CHAMPOUX JENNIFER

PrivateCIK: 2025233
Location

BOSTON, MA

CHAMPOUX JENNIFER (Chief Operating Officer) sold 3.4% of their position (2.17K shares) of MONTE ROSA THERAPEUTICS, INC. on the open market

Open‑market sale worth $43.5K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderCHAMPOUX JENNIFERCIK 2025233
Officer· Chief Operating Officer
Since May 2024
-2.17K
Net shares
Net seller
$43.5K
Total sold
1
Open market trades
0B · 1S
3
Total transactions
2.17K acquired · 4.35K disposed
Non-Derivative Transactions2

Common Stock

Direct
M · Option Exercise

Shares

+2.17K

Price / share

$3.98

Trade value

$8.66K

% of position

3.5%
5/27/2026
62.37K64.55K

Common Stock

Direct
S · Sale

Shares

2.17K

Price / share

$20.00

Trade value

$43.50K

% of position

3.4%
5/27/2026
64.55K62.37K
Total

Net shares

+0.00

Net value

-$34.84K

Derivative Transactions1

Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

2.17K shares

Shares

2.17K

Strike price

3.98

Held after

35.65K

Exercisable

5/27/2026
CHAMPOUX JENNIFER — Insider Transaction (Form 4) Filed May 28, 2026 | Finecho