Fmr LLC Mersana Therapeutics, Inc. Transaction History

Fmr LLC

$1.68 Trillion
Q2 2025

A detailed history of Fmr LLC transactions in Mersana Therapeutics, Inc. stock. As of the latest transaction made, Fmr LLC holds 138,520 shares of MRSN stock, worth $1.35 Million. This represents 0.0% of its overall portfolio holdings.

Number of Shares

138,520

Previous 171,080 19.03%

Holding current value

$1.35 Million

Previous $58,000 29.31%

% of portfolio

0.0%

Previous 0.0%

17 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q2 2025 Aug 14, 2025	SELL	$0.26 - $0.41 $8,465 - $13,349	-32,560 Reduced 19.03%	138,520 $41,000
Q1 2025 May 12, 2025	SELL	$0.34 - $1.4 $43,602 - $179,541	-128,244 Reduced 42.84%	171,080 $58,000
Q4 2024 Feb 13, 2025	BUY	$1.42 - $2.68 $30,649 - $57,845	21,584 Added 7.77%	299,324 $428,000
Q3 2024 Nov 13, 2024	BUY	$1.23 - $2.25 $39,768 - $72,747	32,332 Added 13.17%	277,740 $524,000
Q2 2024 Aug 13, 2024	SELL	$2.0 - $4.45 $160,378 - $356,841	-80,189 Reduced 24.63%	245,408 $493,000
Q1 2024 May 13, 2024	SELL	$2.16 - $5.94 $453,666 - $1.25 Million	-210,031 Reduced 39.21%	325,597 $1.46 Million
Q4 2023 Feb 13, 2024	SELL	$1.11 - $2.34 $49,018 - $103,336	-44,161 Reduced 7.62%	535,628 $1.24 Million
Q3 2023 Nov 13, 2023	SELL	$1.06 - $3.91 $953,690 - $3.52 Million	-899,708 Reduced 60.81%	579,789 $736,000
Q2 2023 Aug 11, 2023	BUY	$3.08 - $9.55 $4.18 Million - $12.9 Million	1,355,682 Added 1094.93%	1,479,497 $4.87 Million
Q1 2023 May 11, 2023	BUY	$4.0 - $7.02 $1,752 - $3,074	438 Added 0.36%	123,815 $508,000
Q4 2022 Feb 13, 2023	SELL	$5.65 - $7.86 $521,743 - $725,823	-92,344 Reduced 42.81%	123,377 $722,000
Q3 2022 Nov 10, 2022	BUY	$4.63 - $8.0 $427,543 - $738,736	92,342 Added 74.84%	215,721 $1.46 Million
Q2 2022 Aug 12, 2022	SELL	$2.84 - $5.0 $9,440 - $16,620	-3,324 Reduced 2.62%	123,379 $570,000
Q1 2022 May 13, 2022	BUY	$3.74 - $6.63 $18,759 - $33,256	5,016 Added 4.12%	126,703 $505,000
Q4 2021 Feb 14, 2022	SELL	$5.48 - $9.86 $637,581 - $1.15 Million	-116,347 Reduced 48.88%	121,687 $757,000
Q3 2021 Nov 15, 2021	SELL	$8.56 - $14.47 $1.22 Million - $2.05 Million	-141,995 Reduced 37.36%	238,034 $2.24 Million
Q2 2021 Aug 13, 2021	BUY	$13.28 - $18.07 $5.05 Million - $6.87 Million	380,029 New	380,029 $5.16 Million

Others Institutions Holding MRSN

# of Institutions

Shares Held

94.3M

Call Options Held

34.3K

Put Options Held

14K

View Full List

About Mersana Therapeutics, Inc.

Ticker MRSN
Exchange NASDAQ
Sector Healthcare
Industry Biotechnology
Shares Outstandng 97,169,296
Market Cap $947M
Description
Mersana Therapeutics, Inc., a clinical stage biopharmaceutical company, develops antibody drug conjugates (ADC) for cancer patients with unmet need. It develops XMT-1592, a Dolasynthen ADC targeting NaPi2b-expressing tumor cells, which is in phase I clinical trial for the treatment of ovarian cancer and NSCLC adenocarcinoma. The company also dev...

More about MRSN

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