Sing George L
Director
Sale
Calculated transaction value
$2.58M
2,670 shares @ $964.57
Traded
Nov 2, 2026
Filed
Nov 4, 2026
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Regeneron Pharmaceuticals Inc
REGN
ManufacturingChemicals
Transactions reported in official disclosures
Price with disclosed trades
Daily closes, past year · marks sit on transaction dates, sized by value
140 trades
| Reporting person | Filed | Transaction | Transaction value | Source | Actions |
|---|---|---|---|---|---|
| Sing George L Director | Nov 4, 2026 2-day lag | Sale Nov 2, 2026 | $2.58M Filed shares x price | SEC Form 4 View filing | |
| Sing George L Director | Nov 4, 2026 2-day lag | Sale Nov 2, 2026 | $1.01M Filed shares x price | SEC Form 4 View filing | |
| Poon Christine A Director | Nov 4, 2026 2-day lag | Sale Nov 2, 2026 | $2.42M Filed shares x price | SEC Form 4 View filing | |
| Poon Christine A Director | Nov 4, 2026 2-day lag | Exercise Nov 2, 2026 | $2.95M Filed shares x price | SEC Form 4 View filing | |
| Poon Christine A Director | Nov 4, 2026 2-day lag | Sale Nov 2, 2026 | $195.23K Filed shares x price | SEC Form 4 View filing | |
| Poon Christine A Director | Nov 4, 2026 2-day lag | Sale Nov 2, 2026 | $909.37K Filed shares x price | SEC Form 4 View filing | |
| Poon Christine A Director | Nov 4, 2026 2-day lag | Sale Nov 2, 2026 | $210.75K Filed shares x price | SEC Form 4 View filing | |
| Poon Christine A Director | Nov 4, 2026 2-day lag | Sale Nov 2, 2026 | $3.11M Filed shares x price | SEC Form 4 View filing | |
| Poon Christine A Director | Nov 4, 2026 2-day lag | Sale Nov 2, 2026 | $746.82K Filed shares x price | SEC Form 4 View filing | |
| Poon Christine A Director | Nov 4, 2026 2-day lag | Exercise Nov 2, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Fenimore Christopher R. EVP Finance CFO | Nov 4, 2026 2-day lag | Disposition Nov 2, 2026 | $4.03M Filed shares x price | SEC Form 4 View filing | |
| Fenimore Christopher R. EVP Finance CFO | Nov 4, 2026 2-day lag | Gift Nov 2, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Fenimore Christopher R. EVP Finance CFO | Nov 4, 2026 2-day lag | Exercise Nov 2, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Fenimore Christopher R. EVP Finance CFO | Nov 4, 2026 2-day lag | Exercise Nov 2, 2026 | $2.29M Filed shares x price | SEC Form 4 View filing | |
| Larosa Joseph J EVP General Counsel And Secret | Nov 4, 2026 2-day lag | Sale Nov 2, 2026 | $509.14K Filed shares x price | SEC Form 4 View filing | |
| Larosa Joseph J EVP General Counsel And Secret | Nov 4, 2026 2-day lag | Disposition Nov 2, 2026 | $8.26M Filed shares x price | SEC Form 4 View filing | |
| Larosa Joseph J EVP General Counsel And Secret | Nov 4, 2026 2-day lag | Exercise Nov 2, 2026 | $4.69M Filed shares x price | SEC Form 4 View filing | |
| Larosa Joseph J EVP General Counsel And Secret | Nov 4, 2026 2-day lag | Sale Nov 2, 2026 | $3.8M Filed shares x price | SEC Form 4 View filing | |
| Larosa Joseph J EVP General Counsel And Secret | Nov 4, 2026 2-day lag | Exercise Nov 2, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Guarini Kathryn Director | Nov 3, 2026 4-day lag | Sale Oct 30, 2026 | $360K Filed shares x price | SEC Form 4 View filing | |
| Guarini Kathryn Director | Nov 3, 2026 4-day lag | Exercise Oct 30, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Guarini Kathryn Director | Nov 3, 2026 4-day lag | Exercise Oct 30, 2026 | $287.75K Filed shares x price | SEC Form 4 View filing | |
| Brown Michael S Director | Nov 3, 2026 4-day lag | Exercise Oct 30, 2026 | $1.4M Filed shares x price | SEC Form 4 View filing | |
| Brown Michael S Director | Nov 3, 2026 4-day lag | Sale Oct 30, 2026 | $1.69M Filed shares x price | SEC Form 4 View filing | |
| Brown Michael S Director | Nov 3, 2026 4-day lag | Exercise Oct 30, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Mccourt Marion EVP Commercial | Nov 3, 2026 4-day lag | Sale Oct 30, 2026 | $984.19K Filed shares x price | SEC Form 4 View filing | |
| Murphy Andrew J Co-chief Scientific Officer | Oct 15, 2026 1-day lag | Sale Oct 14, 2026 | $80.67K Filed shares x price | SEC Form 4 View filing | |
| Murphy Andrew J Co-chief Scientific Officer | Oct 15, 2026 1-day lag | Sale Oct 14, 2026 | $296.24K Filed shares x price | SEC Form 4 View filing | |
