Regeneron Pharmaceuticals, Inc.

Estimated for Congress, as filed for insiders · by filing month · past 24 months

KG Kathryn Guarini Director 3 filings · 0 buys, 3 sales JJ Julie Johnson Representative (Joint) 3 filings · 1 buy, 2 sales JP Jason Pitofsky VP Controller 3 filings · 0 buys, 3 sales RB Rob Bresnahan Representative (Joint) 3 filings · 1 buy, 2 sales HZ Huda Y Zoghbi Director 3 filings · 0 buys, 3 sales BB Bonnie L Bassler Director 2 filings · 0 buys, 2 sales GC Gilbert Cisneros Representative 2 filings · 1 buy, 1 sale JG Josh Gottheimer Representative (Joint) 2 filings · 0 buys, 2 sales

All 21 filers

CP Christine A Poon Director 2 filings · 0 buys, 2 sales AA Alan Armstrong Senator (Joint) 1 filing · 1 buy, 0 sales MB Michael S Brown Director 1 filing · 0 buys, 1 sale BD Byron Donalds Representative (Spouse) 1 filing · 0 buys, 1 sale GL Greg Landsman Representative (Spouse) 1 filing · 0 buys, 1 sale JS Jefferson Shreve Representative 1 filing · 0 buys, 1 sale JJ Jonathan Jackson Representative (Spouse) 1 filing · 0 buys, 1 sale JL Julia Letlow Representative 1 filing · 1 buy, 0 sales JL Joseph J Larosa EVP General Counsel and Secret 1 filing · 0 buys, 1 sale AM Andrew J Murphy Co-Chief Scientific Officer 1 filing · 0 buys, 1 sale MM Marion McCourt EVP Commercial 1 filing · 0 buys, 1 sale AR Arthur F Ryan Director 1 filing · 0 buys, 1 sale GS George L Sing Director 1 filing · 0 buys, 1 sale

Jason PitofskySALE SVP Controller $3.8M
4,027 sh across 7 lots
Exec Nov 4
Filed Nov 6 · 4:01 PM ET Huda Y ZoghbiSALE Director $7.2M
7,439 sh across 2 lots
Exec Nov 3
Filed Nov 5 · 4:05 PM ET George L SingSALE Director $20.4M
21,129 sh across 9 lots
Exec Nov 2
Filed Nov 4 · 4:11 PM ET Christine A PoonSALE Director $7.6M
7,830 sh across 6 lots
Exec Nov 2
Filed Nov 4 · 4:09 PM ET Joseph J LarosaSALE EVP General Counsel and Secret $4.3M
4,466 sh across 2 lots
Exec Nov 2
Filed Nov 4 · 4:04 PM ET Kathryn GuariniSALE Director $360K
400 sh × $900.00
Exec Oct 30
Filed Nov 3 · 4:22 PM ET Michael S BrownSALE Director $1.7M
1,929 sh × $875.00
Exec Oct 30
Filed Nov 3 · 4:05 PM ET Marion McCourtSALE EVP Commercial $984K
1,132 sh × $869.43
Exec Oct 30
Filed Nov 3 · 4:02 PM ET Andrew J MurphySALE Co-Chief Scientific Officer $2.6M
3,352 sh across 11 lots
Exec Oct 14
Filed Oct 15 · 4:02 PM ET Kathryn GuariniSALE Director $340K
400 sh × $850.00
Exec Sep 2
Filed Sep 3 · 4:47 PM ET Kathryn GuariniSALE Director $320K
400 sh × $800.00
Exec Aug 10
Filed Aug 12 · 4:16 PM ET Huda Y ZoghbiSALE Director $640K
800 sh × $800.00
Exec Aug 10
Filed Aug 12 · 4:14 PM ET Alan ArmstrongPURCHASE Senator $8K
$1K–15K bracket
Exec Mar 27
Filed Jul 21 † Arthur F RyanSALE Director $130K
200 sh × $650.15
Exec Jul 2
Filed Jul 7 · 4:05 PM ET Gilbert CisnerosSALE Representative $8K
$1K–15K bracket
Exec May 15
Filed Jun 8 Julia LetlowPURCHASE Representative $8K
$1K–15K bracket
Exec Feb 12
Filed Mar 12 Huda Y ZoghbiSALE Director $1.1M
1,426 sh across 6 lots
Exec Feb 19
Filed Feb 23 · 5:30 PM ET Jason PitofskySALE SVP Controller $1.4M
1,824 sh across 5 lots
Exec Feb 9
Filed Feb 11 · 5:30 PM ET Bonnie L BasslerSALE Director $1.2M
1,500 sh × $800.00
Exec Jan 7
Filed Jan 8 · 5:30 PM ET Gilbert CisnerosPURCHASE Representative $8K
$1K–15K bracket
Exec Nov 18 2025
Filed Dec 15 2025 Bonnie L BasslerSALE Director $570K
760 sh × $750.00
Exec Nov 20 2025
Filed Nov 24 2025 · 5:30 PM ET Jason PitofskySALE VP Controller $281K
431 sh × $651.43
Exec Nov 7 2025
Filed Nov 10 2025 · 5:30 PM ET Christine A PoonSALE Director $4.2M
6,400 sh across 5 lots
Exec Oct 29 2025
Filed Oct 31 2025 · 5:30 PM ET Rob BresnahanPURCHASE Representative $8K
$1K–15K bracket
Exec May 15 2025
Filed Jun 9 2025 Byron DonaldsSALE Representative (Spouse) $16K
2 lots · $2K–30K bracket
Exec Apr 10 2025
Filed May 24 2025