Security record · archived quarter

REGN

Regeneron Pharmaceuticals, Inc. · Healthcare · Biotechnology

805.02 -1.7% mkt cap $82.88B quote delayed (FMP) · as of Oct 25 03:59 UTC · separate from filing data below

Q3 2026 Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024

172Tracked holders

-4Δ holders

77.87MShares held

$60.04BReported value

+2New positions

−7Exits

Stable Conviction score 38/100 How these are computed → Explain this at the Research Desk →

Momentum inputs (comparable managers): holder breadth -2.3% · share flow +0.7% · net new positions -2.9% · formula
Concentrated accumulation: rising shares among fewer holders

All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026

Ownership over time

Quarter	Holders	Δ	Shares	Reported value	New	Exits
Q3 2026	5	-2	489.34K	$362.44M	n/a	−2
Q2 2026	169	-1	76.12M	$47.53B	+5	−5
Q1 2026	172	-4	77.87M	$60.04B	+2	−7
Q4 2025	175	0	81.03M	$62.54B	+1	n/a
Q3 2025	27	-1	48.96M	$27.52B	n/a	−2
Q2 2025	26	+2	40.24M	$21.12B	+3	−1
Q1 2025	21	+1	16.62M	$10.53B	+1	n/a
Q4 2024	20	-1	17.24M	$12.28B	n/a	−1
Q3 2024	20	+1	13.10M	$13.76B	+2	−1
Q2 2024	19	n/a	13.77M	$14.47B	n/a	n/a

