REGENERON PHARMACEUTICALS, INC.
Total Trades
254
Buys
0
Sells
157
Largest Trade
N/A
Insiders
20
Institutional Funds
1,228
Inst. Value
$1M+
Activist Filings
15
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| McCourt Marion | EVP Commercial | EXERCISE | $100K–$500K | 1K | $372.46 | Dec 2, 2022 |
| McCourt Marion | EVP Commercial | SELL | $500K+ | 1K | $756.19 | Dec 2, 2022 |
| Landry Robert E | EVP Finance CFO | EXERCISE | $500K+ | 3K | $381.92 | Dec 2, 2022 |
| Landry Robert E | EVP Finance CFO | SELL | $100K–$500K | 610 | $756.66 | Dec 2, 2022 |
| Van Plew Daniel P | EVP & General Mgr | EXERCISE | $1M+ | 50K | $378.98 | Nov 25, 2022 |
| Van Plew Daniel P | EVP & General Mgr | SELL | $1M+ | 12K | $740.75 | Nov 25, 2022 |
| MURPHY ANDREW J | EVP Research | EXERCISE | $1M+ | 10K | $179.13 | Nov 16, 2022 |
| MURPHY ANDREW J | EVP Research | SELL | $1M+ | 4K | $727.81 | Nov 16, 2022 |
| BROWN MICHAEL S | Director | SELL | $1M+ | 4K | $754.44 | Nov 10, 2022 |
| BROWN MICHAEL S | Director | EXERCISE | $1M+ | 4K | $416.62 | Nov 10, 2022 |
| Van Plew Daniel P | EVP & General Mgr | EXERCISE | $1M+ | 34K | $381.92 | Nov 8, 2022 |
| Van Plew Daniel P | EVP & General Mgr | SELL | $1M+ | 8K | $745.40 | Nov 8, 2022 |
| McCourt Marion | EVP Commercial | SELL | $500K+ | 1K | $727.82 | Nov 7, 2022 |
| McCourt Marion | EVP Commercial | EXERCISE | $100K–$500K | 1K | $372.46 | Nov 7, 2022 |
| RYAN ARTHUR F | Director | SELL | $50K–$100K | 100 | $755.89 | Nov 3, 2022 |
| Landry Robert E | EVP Finance CFO | EXERCISE | $500K+ | 2K | $381.92 | Nov 2, 2022 |
| Landry Robert E | EVP Finance CFO | SELL | $100K–$500K | 482 | $758.06 | Nov 2, 2022 |
| McCourt Marion | EVP Commercial | SELL | $500K+ | 1K | $750.00 | Nov 2, 2022 |
| McCourt Marion | EVP Commercial | EXERCISE | $100K–$500K | 1K | $372.46 | Nov 2, 2022 |
| Landry Robert E | EVP Finance CFO | SELL | $100K–$500K | 358 | $739.50 | Oct 18, 2022 |
| Landry Robert E | EVP Finance CFO | EXERCISE | $500K+ | 2K | $381.92 | Oct 18, 2022 |
| Fenimore Christopher R. | SVP Controller | SELL | $1M+ | 2K | $749.00 | Oct 7, 2022 |
| McCourt Marion | EVP Commercial | SELL | $500K+ | 1K | $705.39 | Oct 5, 2022 |
| McCourt Marion | EVP Commercial | EXERCISE | $100K–$500K | 1K | $359.04 | Oct 5, 2022 |
| Fenimore Christopher R. | SVP Controller | SELL | $1M+ | 3K | $724.00 | Oct 5, 2022 |
| RYAN ARTHUR F | Director | SELL | $50K–$100K | 100 | $726.54 | Oct 5, 2022 |
| Tessier-Lavigne Marc | Director | SELL | $1M+ | 11K | $702.24 | Oct 3, 2022 |
| Tessier-Lavigne Marc | Director | EXERCISE | $1M+ | 11K | $413.33 | Oct 3, 2022 |
| Van Plew Daniel P | EVP & General Mgr | EXERCISE | $1M+ | 40K | $555.67 | Sep 13, 2022 |
| Van Plew Daniel P | EVP & General Mgr | SELL | $1M+ | 5K | $716.38 | Sep 13, 2022 |
| Bassler Bonnie L | Director | EXERCISE | $1M+ | 3K | $388.99 | Sep 12, 2022 |
| Bassler Bonnie L | Director | SELL | $1M+ | 3K | $704.65 | Sep 12, 2022 |
| RYAN ARTHUR F | Director | SELL | $50K–$100K | 100 | $582.37 | Sep 8, 2022 |
| COLES N ANTHONY | Director | EXERCISE | $1M+ | 6K | $372.40 | Sep 8, 2022 |
| COLES N ANTHONY | Director | SELL | $1M+ | 6K | $581.28 | Sep 8, 2022 |
