REGENERON PHARMACEUTICALS, INC. (REGN) — Institutional Holders, Q2 2026

1,345 institutional investment managers reported a REGN position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $57.0B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← REGN stock profile

REGN in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

115

Added to

481

Trimmed

543

Sold out

169

Biggest buyers

Invesco Ltd.Added · +2,216,187 sh+$1.4B
VANGUARD PORTFOLIO MANAGEMENTAdded · +1,454,539 sh+$907.0M
DODGE & COXAdded · +412,899 sh+$257.5M
Pacer AdvisorsNew · +369,451 sh+$230.4M
SG Americas SecuritiesAdded · +269,425 sh+$168.0M

Biggest sellers

FMRTrimmed · -686,228 sh-$427.9M
PRICE T ROWE ASSOCIATESTrimmed · -647,818 sh-$403.9M
Capital World InvestorsTrimmed · -604,075 sh-$376.7M
WELLINGTON MANAGEMENT GROUP LLPTrimmed · -567,372 sh-$353.8M
JPMORGAN CHASETrimmed · -537,607 sh-$335.2M

REGN 13F holders ranked 1–100 of 1,345

Institutional investors reporting a position in REGENERON PHARMACEUTICALS, INC. on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	BlackRock#1 · 9,113,506 sh	9,113,506	$5.7B	0.08%	+1.9%
2	VANGUARD CAPITAL MANAGEMENT#2 · 6,629,759 sh	6,629,759	$4.1B	0.09%	-0.4%
3	DODGE & COX#3 · 4,871,137 sh	4,871,137	$3.0B	1.59%	+9.3%
4	STATE STREET#4 · 4,834,688 sh	4,834,688	$3.0B	0.09%	+3.6%
5	Invesco Ltd.#5 · 3,940,665 sh	3,940,665	$2.5B	0.19%	+128.5%
6	JPMORGAN CHASE#6 · 3,774,199 sh	3,774,199	$2.4B	0.13%	-12.5%
7	VANGUARD PORTFOLIO MANAGEMENT#7 · 3,175,313 sh	3,175,313	$2.0B	0.09%	+84.5%
8	FRANKLIN RESOURCES#8 · 2,771,839 sh	2,771,839	$1.7B	0.37%	+1.8%
9	GEODE CAPITAL MANAGEMENT#9 · 2,625,810 sh	2,625,810	$1.6B	0.09%	+0.7%
10	Nuveen#10 · 2,019,974 sh	2,019,974	$1.3B	0.30%	-2.2%
11	LOOMIS SAYLES & L P#11 · 1,859,172 sh	1,859,172	$1.2B	1.45%	-2.8%
12	PRICE T ROWE ASSOCIATES#12 · 1,529,709 sh	1,529,709	$953.8M	0.10%	-29.8%
13	MORGAN STANLEY#13 · 1,397,712 sh	1,397,712	$871.5M	0.05%	+5.9%
14	BANK OF AMERICA#14 · 1,291,053 sh	1,291,053	$805.0M	0.05%	+8.5%
15	WELLINGTON MANAGEMENT GROUP LLP#15 · 1,270,087 sh	1,270,087	$792.0M	0.14%	-30.9%
16	NORGES BANK#16 · 1,172,808 sh	1,172,808	$731.3M	0.07%	—
17	GOLDMAN SACHS GROUP#17 · 1,163,191 sh	1,163,191	$725.3M	0.06%	-10.6%
18	AQR CAPITAL MANAGEMENT#18 · 1,126,080 sh	1,126,080	$702.2M	0.24%	-8.5%
19	Amundi#19 · 1,013,540 sh	1,013,540	$632.0M	0.15%	+0.4%
20	NORTHERN#20 · 916,467 sh	916,467	$571.5M	0.07%	-2.7%
21	CHARLES SCHWAB INVESTMENT MANAGEMENT#21 · 846,306 sh	846,306	$527.7M	0.07%	+5.2%
22	FMR#22 · 831,964 sh	831,964	$518.8M	0.02%	-45.2%
23	Capital World Investors#23 · 814,925 sh	814,925	$508.1M	0.06%	-42.6%
24	Legal & General Group Plc#24 · 759,971 sh	759,971	$473.9M	0.10%	+3.8%
25	Bank of New York Mellon#25 · 758,492 sh	758,492	$473.0M	0.08%	-0.9%
