Regeneron Pharmaceuticals, Inc. planned insider sales
In the twelve months since 23 September 2025 insiders at Regeneron Pharmaceuticals, Inc. filed 13 Form 144 notices of planned sales, 17,611 shares worth $13.0 million at the time of filing, from 8 sellers. The latest, filed 3 September 2026: McCourt Marion (officer), 1,131 shares worth $969,267, planned for around 3 September 2026 through UBS Financial Services Inc..
| Filed | Seller | Relationship | Shares | Value | Planned sale | Broker | How acquired | Filing |
|---|---|---|---|---|---|---|---|---|
| 3 September 2026 | McCourt Marion | Officer | 1,131 | $969,267 | 3 September 2026 | UBS Financial Services Inc. | RSA Vesting | Form 144 |
| 2 September 2026 | Guarini Kathryn | Director | 400 | $340,000 | 2 September 2026 | UBS Financial Services, Inc. | Exercise of stock option | Form 144 |
| 2 September 2026 | McCourt Marion | Officer | 1,215 | $1.0 million | 2 September 2026 | UBS Financial Services Inc. | RSA Vesting | Form 144 |
| 10 August 2026 | Guarini Kathryn | Board member | 400 | $320,000 | 10 August 2026 | UBS Financial Services, Inc. | Exercise of stock option | Form 144 |
| 10 August 2026 | Zoghbi Huda Y | Director | 800 | $640,000 | 10 August 2026 | UBS Financial Services, Inc. | Exercise of stock options | Form 144 |
| 2 July 2026 | Arthur F. Ryan | Director | 400 | $249,888 | 2 July 2026 | J.P. Morgan Securities LLC | Compensation | Form 144 |
| 19 February 2026 | Zoghbi Huda Y | Director | 1,638 | $1.3 million | 19 February 2026 | UBS Financial Services, Inc. | Exercise of stock options | Form 144 |
| 9 February 2026 | Arthur F. Ryan | Director | 400 | $314,204 | 9 February 2026 | J.P. Morgan Securities LLC | Compensation | Form 144 |
| 9 February 2026 | Pitofsky Jason | Officer | 2,036 | $1.6 million | 9 February 2026 | UBS Financial Services, Inc. | Exercise of Stock Options; Restricted Stock Award | Form 144 |
| 7 January 2026 | Bassler Bonnie L | Director | 1,500 | $1.2 million | 7 January 2026 | RBC CAPITAL MARKETS LLC | OPTION EXERCISE | Form 144 |
| 20 November 2025 | Bassler Bonnie L | Director | 760 | $570,000 | 20 November 2025 | RBC CAPITAL MARKETS LLC | OPTION EXERCISE | Form 144 |
| 7 November 2025 | Jason Pitofsky | Officer | 431 | $280,581 | 7 November 2025 | UBS Financial Services Inc | Restricted Stock Award | Form 144 |
| 29 October 2025 | Christine Poon | Director | 6,500 | $4.2 million | 29 October 2025 | Goldman Sachs & Co. LLC | Stock Options | Form 144 |
A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was. Value is the filer's own aggregate market value. Whether the sale happened shows up later on Form 4, on the insiders page.
Source
Form 144 filings on EDGAR for Regeneron Pharmaceuticals, Inc.: the company's filing index, each notice read from its own XML.
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