ZHOU RONG

PrivateCIK: 1645326
Location

RANCHO CUCAMONGA, CA

ZHOU RONG (SENIOR EVP, PRODUCTION CENTER) reported 1 transaction at AMPHASTAR PHARMACEUTICALS, INC.

Review the transaction codes below to understand the nature of each event.

InsiderZHOU RONGCIK 1645326
Officer· SENIOR EVP, PRODUCTION CENTER
Since Mar 2026
-1.36K
Net shares
Net seller
$26.2K
Total sold
0
Open market trades
0B · 0S
1
Total transactions
1.36K disposed
Non-Derivative Transactions1

Common Stock

Direct
F · Tax Withholding

Shares

1.36K

Price / share

$19.34

Trade value

$26.24K

% of position

1.0%
3/6/2026
136.92K135.56K
Total

Net shares

1.36K

Net value

-$26.24K

Derivative Transactions0
No derivative transactions reported
Non-Derivative Holdings (Post-Transaction)2

Common Stock

Indirect
Shares owned5K

Common Stock

Indirect
Shares owned99.67K
Total
104.67K indirect104.67K
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
ZHOU RONG — Insider Transaction (Form 4) Filed Mar 10, 2026 | Finecho