Mersana Therapeutics Inc. (MRSN)
NASDAQ: MRSN
· Real-Time Price · USD
7.14
-0.28 (-3.77%)
At close: Aug 15, 2025, 3:59 PM
7.44
4.20%
After-hours: Aug 15, 2025, 06:16 PM EDT
MRSN Open Interest Chart
Open interest breakdown by expiration date for MRSN
options contracts. Displaying data for 4
active expiration dates with future expiry.
Total open interest across all expiries is
5,925
contracts, with 5,855
call contracts and
70 put contracts. The
overall put-call open interest ratio is
0.01, indicating a
bullish
bias in positioning. Options expire from
Sep 19, 2025
to
Feb 20, 2026.
Open Interest Table
| Expiry Date | Call OI | Put OI | P/C OI |
|---|---|---|---|
| Sep 19, 2025 | 105 | 0 | 0.00 |
| Nov 21, 2025 | 249 | 0 | 0.00 |
| Jan 16, 2026 | 4,836 | 58 | 0.01 |
| Feb 20, 2026 | 665 | 12 | 0.02 |