Alkermes plc

Historical 13F Holders

Symbol
ALKS
CUSIP
G01767105
All holders as of
Q2 2026
Type
Equity
Class
SHS
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Every filing for G01767105 since 12/18/2024, newest first.

Filer % of Class Filed
Price T Rowe Associates Inc /MD/ 13G/A Amendment 2 2.8% 5/15/2026
Event 3/31/2026
Vanguard Portfolio Management LLC 13G 5.8% 4/28/2026
Event 3/31/2026
Vanguard Capital Management LLC 13G 5.2% 4/28/2026
Event 3/31/2026
Vanguard Group Inc 13G/A Amendment 16 0% 3/26/2026
Event 3/13/2026
Baker Bros. Advisors LP 13G
6.1% 2/17/2026
Event 12/31/2025
State Street Corp 13G 5.2% 11/10/2025
Event 9/30/2025
Price T Rowe Associates Inc /MD/ 13G/A Amendment 1 6.1% 8/14/2025
Event 6/30/2025
State Street Corp 13G 4.9% 5/13/2025
Event 3/31/2025
BlackRock, Inc. 13G/A Amendment 13 15.8% 4/28/2025
Event 3/31/2025
Wellington Management Group LLP 13G/A Amendment 2
4.3% 2/10/2025
Event 12/31/2024

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 24 174 k $7.06 M
2026 Q2 441 188 M $9.52 B
2026 Q1 409 177 M $6.22 B
2025 Q4 383 180 M $5.05 B
2025 Q3 374 174 M $5.20 B
2025 Q2 371 170 M $4.87 B
2025 Q1 391 173 M $5.70 B
2024 Q4 363 168 M $4.84 B
2024 Q3 352 180 M $5.02 B
2024 Q2 339 182 M $4.40 B
2024 Q1 356 181 M $4.89 B
2023 Q4 320 180 M $5.00 B
2023 Q3 333 164 M $4.59 B
2023 Q2 310 161 M $5.03 B
2023 Q1 288 162 M $4.56 B
2022 Q4 300 169 M $4.42 B
2022 Q3 295 161 M $3.58 B
2022 Q2 293 157 M $4.69 B
2022 Q1 267 158 M $4.17 B
2021 Q4 234 156 M $3.64 B
2021 Q3 241 153 M $4.72 B
2021 Q2 245 161 M $3.96 B
2021 Q1 220 158 M $2.95 B
2020 Q4 240 163 M $3.25 B
2020 Q3 203 165 M $2.73 B
2020 Q2 189 160 M $3.10 B
2020 Q1 214 156 M $2.26 B
2019 Q4 239 153 M $3.11 B
2019 Q3 219 151 M $2.94 B
2019 Q2 253 153 M $3.45 B
2019 Q1 242 154 M $5.61 B
2018 Q4 260 155 M $4.59 B
2018 Q3 291 160 M $6.78 B
2018 Q2 271 159 M $6.55 B
2018 Q1 288 160 M $9.30 B
2017 Q4 264 161 M $8.83 B
2017 Q3 258 153 M $7.79 B
2017 Q2 273 152 M $8.82 B
2017 Q1 276 150 M $8.80 B
2016 Q4 285 148 M $8.20 B
2016 Q3 279 146 M $6.84 B
2016 Q2 269 146 M $6.30 B
2016 Q1 266 146 M $4.99 B
2015 Q4 313 144 M $11.4 B
2015 Q3 287 149 M $8.75 B
2015 Q2 286 148 M $9.53 B
2015 Q1 275 145 M $8.86 B
2014 Q4 229 146 M $8.53 B
2014 Q3 215 141 M $6.06 B
2014 Q2 230 144 M $7.23 B
2014 Q1 232 138 M $6.06 B