Alkermes plc

Historical 13F Holders

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

13D/G Filers

Each filer's latest filing for G01767105 since 12/18/2024, largest first.

Filer % of Class Filed
BlackRock, Inc. 13G/A 15.8% 4/28/2025
Event 3/31/2025
Baker Bros. Advisors LP 13G
6.1% 2/17/2026
Event 12/31/2025
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
State Street Corp 13G 5.2% 11/10/2025
Event 9/30/2025
Under 5%, checked the "5 percent or less" box, or amended by a later filing (3)
Wellington Management Group LLP 13G/A
4.3% 2/10/2025
Event 12/31/2024
Price T Rowe Associates Inc /MD/ 13G/A 2.8% 5/15/2026
Event 3/31/2026
Vanguard Group Inc 13G/A 0% 3/26/2026
Event 3/13/2026

13F Holders by Quarter

Period Filers Shares, Excl. Options Value, Excl. Options
2026 Q3 199 23.9 M $968M
2026 Q2 428 178 M $9.33B
2026 Q1 394 177 M $6.21B
2025 Q4 370 180 M $5.05B
2025 Q3 364 170 M $5.08B
2025 Q2 359 169 M $4.84B
2025 Q1 375 172 M $5.69B
2024 Q4 346 167 M $4.81B
2024 Q3 340 179 M $5.00B
2024 Q2 325 179 M $4.32B
2024 Q1 339 176 M $4.77B
2023 Q4 306 175 M $4.87B
2023 Q3 310 164 M $4.59B
2023 Q2 294 161 M $5.03B
2023 Q1 273 162 M $4.56B
2022 Q4 281 162 M $4.24B
2022 Q3 278 160 M $3.57B
2022 Q2 280 157 M $4.67B
2022 Q1 250 158 M $4.15B
2021 Q4 222 156 M $3.63B
2021 Q3 226 152 M $4.70B
2021 Q2 231 161 M $3.95B
2021 Q1 203 158 M $2.95B
2020 Q4 218 162 M $3.22B
2020 Q3 190 158 M $2.61B
2020 Q2 175 160 M $3.10B
2020 Q1 199 156 M $2.26B
2019 Q4 220 151 M $3.07B
2019 Q3 203 151 M $2.94B
2019 Q2 227 152 M $3.42B
2019 Q1 224 154 M $5.61B
2018 Q4 242 154 M $4.54B
2018 Q3 269 158 M $6.72B
2018 Q2 249 159 M $6.55B
2018 Q1 272 160 M $9.27B
2017 Q4 251 161 M $8.83B
2017 Q3 245 153 M $7.79B
2017 Q2 259 152 M $8.82B
2017 Q1 263 150 M $8.80B
2016 Q4 269 147 M $8.20B
2016 Q3 260 145 M $6.83B
2016 Q2 247 145 M $6.26B
2016 Q1 243 146 M $4.99B
2015 Q4 292 143 M $11.3B
2015 Q3 268 148 M $8.69B
2015 Q2 271 148 M $9.53B
2015 Q1 265 145 M $8.86B
2014 Q4 219 144 M $8.47B
2014 Q3 204 141 M $6.05B
2014 Q2 214 141 M $7.10B
2014 Q1 217 138 M $6.06B