26	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#26 · 716,560 sh	716,560	$446.8M	0.08%	-1.0%
27	TWO SIGMA INVESTMENTS#27 · 656,124 sh	656,124	$409.1M	0.30%	-19.2%
28	VANGUARD FIDUCIARY#28 · 563,711 sh	563,711	$351.5M	0.08%	-1.1%
29	DIMENSIONAL FUND ADVISORS#29 · 559,687 sh	559,687	$349.0M	0.06%	+9.1%
30	FIRST ADVISORS#30 · 547,132 sh	547,132	$341.2M	0.20%	+57.7%
31	DEUTSCHE BANK AG\#31 · 518,409 sh	518,409	$323.2M	0.09%	-17.1%
32	Robeco Institutional Asset Management B.V.#32 · 460,602 sh	460,602	$287.2M	—	+32.1%
33	Man Group plc#33 · 436,956 sh	436,956	$272.5M	0.43%	+38.6%
34	SG Americas Securities#34 · 427,703 sh	427,703	$266.7M	0.15%	+170.2%
35	Neuberger Berman Group#35 · 421,976 sh	421,976	$263.1M	0.17%	-1.2%
36	BNP PARIBAS FINANCIAL MARKETS#36 · 399,847 sh	399,847	$249.3M	0.09%	-10.8%
37	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP#37 · 393,685 sh	393,685	$245.5M	0.11%	+129.5%
38	HSBC PLC#38 · 382,028 sh	382,028	$238.5M	0.10%	+18.2%
39	Allianz Asset Management GmbH#39 · 327,683 sh	327,683	$237.2M	0.21%	+8.8%
40	National Pension Service#40 · 379,815 sh	379,815	$236.8M	0.15%	+2.2%
41	Pacer Advisors#41 · 369,451 sh	369,451	$230.4M	0.59%	New
42	NORDEA INVESTMENT MANAGEMENT AB#42 · 363,479 sh	363,479	$227.4M	0.19%	+285.4%
43	ALLIANCEBERNSTEIN L.P.#43 · 292,338 sh	292,338	$225.9M	0.07%	-31.5%
44	WORLDQUANT MILLENNIUM ADVISORS#44 · 353,970 sh	353,970	$220.7M	0.76%	+251.6%
45	CITIGROUP#45 · 346,637 sh	346,637	$216.1M	0.07%	+87.7%
46	BNP Paribas Asset Management Holding S.A.#46 · 331,560 sh	331,560	$206.7M	0.21%	+21.4%
47	UBS Group AG#47 · 298,234 sh	298,234	$186.0M	0.02%	-0.6%
48	Swiss National Bank#48 · 293,020 sh	293,020	$182.7M	0.10%	-3.3%
49	Sumitomo Mitsui#49 · 282,199 sh	282,199	$176.0M	0.10%	+3.1%
50	FIL Ltd#50 · 265,490 sh	265,490	$165.5M	0.12%	-14.2%
51	TD ASSET MANAGEMENT#51 · 259,317 sh	259,317	$161.7M	0.14%	-26.1%
52	Mitsubishi UFJ Asset Management , Ltd.#52 · 257,450 sh	257,450	$160.5M	0.09%	+7.0%
53	FEDERATED HERMES#53 · 256,884 sh	256,884	$160.2M	0.23%	+0.8%
54	JACOBS LEVY EQUITY MANAGEMENT#54 · 256,503 sh	256,503	$159.9M	0.58%	+19.8%
55	BARCLAYS PLC#55 · 256,192 sh	256,192	$159.7M	0.03%	-18.2%
56	LSV ASSET MANAGEMENT#56 · 253,200 sh	253,200	$157.9M	0.29%	+29.0%
57	DekaBank Deutsche Girozentrale#57 · 211,207 sh	211,207	$157.7M	0.27%	0.0%
58	CAISSE DE DEPOT ET PLACEMENT DU QUEBEC#58 · 250,608 sh	250,608	$156.3M	0.22%	-23.8%
59	Assenagon Asset Management S.A.#59 · 244,927 sh	244,927	$152.7M	—	+17.9%
60	Russell Investments Group, Ltd.#60 · 230,151 sh	230,151	$143.6M	0.13%	+0.9%
61	AMERIPRISE FINANCIAL#61 · 227,457 sh	227,457	$142.2M	0.03%	-28.8%
62	Vanguard Global Advisers#62 · 226,724 sh	226,724	$141.4M	0.07%	-0.8%
