GIRSHICK BIRGIT

PrivateCIK: 1732091
Location

WILMINGTON, MA

GIRSHICK BIRGIT (Corporate Executive VP & COO) sold 15.3% of their position (6.50K shares) of CHARLES RIVER LABORATORIES INTERNATIONAL, INC. on the open market

Open‑market sale worth $1.82M — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
Officer· Corporate Executive VP & COO
Since Mar 2026
-6.50K
Net shares
Net seller
$1.82M
Total sold
1
Open market trades
0B · 1S
3
Total transactions
6.50K acquired · 13K disposed
Non-Derivative Transactions2

Common Stock

Direct
M · Option Exercise

Shares

+6.50K

Price / share

$179.66

Trade value

$1.17M

% of position

18.0%
8/11/2026
36.01K42.51K

Common Stock

Direct
S · Sale

Shares

6.50K

Price / share

$279.90

Trade value

$1.82M

% of position

15.3%
8/11/2026
42.51K36.01K
Total

Net shares

+0.00

Net value

-$651.56K

Derivative Transactions1

Stock Options (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

6.50K shares

Shares

6.50K

Strike price

179.66

Held after

0.00

Exercisable

8/11/2026
Non-Derivative Holdings (Post-Transaction)1

Common Stock

Indirect
Shares owned43.80K
Total
43.80K indirect43.80K
Derivative Holdings (Post-Transaction)0
No derivative holdings reported