Regeneron Pharmaceuticals Ownership | Who Owns Regeneron Pharmaceuticals?

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Regeneron Pharmaceuticals Ownership Summary

Regeneron Pharmaceuticals is owned by 47.65% institutional investors, 1.98% insiders, and 50.37% retail investors. Vanguard group is the largest institutional shareholder, holding 8.82% of REGN shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 3.14% of its assets in Regeneron Pharmaceuticals shares.

REGN Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Regeneron Pharmaceuticals	47.65%	1.98%	50.37%
Sector	Healthcare Stocks	232.20%	10.74%	-142.94%
Industry	Biotech Stocks	382.11%	10.55%	-292.66%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	9.08M	8.82%	$7.00B
Blackrock funding, inc. /de	8.74M	8.49%	$6.75B
Blackrock	8.45M	7.84%	$8.88B
State street	4.66M	4.46%	$3.60T
Dodge & cox	4.55M	4.33%	$2.56B
Jpmorgan chase	3.94M	3.77%	$3.04B
Franklin resources	2.56M	2.49%	$1.98B
Geode capital management	2.52M	2.45%	$1.94B
Nuveen	2.01M	1.95%	$1.55B
Loomis sayles & co l p	1.93M	1.88%	$1.49B

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Bronte capital management pty	176.77K	13.61%	$136.44M
R.p. boggs	29.34K	10.08%	$22.65M
Mcdonald capital investors inc/ca	208.24K	9.86%	$160.73M
Rk asset management	12.66K	9.22%	$9.77M
Orion investment	30.81K	7.25%	$23.78M
Solas capital management	18.22K	6.25%	$10.24M
Guoline advisory pte	67.30K	4.78%	$51.95M
Diadema partners lp	30.16K	4.34%	$16.96M
Sound shore management inc /ct/	175.89K	4.32%	$135.76M
Ellerson group inc /adv	8.04K	4.20%	$6.20M

Top Buyers

Holder	Shares	% Assets	Change
Norges bank	1.31M	0.11%	1.31M
Nuveen	2.01M	0.41%	835.24K
Dodge & cox	4.55M	1.38%	724.56K
Invesco	1.48M	0.13%	408.65K
Caisse de depot et placement du quebec	462.50K	0.47%	247.78K

Top Sellers

Holder	Shares	% Assets	Change
Fmr	1.94M	0.06%	-1.39M
Capital investors	-	-	-876.56K
Capital world investors	1.40M	0.15%	-600.36K
Pacer advisors	-	-	-445.32K
Amundi	621.74K	0.12%	-275.39K

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	1.31M	0.11%	1.31M	$1.01B
Holocene advisors, lp	151.73K	0.19%	151.73K	$85.31M
Axa investment managers	62.29K	0.09%	62.29K	$35.02M
Rakuten investment management	58.91K	0.02%	58.91K	$4.89M
Ofi invest asset management	31.27K	0.29%	31.27K	$20.55M

Sold Out

Holder	Change
Proffitt & goodson	-1.00
Greenline partners	-1.00
Financial gravity asset management	-1.00
Triad wealth partners	-1.00
Palisade asset management	-1.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2025	930	-28.68%	49,033,116	-43.67%	47	0.69%	498	-24.89%	295	-27.34%
Sep 30, 2025	813	-35.17%	39,624,504	-53.33%	37	0.58%	418	-25.36%	267	-43.79%
Jun 30, 2025	1,254	-5.93%	89,298,391	-2.58%	84	1.15%	562	-14.07%	469	2.85%
Mar 31, 2025	18	-98.69%	558,121	-99.40%	-	0.01%	7	-98.90%	3	-99.38%
Dec 31, 2024	1,243	-13.68%	85,658,993	-7.35%	79	1.08%	578	-12.82%	435	-4.81%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard US Total Market Shares ETF	3.44M	3.14%	178.74K
Vanguard Total Stock Mkt Idx Inv	3.09M	2.92%	6.68K
Dodge & Cox Stock I	2.99M	2.83%	71.82K
Vanguard Institutional 500 Index Trust	2.99M	2.77%	22.25K
Vanguard 500 Index Investor	2.57M	2.43%	15.98K
Invesco QQQ Trust	2.21M	2.09%	-4.90K
iShares Core S&P 500 ETF	1.28M	1.21%	185.87K
Fidelity 500 Index	1.27M	1.21%	-11.99K
SPDR® S&P 500 ETF	1.31M	1.20%	-19.22K
SPDR® S&P 500® ETF	1.25M	1.18%	15.43K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Feb 19, 2026	Zoghbi Huda Y	-	Sell	$41.26K
Feb 19, 2026	Zoghbi Huda Y	-	Sell	$162.15K
Feb 19, 2026	Zoghbi Huda Y	-	Sell	$37.96K
Feb 19, 2026	Zoghbi Huda Y	-	Sell	$38.77K
Feb 19, 2026	Zoghbi Huda Y	-	Sell	$258.33K

Insider Transactions Trends

Date	Buy	Sell
2026 Q1	-	25
2025 Q4	-	8
2025 Q1	-	-
2024 Q4	-	19
2024 Q3	-	117

REGN Ownership FAQ

Who Owns Regeneron Pharmaceuticals?

Regeneron Pharmaceuticals shareholders are primarily institutional investors at 47.65%, followed by 1.98% insiders and 50.37% retail investors. The average institutional ownership in Regeneron Pharmaceuticals's industry, Biotech Stocks , is 382.11%, which Regeneron Pharmaceuticals falls below.

Who owns the most shares of Regeneron Pharmaceuticals?

Regeneron Pharmaceuticals’s largest shareholders are Vanguard group (9.08M shares, 8.82%), Blackrock funding, inc. /de (8.74M shares, 8.49%), and Blackrock (8.45M shares, 7.84%). Together, they hold 25.15% of Regeneron Pharmaceuticals’s total shares outstanding.

Does Blackrock own Regeneron Pharmaceuticals?

Yes, BlackRock owns 7.84% of Regeneron Pharmaceuticals, totaling 8.45M shares as of Jun 2024. This represents 0.20% of BlackRock's total assets, with a market value of 8.88B$. In the last quarter, BlackRock decreased its holdings by -122K shares, a -1.43% change.

Who is Regeneron Pharmaceuticals’s biggest shareholder by percentage of total assets invested?

Bronte capital management pty is Regeneron Pharmaceuticals’s biggest shareholder by percentage of total assets invested, with 13.61% of its assets in 176.77K Regeneron Pharmaceuticals shares, valued at 136.44M$.

Who is the top mutual fund holder of Regeneron Pharmaceuticals shares?

Vanguard US Total Market Shares ETF is the top mutual fund holder of Regeneron Pharmaceuticals shares, with 3.14% of its total shares outstanding invested in 3.44M Regeneron Pharmaceuticals shares.

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