63	CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM#63 · 224,269 sh	224,269	$139.8M	0.08%	+2.5%
64	Qube Research & Technologies Ltd#64 · 221,607 sh	221,607	$138.2M	0.13%	+165.8%
65	CANADA PENSION PLAN INVESTMENT BOARD#65 · 209,911 sh	209,911	$130.9M	0.07%	+11.9%
66	Squarepoint Ops#66 · 198,567 sh	198,567	$123.8M	0.14%	+22.0%
67	VANGUARD ASSET MANAGEMENT, Ltd#67 · 197,770 sh	197,770	$123.3M	0.08%	+12.2%
68	Candriam S.C.A.#68 · 195,674 sh	195,674	$121.9M	0.55%	+5.0%
69	MCDONALD CAPITAL INVESTORS#69 · 193,038 sh	193,038	$120.4M	8.79%	-6.2%
70	Swedbank AB#70 · 189,848 sh	189,848	$118.4M	0.10%	-11.9%
71	Epoch Investment Partners#71 · 186,850 sh	186,850	$116.5M	0.66%	-21.7%
72	Carmignac Gestion#72 · 182,507 sh	182,507	$113.8M	1.48%	+56.6%
73	BANK OF NOVA SCOTIA#73 · 181,706 sh	181,706	$113.3M	0.17%	+86.3%
74	SUSQUEHANNA INTERNATIONAL GROUP, LLP#74 · 180,219 sh	180,219	$112.4M	<0.01%	+488.6%
75	KBC Group NV#75 · 179,508 sh	179,508	$111.9M	—	+366.6%
76	Chevy Chase#76 · 179,056 sh	179,056	$111.6M	0.29%	-13.0%
77	PANAGORA ASSET MANAGEMENT#77 · 175,291 sh	175,291	$109.3M	0.34%	+66.6%
78	ROYAL BANK OF CANADA#78 · 174,515 sh	174,515	$108.8M	0.02%	-50.3%
79	RAYMOND JAMES FINANCIAL#79 · 172,896 sh	172,896	$107.8M	0.03%	+4.4%
80	MILLENNIUM MANAGEMENT#80 · 165,120 sh	165,120	$103.0M	0.04%	+163.2%
81	VOLORIDGE INVESTMENT MANAGEMENT#81 · 163,963 sh	163,963	$102.2M	0.43%	+967.2%
82	Bronte Capital Management Pty Ltd.#82 · 162,618 sh	162,618	$101.4M	10.89%	-5.9%
83	RHUMBLINE ADVISERS#83 · 157,794 sh	157,794	$98.4M	0.07%	0.0%
84	ACADIAN ASSET MANAGEMENT#84 · 157,440 sh	157,440	$98.1M	0.12%	+4.1%
85	Bellevue Group AG#85 · 157,291 sh	157,291	$98.1M	2.06%	-43.6%
86	Pictet Asset Management Holding SA#86 · 153,500 sh	153,500	$96.5M	0.09%	-54.5%
87	SOUTHEASTERN ASSET MANAGEMENT#87 · 152,322 sh	152,322	$95.0M	4.95%	+16.6%
88	RENAISSANCE TECHNOLOGIES#88 · 148,222 sh	148,222	$92.4M	0.13%	+121.9%
89	MANUFACTURERS LIFE INSURANCE COMPANY, THE#89 · 147,961 sh	147,961	$92.3M	0.07%	-63.8%
90	Jupiter Topco#90 · 144,821 sh	144,821	$90.3M	0.04%	—
91	WELLS FARGO & COMPANY#91 · 140,802 sh	140,802	$87.8M	0.01%	-0.9%
92	MACKENZIE FINANCIAL#92 · 135,783 sh	135,783	$84.7M	0.08%	+57.3%
93	THRIVENT FINANCIAL FOR LUTHERANS#93 · 131,457 sh	131,457	$82.0M	0.14%	+1457.5%
94	PRUDENTIAL FINANCIAL#94 · 130,659 sh	130,659	$81.5M	0.09%	-7.0%
95	NATIXIS ADVISORS#95 · 129,236 sh	129,236	$80.6M	0.09%	+2.8%
96	Retirement Systems of Alabama#96 · 127,869 sh	127,869	$79.7M	0.24%	-0.3%
97	SOUND SHORE MANAGEMENT#97 · 126,994 sh	126,994	$79.2M	2.44%	-15.9%
98	VICTORY CAPITAL MANAGEMENT#98 · 126,343 sh	126,343	$78.8M	0.04%	-2.1%
99	JUPITER ASSET MANAGEMENT LTD#99 · 126,099 sh	126,099	$78.6M	0.39%	New
100	NATIONAL BANK OF CANADA#100 · 125,812 sh	125,812	$78.5M	0.06%	-3.2%

