | +5.84% | 171M | +1.08% |
| Blackrock, Inc. | $790,491.00 | 16.95% | 27.97M | +115,915 | +0.42% | 2025-09-30 |
| Vanguard Group Inc | $513,753.00 | 11.02% | 18.18M | -323,563 | -1.75% | 2025-09-30 |
| Price T Rowe Associates Inc /Md/ | $289,336.00 | 6.21% | 10.24M | +196,457 | +1.96% | 2025-09-30 |
| State Street Corp | $241,350.00 | 5.18% | 8.54M | +332,095 | +4.05% | 2025-09-30 |
| Baker Bros. Advisors Lp | $228,662.00 | 4.9% | 8.09M | +2M | +26.22% | 2025-09-30 |
| Renaissance Technologies Llc | $177,827.00 | 3.81% | 6.29M | +482,368 | +8.3% | 2025-09-30 |
| American Century Companies Inc | $124,273.00 | 2.67% | 4.4M | +740,248 | +20.24% | 2025-09-30 |
| Geode Capital Management, Llc | $114,775.00 | 2.46% | 4.06M | +37,842 | +0.94% | 2025-09-30 |
| Jpmorgan Chase & Co | $111,010.00 | 2.38% | 3.93M | -908,124 | -18.78% | 2025-09-30 |
| Dimensional Fund Advisors Lp | $104,505.00 | 2.24% | 3.7M | +601,359 | +19.42% | 2025-09-30 |