MRSN Insider Trading

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Insider Trading History
Frequently Asked Questions
About

Insider Ownership Percentage: 11.80%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $132,074.68

Mersana Therapeutics Insider Trading History Chart

Mersana Therapeutics Share Price & Price History

^$2.10

▲ +0.12 (6.06%)

As of 07/26/2024 01:00 AM ET

Days: 30 | 90 | 365

This student turned $1,300 into $45,000 in just 4 Months!

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Mersana Therapeutics Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
1/16/2024	Anna Protopapas	Director	Sell	29,399	$2.71	$79,671.29	125,153
1/16/2024	Ashish Mandelia	CAO	Sell	5,025	$2.71	$13,617.75	23,328
1/16/2024	Brian Deschuytner	CFO	Sell	9,327	$2.71	$25,276.17	54,511
1/16/2024	Tushar Misra	SVP	Sell	3,357	$2.71	$9,097.47	17,966
10/26/2023	Mohan Bala	SVP	Sell	1,912	$1.13	$2,160.56	8,733
8/17/2023	Tushar Misra	SVP	Sell	1,908	$1.18	$2,251.44	11,507
4/27/2023	Alejandra Carvajal	SVP	Sell	3,944	$3.89	$15,342.16	20,326
1/17/2023	Anna Protopapas	CEO	Sell	17,346	$5.74	$99,566.04	48,733
1/17/2023	Arvin Yang	SVP	Sell	2,209	$5.74	$12,679.66	30,821
1/17/2023	Ashish Mandelia	VP	Sell	3,575	$5.74	$20,520.50	13,619
1/17/2023	Brian Deschuytner	CFO	Sell	5,131	$5.74	$29,451.94	32,781
1/17/2023	Tushar Misra	CMO	Sell	458	$5.74	$2,628.92	5,930
8/17/2022	Tushar Misra	Insider	Sell	1,879	$7.10	$13,340.90	4,371
6/2/2022	Andrew A. F. Hack	Director	Buy	14,760	$3.20	$47,232.00	8,663,673
5/31/2022	Andrew A. F. Hack	Director	Buy	80,759	$3.28	$264,889.52	8,648,913
5/25/2022	Andrew A. F. Hack	Director	Buy	90,155	$3.17	$285,791.35	8,493,154
5/23/2022	Andrew A. F. Hack	Director	Buy	15,599	$3.35	$52,256.65	8,302,999
5/20/2022	Andrew A. F. Hack	Director	Buy	100,000	$3.46	$346,000.00	8,287,400
5/18/2022	Andrew A. F. Hack	Director	Buy	211,268	$3.35	$707,747.80	8,087,400
5/16/2022	Andrew A. F. Hack	Director	Buy	135,292	$3.10	$419,405.20	7,872,692
4/26/2022	Alejandra Carvajal	Insider	Sell	3,948	$3.69	$14,568.12	9,302
4/12/2022	Andrew A. F. Hack	Director	Buy	598,086	$4.18	$2,499,999.48	7,120,116
2/7/2022	Andrew A. F. Hack	Director	Buy	1,136,363	$4.42	$5,022,724.46
1/18/2022	Ashish Mandelia	VP	Sell	1,982	$5.92	$11,733.44
1/18/2022	Timothy B. Lowinger	Insider	Sell	4,741	$5.92	$28,066.72
12/1/2021	Arvin Yang	Insider	Sell	5,527	$6.81	$37,638.87

This student turned $1,300 into $45,000 in just 4 Months!

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With the help of S.A.M. (my new AI-powered scanner) it's now easier than ever to find these unique trades... In fact, it just detected a move happening this MONDAY.

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SEC Filings (Institutional Ownership Changes) for Mersana Therapeutics (NASDAQ:MRSN)

93.92% of Mersana Therapeutics stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

