Who owns Repligen Corporation?
Institutional ownership of RGEN from SEC Form 13F filings across 312 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
312
13F holders
$5.46B
value, 2026 filers
75.8%
of shares outstanding (42.8M sh)
61
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of RGEN's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 5.4M | $734.7M | 0.0% | 9.5% | -10.1% |
| 2 | FMR LLC | 3.3M | $453.9M | 0.0% | 5.9% | +15.2% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 2.4M | $329.0M | 0.0% | 4.3% | -49.7% |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2.3M | $315.6M | 0.0% | 4.1% | +0.3% |
| 5 | PRICE T ROWE ASSOCIATES INC /MD/ | 1.8M | $239,081 | 0.0% | 3.1% | -64.1% |
| 6 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 1.6M | $220.6M | 0.1% | 2.9% | +15.7% |
| 7 | AMERIPRISE FINANCIAL INC | 1.6M | $215.0M | 0.0% | 2.8% | +70.4% |
| 8 | Bank of New York Mellon Corp | 1.5M | $207.8M | 0.0% | 2.7% | -0.6% |
| 9 | Invesco Ltd. | 1.4M | $189.3M | 0.0% | 2.5% | +8.5% |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 1.1M | $145.0M | 0.0% | 1.9% | -0.2% |
| 11 | GOLDMAN SACHS GROUP INC | 965,411 | $131.7M | 0.0% | 1.7% | +48.2% |
| 12 | FRANKLIN RESOURCES INC | 890,216 | $121.5M | 0.0% | 1.6% | -25.4% |
| 13 | ALLIANCEBERNSTEIN L.P. | 795,282 | $93.7M | 0.0% | 1.4% | -4.4% |
| 14 | UBS Group AG | 795,009 | $108.5M | 0.0% | 1.4% | +18.6% |
| 15 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLCNEW | 788,571 | $107.6M | 0.3% | 1.4% | new |
| 16 | BAMCO INC /NY/ | 748,466 | $102.1M | 0.2% | 1.3% | +36.5% |
| 17 | FRED ALGER MANAGEMENT, LLC | 733,739 | $100.1M | 0.3% | 1.3% | +68.8% |
| 18 | FIRST TRUST ADVISORS LP | 634,219 | $86.5M | 0.1% | 1.1% | +0.7% |
| 19 | NORGES BANKNEW | 575,226 | $78.5M | 0.0% | 1% | new |
| 20 | VOYA INVESTMENT MANAGEMENT LLC | 549,203 | $74.9M | 0.1% | 1% | -11.8% |
| 21 | MORGAN STANLEY | 543,242 | $74.1M | 0.0% | 1% | -20.6% |
| 22 | Sixth Street Partners Management Company, L.P.NEW | 481,744 | $65.7M | 11.3% | 0.9% | new |
| 23 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 481,744 | $65.7M | 0.0% | 0.9% | +6.3% |
| 24 | NORTHERN TRUST CORP | 444,146 | $60.6M | 0.0% | 0.8% | -0.1% |
| 25 | Thrivent Financial for Lutherans | 436,865 | $59,606 | 0.1% | 0.8% | +2.7% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.