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Regeneron Pharmaceuticals, Inc.

REGN
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0000872589

In the last 90 days, Regeneron Pharmaceuticals, Inc. insiders filed 0 open-market purchases and 11 sales; 1,348 institutions reported holding it in 13F filings for Q2 2026, worth $57.1B in total; Southeastern Asset Management (Longleaf) is the only superinvestor holding it.

Key figures

Market capNo recent share count in SEC filings
–
Insider buysOpen market, last 90 days
0
Insider sellsLast 90 days, $51.9M in total
11
13F holdersQ2 2026, −44 vs. previous quarter
1,348
13F valueReported value at the end of Q2 2026
$57.1B
Superinvestors holdingAt the end of Q2 2026
1

Price chart

From SEC filings, in USD.

Revenue, FY2025
$14.3B
+1.0% year over year
Net income, FY2025
$4.50B
+2.1% year over year
Free cash flow, FY2025
$4.08B
+11.3% year over year
Revenue, Q3 FY2026
$5.12B
+36.3% year over year

Revenue flow, FY2025

Green is profit; orange is costs, expenses and taxes. Percentages are shares of revenue.

Short interest

See short data

From FINRA, settlement date Oct 30, 2026.

Short interest
2.22M
Shares sold short
Change
+82.2K
+3.9% vs. previous
Days to cover
2.73
At average daily volume

Superinvestors holding REGN, Q2 2026

Go to the superinvestors tab

1 superinvestor reports holding Regeneron Pharmaceuticals, Inc. on Form 13F. Percentages are the stock's share of each portfolio.

Southeastern Asset Management (Longleaf)

Mason Hawkins

5.0%

Regeneron Pharmaceuticals, Inc.'s share of the portfolio

Shares
152,322
Value
$95.0M

Latest insider trades

See all insider trades

Open-market purchases and sales by Regeneron Pharmaceuticals, Inc. insiders from Form 4, newest first.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Nov 6, 2026 (view filing)4:01 PM ETNov 42 daysPitofsky JasonSVP ControllerSSale−3.88K$941.79−$3.66M−47.6%4.27K after7 lots
Nov 6, 2026 (view filing)4:01 PM ETNov 42 daysPitofsky JasonSVP ControllerSSale−179$950.76−$170.2K−100.0%0 after
Nov 5, 2026 (view filing)4:05 PM ETNov 32 daysZoghbi Huda YDirectorSSale−7.44K$970.46−$7.22M−81.4%1.70K after2 lots
Nov 4, 2026 (view filing)4:11 PM ETNov 22 daysSing George LDirectorSSale−21.1K$964.38−$20.4M−45.7%25.1K after9 lots
Nov 4, 2026 (view filing)4:09 PM ETNov 22 daysPoon Christine ADirectorSSale−7.83K$969.09−$7.59M−60.0%5.22K after6 lots
Nov 4, 2026 (view filing)4:04 PM ETNov 22 daysLarosa Joseph JEVP General Counsel and SecretSSale−4.47K$965.49−$4.31M−10.3%38.9K after2 lots
Nov 3, 2026 (view filing)4:22 PM ETOct 304 daysGuarini KathrynDirectorSSale−400$900.00−$360.0K−39.9%603 after10b5-1
Nov 3, 2026 (view filing)4:05 PM ETOct 304 daysBrown Michael SDirectorSSale−1.93K$875.00−$1.69M−58.3%1.38K after10b5-1
Nov 3, 2026 (view filing)4:02 PM ETOct 304 daysMcCourt MarionEVP CommercialSSale−1.13K$869.43−$984.2K−9.4%10.9K after10b5-1
Oct 15, 2026 (view filing)4:02 PM ETOct 141 dayMurphy Andrew JCo-Chief Scientific OfficerSSale−4.15K$772.70−$3.20M−8.0%47.8K after27 lots10b5-1

Top 10 13F holders, Q2 2026

See all 1,348 holders

The largest institutional positions in Regeneron Pharmaceuticals, Inc. at the end of Q2 2026; share changes are against Q1 2026.

Institutions holding REGN in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock, Inc.9,113,506$5.68B0.08%+165,771+1.9%Added
Vanguard Capital Management LLC6,629,759$4.13B0.09%−25,154−0.4%Reduced
Dodge & Cox4,871,137$3.04B1.59%+412,899+9.3%Added
State Street Corp4,834,688$3.01B0.09%+170,210+3.6%Added
Invesco Ltd.3,940,665$2.46B0.19%+35,556+0.9%Added
JPMorgan Chase & Co3,774,199$2.38B0.14%−537,607−12.5%Reduced
Vanguard Portfolio Management LLC3,175,313$1.98B0.09%+1,454,539+84.5%Added
Franklin Resources Inc2,771,839$1.73B0.37%+49,768+1.8%Added
Geode Capital Management, LLC2,625,810$1.63B0.09%+18,078+0.7%Added
Nuveen, LLC2,019,974$1.26B0.30%−45,090−2.2%Reduced

Holders of 5% or more of REGN

See all 1 holders and filings

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Regeneron Pharmaceuticals, Inc..

Largest holders of REGN from 13D and 13G filings
HolderLatest formStakeChangeFirst filedLatest filingFiling
Vanguard Capital Management LLC13G7.37%7.66M sharesNewApr 30, 20261 filingApr 30, 2026SEC

15 members of Congress reported 60 trades in Regeneron Pharmaceuticals, Inc. since 2020. Newest filings:

  1. Alan Armstrong

    Senate · OK · Jul 21, 2026

    Buy$1K-$15K

  2. Gilbert Ray Cisneros, Jr.

    House · CA · Jun 8, 2026

    Sell$1K-$15K

  3. Julia Letlow

    House · LA · Mar 12, 2026

    Buy$1K-$15K

  4. Gilbert Ray Cisneros, Jr.

    House · CA · Dec 15, 2025

    Buy$1K-$15K

  5. Robert P. Bresnahan, Jr.

    House · PA · Jun 9, 2025

    Buy$1K-$15K