Holder count

Who holds it · Q1 2026

#	Manager	Shares	Δ shares	Value	Their weight		Held
1	BlackRock ✦ (passive)	8.95M	+2.4%	$6.91B	0.1%	▲ Add	4	SEC ↗ ×22
2	Vanguard Capital Management Llc	6.65M	n/a	$5.14B	0.1%	n/c	1	SEC ↗
3	State Street Global Advisors ✦ (passive)	4.66M	+0.1%	$3.60B	0.1%	▲ Add	6	SEC ↗
4	Dodge & Cox ✦	4.46M	-3.0%	$3.44B	1.9%	▼ Trim	8	SEC ↗
5	JPMorgan Chase ✦	4.31M	+9.4%	$3.23B	0.2%	▲ Add	3	SEC ↗ ×20
6	Invesco Ltd.	3.91M	-0.2%	$3.02B	0.3%	▼ Trim	2	SEC ↗ ×22
7	Franklin Resources Inc	2.72M	+6.3%	$2.10B	0.5%	▲ Add	2	SEC ↗ ×15
8	Geode Capital Management ✦ (passive)	2.61M	+3.5%	$2.01B	0.1%	▲ Add	8	SEC ↗ ×2
9	T. Rowe Price ✦	2.18M	+11.7%	$1.68B	0.2%	▲ Add	8	SEC ↗ ×2
10	Nuveen, LLC	2.07M	+2.7%	$1.60B	0.4%	▲ Add	2	SEC ↗ ×3
11	Loomis Sayles & Co L P	1.91M	-1.1%	$1.48B	2.0%	▼ Trim	2	SEC ↗ ×2
12	Wellington Management ✦	1.84M	+176.5%	$1.42B	0.3%	▲ Add	8	SEC ↗ ×8
13	Fidelity (FMR) ✦	1.52M	-34.5%	$1.17B	0.1%	▼ Trim	4	SEC ↗ ×7
14	Capital World Investors ✦	1.42M	+1.5%	$1.10B	0.1%	▲ Add	8	SEC ↗
15	Morgan Stanley ✦	1.32M	-5.0%	$1.02B	0.1%	▼ Trim	3	SEC ↗ ×18
16	Goldman Sachs Group ✦	1.30M	+18.5%	$1.00B	0.1%	▲ Add	3	SEC ↗ ×7
17	AQR Capital Management ✦	1.23M	+23.6%	$946.01M	0.4%	▲ Add	8	SEC ↗ ×12
18	Bank Of America Corp /De/	1.19M	+2.8%	$919.12M	0.1%	▲ Add	2	SEC ↗ ×8
19	Amundi	1.01M	+27.5%	$780.21M	0.2%	▲ Add	2	SEC ↗ ×6
20	Northern Trust Corp	941.94K	-0.3%	$727.78M	0.1%	▼ Trim	2	SEC ↗ ×8
21	Two Sigma Investments ✦	812.24K	+188.9%	$627.57M	0.5%	▲ Add	7	SEC ↗
22	Charles Schwab Investment…	804.51K	+3.4%	$621.60M	0.1%	▲ Add	2	SEC ↗
23	Bank of New York Mellon Corp	765.41K	+0.1%	$591.39M	0.1%	▲ Add	2	SEC ↗ ×19
24	Legal & General Group Plc	732.05K	-1.5%	$565.61M	0.1%	▼ Trim	2	SEC ↗ ×3
25	UBS AM, a distinct business unit of…	723.62K	-2.9%	$559.10M	0.1%	▼ Trim	2	SEC ↗ ×11
26	Deutsche Bank Ag\	625.39K	-18.1%	$483.20M	0.2%	▼ Trim	2	SEC ↗ ×15
27	American Century Companies Inc	562.10K	+1.9%	$434.30M	0.2%	▲ Add	2	SEC ↗
28	Dimensional Fund Advisors Lp	513.06K	+2.7%	$396.29M	0.1%	▲ Add	2	SEC ↗ ×5
29	Bnp Paribas Financial Markets	448.37K	+1.7%	$346.43M	0.2%	▲ Add	2	SEC ↗
30	Neuberger Berman Group LLC	427.13K	+1.2%	$330.07M	0.3%	▲ Add	2	SEC ↗ ×2
31	Alliancebernstein L.P.	426.91K	-10.8%	$329.52M	0.1%	▼ Trim	2	SEC ↗
32	Manufacturers Life Insurance…	408.93K	-2.9%	$315.95M	0.3%	▼ Trim	2	SEC ↗
33	National Pension Service	371.55K	+2.9%	$287.08M	0.2%	▲ Add	2	SEC ↗
34	Pacer Advisors, Inc.	358.63K	-9.8%	$277.09M	0.8%	▼ Trim	2	SEC ↗
35	Royal Bank Of Canada	351.17K	+1.7%	$271.33M	0.1%	▲ Add	2	SEC ↗ ×9
36	Td Asset Management Inc	350.92K	-11.7%	$271.14M	0.2%	▼ Trim	2	SEC ↗
37	Voya Investment Management Llc	349.91K	+19.0%	$270.13M	0.3%	▲ Add	2	SEC ↗ ×3
38	Robeco Institutional Asset…	348.79K	+33.2%	$269.49M	0.4%	▲ Add	2	SEC ↗
39	First Trust Advisors Lp	346.86K	+68.6%	$267.99M	0.2%	▲ Add	2	SEC ↗
40	Pictet Asset Management Holding SA	337.25K	-8.3%	$258.36M	0.3%	▼ Trim	2	SEC ↗
41	Caisse De Depot Et Placement Du…	329.02K	-3.9%	$254.21M	0.4%	▼ Trim	2	SEC ↗
42	Hsbc Holdings Plc	323.34K	-49.3%	$249.73M	0.1%	▼ Trim	2	SEC ↗ ×7
43	Ameriprise Financial Inc	319.68K	+9.5%	$247.13M	0.1%	▲ Add	2	SEC ↗ ×6
44	Man Group plc	315.21K	+44.5%	$243.55M	0.5%	▲ Add	2	SEC ↗ ×2
45	Barclays Plc	313.09K	+0.6%	$241.91M	0.1%	▲ Add	2	SEC ↗ ×6
46	FIL Ltd	309.51K	-41.5%	$239.14M	0.2%	▼ Trim	2	SEC ↗
47	Swiss National Bank	303.14K	+6.2%	$234.22M	0.1%	▲ Add	2	SEC ↗
48	Allianz Asset Management GmbH	301.20K	+78.6%	$232.72M	0.3%	▲ Add	2	SEC ↗ ×5
49	UBS Group AG	299.98K	+10.6%	$231.78M	0.0%	▲ Add	2	SEC ↗ ×10
50	Sumitomo Mitsui Trust Group, Inc.	273.67K	-4.0%	$211.45M	0.1%	▼ Trim	2	SEC ↗
