MAYO STEPHEN

PrivateCIK: 1849061
Location

KENILWORTH, NJ

InsiderMAYO STEPHENCIK 1849061
IssuerMERCK & CO., INC.CIK 310158
Director
Since Mar 2021
+1.85K
Net shares
Net buyer
$0.00
Total acquired
0
Open market trades
0B · 0S
1
Total transactions
1.85K acquired
Non-Derivative Transactions0
No non-derivative transactions reported
Derivative Transactions1

Phantom Stock

Direct
A · Award
Converts to

Common Stock

1.85K shares

Shares

+1.85K

Strike price

Held after

14.82K

Exercisable

5/29/2026
Non-Derivative Holdings (Post-Transaction)1

Common Stock

Direct
Shares owned100.00
Total
100.00 direct100.00
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
MAYO STEPHEN — Insider Transaction (Form 4) Filed Jun 2, 2026 | Finecho