| Murphy Andrew J Co-chief Scientific Officer | Oct 15, 2026 1-day lag | Sale Oct 14, 2026 | $41.94K Filed shares x price | SEC Form 4 View filing | |
| Murphy Andrew J Co-chief Scientific Officer | Oct 15, 2026 1-day lag | Sale Oct 14, 2026 | $20.56K Filed shares x price | SEC Form 4 View filing |
Sing George L
Director
Sale
Calculated transaction value
$1.01M
1,040 shares @ $967.07
Traded
Nov 2, 2026
Filed
Nov 4, 2026
Poon Christine A
Director
Sale
Calculated transaction value
$2.42M
2,499 shares @ $968.58
Traded
Nov 2, 2026
Filed
Nov 4, 2026
Poon Christine A
Director
Exercise
Calculated transaction value
$2.95M
7,830 shares @ $376.69
Traded
Nov 2, 2026
Filed
Nov 4, 2026
Poon Christine A
Director
Sale
Calculated transaction value
$195.23K
201 shares @ $971.31
Traded
Nov 2, 2026
Filed
Nov 4, 2026
Poon Christine A
Director
Sale
Calculated transaction value
$909.37K
937 shares @ $970.51
Traded
Nov 2, 2026
Filed
Nov 4, 2026
Poon Christine A
Director
Sale
Calculated transaction value
$210.75K
218 shares @ $966.74
Traded
Nov 2, 2026
Filed
Nov 4, 2026
Poon Christine A
Director
Sale
Calculated transaction value
$3.11M
3,203 shares @ $969.5
Traded
Nov 2, 2026
Filed
Nov 4, 2026
Poon Christine A
Director
Sale
Calculated transaction value
$746.82K
772 shares @ $967.38
Traded
Nov 2, 2026
Filed
Nov 4, 2026
Poon Christine A
Director
Exercise
Calculated transaction value
$0
7,830 shares @ $0
Traded
Nov 2, 2026
Filed
Nov 4, 2026
Fenimore Christopher R.
EVP Finance CFO
Disposition
Calculated transaction value
$4.03M
4,243 shares @ $950.5
Traded
Nov 2, 2026
Filed
Nov 4, 2026
Fenimore Christopher R.
EVP Finance CFO
Gift
Calculated transaction value
$0
15 shares @ $0
Traded
Nov 2, 2026
Filed
Nov 4, 2026
Fenimore Christopher R.
EVP Finance CFO
Exercise
Calculated transaction value
$0
6,000 shares @ $0
Traded
Nov 2, 2026
Filed
Nov 4, 2026
Fenimore Christopher R.
EVP Finance CFO
Exercise
Calculated transaction value
$2.29M
6,000 shares @ $381.92
Traded
Nov 2, 2026
Filed
Nov 4, 2026
Larosa Joseph J
EVP General Counsel And Secret
Sale
Calculated transaction value
$509.14K
527 shares @ $966.11
Traded
Nov 2, 2026
Filed
Nov 4, 2026
Larosa Joseph J
EVP General Counsel And Secret
Disposition
Calculated transaction value
$8.26M
8,686 shares @ $950.5
Traded
Nov 2, 2026
Filed
Nov 4, 2026
Larosa Joseph J
EVP General Counsel And Secret
Exercise
Calculated transaction value
$4.69M
12,283 shares @ $381.92
Traded
Nov 2, 2026
Filed
Nov 4, 2026
Larosa Joseph J
EVP General Counsel And Secret
Sale
Calculated transaction value
$3.8M
3,939 shares @ $965.41
Traded
Nov 2, 2026
Filed
Nov 4, 2026
Larosa Joseph J
EVP General Counsel And Secret
Exercise
Calculated transaction value
$0
12,283 shares @ $0
Traded
Nov 2, 2026
Filed
Nov 4, 2026
Guarini Kathryn
Director
Sale
Calculated transaction value
$360K
400 shares @ $900
Traded
Oct 30, 2026
Filed
Nov 3, 2026
Guarini Kathryn
Director
Exercise
Calculated transaction value
$0
400 shares @ $0
Traded
Oct 30, 2026
Filed
Nov 3, 2026
Guarini Kathryn
Director
Exercise
Calculated transaction value
$287.75K
400 shares @ $719.37
Traded
Oct 30, 2026
Filed
Nov 3, 2026
Brown Michael S
Director
Exercise
Calculated transaction value
$1.4M
1,929 shares @ $725.89
Traded
Oct 30, 2026
Filed
Nov 3, 2026
Brown Michael S
Director
Sale
Calculated transaction value
$1.69M
1,929 shares @ $875
Traded
Oct 30, 2026
Filed
Nov 3, 2026
Brown Michael S
Director
Exercise
Calculated transaction value
$0
1,929 shares @ $0
Traded
Oct 30, 2026
Filed
Nov 3, 2026
Mccourt Marion
EVP Commercial
Sale
Calculated transaction value
$984.19K
1,132 shares @ $869.43
Traded
Oct 30, 2026
Filed
Nov 3, 2026
Murphy Andrew J
Co-chief Scientific Officer
Sale
Calculated transaction value
$80.67K
105 shares @ $768.33
Traded
Oct 14, 2026
Filed
Oct 15, 2026
Murphy Andrew J
Co-chief Scientific Officer
Sale
Calculated transaction value
$296.24K
380 shares @ $779.59
Traded
Oct 14, 2026
Filed
Oct 15, 2026
Murphy Andrew J
Co-chief Scientific Officer
Sale
Calculated transaction value
$41.94K
55 shares @ $762.57
Traded
Oct 14, 2026
Filed
Oct 15, 2026
Murphy Andrew J
Co-chief Scientific Officer
Sale
Calculated transaction value
$20.56K
27 shares @ $761.36
Traded
Oct 14, 2026
Filed
Oct 15, 2026