Repligen RGEN Institutional Ownership

NASDAQ RGEN

$177.23 -15.00 (-7.80%)

At close: Oct 1, 2026 · 4:00 PM EDT

Institutions by Trading Activity

483 Institutions

Increased 273 56.5%

Unchanged 69 14.3%

Reduced 141 29.2%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

117.97%

▲+2.15 pp QoQ

Shares Held by Institutions

66.56Mn

of 56.42Mn outstanding

▲+3.40% QoQ

Shares Outstanding

56.42Mn

-10.14Mn held outside 13F filers

Institutional Investors

483

filed 13F for Jun 2026

▲+42 vs prior quarter

Net Shares Added (QoQ)

+2.19Mn

accumulated since last quarter

Value of Holdings

$12.79Bn

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

Quarter ending 30 Jun, 2026

Repligen Corp (NASDAQ:RGEN) has 483 institutional investors with active 13F positions as of June 2026.

These investors held 118.0% of outstanding shares in June 2026, up from 115.8% in March 2026.
They increased total shares held in RGEN by 3.4% quarter over quarter, and investors in Repligen increased 8.54% from a year ago.
Of these 483 funds, 273 grew their exposure to Repligen, 141 cut back, and 69 maintained positions.
Institutional investors collectively held 66.56Mn shares in Repligen as of June 2026, up by 2.19Mn shares quarter on quarter, and up 9.37Mn shares year over year.
As of June 30, 2026, BlackRock, Inc. held the largest stake in Repligen with 5.38Mn shares, accounting for 9.54% of total shares outstanding.
The largest buyers of Repligen for the quarter ending June 2026 were WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC (788.57K), Ameriprise Financial Inc (650.92K), Holocene Advisors, LP (583.3K), NORGES BANK (575.23K), Sixth Street Partners Management Company, L.P. (481.74K).
The largest sellers of Repligen for the quarter ending June 2026 were PRICE T ROWE ASSOCIATES INC /MD/ (3.13Mn), CITADEL ADVISORS LLC (722.87K), BlackRock, Inc. (608.12K), Vestal Point Capital, LP (525.0K), Point72 Asset Management, L.P. (403.32K).
According to Business Quant data, leading holders of RGEN for June 2026 are BlackRock, Inc. (5.38Mn), FMR LLC (3.33Mn), UNITED CAPITAL FINANCIAL ADVISORS, LLC (2.79Mn), VANGUARD CAPITAL MANAGEMENT LLC (2.41Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (2.31Mn), MAVERICK CAPITAL LTD (1.98Mn), State Street Corp (1.8Mn), PRICE T ROWE ASSOCIATES INC /MD/ (1.75Mn), MASSACHUSETTS FINANCIAL SERVICES CO /MA/ (1.62Mn), WASATCH ADVISORS LP (1.59Mn).

Form 13F Holdings

482 Institutional Holders

Report period 30 Jun, 2026

Total shares held 66.56Mn

Of outstanding 117.97%

#	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