REGENERON PHARMACEUTICALS, INC. (REGN) — Institutional Holders, Q2 2026 (page 6)

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 501 to 600. 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 13F holders ranked 501–600 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
501	Machina Capital S.A.S.#501 · 3,827 sh	3,827	$2.4M	0.38%	+494.3%
502	MONARCH CAPITAL MANAGEMENT#502 · 3,816 sh	3,816	$2.4M	—	+19.1%
503	BANQUE PICTET & CIE SA#503 · 3,713 sh	3,713	$2.3M	—	-62.5%
504	Polymer Capital Management (HK) LTD#504 · 3,704 sh	3,704	$2.3M	0.12%	+194.2%
505	QUADRANT CAPITAL GROUP#505 · 3,691 sh	3,691	$2.3M	—	-49.8%
506	GROUP ONE TRADING, L.P.#506 · 3,668 sh	3,668	$2.3M	<0.01%	-32.1%
507	Legato Capital Management#507 · 3,664 sh	3,664	$2.3M	0.19%	-39.0%
508	Stiles Financial Services#508 · 3,564 sh	3,564	$2.2M	0.56%	-2.4%
509	Cache Advisors#509 · 3,548 sh	3,548	$2.2M	—	0.0%
510	Murphy Pohlad Asset Management#510 · 3,508 sh	3,508	$2.2M	—	0.0%
511	New England Research & Management#511 · 3,475 sh	3,475	$2.2M	—	+504.3%
512	Family Management#512 · 3,424 sh	3,424	$2.1M	0.22%	-9.8%
513	BAILARD#513 · 3,376 sh	3,376	$2.1M	—	-0.1%
514	Morningstar Investment Management#514 · 2,705 sh	2,705	$2.1M	0.13%	0.0%
515	Merit Financial Group#515 · 3,333 sh	3,333	$2.1M	0.01%	-40.3%
516	TOCQUEVILLE ASSET MANAGEMENT L.P.#516 · 3,315 sh	3,315	$2.1M	0.03%	-79.0%
517	Lombard Odier Asset Management (Switzerland) SA#517 · 3,314 sh	3,314	$2.1M	0.07%	-14.7%
518	Verition Fund Management#518 · 3,312 sh	3,312	$2.1M	<0.01%	+124.1%
519	BOOTHBAY FUND MANAGEMENT#519 · 3,312 sh	3,312	$2.1M	0.03%	+11.4%
520	Johnson Financial Group#520 · 3,250 sh	3,250	$2.0M	0.07%	-4.9%
521	NORTHWESTERN MUTUAL INVESTMENT MANAGEMENT COMPANY#521 · 3,204 sh	3,204	$2.0M	0.02%	-0.7%
522	LOCKHEED MARTIN INVESTMENT MANAGEMENT#522 · 3,200 sh	3,200	$2.0M	0.08%	-9.6%
523	Y-Intercept (Hong Kong) Ltd#523 · 3,198 sh	3,198	$2.0M	—	New
524	111 Capital#524 · 3,185 sh	3,185	$2.0M	0.34%	+242.8%
525	SIMPLEX TRADING#525 · 3,172 sh	3,172	$2.0M	<0.01%	New
526	Financiere des Professionnels - Fonds d,investissement#526 · 3,171 sh	3,171	$2.0M	0.11%	0.0%
527	Summit Trail Advisors#527 · 3,083 sh	3,083	$1.9M	0.02%	+2.2%
528	Element Squared#528 · 3,083 sh	3,083	$1.9M	0.96%	+5.0%
529	Howard Capital Management#529 · 3,077 sh	3,077	$1.9M	—	+129.6%
530	Greenfield Seitz Capital Management#530 · 3,074 sh	3,074	$1.9M	0.57%	+2.0%
