Regeneron Pharmaceuticals Ownership | Who Owns Regeneron Pharmaceuticals?

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Regeneron Pharmaceuticals Ownership Summary

Regeneron Pharmaceuticals is owned by 81.57% institutional investors, 2.03% insiders, and 16.39% retail investors. Vanguard group is the largest institutional shareholder, holding 8.82% of REGN shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 3.16% of its assets in Regeneron Pharmaceuticals shares.

REGN Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Regeneron Pharmaceuticals	81.57%	2.03%	16.39%
Sector	Healthcare Stocks	35.58%	11.87%	52.55%
Industry	Biotech Stocks	35.75%	11.83%	52.41%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	9.08M	8.82%	$7.00B
Blackrock funding, inc. /de	8.95M	8.55%	$6.91B
Blackrock	8.45M	7.84%	$8.88B
State street	4.66M	4.46%	$3.60B
Dodge & cox	4.46M	4.26%	$3.44B
Jpmorgan chase	4.31M	4.12%	$3.23B
Franklin resources	2.72M	2.60%	$2.10B
Geode capital management	2.61M	2.49%	$2.01B
Price t rowe associates inc /md/	2.18M	2.08%	$1.68B
Nuveen	2.07M	1.97%	$1.60B

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Bronte capital management pty	172.79K	13.22%	$133.50M
Mcdonald capital investors inc/ca	205.87K	10.88%	$159.06M
Davern capital partners, lp	44.80K	9.50%	$34.61M
Rk asset management	12.66K	9.22%	$9.77M
Orion investment	30.84K	7.56%	$23.83M
R.p. boggs	16.78K	6.27%	$13.04M
Solas capital management	18.22K	6.25%	$10.24M
Guoline advisory pte	67.30K	5.44%	$52.00M
Bellevue group	278.67K	5.12%	$215.31M
Southeastern asset management inc/tn/	130.66K	4.97%	$100.95M

Top Buyers

Holder	Shares	% Assets	Change
Norges bank	1.31M	0.11%	1.31M
Wellington management group llp	1.84M	0.27%	1.17M
Vanguard fiduciary trust	569.94K	0.11%	569.94K
Two sigma investments, lp	812.24K	0.51%	531.09K
Jpmorgan chase	4.31M	0.21%	371.65K

Top Sellers

Holder	Shares	% Assets	Change
Capital investors	-	-	-876.56K
Fmr	1.52M	0.06%	-801.37K
Marshall wace, llp	353.00	0.00%	-478.20K
Holocene advisors, lp	-	-	-460.72K
Pacer advisors	-	-	-397.67K

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	1.31M	0.11%	1.31M	$1.01B
Vanguard fiduciary trust	569.94K	0.11%	569.94K	$440.36M
Vanguard global advisers	228.49K	0.10%	228.49K	$176.54M
Vanguard asset management	176.34K	0.12%	176.34K	$136.25M
Jennison associates	115.20K	0.06%	115.20K	$89.01M

Sold Out

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

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	1,416	-2.07%	85,326,286	-4.30%	81	1.09%	698	-9.11%	449	-2.18%
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%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard Total Stock Mkt Idx Inv	3.31M	3.16%	8.94K
Vanguard US Total Market Shares ETF	3.44M	3.14%	178.74K
Vanguard Institutional 500 Index Trust	2.99M	2.77%	22.25K
Dodge & Cox Stock I	2.91M	2.75%	-85.90K
Vanguard 500 Index Investor	2.61M	2.49%	46.97K
Invesco QQQ Trust	2.22M	2.12%	16.39K
iShares Core S&P 500 ETF	1.30M	1.24%	3.83K
Fidelity 500 Index	1.29M	1.23%	4.75K
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
May 01, 2026	RYAN ARTHUR F	-	Sell	$16.88K
May 01, 2026	RYAN ARTHUR F	-	Sell	$10.56K
May 01, 2026	RYAN ARTHUR F	-	Sell	$3.51K
May 01, 2026	RYAN ARTHUR F	-	Sell	$10.54K
May 01, 2026	RYAN ARTHUR F	-	Sell	$9.88K

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	-	9
2026 Q1	-	49
2025 Q4	-	8
2025 Q1	-	-
2024 Q4	-	19

REGN Ownership FAQ

Who Owns Regeneron Pharmaceuticals?

Regeneron Pharmaceuticals shareholders are primarily institutional investors at 81.57%, followed by 2.03% insiders and 16.40% retail investors. The average institutional ownership in Regeneron Pharmaceuticals's industry, Biotech Stocks , is 35.75%, which Regeneron Pharmaceuticals exceeds.

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 (8.95M shares, 8.55%), and Blackrock (8.45M shares, 7.84%). Together, they hold 25.21% 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 13.22% of its assets in 172.79K Regeneron Pharmaceuticals shares, valued at 133.5M$.

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

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of Regeneron Pharmaceuticals shares, with 3.16% of its total shares outstanding invested in 3.31M Regeneron Pharmaceuticals shares.

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