Mersana Therapeutics Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
7/26/2024	Bank of New York Mellon Corp	452,829	$0.91M	0.0%	+19.6%	0.370%
7/12/2024	SG Americas Securities LLC	138,722	$0.28M	0.0%	+313.9%	0.113%
5/17/2024	Walleye Trading LLC	31,526	$0.14M	0.0%	N/A	0.026%
5/16/2024	California State Teachers Retirement System	11,145	$50K	0.0%	-38.9%	0.009%
5/16/2024	Jacobs Levy Equity Management Inc.	809,879	$3.63M	0.0%	-13.0%	0.662%
5/15/2024	Price T Rowe Associates Inc. MD	79,932	$0.36M	0.0%	+6.6%	0.065%
5/10/2024	Acadian Asset Management LLC	468,923	$2.10M	0.0%	+166.7%	0.387%
5/10/2024	Vanguard Group Inc.	6,274,370	$28.11M	0.0%	+0.6%	5.172%
5/8/2024	Russell Investments Group Ltd.	9,453	$42K	0.0%	+976.7%	0.008%
5/7/2024	Susquehanna Fundamental Investments LLC	234,116	$1.05M	0.0%	N/A	0.193%
5/7/2024	ClariVest Asset Management LLC	471,848	$2.11M	0.2%	N/A	0.389%
5/7/2024	SG Americas Securities LLC	33,513	$0.15M	0.0%	-14.6%	0.028%
5/1/2024	BNP Paribas Financial Markets	80,735	$0.36M	0.0%	+90.0%	0.067%
5/1/2024	Mirae Asset Global Investments Co. Ltd.	54,127	$0.23M	0.0%	N/A	0.045%
4/23/2024	Hunter Perkins Capital Management LLC	15,000	$67K	0.0%	-41.6%	0.012%
2/20/2024	Readystate Asset Management LP	295,038	$0.68M	0.0%	N/A	0.244%
2/13/2024	Tower Research Capital LLC TRC	24,533	$57K	0.0%	-49.2%	0.020%
2/13/2024	Affinity Asset Advisors LLC	1,000,000	$2.32M	0.4%	-64.9%	0.828%
2/8/2024	Foundations Investment Advisors LLC	102,000	$0.24M	0.0%	N/A	0.085%
2/5/2024	Victory Capital Management Inc.	12,732	$30K	0.0%	N/A	0.011%
1/25/2024	Nisa Investment Advisors LLC	17,643	$41K	0.0%	+479.8%	0.015%
1/18/2024	Hunter Perkins Capital Management LLC	25,700	$60K	0.0%	-30.5%	0.021%
1/12/2024	SG Americas Securities LLC	39,226	$91K	0.0%	-15.9%	0.033%
1/8/2024	Harbor Capital Advisors Inc.	47,472	$0.11M	0.0%	+28.1%	0.039%
1/5/2024	Exchange Traded Concepts LLC	98,729	$0.23M	0.0%	+34.0%	0.082%
11/21/2023	Walleye Capital LLC	2,021,467	$2.57M	0.0%	+1,205.0%	1.676%
11/15/2023	Acuta Capital Partners LLC	99,607	$0.13M	0.1%	N/A	0.083%
11/15/2023	Affinity Asset Advisors LLC	2,850,000	$3.62M	1.0%	N/A	2.364%
11/14/2023	Newtyn Management LLC	700,000	$0.89M	0.2%	N/A	0.581%
11/13/2023	Acadian Asset Management LLC	354,075	$0.45M	0.0%	N/A	0.294%
11/9/2023	Rhenman & Partners Asset Management AB	21,700	$28K	0.0%	-94.6%	0.018%
11/7/2023	Barclays PLC	34,154	$43K	0.0%	-81.7%	0.028%
11/7/2023	Fox Run Management L.L.C.	21,830	$28K	0.0%	N/A	0.018%
11/6/2023	Los Angeles Capital Management LLC	197,470	$0.25M	0.0%	N/A	0.164%
10/31/2023	Panagora Asset Management Inc.	251,793	$0.32M	0.0%	-7.3%	0.209%
10/20/2023	Harbor Capital Advisors Inc.	37,062	$47K	0.0%	+73.7%	0.031%
10/20/2023	Hunter Perkins Capital Management LLC	37,000	$47K	0.0%	N/A	0.031%
10/18/2023	Exchange Traded Concepts LLC	73,694	$94K	0.0%	+381.6%	0.061%
10/13/2023	SG Americas Securities LLC	46,640	$59K	0.0%	N/A	0.039%
8/15/2023	Readystate Asset Management LP	567,300	$1.87M	0.1%	N/A	0.471%
8/15/2023	Sphera Funds Management LTD.	418,562	$1.38M	0.2%	+3,840.9%	0.347%
8/15/2023	Boxer Capital LLC	1,000,000	$3.29M	0.2%	N/A	0.830%
8/14/2023	Bellevue Group AG	5,219,425	$17.17M	0.2%	+21.4%	4.331%
8/14/2023	Rock Springs Capital Management LP	3,403,133	$11.20M	0.3%	-17.1%	2.824%
8/14/2023	Graham Capital Management L.P.	73,744	$0.24M	0.0%	N/A	0.061%
8/11/2023	Pale Fire Capital SE	25,400	$84K	0.0%	N/A	0.021%
8/11/2023	Panagora Asset Management Inc.	271,501	$0.89M	0.0%	+25.6%	0.225%
8/11/2023	Artal Group S.A.	3,029,555	$9.97M	0.3%	+36.7%	2.514%
8/11/2023	E Fund Management Co. Ltd.	18,105	$60K	0.0%	-34.3%	0.015%
