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REGN

Ticker case file

REGN

REGENERON PHARMACEUTICALS

13FSmart MoneyPublic Filings
$618.95+2.66%NMS

Tracked funds

13Unique WSM-tracked managers; table rows may include common shares and options

Politicians active

3Recent transactions disclosed via House Clerk / Senate eFD

13F notional

$5.2B2026-03-31

Top conviction

2.0%max % across any fund's portfolio
Source layer

This page is the WSM tracked universe, not market-wide ownership. 13F rows are quarterly snapshots, about 45 days delayed; PTR rows are event-based public disclosures.

13F filing

Funds holding this ticker

21
Manager13F valueConvictionClassOptionReportedSEC filing
Loomis, Sayles & Company, L.P.Semis$1.5B2.0%SH2026-03-31SEC filing
FMR LLCSemis$1.2B0.06%SH2026-03-31SEC filing
Capital World InvestorsSemis$1.1B0.15%SH2026-03-31SEC filing
Two Sigma Investments, LPSemis$627.6M0.51%SH2026-03-31SEC filing
Citadel Advisors LLCSemis$165.1M0.03%SHCALL2026-03-31SEC filing
Citadel Advisors LLCHedge$133.2M0.02%SHPUT2026-03-31SEC filing
Point72 Asset Management, L.P.Hedge$111.1M0.14%SHPUT2026-03-31SEC filing
Jennison Associates LLCSemis$89M0.06%SH2026-03-31SEC filing
ClearBridge Investments, LLCSemis$57M0.05%SH2026-03-31SEC filing
Renaissance Technologies LLCSemis$51.6M0.08%SH2026-03-31SEC filing
Millennium Management LLCSemis$48.5M0.02%SH2026-03-31SEC filing
Citadel Advisors LLCSemis$36.8M0.01%SH2026-03-31SEC filing
Millennium Management LLCHedge$31.9M0.01%SHPUT2026-03-31SEC filing
Millennium Management LLCSemis$21.8M0.01%SHCALL2026-03-31SEC filing
Bridgewater Associates, LPSemis$17.6M0.08%SH2026-03-31SEC filing
OrbiMed Advisors LLCSemis$11.4M0.23%SH2026-03-31SEC filing
Point72 Asset Management, L.P.Semis$3.6M0.00%SHCALL2026-03-31SEC filing
Point72 Asset Management, L.P.Semis$1.7M0.00%SH2026-03-31SEC filing
Balyasny Asset Management L.P.Semis$1.3M0.00%SHCALL2026-03-31SEC filing
Balyasny Asset Management L.P.Semis$1.2M0.00%SH2026-03-31SEC filing
Balyasny Asset Management L.P.Hedge$772.6K0.00%SHPUT2026-03-31SEC filing

Politician

Politician PTR activity

5
Public datePoliticianActionOwnerAmount rangeFiling
2026-03-12Julia Letlow HouseholdR · LA-05PurchaseSelf$1K–$15K20034106
2025-06-09Rob Bresnahan HouseholdR · PA-08PurchaseSelf$1K–$15K20030482
2025-05-24Byron Donalds HouseholdR · FL-19SaleSelf$1K–$15K20030342
2025-05-24Byron Donalds HouseholdR · FL-19SaleSelf$1K–$15K20030342
2025-05-08Rob Bresnahan HouseholdR · PA-08SaleSelf$1K–$15K20030291

Combined activity

13F filings + PTR transactions, newest first