HUBER MARTIN H. JR.

PrivateCIK: 1653276
Location

CAMBRIDGE, MA

HUBER MARTIN H. JR. reported 1 transaction at MERSANA THERAPEUTICS, INC.

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

InsiderHUBER MARTIN H. JR.CIK 1653276
Director
Since Apr 2020
-118.75K
Net shares
Net seller
$0.00
Total acquired
0
Open market trades
0B · 0S
19
Total transactions
118.75K disposed
Non-Derivative Transactions1

Common Stock

Direct
U · U

Shares

9.57K

Price / share

Trade value

% of position

New position
1/6/2026
9.57K0.00
Total

Net shares

9.57K

Net value

$0.00

Derivative Transactions18

Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

5.94K shares

Shares

5.94K

Strike price

16.0125

Held after

0.00

Exercisable

1/6/2026

Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

26.71K shares

Shares

26.71K

Strike price

16.0125

Held after

0.00

Exercisable

1/6/2026

Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

1.92K shares

Shares

1.92K

Strike price

214.25

Held after

0.00

Exercisable

1/6/2026

Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

99.00 shares

Shares

99.00

Strike price

527.25

Held after

0.00

Exercisable

1/6/2026

Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

1K shares

Shares

1K

Strike price

372.50

Held after

0.00

Exercisable

1/6/2026

Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

407.00 shares

Shares

407.00

Strike price

161.00

Held after

0.00

Exercisable

1/6/2026

Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

1.80K shares

Shares

1.80K

Strike price

90.50

Held after

0.00

Exercisable

1/6/2026

Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

135.00 shares

Shares

135.00

Strike price

106.25

Held after

0.00

Exercisable

1/6/2026

Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

734.00 shares

Shares

734.00

Strike price

216.00

Held after

0.00

Exercisable

1/6/2026

Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

179.00 shares

Shares

179.00

Strike price

85.50

Held after

0.00

Exercisable

1/6/2026

Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

12.12K shares

Shares

12.12K

Strike price

33.00

Held after

0.00

Exercisable

1/6/2026

Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

27.88K shares

Shares

27.88K

Strike price

33.00

Held after

0.00

Exercisable

1/6/2026

Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

364.00 shares

Shares

364.00

Strike price

31.50

Held after

0.00

Exercisable

1/6/2026

Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

497.00 shares

Shares

497.00

Strike price

75.50

Held after

0.00

Exercisable

1/6/2026

Stock Option (right to buy)

Direct
D · Disposition
Converts to

Common Stock

7.47K shares

Shares

7.47K

Strike price

75.50

Held after

0.00

Exercisable

1/6/2026

Restricted Stock Units

Direct
D · Disposition
Converts to

Common Stock

13.34K shares

Shares

13.34K

Strike price

0

Held after

0.00

Exercisable

1/6/2026

Restricted Stock Units

Direct
D · Disposition
Converts to

Common Stock

1.33K shares

Shares

1.33K

Strike price

0

Held after

0.00

Exercisable

1/6/2026

Restricted Stock Units

Direct
D · Disposition
Converts to

Common Stock

7.26K shares

Shares

7.26K

Strike price

0

Held after

0.00

Exercisable

1/6/2026
HUBER MARTIN H. JR. — Insider Transaction (Form 4) Filed Jan 6, 2026 | Finecho