DESCHUYTNER BRIAN

PrivateCIK: 1782163
Location

CAMBRIDGE, MA

DESCHUYTNER BRIAN (Sr. VP, Finance & Product stgy) sold 6.5% of their position (8.47K shares) of MERSANA THERAPEUTICS, INC. on the open market

Open‑market sale worth $4.9K — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderDESCHUYTNER BRIANCIK 1782163
Officer· Sr. VP, Finance & Product stgy
Since Jul 2019
+335.28K
Net shares
Net buyer
$4.9K
Total sold
1
Open market trades
0B · 1S
7
Total transactions
364.58K acquired · 29.30K disposed
Non-Derivative Transactions3

Common Stock

Direct
M · Option Exercise

Shares

+6.25K

Price / share

Trade value

% of position

5.7%
1/15/2025
109.03K115.28K

Common Stock

Direct
M · Option Exercise

Shares

+14.58K

Price / share

Trade value

% of position

12.7%
1/15/2025
115.28K129.86K

Common Stock

Direct
S · Sale

Shares

8.47K

Price / share

$0.58

Trade value

$4.91K

% of position

6.5%
1/16/2025
129.86K121.39K
Total

Net shares

+12.36K

Net value

-$4.91K

Derivative Transactions4

Restricted Stock Unit

Direct
M · Option Exercise
Converts to

Common Stock

6.25K shares

Shares

6.25K

Strike price

Held after

0.00

Exercisable

1/15/2025

Restricted Stock Unit

Direct
M · Option Exercise
Converts to

Common Stock

14.58K shares

Shares

14.58K

Strike price

Held after

43.75K

Exercisable

1/15/2025

Stock Option (Right to Buy)

Direct
A · Award
Converts to

Common Stock

281.25K shares

Shares

+281.25K

Strike price

0.64

Held after

281.25K

Exercisable

1/15/2025

Restricted Stock Unit

Direct
A · Award
Converts to

Common Stock

62.50K shares

Shares

+62.50K

Strike price

Held after

62.50K

Exercisable

1/15/2025
DESCHUYTNER BRIAN — Insider Transaction (Form 4) Filed Jan 17, 2025 | Finecho