51	BNP Paribas Asset Management…	273.12K	+10.8%	$211.00M	0.2%	▲ Add	2	SEC ↗ ×3
52	Federated Hermes, Inc.	254.95K	+3.4%	$196.98M	0.3%	▲ Add	2	SEC ↗ ×4
53	Mitsubishi UFJ Asset Management…	240.60K	+7.0%	$185.90M	0.1%	▲ Add	2	SEC ↗
54	Russell Investments Group, Ltd.	228.09K	+3.2%	$175.72M	0.2%	▲ Add	2	SEC ↗ ×22
55	California Public Employees…	218.77K	+8.8%	$169.03M	0.1%	▲ Add	2	SEC ↗
56	Swedbank AB	215.59K	-5.3%	$166.57M	0.2%	▼ Trim	2	SEC ↗
57	Janus Henderson Group Plc	209.25K	+1.7%	$161.64M	0.1%	▲ Add	2	SEC ↗ ×3
58	Assenagon Asset Management S.A.	207.79K	-10.9%	$160.55M	0.3%	▼ Trim	2	SEC ↗
59	Chevy Chase Trust Holdings, LLC	205.83K	+2.5%	$159.03M	0.5%	▲ Add	2	SEC ↗ ×2
60	Canada Pension Plan Investment Board	187.55K	+11.4%	$144.91M	0.1%	▲ Add	2	SEC ↗
61	Citigroup Inc	184.69K	-24.7%	$142.70M	0.1%	▼ Trim	2	SEC ↗ ×3
62	Arrowstreet Capital ✦	171.57K	-11.9%	$132.56M	0.1%	▼ Trim	4	SEC ↗
63	Raymond James Financial Inc	165.54K	+10.7%	$127.90M	0.0%	▲ Add	2	SEC ↗ ×4
64	Squarepoint Ops LLC	162.81K	+5961.6%	$125.80M	0.3%	▲ Add	2	SEC ↗
65	Rhumbline Advisers	157.78K	-1.9%	$121.91M	0.1%	▼ Trim	2	SEC ↗
66	California State Teachers…	154.20K	-2.8%	$119.14M	0.1%	▼ Trim	2	SEC ↗
67	ProShare Advisors LLC	152.40K	-17.3%	$117.75M	0.2%	▼ Trim	2	SEC ↗
68	Wells Fargo & Company/Mn	142.02K	+1.4%	$109.73M	0.0%	▲ Add	2	SEC ↗ ×5
69	Prudential Financial Inc	140.49K	+61.2%	$108.55M	0.1%	▲ Add	2	SEC ↗ ×2
70	National Bank Of Canada /Fi/	130.01K	+8.5%	$100.45M	0.1%	▲ Add	2	SEC ↗ ×4
71	Victory Capital Management Inc	129.07K	+15.3%	$99.73M	0.1%	▲ Add	2	SEC ↗
72	Mariner, LLC	123.95K	+30.2%	$95.73M	0.1%	▲ Add	2	SEC ↗ ×3
73	Aberdeen Group plc	121.34K	-25.0%	$93.76M	0.2%	▼ Trim	2	SEC ↗ ×3
74	Principal Financial Group Inc	120.42K	+0.7%	$93.05M	0.1%	▲ Add	2	SEC ↗ ×2
75	New York State Common Retirement…	117.37K	0.0%	$90.68M	0.1%	Held	2	SEC ↗
76	Jennison Associates Llc	115.20K	New	$89.01M	0.1%	New	1	SEC ↗
77	Universal- Beteiligungs- und…	109.72K	+0.8%	$84.89M	0.1%	▲ Add	2	SEC ↗
78	Envestnet Asset Management Inc	109.15K	+22.7%	$84.33M	0.0%	▲ Add	2	SEC ↗
79	Danske Bank A/S	107.22K	+8.0%	$82.84M	0.2%	▲ Add	2	SEC ↗ ×3
80	Adage Capital Partners ✦	103.10K	+25.1%	$79.66M	0.1%	▲ Add	8	SEC ↗
81	Capital Research Global Investors	101.89K	-1.4%	$78.72M	0.0%	▼ Trim	2	SEC ↗
82	Bank Of Nova Scotia	97.52K	-18.7%	$75.35M	0.1%	▼ Trim	2	SEC ↗
83	Parnassus Investments, Llc	97.50K	+1.0%	$75.33M	0.2%	▲ Add	2	SEC ↗
84	Nordea Investment Management Ab	94.32K	-31.3%	$72.40M	0.1%	▼ Trim	2	SEC ↗ ×3
85	PFA Pension, Forsikringsaktieselskab	92.86K	0.0%	$71.74M	0.2%	▲ Add	2	SEC ↗
86	Credit Agricole S A	92.42K	-15.2%	$71.40M	0.2%	▼ Trim	2	SEC ↗ ×3
87	Aviva Plc	91.18K	+2.9%	$70.45M	0.1%	▲ Add	2	SEC ↗
88	State Board Of Administration Of…	89.97K	-3.0%	$69.52M	0.1%	▼ Trim	2	SEC ↗
89	Zurcher Kantonalbank (Zurich…	88.87K	+9.4%	$68.67M	0.1%	▲ Add	2	SEC ↗
90	Mackenzie Financial Corp	86.32K	+9.6%	$66.69M	0.1%	▲ Add	2	SEC ↗
91	Bank Of Montreal /Can/	85.52K	-15.3%	$66.08M	0.0%	▼ Trim	2	SEC ↗ ×8
92	Mirae Asset Global Investments Co.…	84.61K	+9.6%	$65.37M	0.2%	▲ Add	2	SEC ↗ ×2
93	Qube Research & Technologies Ltd	83.36K	-41.4%	$64.41M	0.1%	▼ Trim	2	SEC ↗
94	Gotham Asset Management ✦	82.85K	+3.2%	$64.01M	0.2%	▲ Add	8	SEC ↗
95	Healthcare Of Ontario Pension Plan…	75.46K	-34.2%	$58.30M	0.1%	▼ Trim	2	SEC ↗
96	Sei Investments Co	75.00K	+32.5%	$57.95M	0.1%	▲ Add	2	SEC ↗ ×2
97	Clearbridge Investments, LLC	73.79K	+19.0%	$57.01M	0.1%	▲ Add	2	SEC ↗
98	Korea Investment CORP	73.06K	+5.5%	$56.45M	0.1%	▲ Add	2	SEC ↗
99	MIRAE ASSET GLOBAL ETFS HOLDINGS…	69.85K	+1.0%	$53.96M	0.1%	▲ Add	2	SEC ↗ ×3
100	Renaissance Technologies ✦	66.80K	+635.5%	$51.61M	0.1%	▲ Add	8	SEC ↗

