Repligen RGEN Institutional Ownership

NASDAQ RGEN

$175.94 -2.77 (-1.55%)

As of: Oct 23, 2026 · 3:29 PM EDT

Institutions by Trading Activity

482 Institutions

Increased 272 56.4%

Unchanged 69 14.3%

Reduced 141 29.3%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

—

13F totals exceed reported shares outstanding

Shares Held by Institutions

66.07Mn

of 56.43Mn outstanding

▲+1.22% QoQ

Shares Outstanding

56.43Mn

Institutional Investors

482

filed 13F for Jun 2026

▲+40 vs prior quarter

Net Shares Added (QoQ)

+799.30K

accumulated since last quarter

Value of Holdings

$11.81Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 22, 2026

Repligen Corp (NASDAQ:RGEN) appeared in the 13F filings of 482 institutional investors for the quarter ended June 30, 2026.

Total holdings of RGEN shares rose 1.22% from Q1 2026, and the holder count rose 9.30% from Q2 2025.
Of these 482 holders, 272 added to their positions, 141 reduced their stakes and 69 left their positions unchanged.
In total, institutional investors held 66.07Mn shares of Repligen at the end of Q2 2026, up 799.3K from the prior quarter and up 8.88Mn from a year earlier.
BlackRock, Inc. held the largest position in RGEN at 5.38Mn shares as of June 30, 2026.
The largest position increases in RGEN for Q2 2026 were by Ameriprise Financial Inc (+650.92K shares), Holocene Advisors, LP (+583.3K shares), Maverick Capital LTD (+465.75K shares), FMR LLC (+439.9K shares) and Wasatch Advisors LP (+346.72K shares).
The biggest cuts to RGEN positions during Q2 2026 came from T. Rowe Price Associates Inc (-3.13Mn shares), Citadel Advisors LLC (-722.87K shares), BlackRock, Inc. (-608.12K shares), Vestal Point Capital, LP (-525K shares) and Point72 Asset Management, L.P. (-403.32K shares).
Business Quant data shows the 10 biggest positions in Repligen as of Q2 2026 were held by BlackRock, Inc. (5.38Mn shares), FMR LLC (3.33Mn shares), United Capital Financial Advisors, LLC (2.79Mn shares), Vanguard Capital Management LLC (2.41Mn shares), Vanguard Portfolio Management LLC (2.31Mn shares), Maverick Capital LTD (1.98Mn shares), State Street Corp (1.8Mn shares), T. Rowe Price Associates Inc (1.75Mn shares), Massachusetts Financial Services Co (1.62Mn shares) and Wasatch Advisors LP (1.59Mn shares).

Form 13F Holdings

482 Institutional Holders

Report period 30 Jun, 2026

Total shares held 66.07Mn

Of outstanding —

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	5,384,938	9.54%	▼608,116	-10.15%	$734.72Mn
2	FMR LLC	0000315066	3,326,690	5.90%	▲439,904	+15.24%	$453.89Mn
3	UNITED CAPITAL FINANCIAL ADVISORS, LLC	0001463217	2,790,650	4.95%	▲16,670	+0.60%	$380.76Mn
4	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	2,411,171	4.27%	▲14,660	+0.61%	$328.98Mn
5	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	2,312,825	4.10%	▲7,731	+0.34%	$315.56Mn
6	MAVERICK CAPITAL LTD	0000934639	1,984,554	3.52%	▲465,749	+30.67%	$270.77Mn
7	State Street Corp	0000093751	1,800,530	3.19%	▲23,245	+1.31%	$245.68Mn
8	PRICE T ROWE ASSOCIATES INC /MD/	0000080255	1,752,274	3.11%	▼3,125,867	-64.08%	$239.08K
9	MASSACHUSETTS FINANCIAL SERVICES CO /MA/	0000912938	1,617,021	2.87%	▲219,506	+15.71%	$220.61Mn
10	WASATCH ADVISORS LP	0000814133	1,590,251	2.82%	▲346,720	+27.88%	$216.97Mn
11	Ameriprise Financial Inc	0000820027	1,576,132	2.79%	▲650,918	+70.35%	$215.05Mn
12	Bank of New York Mellon Corp	0001390777	1,522,859	2.70%	▼8,543	-0.56%	$207.78Mn
13	T. Rowe Price Investment Management, Inc.	0001897612	1,411,619	2.50%	▲44,939	+3.29%	$192.60K
14	Invesco Ltd.	0000914208	1,387,242	2.46%	▲108,987	+8.53%	$189.28Mn
15	Holocene Advisors, LP	0001700574	1,292,191	2.29%	▲583,302	+82.28%	$176.31Mn
16	RTW INVESTMENTS, LP	0001493215	1,240,637	2.20%	▲34,637	+2.87%	$169.27Mn
17	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,062,476	1.88%	▼1,981	-0.19%	$145.00Mn
18	CONGRESS ASSET MANAGEMENT CO	0000897378	1,012,226	1.79%	▲214,359	+26.87%	$138.11Mn
19	Conestoga Capital Advisors, LLC	0001163744	980,983	1.74%	▼116,800	-10.64%	$133.85Mn
20	Goldman Sachs Group Inc	0000886982	965,411	1.71%	▲314,064	+48.22%	$131.72Mn

Showing 1 to 20 of 482 holders