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 |
|---|---|---|---|---|---|---|
| Bassler Bonnie L | Director | EXERCISE | $100K–$500K | 853 | $391.92 | Aug 11, 2023 |
| RYAN ARTHUR F | Director | SELL | $50K–$100K | 100 | $736.59 | Aug 3, 2023 |
| McCourt Marion | EVP Commercial | SELL | $100K–$500K | 250 | $744.66 | Aug 3, 2023 |
| McCourt Marion | EVP Commercial | SELL | $100K–$500K | 250 | $710.09 | Jul 6, 2023 |
| RYAN ARTHUR F | Director | SELL | $50K–$100K | 100 | $716.88 | Jul 6, 2023 |
| RYAN ARTHUR F | Director | SELL | $50K–$100K | 100 | $735.42 | Jun 2, 2023 |
| McCourt Marion | EVP Commercial | SELL | $100K–$500K | 250 | $736.00 | Jun 2, 2023 |
| RYAN ARTHUR F | Director | SELL | $50K–$100K | 100 | $805.33 | May 3, 2023 |
| BROWN MICHAEL S | Director | EXERCISE | $1M+ | 3K | $520.01 | Apr 24, 2023 |
| BROWN MICHAEL S | Director | SELL | $1M+ | 3K | $798.42 | Apr 24, 2023 |
| RYAN ARTHUR F | Director | SELL | $50K–$100K | 100 | $819.31 | Apr 5, 2023 |
| McCourt Marion | EVP Commercial | EXERCISE | $100K–$500K | 1K | $372.46 | Apr 5, 2023 |
| McCourt Marion | EVP Commercial | SELL | $500K+ | 1K | $818.80 | Apr 5, 2023 |
| Landry Robert E | EVP Finance CFO | EXERCISE | $1M+ | 4K | $379.60 | Mar 29, 2023 |
| Landry Robert E | EVP Finance CFO | SELL | $500K+ | 1K | $823.20 | Mar 29, 2023 |
| Bassler Bonnie L | Director | SELL | $1M+ | 1K | $818.00 | Mar 27, 2023 |
| Bassler Bonnie L | Director | EXERCISE | $100K–$500K | 1K | $380.95 | Mar 27, 2023 |
| YANCOPOULOS GEORGE | President and Chie… | SELL | $1M+ | 4K | $804.26 | Mar 27, 2023 |
| Fenimore Christopher R. | SVP Controller | SELL | $1M+ | 2K | $806.47 | Mar 27, 2023 |
| RYAN ARTHUR F | Director | SELL | $50K–$100K | 100 | $762.50 | Mar 3, 2023 |
| McCourt Marion | EVP Commercial | EXERCISE | $100K–$500K | 1K | $372.46 | Mar 3, 2023 |
| McCourt Marion | EVP Commercial | SELL | $500K+ | 1K | $759.89 | Mar 3, 2023 |
| GOLDSTEIN JOSEPH L | Director | EXERCISE | $1M+ | 4K | $482.68 | Feb 8, 2023 |
| GOLDSTEIN JOSEPH L | Director | SELL | $1M+ | 4K | $800.00 | Feb 8, 2023 |
| BROWN MICHAEL S | Director | SELL | $1M+ | 4K | $797.86 | Feb 8, 2023 |
| BROWN MICHAEL S | Director | EXERCISE | $1M+ | 3K | $520.01 | Feb 8, 2023 |
| YANCOPOULOS GEORGE | President and Chie… | SELL | $1M+ | 13K | $800.08 | Feb 8, 2023 |
| McCourt Marion | EVP Commercial | EXERCISE | $100K–$500K | 1K | $372.46 | Feb 8, 2023 |
| McCourt Marion | EVP Commercial | SELL | $500K+ | 1K | $769.04 | Feb 8, 2023 |
| Bassler Bonnie L | Director | EXERCISE | $100K–$500K | 1K | $380.95 | Feb 7, 2023 |
| Bassler Bonnie L | Director | SELL | $500K+ | 1K | $779.00 | Feb 7, 2023 |
| Landry Robert E | EVP Finance CFO | SELL | $1M+ | 1K | $776.80 | Feb 7, 2023 |
| Landry Robert E | EVP Finance CFO | EXERCISE | $1M+ | 3K | $381.92 | Feb 7, 2023 |
| RYAN ARTHUR F | Director | SELL | $50K–$100K | 100 | $756.13 | Feb 3, 2023 |
| McCourt Marion | EVP Commercial | SELL | $500K+ | 1K | $752.19 | Feb 3, 2023 |
| McCourt Marion | EVP Commercial | EXERCISE | $100K–$500K | 1K | $372.46 | Feb 3, 2023 |
| BROWN MICHAEL S | Director | SELL | <$1K | 1 | $747.00 | Jan 30, 2023 |
| BROWN MICHAEL S | Director | EXERCISE | <$1K | 1 | $520.01 | Jan 30, 2023 |
| BROWN MICHAEL S | Director | SELL | $1M+ | 3K | $747.14 | Jan 10, 2023 |
| BROWN MICHAEL S | Director | EXERCISE | $1M+ | 3K | $520.01 | Jan 10, 2023 |
| RYAN ARTHUR F | Director | GRANT | N/A | 165 | — | Jan 5, 2023 |
| RYAN ARTHUR F | Director | SELL | $50K–$100K | 100 | $726.29 | Jan 5, 2023 |
| McCourt Marion | EVP Commercial | SELL | $500K+ | 1K | $721.86 | Jan 5, 2023 |
| McCourt Marion | EVP Commercial | EXERCISE | $100K–$500K | 1K | $372.46 | Jan 5, 2023 |
| COLES N ANTHONY | Director | SELL | $1M+ | 6K | $714.11 | Dec 30, 2022 |
| COLES N ANTHONY | Director | EXERCISE | $1M+ | 6K | $442.24 | Dec 30, 2022 |
| McCourt Marion | EVP Commercial | SELL | $100K–$500K | 264 | $730.17 | Dec 13, 2022 |
| Bassler Bonnie L | Director | SELL | $100K–$500K | 218 | $779.00 | Dec 12, 2022 |
| Bassler Bonnie L | Director | EXERCISE | $50K–$100K | 218 | $380.95 | Dec 12, 2022 |
| RYAN ARTHUR F | Director | SELL | $50K–$100K | 100 | $758.17 | Dec 2, 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