PRINS RICHARD K

PrivateCIK: 1047579
Location

RANCHO CUCAMONGA, CA

PRINS RICHARD K received a stock award from AMPHASTAR PHARMACEUTICALS, INC.

Compensation award — not an open‑market transaction. Less informative as a directional signal.

A · 1 award
InsiderPRINS RICHARD KCIK 1047579
Director
Since Aug 2018
+24.01K
Net shares
Net buyer
$0.00
Total acquired
0
Open market trades
0B · 0S
3
Total transactions
25.51K acquired · 1.50K disposed
Non-Derivative Transactions2

Common Stock

Direct
G · Gift

Shares

1.50K

Price / share

Trade value

% of position

4.8%
8/19/2024
30.95K29.45K

Common Stock

Direct
A · Award

Shares

+8.14K

Price / share

Trade value

% of position

27.6%
6/1/2026
29.45K37.60K
Total

Net shares

+6.64K

Net value

$0.00

Derivative Transactions1

Stock Option (right to buy)

Direct
A · Award
Converts to

Common Stock

17.36K shares

Shares

+17.36K

Strike price

18.42

Held after

17.36K

Exercisable

6/1/2026
PRINS RICHARD K — Insider Transaction (Form 4) Filed Jun 4, 2026 | Finecho