Balyasny Asset Management LLC Mersana Therapeutics, Inc. Transaction History

Balyasny Asset Management LLC

$61.9 Billion
Q2 2025

17 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2024 Nov 14, 2024	BUY	$1.23 - $2.25 $659,057 - $1.21 Million	535,819 New	535,819 $1.01 Million
Q1 2024 May 13, 2024	SELL	$2.16 - $5.94 $13.1 Million - $35.9 Million	-6,042,149 Reduced 62.3%	3,655,998 $16.4 Million
Q4 2023 Feb 14, 2024	BUY	$1.11 - $2.34 $5.17 Million - $10.9 Million	4,657,247 Added 92.39%	9,698,147 $22.5 Million
Q3 2023 Nov 14, 2023	BUY	$1.06 - $3.91 $213,468 - $787,415	201,385 Added 4.16%	5,040,900 $6.4 Million
Q2 2023 Aug 14, 2023	BUY	$3.08 - $9.55 $14.9 Million - $46.2 Million	4,839,515 New	4,839,515 $15.9 Million
Q4 2022 Feb 14, 2023	SELL	$5.65 - $7.86 $321,654 - $447,469	-56,930 Reduced 89.62%	6,597 $38,000
Q3 2022 Nov 14, 2022	BUY	$4.63 - $8.0 $38,327 - $66,224	8,278 Added 14.98%	63,527 $430,000
Q2 2022 Aug 15, 2022	BUY	$2.84 - $5.0 $75,896 - $133,620	26,724 Added 93.69%	55,249 $255,000
Q1 2022 May 16, 2022	BUY	$3.74 - $6.63 $51,967 - $92,123	13,895 Added 94.98%	28,525 $114,000
Q4 2021 Feb 14, 2022	BUY	$5.48 - $9.86 $80,172 - $144,251	14,630 New	14,630 $91,000
Q2 2021 Aug 16, 2021	SELL	$13.28 - $18.07 $260,766 - $354,822	-19,636 Closed	0 $0
Q1 2021 May 17, 2021	BUY	$15.31 - $26.52 $300,627 - $520,746	19,636 New	19,636 $318,000
Q4 2020 Feb 16, 2021	SELL	$16.84 - $27.59 $2.56 Million - $4.19 Million	-151,958 Closed	0 $0
Q3 2020 Nov 16, 2020	BUY	$16.2 - $25.7 $2.46 Million - $3.91 Million	151,958 New	151,958 $2.83 Million
Q4 2018 Feb 14, 2019	SELL	$3.45 - $9.72 $124,510 - $350,794	-36,090 Closed	0 $0
Q3 2018 Nov 14, 2018	SELL	$10.0 - $19.02 $465,100 - $884,620	-46,510 Reduced 56.31%	36,090 $361,000
Q2 2018 Aug 14, 2018	BUY	$14.2 - $22.68 $1.17 Million - $1.87 Million	82,600 New	82,600 $1.48 Million

Others Institutions Holding MRSN

# of Institutions

Shares Held

94.9M

Call Options Held

34.3K

Put Options Held

14K

Nextech Invest Ag

12.1M
Shares

$73.2 Million
3.22% of portfolio
Nextech Invest, Ltd. Zurich, V8

12.1M
Shares

$73.2 Million
0.68% of portfolio
Bain Capital Life Sciences Investors, LLC Boston, MA

8.66M
Shares

$52.6 Million
0.78% of portfolio
Black Rock Inc. New York, NY

8.38M
Shares

$50.9 Million
0.0% of portfolio
Vanguard Group Inc Valley Forge, PA

7.68M
Shares

$46.6 Million
0.0% of portfolio

View Full List

About Mersana Therapeutics, Inc.

Ticker MRSN
Exchange NASDAQ
Sector Healthcare
Industry Biotechnology
Shares Outstandng 97,169,296
Market Cap $590M
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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