531	Joel Isaacson#531 · 3,067 sh	3,067	$1.9M	0.06%	0.0%
532	FIRST FOUNDATION ADVISORS#532 · 3,052 sh	3,052	$1.9M	0.07%	0.0%
533	North Dakota State Investment Board#533 · 3,017 sh	3,017	$1.9M	0.08%	+2.6%
534	MUFG SECURITIES AMERICAS#534 · 3,010 sh	3,010	$1.9M	0.10%	+7.9%
535	Forvis Mazars Wealth Advisors#535 · 3,009 sh	3,009	$1.9M	—	-1.1%
536	Traynor Capital Management#536 · 3,005 sh	3,005	$1.9M	0.09%	-90.5%
537	LBP AM SA#537 · 3,005 sh	3,005	$1.9M	0.02%	+13.1%
538	Maxi Investments CY Ltd#538 · 3,000 sh	3,000	$1.9M	—	New
539	American Assets Investment Management#539 · 3,000 sh	3,000	$1.9M	0.11%	0.0%
540	TRIGLAV SKLADI, D.O.O.#540 · 3,000 sh	3,000	$1.9M	0.10%	0.0%
541	AXQ CAPITAL#541 · 2,952 sh	2,952	$1.8M	0.20%	New
542	Sterling Investment Advisors, Ltd.#542 · 2,947 sh	2,947	$1.8M	0.31%	-5.6%
543	Capital Group Investment Management Pte. Ltd.#543 · 2,938 sh	2,938	$1.8M	0.28%	0.0%
544	Heritage#544 · 2,898 sh	2,898	$1.8M	0.16%	+9.1%
545	Kestra Advisory Services#545 · 2,893 sh	2,893	$1.8M	<0.01%	-35.3%
546	Banque Cantonale Vaudoise#546 · 2,883 sh	2,883	$1.8M	0.07%	+46.3%
547	SECURIAN ASSET MANAGEMENT#547 · 2,641 sh	2,641	$1.8M	0.06%	-3.6%
548	Concurrent Investment Advisors#548 · 2,839 sh	2,839	$1.8M	—	+44.3%
549	PEAPACK GLADSTONE FINANCIAL#549 · 2,837 sh	2,837	$1.8M	0.02%	+0.5%
550	Harel Insurance Investments & Financial Services Ltd.#550 · 2,822 sh	2,822	$1.8M	<0.01%	+34.1%
551	Osmosis Investment Management UK Ltd#551 · 2,817 sh	2,817	$1.8M	0.08%	-52.4%
552	Cresset Asset Management#552 · 2,803 sh	2,803	$1.7M	<0.01%	+10.5%
553	MASTERINVEST Kapitalanlage GmbH#553 · 2,772 sh	2,772	$1.7M	0.15%	+1.3%
554	Snowden Capital Advisors#554 · 2,732 sh	2,732	$1.7M	0.04%	-4.6%
555	Game Creek Capital#555 · 2,725 sh	2,725	$1.7M	0.60%	-50.7%
556	Pinnacle Wealth Management Advisory Group#556 · 2,713 sh	2,713	$1.7M	—	+12.3%
557	HB Wealth Management#557 · 2,712 sh	2,712	$1.7M	—	-21.1%
558	Intellectus Partners#558 · 2,696 sh	2,696	$1.7M	0.29%	-0.7%
559	Sequoia Financial Advisors#559 · 2,687 sh	2,687	$1.7M	<0.01%	-15.7%
560	Kentucky Retirement Systems Insurance Fund#560 · 2,659 sh	2,659	$1.7M	0.10%	-3.1%
561	UNITED CAPITAL FINANCIAL ADVISORS#561 · 2,651 sh	2,651	$1.7M	<0.01%	-9.8%
562	BENJAMIN EDWARDS#562 · 2,613 sh	2,613	$1.6M	0.01%	+27.3%
563	MEYER HANDELMAN#563 · 2,609 sh	2,609	$1.6M	0.05%	+1.1%
564	SHUFRO ROSE#564 · 2,602 sh	2,602	$1.6M	0.09%	+0.2%
