Regeneron Pharmaceuticals, Inc. (REGN) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

108,604,147Shares Outstanding

523,045Shares held by institutions

$415,051,899Value of institutional holdings

78.54%Institutional ownership %

3.36%Shares Changed QoQ

1,297No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

A total of 1297 institutions have reported a stake in Regeneron Pharmaceuticals, Inc. (NASDAQ:REGN) as of December 2025, according to recent 13F filings with the SEC.

The percentage of Regeneron Pharmaceuticals owned by institutions changed from 82.4% in September 2025 to 78.5% in December 2025, marking a slight down trend.
In percentage terms, this reflects as a holdings change of 3.36% quarter on quarter, and an increase of 0.46% year over year.
Of these 1297 institutional investors, 714 increased their holdings in Regeneron Pharmaceuticals, while 438 of them reduced positions, and 145 investors maintained their exposure.
The aggregate institutional position in Regeneron Pharmaceuticals now stands at 85.29Mn shares as of December 2025, after investors increased their holdings (up by 2.77Mn shares quarter on quarter which is down 8.37Mn shares year over year).
As of December 31, 2025, VANGUARD GROUP INC held Regeneron Pharmaceuticals's largest shareholding position with over 9.08Mn shares, representing 8.36% of total outstanding shares.
Among the most significant buyers of Regeneron Pharmaceuticals during December 2025 were NORGES BANK (1.31Mn), Nuveen, LLC (835.24K), WELLINGTON MANAGEMENT GROUP LLP (656.85K), FMR LLC (383.73K), FIL Ltd (341.67K).
Leading sellers of Regeneron Pharmaceuticals stock in December 2025 included D. E. Shaw & Co., Inc. (706.12K), Capital World Investors (600.36K), Qube Research & Technologies Ltd (439.75K), TWO SIGMA ADVISERS, LP (321.66K), RENAISSANCE TECHNOLOGIES LLC (266.08K).
The top 10 institutional holders of Regeneron Pharmaceuticals for the quarter ending December 2025 included VANGUARD GROUP INC (9.08Mn), BlackRock, Inc. (8.74Mn), STATE STREET CORP (4.66Mn), DODGE & COX (4.60Mn), JPMORGAN CHASE & CO (3.94Mn), FRANKLIN RESOURCES INC (2.56Mn), GEODE CAPITAL MANAGEMENT, LLC (2.52Mn), FMR LLC (2.32Mn), Nuveen, LLC (2.01Mn), LOOMIS SAYLES & CO L P (1.93Mn).

1,297 Institutional Holders

523,045 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
VANGUARD GROUP INC	31 Dec, 2025	9,075,153	26,884	0.30%	$7,004,838,346.00
BlackRock, Inc.	31 Dec, 2025	8,741,270	-95,904	-1.09%	$6,747,123,706.00
STATE STREET CORP	31 Dec, 2025	4,660,808	-30,415	-0.65%	$3,597,537,871.00
DODGE & COX	31 Dec, 2025	4,596,358	45,513	1.00%	$3,547,790,849.00
JPMORGAN CHASE & CO	31 Dec, 2025	3,940,160	-132,166	-3.25%	$3,041,292,891.00
FRANKLIN RESOURCES INC	31 Dec, 2025	2,560,004	106,861	4.36%	$1,975,990,279.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	2,519,540	-16,358	-0.65%	$1,936,711,198.00
FMR LLC	31 Dec, 2025	2,319,566	383,731	19.82%	$1,790,403,167.00
Nuveen, LLC	31 Dec, 2025	2,010,517	835,240	71.07%	$1,551,857,756.00
LOOMIS SAYLES & CO L P	31 Dec, 2025	1,934,326	-45,127	-2.28%	$1,493,048,247.00
Capital World Investors	31 Dec, 2025	1,398,003	-600,363	-30.04%	$1,079,077,052.00
MORGAN STANLEY	31 Dec, 2025	1,389,323	-61,649	-4.25%	$1,072,379,189.00
GOLDMAN SACHS GROUP INC	31 Dec, 2025	1,327,399	86,260	6.95%	$1,024,579,473.00
NORGES BANK	31 Dec, 2025	1,311,485	1,311,485	0.00%	$1,012,295,927.00
BANK OF AMERICA CORP /DE/	31 Dec, 2025	1,157,426	3,493	0.30%	$893,382,732.00
AQR CAPITAL MANAGEMENT LLC	31 Dec, 2025	995,710	274,356	38.03%	$768,518,494.00
NORTHERN TRUST CORP	31 Dec, 2025	944,933	-39,859	-4.05%	$729,365,434.00
Amundi	31 Dec, 2025	791,906	170,165	27.37%	$611,248,483.00
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	31 Dec, 2025	778,001	22,436	2.97%	$600,515,632.00
Bank of New York Mellon Corp	31 Dec, 2025	764,242	92,612	13.79%	$589,896,126.00

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