HUBER MARTIN H. JR. sold 17.4% of their position (2.01K shares) of MERSANA THERAPEUTICS, INC. on the open market
Open‑market sale worth $14.7K — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.
S · 1 sale
Filed: 9/15/2025ACC: 0001104659-25-090026
Director
Since Apr 2020
-2.01K
Net shares
Net seller
$14.7K
Total sold
1
Open market trades
0B · 1S
3
Total transactions
6.67K acquired · 8.68K disposed
Non-Derivative Transactions2
Common Stock
Direct
Shares
+6.67K
Price / share
—
Trade value
—
% of position
135.7%
9/11/2025
4.91K→11.58K
Common Stock
Direct
Shares
−2.01K
Price / share
$7.31
Trade value
$14.71K
% of position
17.4%
9/12/2025
11.58K→9.57K
Total
Net shares
+4.66K
Net value
-$14.71K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 9/11/2025 | M · Option Exercise | +6.67K | — | — | 135.7% | 4.91K | 11.58K |
| Common Stock Direct | 9/12/2025 | S · Sale | −2.01K | $7.31 | $14.71K | 17.4% | 11.58K | 9.57K |
| Total | +4.66K | -$14.71K | ||||||
Derivative Transactions1
Restricted Stock Unit
Direct
Converts to
Common Stock
20.01K shares
Shares
−6.67K
Strike price
Held after
13.34K
Exercisable
—
9/11/2025
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Restricted Stock Unit Direct | Common Stock20.01K shares | 9/11/2025 | M · Option Exercise | −6.67K | — | 13.34K |