GUARINI KATHRYN sold 39.9% of their position (400.00 shares) of REGENERON PHARMACEUTICALS, INC. on the open market
Open‑market sale worth $320.0K — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.
S · 1 sale
Filed: 8/12/2026ACC: 0001992352-26-000005
Director
Since Sep 2023
-400.00
Net shares
Net seller
$320.0K
Total sold
1
Open market trades
0B · 1S
3
Total transactions
400.00 acquired · 800.00 disposed
Non-Derivative Transactions2
Common Stock
Direct
Shares
+400.00
Price / share
$719.37
Trade value
$287.75K
% of position
66.3%
8/10/2026
603.00→1K
Common Stock
Direct
Shares
−400.00
Price / share
$800.00
Trade value
$320K
% of position
39.9%
8/10/2026
1K→603.00
Total
Net shares
+0.00
Net value
-$32.25K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 8/10/2026 | M · Option Exercise | +400.00 | $719.37 | $287.75K | 66.3% | 603.00 | 1K |
| Common Stock Direct | 8/10/2026 | S · Sale | −400.00 | $800.00 | $320K | 39.9% | 1K | 603.00 |
| Total | +0.00 | -$32.25K | ||||||
Derivative Transactions1
Non-Qualified Stock Option (right to buy)
Direct
Converts to
Common Stock
400.00 shares
Shares
−400.00
Strike price
719.37
Held after
1.56K
Exercisable
—
8/10/2026
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Non-Qualified Stock Option (right to buy) Direct | Common Stock400.00 shares | 8/10/2026 | M · Option Exercise | −400.00 | 719.37 | — | 1.56K |