Regeneron Pharmaceuticals Ownership | Who Owns Regeneron Pharmaceuticals?

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Regeneron Pharmaceuticals Ownership Summary

Regeneron Pharmaceuticals is owned by 88.44% institutional investors, 2.08% insiders, and 9.48% retail investors. Vanguard group is the largest institutional shareholder, holding 8.82% of REGN shares. Vanguard MStar Total Stk Mkt Idx Invest is the top mutual fund, with 3.19% of its assets in Regeneron Pharmaceuticals shares.

REGN Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Regeneron Pharmaceuticals	88.44%	2.08%	9.48%
Sector	Healthcare Stocks	50.53%	12.40%	37.07%
Industry	Biotech Stocks	48.96%	12.12%	38.92%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	9.08M	8.82%	$7.00B
Blackrock funding, inc. /de	9.11M	8.76%	$5.68B
Blackrock	8.45M	7.84%	$8.88B
Vanguard capital management	6.63M	6.37%	$4.13B
Dodge & cox	4.87M	4.68%	$3.04B
State street	4.83M	4.65%	$3.01B
Invesco	3.94M	3.79%	$2.46B
Jpmorgan chase	3.77M	3.63%	$2.38B
Franklin resources	2.77M	2.67%	$1.73B
Geode capital management	2.63M	2.52%	$1.63B

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Bronte capital management pty	162.62K	10.89%	$101.40M
Davern capital partners, lp	92.64K	9.85%	$57.76M
Rk asset management	12.66K	9.22%	$9.77M
Mcdonald capital investors inc/ca	193.04K	8.79%	$120.37M
Solas capital management	18.22K	6.25%	$10.24M
Orion investment	29.50K	5.37%	$18.40M
Southeastern asset management inc/tn/	152.32K	4.95%	$94.98M
Diadema partners lp	30.16K	4.34%	$16.96M
Guoline advisory pte	67.30K	3.91%	$41.96M
Superstring capital management lp	6.40K	3.55%	$3.60M

Top Buyers

Holder	Shares	% Assets	Change
Invesco	3.94M	0.19%	1.76M
Norges bank	1.17M	0.07%	1.17M
Sixth street partners management company	846.31K	0.07%	846.31K
Dodge & cox	4.87M	1.59%	412.90K
Sg americas securities	427.70K	0.15%	269.43K

Top Sellers

Holder	Shares	% Assets	Change
Capital investors	-	-	-876.56K
Fmr	831.96K	0.02%	-686.23K
Price t rowe associates inc /md/	1.53M	0.10%	-647.82K
Capital world investors	814.92K	0.06%	-604.08K
Wellington management group llp	1.27M	0.14%	-567.37K

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	1.17M	0.07%	1.17M	$731.29M
Sixth street partners management company	846.31K	0.07%	846.31K	$527.71M
Axa investment managers	62.29K	0.09%	62.29K	$35.02M
Curated wealth partners	36.74K	0.13%	36.74K	$1.01M
Hrt financial lp	36.09K	0.04%	36.09K	$22.50M

Sold Out

Holder	Change
Proffitt & goodson	-1.00
Greenline partners	-1.00
Triad wealth partners	-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 %
Jun 30, 2026	1,374	-5.63%	91,982,745	3.63%	88	1.21%	603	-15.55%	533	14.87%
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%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard MStar Total Stk Mkt Idx Invest	3.28M	3.19%	9.38K
Vanguard Morn Total Stk Mkt Idx Investor	3.27M	3.18%	-35.66K
Vanguard US Total Market Shares ETF	3.44M	3.14%	178.74K
Vanguard Total Stock Mkt Idx Inv	3.27M	3.12%	-35.66K
Dodge & Cox Stock I	3.12M	2.98%	213.37K
Vanguard Institutional 500 Index Trust	2.99M	2.77%	22.25K
Vanguard 500 Index Investor	2.62M	2.55%	27.72K
Invesco QQQ Trust	2.13M	2.07%	-27.05K
iShares Core S&P 500 ETF	1.35M	1.31%	2.15K
Fidelity 500 Index	1.28M	1.25%	-8.15K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Aug 10, 2026	Guarini Kathryn	-	Sell	$320.00K
Aug 10, 2026	Zoghbi Huda Y	-	Sell	$640.00K
Jul 02, 2026	RYAN ARTHUR F	-	Sell	$130.03K
May 01, 2026	RYAN ARTHUR F	-	Sell	$10.56K
May 01, 2026	RYAN ARTHUR F	-	Sell	$10.54K

Insider Transactions Trends

Date	Buy	Sell
2026 Q3	-	3
2026 Q2	-	21
2026 Q1	-	49
2025 Q4	-	8
2025 Q1	-	-

REGN Ownership FAQ

Who Owns Regeneron Pharmaceuticals?

Regeneron Pharmaceuticals shareholders are primarily institutional investors at 88.44%, followed by 2.08% insiders and 9.48% retail investors. The average institutional ownership in Regeneron Pharmaceuticals's industry, Biotech Stocks , is 48.96%, 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 (9.11M shares, 8.76%), and Blackrock (8.45M shares, 7.84%). Together, they hold 25.42% 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 10.89% of its assets in 162.62K Regeneron Pharmaceuticals shares, valued at 101.4M$.

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

Vanguard MStar Total Stk Mkt Idx Invest is the top mutual fund holder of Regeneron Pharmaceuticals shares, with 3.19% of its total shares outstanding invested in 3.28M Regeneron Pharmaceuticals shares.

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