| McCourt Marion | EVP Commercial | EXERCISE | $100K–$500K | 1K | $342.93 | Sep 2, 2022 |
| McCourt Marion | EVP Commercial | SELL | $500K+ | 1K | $577.62 | Sep 2, 2022 |
| MURPHY ANDREW J | EVP Research | EXERCISE | $1M+ | 10K | $179.13 | Aug 17, 2022 |
| MURPHY ANDREW J | EVP Research | SELL | $1M+ | 4K | $645.49 | Aug 17, 2022 |
| POON CHRISTINE A | Director | SELL | $1M+ | 15K | $620.91 | Aug 11, 2022 |
| POON CHRISTINE A | Director | EXERCISE | $1M+ | 15K | $177.82 | Aug 11, 2022 |
| RYAN ARTHUR F | Director | EXERCISE | $1M+ | 10K | $413.26 | Aug 8, 2022 |
| RYAN ARTHUR F | Director | SELL | $1M+ | 10K | $621.29 | Aug 8, 2022 |
| STAHL NEIL | EVP Research and D… | SELL | $1M+ | 24K | $612.61 | Aug 8, 2022 |
| STAHL NEIL | EVP Research and D… | EXERCISE | $1M+ | 95K | $270.43 | Aug 8, 2022 |
| McCourt Marion | EVP Commercial | SELL | $500K+ | 1K | $581.53 | Aug 2, 2022 |
| McCourt Marion | EVP Commercial | EXERCISE | $100K–$500K | 1K | $342.93 | Aug 2, 2022 |
| McCourt Marion | EVP Commercial | EXERCISE | $100K–$500K | 1K | $342.93 | Jul 5, 2022 |
| McCourt Marion | EVP Commercial | SELL | $500K+ | 1K | $587.76 | Jul 5, 2022 |
| McCourt Marion | EVP Commercial | EXERCISE | $100K–$500K | 1K | $342.93 | Jun 3, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 1,228 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| STATE STREET CORP | 4.7M | $1M+ | SH |
| DODGE & COX | 4.6M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 2.2M | $1M+ | SH |
| LOOMIS SAYLES & CO L P | 1.7M | $1M+ | SH |
| Capital World Investors | 1.4M | $1M+ | SH |
| NORGES BANK | 1.3M | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 778K | $1M+ | SH |
| AMERICAN CENTURY COMPANIES INC | 551K | $1M+ | SH |
| ALLIANCEBERNSTEIN L.P. | 478K | $1M+ | SH |
| ACADIAN ASSET MANAGEMENT LLC | 446K | $1M+ | SH |
| BNP PARIBAS FINANCIAL MARKETS | 441K | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 423K | $1M+ | SH |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | 421K | $1M+ | SH |
| Neuberger Berman Group LLC | 417K | $1M+ | SH |
| Centiva Capital, LP | 407K | $1M+ | SH (Call) |
| Pacer Advisors, Inc. | 398K | $1M+ | SH |
| TD ASSET MANAGEMENT INC | 398K | $1M+ | SH |
| Pictet Asset Management Holding SA | 368K | $1M+ | SH |
| National Pension Service | 361K | $1M+ | SH |
| CAISSE DE DEPOT ET PLACEMENT DU QUEBEC | 342K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Aug 6, 2025
3.2%
3.4M shares
SC 13G/A · Jun 5, 2025
4.4%
4.7M shares
SC 13G/A · Apr 22, 2025
5.1%
5.5M shares
SC 13G/A · Feb 12, 2025
7.6%
8.2M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
8.3%
8.8M shares
Capital World Investors 95-1411037
SC 13G/A · Feb 9, 2024
4.8%
5.2M shares
SC 13G/A · Jan 25, 2024
8.1%
8.6M shares
JPMORGAN CHASE & CO. 13-2624428
SC 13G/A · Jan 25, 2024
6.7%
7.2M shares
JPMORGAN CHASE & CO. 13-2624428
SC 13G/A · Jan 25, 2024
6.7%
7.2M shares
Capital World Investors 95-1411037
SC 13G/A · Feb 13, 2023
5.9%
6.3M shares
SC 13G/A · Feb 3, 2023
8.6%
9.2M shares
JPMORGAN CHASE & CO. 13-2624428
SC 13G · Jan 11, 2023
5.6%
6.1M shares
SC 13G/A · Oct 11, 2022
10.1%
10.8M shares
Capital World Investors 95-1411037
SC 13G/A · Feb 11, 2022
5.1%
5.4M shares
SC 13G/A · Feb 1, 2022
9.1%
9.6M shares