WALTHAM, MA
REPLIGEN CORPRGEN— Latest position per institution from SEC 13F filings
15
Institutional holders
47.71M
Total shares held
6.18B
Estimated value
2.39M
Avg. position size
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
7.57M
Value
954.08M
Filed
Jun 30, 2024
BLACKROCK, INC.
CIK 2012383
Shares
5.38M
Value
734.72M
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
4.99M
Value
818.31M
Filed
Dec 31, 2025
FMR LLC
CIK 315066
Shares
3.33M
Value
453.89M
Filed
Jun 30, 2026
UNITED CAPITAL FINANCIAL ADVISORS, LLC
CIK 1463217
Shares
2.79M
Value
380.76M
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
2.41M
Value
328.98M
Filed
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
2.31M
Value
315.56M
Filed
Jun 30, 2026
MAVERICK CAPITAL LTD
CIK 934639
Shares
1.98M
Value
270.77M
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
1.80M
Value
245.68M
Filed
Jun 30, 2026
PRICE T ROWE ASSOCIATES INC /MD/
CIK 80255
Shares
1.75M
Value
239.08K
Filed
Jun 30, 2026
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
CIK 912938
Shares
1.62M
Value
220.61M
Filed
Jun 30, 2026
AMERIPRISE FINANCIAL INC
CIK 820027
Shares
1.58M
Value
215.05M
Filed
Jun 30, 2026
BANK OF NEW YORK MELLON CORP
CIK 1390777
Shares
1.52M
Value
207.78M
Filed
Jun 30, 2026
T. ROWE PRICE INVESTMENT MANAGEMENT, INC.
CIK 1897612
Shares
1.41M
Value
192.60K
Filed
Jun 30, 2026
INVESCO LTD.
CIK 914208
Shares
1.39M
Value
189.28M
Filed
Jun 30, 2026
HOLOCENE ADVISORS, LP
CIK 1700574
Shares
1.29M
Value
176.31M
Filed
Jun 30, 2026
SANDS CAPITAL MANAGEMENT, LLC
CIK 1020066
Shares
1.25M
Value
155.61M
Filed
Jun 30, 2025
RTW INVESTMENTS, LP
CIK 1493215
Shares
1.24M
Value
169.27M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
1.06M
Value
145M
Filed
Jun 30, 2026
CONGRESS ASSET MANAGEMENT CO
CIK 897378
Shares
1.02M
Value
196.25M
Filed
Sep 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BLACKROCK FINANCE, INC. | 1364742 | 7.57M | 954.08M | Jun 30, 2024 |
| 2 | BLACKROCK, INC. | 2012383 | 5.38M | 734.72M | Jun 30, 2026 |
| 3 | VANGUARD GROUP INC | 102909 | 4.99M | 818.31M | Dec 31, 2025 |
| 4 | FMR LLC | 315066 | 3.33M | 453.89M | Jun 30, 2026 |
| 5 | UNITED CAPITAL FINANCIAL ADVISORS, LLC | 1463217 | 2.79M | 380.76M | Jun 30, 2026 |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 2.41M | 328.98M | Jun 30, 2026 |
| 7 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 2.31M | 315.56M | Jun 30, 2026 |
| 8 | MAVERICK CAPITAL LTD | 934639 | 1.98M | 270.77M | Jun 30, 2026 |
| 9 | STATE STREET CORP | 93751 | 1.80M | 245.68M | Jun 30, 2026 |
| 10 | PRICE T ROWE ASSOCIATES INC /MD/ | 80255 | 1.75M | 239.08K | Jun 30, 2026 |
| 11 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 912938 | 1.62M | 220.61M | Jun 30, 2026 |
| 12 | AMERIPRISE FINANCIAL INC | 820027 | 1.58M | 215.05M | Jun 30, 2026 |
| 13 | BANK OF NEW YORK MELLON CORP | 1390777 | 1.52M | 207.78M | Jun 30, 2026 |
| 14 | T. ROWE PRICE INVESTMENT MANAGEMENT, INC. | 1897612 | 1.41M | 192.60K | Jun 30, 2026 |
| 15 | INVESCO LTD. | 914208 | 1.39M | 189.28M | Jun 30, 2026 |
| 16 | HOLOCENE ADVISORS, LP | 1700574 | 1.29M | 176.31M | Jun 30, 2026 |
| 17 | SANDS CAPITAL MANAGEMENT, LLC | 1020066 | 1.25M | 155.61M | Jun 30, 2025 |
| 18 | RTW INVESTMENTS, LP | 1493215 | 1.24M | 169.27M | Jun 30, 2026 |
| 19 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 1.06M | 145M | Jun 30, 2026 |
| 20 | CONGRESS ASSET MANAGEMENT CO | 897378 | 1.02M | 196.25M | Sep 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.