Funds that sold out of REGN in Q2 2026 (169)

Held REGN at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held REGN in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
Polar Capital Plc192,546 sh	192,546	$148.8M
JENNISON ASSOCIATES115,199 sh	115,199	$89.0M
Capital Research Global Investors101,891 sh	101,891	$78.7M
Zurich Insurance Group Ltd99,069 sh	99,069	$76.5M
Freestone Grove Partners30,625 sh	30,625	$23.7M
R.P. Boggs16,778 sh	16,778	$13.0M
PICTON MAHONEY ASSET MANAGEMENT15,408 sh	15,408	$11.9M
ORBIMED ADVISORS14,700 sh	14,700	$11.4M
Simplify Asset Management10,900 sh	10,900	$8.4M
Rock Springs Capital Management10,100 sh	10,100	$7.8M
Cinctive Capital Management9,278 sh	9,278	$7.2M
ATLAS CAPITAL ADVISORS7,758 sh	7,758	$6.0M
Citizens Business Bank6,090 sh	6,090	$4.7M
Motley Fool Wealth Management5,485 sh	5,485	$4.2M
Emerald Investment Advisers5,388 sh	5,388	$4.2M
Fisher Asset Management5,059 sh	5,059	$3.9M
Nearwater Capital Markets, Ltd5,000 sh	5,000	$3.9M
Oliver Luxxe Assets4,641 sh	4,641	$3.6M
ExodusPoint Capital Management3,756 sh	3,756	$2.9M
MOODY LYNN & LIEBERSON3,109 sh	3,109	$2.4M
INTACT INVESTMENT MANAGEMENT3,010 sh	3,010	$2.3M
Gator Capital Management3,000 sh	3,000	$2.3M
Hudson Canyon Capital Management2,759 sh	2,759	$2.1M
Arrowpoint Investment Partners (Singapore) Pte. Ltd.2,502 sh	2,502	$1.9M
Point72 Asset Management, L.P.2,175 sh	2,175	$1.7M
MONETTA FINANCIAL SERVICES2,060 sh	2,060	$1.6M
Sigma Planning2,012 sh	2,012	$1.6M
1832 Asset Management L.P.2,000 sh	2,000	$1.5M
Odyssean1,957 sh	1,957	$1.5M
ALTFEST L J1,930 sh	1,930	$1.5M
SummitTX Capital, L.P.1,713 sh	1,713	$1.3M
Gilbert & Cook1,695 sh	1,695	$1.3M
BLUE JEAN FINANCIAL1,663 sh	1,663	$1.3M
Cumberland Partners Ltd1,500 sh	1,500	$1.2M
Spartan Wealth Advisory Services1,494 sh	1,494	$1.2M
Oasis Advisors1,440 sh	1,440	$1.1M
SEGALL BRYANT & HAMILL1,311 sh	1,311	$1.0M
EVOKE WEALTH1,150 sh	1,150	$888.6K
Fairvoy Private Wealth1,092 sh	1,092	$843.7K
DAYMARK WEALTH PARTNERS943 sh	943	$729.0K
BEESE FULMER INVESTMENT MANAGEMENT882 sh	882	$681.5K
GenTrust859 sh	859	$663.8K
AMERICAN ASSETS7,000 sh	7,000	$647.5K
Integrated Advisors Network828 sh	828	$639.4K
LECAP ASSET MANAGEMENT LTD816 sh	816	$630.5K
EARNED WEALTH ADVISORS785 sh	785	$606.5K
DLK Investment Management765 sh	765	$591.1K
Jackson Creek Investment Advisors748 sh	748	$578.0K