“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.

New buyers

Jennison Associates Llc	$89.01M	0.1%

Exited

Norges Bank	$1.01B	was 0.1%
Holocene Advisors, LP	$355.62M	was 0.8%
Simplex Trading, Llc	$6.61M	was 0.2%
Capstone Investment Advisors…	$394,426	was 0.0%
Parallax Volatility Advisers…	$247,770	was 0.0%
Optiver Holding B.V.	$141,252	was 0.0%
ARK Investment Management	$84,651	was 0.0%

Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1,385 holders, 83.52M shares, $61.43B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.

Frequently co-owned

What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.

BSX172shared holders MSFT172shared holders META172shared holders AVGO171shared holders LLY171shared holders

Insider transactions

Open-market purchases (P)

No open-market insider purchases in our coverage window.

Open-market sales (S)

Oct 14 MURPHY ANDREW J

Officer · 50 sh · $39,074

Oct 14 MURPHY ANDREW J

Officer · 127 sh · $97,701

Oct 14 MURPHY ANDREW J

Officer · 12 sh · $9,242

Oct 14 MURPHY ANDREW J

Officer · 283 sh · $218,351

Oct 14 MURPHY ANDREW J

Officer · 211 sh · $163,010

Oct 14 MURPHY ANDREW J

Officer · 224 sh · $173,242

Oct 14 MURPHY ANDREW J

Officer · 121 sh · $93,712

Oct 14 MURPHY ANDREW J

Officer · 376 sh · $291,573

Oct 14 MURPHY ANDREW J

Officer · 66 sh · $51,236

Oct 14 MURPHY ANDREW J

Officer · 38 sh · $29,555

Awards, exercises and tax withholding are never counted as buys or sales here. Methodology

Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR. Reporting period: Q1 2026 · Methodology · Get this via the API

☆ REGN

New buyers

Exited

Open-market purchases (P)

Open-market sales (S)

REGN