IEQ Capital’s Mersana Therapeutics MRSN Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
Sell
-12,955
Closed -$375K 2008
2025
Q4
$375K Sell
12,955
-2,285
-15% -$43.4K ﹤0.01% 1449
2025
Q3
$118K Sell
15,240
-10,298
-40% -$77.3K ﹤0.01% 1749
2025
Q2
$189K Sell
25,538
-2,743
-10% -$24.1K ﹤0.01% 1624
2025
Q1
$243K Buy
+28,281
New +$436K ﹤0.01% 1278

Other funds holding MRSN

IEQ Capital's MRSN Position: Q1 2026 in Review

IEQ Capital sold out of Mersana Therapeutics (MRSN) in Q1 2026, closing a stake of 12,955 shares — an estimated $375K sold.

IEQ Capital first reported a position in MRSN in Q1 2025 and held it in 4 quarters. The position peaked at $375K in Q4 2025. 1 fund tracked by Wall St. Rank holds MRSN as of Q1 2026.

  • IEQ Capital reported no remaining Mersana Therapeutics position as of Q1 2026 after selling out during the quarter.
  • IEQ Capital sold 12,955 Mersana Therapeutics shares in Q1 2026, an estimated $375K.
  • IEQ Capital first reported a position in Mersana Therapeutics in Q1 2025 and held it in 4 quarters.
  • IEQ Capital's Mersana Therapeutics position peaked at $375K in Q4 2025.
  • 1 fund tracked by Wall St. Rank held Mersana Therapeutics as of Q1 2026.

Based on IEQ Capital's 13F filing for Q1 2026, filed 15 May 2026.