8/11/2023	Rhenman & Partners Asset Management AB	400,000	$1.32M	0.1%	+14.3%	0.332%
8/10/2023	Profund Advisors LLC	61,786	$0.20M	0.0%	-31.4%	0.054%
8/8/2023	Candriam S.C.A.	2,415,477	$7.95M	0.1%	-18.5%	2.112%
8/7/2023	Mirabella Financial Services LLP	14,472	$48K	0.0%	N/A	0.013%
7/20/2023	Exchange Traded Concepts LLC	15,301	$50K	0.0%	N/A	0.013%
7/11/2023	Harbor Capital Advisors Inc.	21,339	$70K	0.0%	N/A	0.019%
5/16/2023	Baker BROS. Advisors LP	1,886,115	$7.75M	0.0%	N/A	1.649%
5/12/2023	Sectoral Asset Management Inc.	343,079	$1.41M	0.3%	N/A	0.315%
5/12/2023	Panagora Asset Management Inc.	216,197	$0.89M	0.0%	+13.2%	0.198%
5/12/2023	Profund Advisors LLC	90,095	$0.37M	0.0%	N/A	0.083%
5/12/2023	Rhenman & Partners Asset Management AB	350,000	$1.40M	0.2%	-12.5%	0.321%
5/11/2023	E Fund Management Co. Ltd.	27,578	$0.11M	0.0%	+26.2%	0.025%
5/11/2023	Skandinaviska Enskilda Banken AB publ	58,469	$0.24M	0.0%	-4.7%	0.054%
5/10/2023	Connor Clark & Lunn Investment Management Ltd.	59,051	$0.24M	0.0%	-71.7%	0.054%
5/10/2023	Tekla Capital Management LLC	162,383	$0.67M	0.0%	N/A	0.149%
5/9/2023	Tower Research Capital LLC TRC	23,450	$96K	0.0%	-36.1%	0.021%
5/4/2023	Barclays PLC	198,033	$0.82M	0.0%	-14.7%	0.182%
5/4/2023	Mirae Asset Global Investments Co. Ltd.	64,065	$0.26M	0.0%	+40.7%	0.059%
5/4/2023	Los Angeles Capital Management LLC	61,790	$0.25M	0.0%	+21.0%	0.057%
5/2/2023	Amalgamated Bank	9,391	$39K	0.0%	-20.5%	0.009%
5/1/2023	CM Wealth Advisors LLC	45,367	$0.18M	0.0%	N/A	0.042%
4/28/2023	SG Americas Securities LLC	46,605	$0.19M	0.0%	-4.8%	0.043%
4/24/2023	Mackenzie Financial Corp	68,822	$0.28M	0.0%	-6.6%	0.063%
4/12/2023	Vontobel Holding Ltd.	343,079	$1.41M	0.0%	N/A	0.318%
2/15/2023	Braidwell LP	1,862,700	$10.92M	0.4%	N/A	1.867%
2/13/2023	Prio Wealth Limited Partnership	23,529	$0.14M	0.0%	N/A	0.024%
2/13/2023	Oversea Chinese Banking CORP Ltd	42,500	$0.25M	0.0%	N/A	0.043%
2/13/2023	CIBC Asset Management Inc	566,785	$3.32M	0.0%	N/A	0.568%
2/13/2023	Boulder Hill Capital Management LP	23,000	$0.14M	0.1%	N/A	0.023%
2/13/2023	Rhenman & Partners Asset Management AB	400,000	$2.34M	0.2%	N/A	0.401%
2/10/2023	Opaleye Management Inc.	460,000	$2.70M	0.9%	-48.9%	0.461%
2/10/2023	Connor Clark & Lunn Investment Management Ltd.	208,433	$1.22M	0.0%	-19.4%	0.209%
2/9/2023	Mirae Asset Global Investments Co. Ltd.	45,521	$0.27M	0.0%	+34.7%	0.046%
2/8/2023	Skandinaviska Enskilda Banken AB publ	61,322	$0.36M	0.0%	N/A	0.061%
2/8/2023	Thrivent Financial for Lutherans	60,922	$0.36M	0.0%	N/A	0.061%
2/8/2023	Swiss National Bank	187,696	$1.10M	0.0%	+2.0%	0.188%
2/8/2023	Russell Investments Group Ltd.	23,409	$0.14M	0.0%	+9.4%	0.023%
2/7/2023	Fox Run Management L.L.C.	24,652	$0.14M	0.1%	+104.0%	0.025%
2/6/2023	Los Angeles Capital Management LLC	51,065	$0.30M	0.0%	-54.6%	0.051%
2/2/2023	SG Americas Securities LLC	48,931	$0.29M	0.0%	+23.6%	0.049%
2/2/2023	ProShare Advisors LLC	20,161	$0.12M	0.0%	+11.3%	0.020%
2/1/2023	Zurcher Kantonalbank Zurich Cantonalbank	12,247	$72K	0.0%	+68.6%	0.012%
11/15/2022	Platinum Investment Management Ltd.	290,298	$1.96M	0.1%	-41.4%	0.291%
11/15/2022	Engineers Gate Manager LP	58,500	$0.40M	0.0%	N/A	0.059%
11/15/2022	Bellevue Group AG	4,082,600	$27.60M	0.4%	+4.8%	4.092%
11/14/2022	Delphia USA Inc.	14,728	$100K	0.1%	N/A	0.015%
11/14/2022	LMR Partners LLP	150,000	$1.01M	0.0%	N/A	0.150%
11/14/2022	Point72 Hong Kong Ltd	15,156	$0.10M	0.0%	N/A	0.015%
11/14/2022	Cubist Systematic Strategies LLC	392,528	$2.65M	0.0%	+228.4%	0.393%
11/14/2022	PDT Partners LLC	24,975	$0.17M	0.0%	-89.7%	0.025%
11/14/2022	Renaissance Technologies LLC	698,819	$4.72M	0.0%	+22.5%	0.700%

