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Alkermes (ALKS)
NASDAQ
$48.34+$0.005 (+0.01%)
Price as of Aug 21, 2026 7:50 PM EDT- $8.0BMarket Cap
- 62.45%1-Year Change
- Drug Manufacturers - Specialty & GenericIndustry
Alkermes (ALKS)
$48.34+$0.005 (+0.01%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
BLACKROCK, INC. | 17.43% | 29.2M | +921,329 (+3.15%) | Jun 30, 2026 |
BLACKROCK INC. | 17.35% | 29.1M | -60,933 (-0.21%) | Jun 30, 2024 |
BLACKROCK FUNDING, INC. /DE | 16.60% | 27.9M | -425,529 (-1.53%) | Dec 31, 2024 |
VANGUARD GROUP INC | 10.73% | 18.0M | -172,147 (-0.96%) | Dec 31, 2025 |
WELLINGTON MANAGEMENT CO LLP | 7.04% | 11.8M | 0 (0.00%) | Dec 31, 2021 |
BAKER BROS. ADVISORS LP | 5.97% | 10.0M | 0 (0.00%) | Jun 30, 2026 |
N/A | 5.66% | 9.5M | -20,294 (-0.21%) | Jun 30, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD INDEX FUNDS | 7.82% | 13.1M | +242,831 (+1.85%) | Mar 31, 2026 |
FIDELITY ADVISOR SERIES I | 5.83% | 9.8M | 0 (0.00%) | Apr 30, 2026 |
SPDR SERIES TRUST | 3.30% | 5.5M | 0 (0.00%) | Apr 30, 2026 |
Pacer Funds Trust | 2.70% | 4.5M | 0 (0.00%) | Jul 31, 2024 |
AIM COUNSELOR SERIES TRUST (INVESCO COUNSELOR SERIES TRUST) | 2.40% | 4.0M | 0 (0.00%) | May 31, 2026 |
AMERICAN CENTURY ETF TRUST | 2.22% | 3.7M | -1.5M (-39.09%) | May 31, 2026 |
T. Rowe Price Mid-Cap Growth Fund, Inc. | 1.34% | 2.2M | 0 (0.00%) | Mar 31, 2026 |
Current Ownership Distribution
- Institutions3.2B (80.86%)
- Mutual Funds755.0M (18.90%)
- Insiders9.4M (0.24%)
- Other0 (0.00%)
Insider Transactions
- 0.24% (9.4M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 5Number of InsiderSelling (last 12 months)
- $33.3MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Nichols Christian Todd SVP, Chief Commercial Officer | Sell | Aug 17, 2026 | $339,967.41 | 6,912 | $49.19 | 102,857 |
Nichols Christian Todd SVP, Chief Commercial Officer | Sell | Aug 17, 2026 | $32,969.33 | 664 | $49.65 | 102,193 |
Jackson Blair Curtis President & CEO, Alkermes plc | Award | Aug 05, 2026 | $0.00 | 93,229 | $0.00 | 93,229 |
Jackson Blair Curtis President & CEO, Alkermes plc | Award | Aug 05, 2026 | $0.00 | 124,305 | $0.00 | 124,305 |
Hopkinson Craig C. EVP R&D, Chief Medical Officer | Exempt | Aug 03, 2026 | $0.00 | 104 | $0.00 | 1,252 |
Gaffin David Joseph EVP, CLO, Alkermes, Inc. | Sell | Aug 03, 2026 | $98,811.72 | 2,034 | $48.58 | 225,456 |
snyderman nancy lynn MD | Exempt | Aug 03, 2026 | $0.00 | 27,948 | $0.00 | 0 |
Hopkinson Craig C. EVP R&D, Chief Medical Officer | Exempt | Aug 03, 2026 | $0.00 | 4,896 | $0.00 | 66,276 |
snyderman nancy lynn MD | Exempt | Aug 03, 2026 | $0.00 | 16,524 | $0.00 | 0 |
Hopkinson Craig C. EVP R&D, Chief Medical Officer | Exempt | Aug 03, 2026 | $2,011.36 | 104 | $19.34 | 73,493 |
snyderman nancy lynn MD | Exempt | Aug 03, 2026 | $1.3M | 27,948 | $46.72 | 43,343 |
Hopkinson Craig C. EVP R&D, Chief Medical Officer | Exempt | Aug 03, 2026 | $120,392.64 | 4,896 | $24.59 | 78,389 |
snyderman nancy lynn MD | Exempt | Aug 03, 2026 | $772,001.28 | 16,524 | $46.72 | 59,867 |
Hopkinson Craig C. EVP R&D, Chief Medical Officer | Sell | Aug 03, 2026 | $437,220.00 | 9,000 | $48.58 | 69,389 |
snyderman nancy lynn MD | Sell | Aug 03, 2026 | $2.2M | 44,472 | $50.35 | 15,395 |
Hopkinson Craig C. EVP R&D, Chief Medical Officer | Exempt | Jul 01, 2026 | $0.00 | 5,000 | $0.00 | 1,356 |
Hopkinson Craig C. EVP R&D, Chief Medical Officer | Exempt | Jul 01, 2026 | $96,700.00 | 5,000 | $19.34 | 82,389 |
Hopkinson Craig C. EVP R&D, Chief Medical Officer | Sell | Jul 01, 2026 | $427,128.79 | 8,300 | $51.46 | 74,089 |
Hopkinson Craig C. EVP R&D, Chief Medical Officer | Sell | Jul 01, 2026 | $36,491.98 | 700 | $52.13 | 73,389 |
Wright Christopher I | Sell | Jun 12, 2026 | $90,200.00 | 2,000 | $45.10 | 25,680 |