ALKS
Alkermes (ALKS)
NASDAQ
$44.02-$0.16 (-0.36%)
Price as of Oct 22, 2026 7:30 PM EDT
  • $7.2B
    Market Cap
  • 47.07%
    1-Year Change
  • Drug Manufacturers - Specialty & Generic
    Industry

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

Current Ownership Distribution

  • Institutions3.2B (79.34%)
  • Mutual Funds832.0M (20.43%)
  • Insiders9.4M (0.23%)
  • Other0 (0.00%)

Insider Transactions

  • 0.23% (9.4M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 5
    Number of InsiderSelling (last 12 months)
  • $42.3M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Reed Joshua
SVP, Chief Financial Officer
Exempt
Oct 08, 2026
$0.00
9,164
$0.00
27,492
Reed Joshua
SVP, Chief Financial Officer
Exempt
Oct 08, 2026
$0.00
9,164
$0.00
9,164
Reed Joshua
SVP, Chief Financial Officer
In Kind
Oct 08, 2026
$163,207.59
4,069
$40.11
5,095
Whitaker Anne Clem
Award
Oct 07, 2026
$0.00
7,239
$0.00
7,239
Whitaker Anne Clem
Award
Oct 07, 2026
$0.00
17,998
$0.00
17,998
Gaffin David Joseph
EVP, CLO, Alkermes, Inc.
Sell
Oct 02, 2026
$83,455.02
2,034
$41.03
221,388
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