# Regeneron Pharmaceuticals, Inc. (REGN) insider trading, Q3 2026

Canonical: https://sec-api.dev/insider-trading/regn

> 13 non-derivative transactions: 0 purchases, 6 sales ($3.4M). CIK 872589.

| Date | Insider | Relationship | Code | Shares | Price | Owned after | Filing |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 2026-09-03 | McCourt Marion | Officer | S | 1131.0 | 857.39 | 12003.0 | https://www.sec.gov/Archives/edgar/data/872589/000166375826000002/0001663758-26-000002-index.htm |
| 2026-09-02 | McCourt Marion | Officer | S | 1215.0 | 850.0 | 13134.0 | https://www.sec.gov/Archives/edgar/data/872589/000166375826000002/0001663758-26-000002-index.htm |
| 2026-09-02 | Guarini Kathryn | Director | M | 400.0 | 719.37 | 1003.0 | https://www.sec.gov/Archives/edgar/data/872589/000199235226000007/0001992352-26-000007-index.htm |
| 2026-09-02 | Guarini Kathryn | Director | S | 400.0 | 850.0 | 603.0 | https://www.sec.gov/Archives/edgar/data/872589/000199235226000007/0001992352-26-000007-index.htm |
| 2026-08-19 | LAROSA JOSEPH J | Officer | F | 9019.0 | 830.15 | 36373.0 | https://www.sec.gov/Archives/edgar/data/872589/000123830326000002/0001238303-26-000002-index.htm |
| 2026-08-19 | LAROSA JOSEPH J | Officer | M | 12282.0 | 381.92 | 45392.0 | https://www.sec.gov/Archives/edgar/data/872589/000123830326000002/0001238303-26-000002-index.htm |
| 2026-08-18 | Fenimore Christopher R. | Officer | M | 6283.0 | 381.92 | 24583.0 | https://www.sec.gov/Archives/edgar/data/872589/000169742226000002/0001697422-26-000002-index.htm |
| 2026-08-18 | Fenimore Christopher R. | Officer | F | 4599.0 | 813.47 | 19984.0 | https://www.sec.gov/Archives/edgar/data/872589/000169742226000002/0001697422-26-000002-index.htm |
| 2026-08-10 | Zoghbi Huda Y | Director | M | 800.0 | 376.69 | 2503.0 | https://www.sec.gov/Archives/edgar/data/872589/000168164326000006/0001681643-26-000006-index.htm |
| 2026-08-10 | Zoghbi Huda Y | Director | S | 800.0 | 800.0 | 1703.0 | https://www.sec.gov/Archives/edgar/data/872589/000168164326000006/0001681643-26-000006-index.htm |
| 2026-08-10 | Guarini Kathryn | Director | S | 400.0 | 800.0 | 603.0 | https://www.sec.gov/Archives/edgar/data/872589/000199235226000005/0001992352-26-000005-index.htm |
| 2026-08-10 | Guarini Kathryn | Director | M | 400.0 | 719.37 | 1003.0 | https://www.sec.gov/Archives/edgar/data/872589/000199235226000005/0001992352-26-000005-index.htm |
| 2026-07-02 | RYAN ARTHUR F | Director | S | 200.0 | 650.15 | 17303.0 | https://www.sec.gov/Archives/edgar/data/872589/000118744326000010/0001187443-26-000010-index.htm |

Source: https://www.sec.gov/data-research/sec-markets-data/insider-transactions-data-sets

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