sellWeak10b5-1 plan
Mohan Bala sold $762 of MRSN
SVP, Chief Development Officer at Mersana Therapeutics, Inc.. 77 shares at an average of $9.90, traded Oct 27, 2025, filed Oct 28, 2025.
Warning score
0Value
$762
77 shares
Holdings after
2,922
-3% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet
Score components
- +15RoleOfficer
- 0Trade size$762 at market
- 0Share of holdings soldSold 2.6% of holdings
- 0ClusterNo other insider selling within 14 days
- -15Exercise and sellShares came from an option exercise in the same filing
- -2010b5-1 planPre-scheduled under a 10b5-1 plan
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Rows in this filing
Every transaction in Form 4 0001104659-25-103170, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Oct 25, 2025 | MOption exercise Common Stock10b5-1 | +250 | $0.00 | $0 | 2,999 | Oct 28, 2025 |
| Oct 27, 2025 | SOpen-market sale Common Stock10b5-1 | -77 | $9.90 | $762 | 2,922 | Oct 28, 2025 |
| Oct 25, 2025 | MOption exercise Restricted Stock Unitderivative10b5-1 | -250 | $0.00 | $0 | 0 | Oct 28, 2025 |
Related signals
Other insiders at Mersana Therapeutics, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 0Weak | Mersana Therapeutics, Inc. | Martin H. Huber Jr. President, CEO | $15k 2,012 shares | -17% | |
| 0Weak | Mersana Therapeutics, Inc. | Mohan Bala SVP, Chief Development Officer | $3,445 5,939 shares | -8% | |
| 0Weak | Mersana Therapeutics, Inc. | Alejandra Carvajal SVP, Chief Legal Officer | $2,956 5,096 shares | -6% | |
| 2Weak | Mersana Therapeutics, Inc. | Brian DeSchuytner SVP, COO & CFO | $4,913 8,470 shares | -7% | |
| 5Weak | Mersana Therapeutics, Inc. | Martin H. Huber Jr. President, CEO | $2,618 4,514 shares | -4% | |
| 0Weak | Mersana Therapeutics, Inc. | Alejandra Carvajal SVP, Chief Legal Officer | $600 952 shares | -1% | |
| 2Weak | Mersana Therapeutics, Inc. | Brian DeSchuytner SVP, COO & CFO | $1,469 2,331 shares | -2% | |
| 0Weak | Mersana Therapeutics, Inc. | Mohan Bala SVP, Chief Development Officer | $2,147 3,253 shares | -5% | |
| 0Weak | Mersana Therapeutics, Inc. | Alejandra Carvajal SVP, Chief Legal Officer | $2,198 3,330 shares | -5% | |
| 2Weak | Mersana Therapeutics, Inc. | Brian DeSchuytner SVP, COO & CFO | $2,451 3,713 shares | -3% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.