Data available starting January 2016

Mersana Therapeutics, Inc., a clinical stage biopharmaceutical company, develops antibody drug conjugates (ADC) for cancer patients with unmet needs. The company develops XMT-1660, a B7-H4-targeted Dolasynthen ADC candidate; and XMT-2056, an immunosynthen ADC. It has research and development collaborations with Janssen Biotech, Inc., Ares Trading S.A., Merck KGaA, and Asana BioSciences, LLC for the development of ADC product candidates. The company was formerly known as Nanopharma Corp. and changed its name to Mersana Therapeutics, Inc. in November 2005. Mersana Therapeutics, Inc. was incorporated in 2001 and is headquartered in Cambridge, Massachusetts.

Today's Range

Now: $2.10

$1.98

$2.12

50 Day Range

MA: $2.17

$1.83

$2.77

52 Week Range

Now: $2.10

$0.80

$6.28

Volume

1,078,104 shs

Average Volume

1,901,360 shs

Market Capitalization

$256.96 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.54

Who are the company insiders with the largest holdings of Mersana Therapeutics?: Mersana Therapeutics' top insider investors include:
Anna Protopapas (Director)
Brian Deschuytner (CFO)
Anna Protopapas (CEO)
Arvin Yang (SVP)
Ashish Mandelia (CAO)
Alejandra Carvajal (SVP)
Tushar Misra (SVP)
Ashish Mandelia (VP)
Mohan Bala (SVP)
Tushar Misra (CMO)
Tushar Misra (Insider)
Learn More about top insider investors at Mersana Therapeutics.
Who are the major institutional investors of Mersana Therapeutics?: Mersana Therapeutics' top institutional shareholders include:
Bank of New York Mellon Corp — 0.37%
SG Americas Securities LLC — 0.11%
Learn More about top institutional investors of Mersana Therapeutics stock.
Which major investors are buying Mersana Therapeutics stock?: During the previous quarter, MRSN stock was acquired by institutional investors including:
SG Americas Securities LLC
Bank of New York Mellon Corp