565	Canada Post Registered Pension Plan#565 · 2,575 sh	2,575	$1.6M	0.06%	0.0%
566	Sound View Wealth Advisors Group#566 · 2,558 sh	2,558	$1.6M	0.10%	+4.6%
567	DARK FOREST CAPITAL MANAGEMENT#567 · 2,547 sh	2,547	$1.6M	0.10%	+452.5%
568	Allworth Financial#568 · 2,530 sh	2,530	$1.6M	<0.01%	-15.4%
569	Blackstone#569 · 2,516 sh	2,516	$1.6M	<0.01%	New
570	Mezzasalma Advisors#570 · 2,500 sh	2,500	$1.6M	—	0.0%
571	Diversified#571 · 2,481 sh	2,481	$1.5M	0.02%	-0.9%
572	Palouse Capital Management#572 · 2,479 sh	2,479	$1.5M	0.96%	+6.2%
573	Bluebird Wealth Management#573 · 2,472 sh	2,472	$1.5M	1.34%	-4.0%
574	FAYEZ SAROFIM#574 · 2,460 sh	2,460	$1.5M	<0.01%	0.0%
575	Integrated Wealth Concepts#575 · 2,446 sh	2,446	$1.5M	<0.01%	-41.8%
576	Metis Global Partners#576 · 2,439 sh	2,439	$1.5M	0.03%	-45.2%
577	Caprock Group#577 · 2,437 sh	2,437	$1.5M	0.03%	-12.0%
578	Laird Norton Wetherby Company#578 · 2,419 sh	2,419	$1.5M	0.03%	-8.2%
579	PHILADELPHIA#579 · 2,410 sh	2,410	$1.5M	0.10%	-0.2%
580	Perpetual Ltd#580 · 2,407 sh	2,407	$1.5M	—	+12.2%
581	Wahed Invest#581 · 2,405 sh	2,405	$1.5M	0.16%	-7.1%
582	OPPENHEIMER ASSET MANAGEMENT#582 · 2,398 sh	2,398	$1.5M	0.02%	-0.3%
583	TOBAM#583 · 2,394 sh	2,394	$1.5M	0.36%	+297.0%
584	BLAIR WILLIAM#584 · 2,384 sh	2,384	$1.5M	<0.01%	+74.8%
585	HARBOR INVESTMENT ADVISORY#585 · 2,382 sh	2,382	$1.5M	—	-4.0%
586	Advisors Asset Management#586 · 2,379 sh	2,379	$1.5M	0.02%	-22.9%
587	Aster Capital Management (DIFC) Ltd#587 · 2,374 sh	2,374	$1.5M	0.31%	New
588	Belpointe Asset Management#588 · 2,371 sh	2,371	$1.5M	0.05%	+7.1%
589	Generali Investments CEE, investicni spolecnost, a.s.#589 · 2,370 sh	2,370	$1.5M	—	+9.2%
590	CENTRAL BANK#590 · 2,357 sh	2,357	$1.5M	—	+0.3%
591	TEALWOOD ASSET MANAGEMENT#591 · 2,338 sh	2,338	$1.5M	—	-0.2%
592	Chicago Partners Investment Group#592 · 2,209 sh	2,209	$1.4M	—	+10.4%
593	Umpqua Bank#593 · 2,271 sh	2,271	$1.4M	0.32%	+9.9%
594	Vestmark Advisory Solutions#594 · 2,248 sh	2,248	$1.4M	0.01%	+20.4%
595	Gibbs Wealth Management#595 · 2,245 sh	2,245	$1.4M	—	-2.6%
596	KORNITZER CAPITAL MANAGEMENT#596 · 2,211 sh	2,211	$1.4M	0.03%	+6.6%
597	Kendall Capital Management#597 · 2,196 sh	2,196	$1.4M	—	+3.8%
598	Savvy Advisors#598 · 2,185 sh	2,185	$1.4M	0.03%	+0.2%
599	SECTORAL ASSET MANAGEMENT#599 · 2,169 sh	2,169	$1.4M	0.94%	-25.7%
600	Fifth Third Wealth Advisors#600 · 2,168 sh	2,168	$1.4M	—	-12.2%

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.