MONETARY MANAGEMENT GROUP712 sh	712	$550.1K
Abundance Wealth Counselors649 sh	649	$501.4K
WEDBUSH SECURITIES634 sh	634	$490.0K
Wick Capital Partners606 sh	606	$468.0K
GAM Holding AG586 sh	586	$452.8K
Ausdal Financial Partners561 sh	561	$434.0K
Kaufman Rossin Wealth559 sh	559	$432.3K
Northwest & Ethical Investments L.P.561 sh	561	$428.2K
JACKSON SQUARE CAPITAL527 sh	527	$407.2K
DRW Securities528 sh	528	$405.0K
Samalin Investment Counsel511 sh	511	$394.9K
Allegiance Financial Group Advisory Services511 sh	511	$394.8K
NORTHWEST WEALTH MANAGEMENT503 sh	503	$388.6K
Tuttle Capital Management492 sh	492	$380.1K
Lighthouse Investment Partners485 sh	485	$374.7K
MBL Wealth480 sh	480	$370.9K
Golden State Equity Partners476 sh	476	$367.8K
Arjuna Capital457 sh	457	$353.1K
Asset Allocation & Management Company423 sh	423	$327.0K
DRIVE WEALTH MANAGEMENT420 sh	420	$324.6K
Symphony Financial, Ltd.404 sh	404	$311.8K
Persistent Asset Partners Ltd400 sh	400	$309.1K
Lombard Odier Asset Management (USA)395 sh	395	$305.2K
PATTON FUND MANAGEMENT391 sh	391	$302.1K
VestGen Advisors414 sh	414	$299.6K
LifeGoal Investments385 sh	385	$299.2K
Focused Wealth Management384 sh	384	$296.5K
Ocean Park Asset Management375 sh	375	$289.7K
FAMILY WEALTH PARTNERS375 sh	375	$289.7K
Aprio Wealth Management364 sh	364	$281.5K
SIMON QUICK ADVISORS347 sh	347	$268.1K
Americana Partners338 sh	338	$261.2K
Weiss Asset Management336 sh	336	$259.6K
Greenline Wealth Management332 sh	332	$256.5K
SAPIENT CAPITAL325 sh	325	$251.1K
ALPINE WOODS CAPITAL INVESTORS320 sh	320	$247.2K
Penobscot Investment Management Company320 sh	320	$247.2K
BlueSky Wealth Advisors320 sh	320	$247.2K
STONEBRIDGE CAPITAL MANAGEMENT320 sh	320	$247.2K
Montecito Bank317 sh	317	$244.9K
Choate Investment Advisors316 sh	316	$244.2K
LGT Fund Management Ltd.314 sh	314	$242.6K
Income Insurance Ltd312 sh	312	$241.1K
WILLNER & HELLER311 sh	311	$240.3K
Purus Wealth Management310 sh	310	$239.5K
Root Financial Partners309 sh	309	$238.7K
MCCARTER PRIVATE WEALTH SERVICES309 sh	309	$238.7K
Pacific Sage Partners308 sh	308	$238.0K
Haverford304 sh	304	$234.9K
Bell Bank301 sh	301	$232.6K
Berger Financial Group300 sh	300	$231.8K
Cornerstone Wealth Management300 sh	300	$231.8K

And 69 smaller positions.

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.