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MRSN Insider Trading (Mersana Therapeutics)

Insider Ownership Percentage: 4.40%
Insider Buying (Last 12 Months): $9,646,046.46
Insider Selling (Last 12 Months): $92,007.15

Mersana Therapeutics Insider Trading History Chart

This chart shows the insider buying and selling history at Mersana Therapeutics by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Mersana Therapeutics Share Price & Price History

Current Price: $7.82
Price Change: ▲ Price Increase of +0.82 (11.71%)
As of 08/10/2022 01:00 AM ET

This chart shows the closing price history over time for MRSN up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365
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Mersana Therapeutics Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
6/2/2022Andrew A. F. HackDirectorBuy14,760$3.20$47,232.008,663,673View SEC Filing Icon  
5/31/2022Andrew A. F. HackDirectorBuy80,759$3.28$264,889.528,648,913View SEC Filing Icon  
5/25/2022Andrew A. F. HackDirectorBuy90,155$3.17$285,791.358,493,154View SEC Filing Icon  
5/23/2022Andrew A. F. HackDirectorBuy15,599$3.35$52,256.658,302,999View SEC Filing Icon  
5/20/2022Andrew A. F. HackDirectorBuy100,000$3.46$346,000.008,287,400View SEC Filing Icon  
5/18/2022Andrew A. F. HackDirectorBuy211,268$3.35$707,747.808,087,400View SEC Filing Icon  
5/16/2022Andrew A. F. HackDirectorBuy135,292$3.10$419,405.207,872,692View SEC Filing Icon  
4/26/2022Alejandra CarvajalInsiderSell3,948$3.69$14,568.129,302View SEC Filing Icon  
4/12/2022Andrew A. F. HackDirectorBuy598,086$4.18$2,499,999.487,120,116View SEC Filing Icon  
2/7/2022Andrew A. F. HackDirectorBuy1,136,363$4.42$5,022,724.46View SEC Filing Icon  
1/18/2022Ashish MandeliaVPSell1,982$5.92$11,733.44View SEC Filing Icon  
1/18/2022Timothy B. LowingerInsiderSell4,741$5.92$28,066.72View SEC Filing Icon  
12/1/2021Arvin YangInsiderSell5,527$6.81$37,638.87View SEC Filing Icon  
7/19/2021Anna ProtopapasCEOSell21,901$12.02$263,250.02324,922View SEC Filing Icon  
7/19/2021Timothy B. LowingerInsiderSell8,496$12.02$102,121.92View SEC Filing Icon  
7/16/2021Anna ProtopapasCEOSell20,043$12.47$249,936.21324,922View SEC Filing Icon  
7/16/2021Timothy B. LowingerInsiderSell7,775$12.47$96,954.25View SEC Filing Icon  
7/1/2021Timothy B. LowingerInsiderSell1,886$13.60$25,649.6033,321View SEC Filing Icon  
6/21/2021Timothy B. LowingerInsiderSell2,220$13.78$30,591.6031,446View SEC Filing Icon  
6/1/2021Lawrence M. AllevaDirectorBuy1,035$14.38$14,883.30View SEC Filing Icon  
5/20/2021Timothy B. LowingerInsiderSell4,102$14.10$57,838.2033,319View SEC Filing Icon  
4/20/2021Timothy B. LowingerInsiderSell4,102$15.91$65,262.8233,319View SEC Filing Icon  
3/22/2021Timothy B. LowingerInsiderSell8,203$17.50$143,552.5033,318View SEC Filing Icon  
1/20/2021Timothy B. LowingerInsiderSell8,203$21.54$176,692.6233,318View SEC Filing Icon  
1/19/2021Ashish MandeliaVPSell545$21.28$11,597.60834View SEC Filing Icon  
1/12/2021Andrew A. F. HackDirectorBuy250,000$18.36$4,590,000.00View SEC Filing Icon  
1/8/2021Andrew A. F. HackDirectorBuy100,000$18.39$1,839,000.00View SEC Filing Icon  
1/4/2021Ashish MandeliaVPSell247$26.76$6,609.72View SEC Filing Icon  
12/21/2020Timothy B. LowingerInsiderSell8,203$25.60$209,996.801,874View SEC Filing Icon  
11/20/2020Timothy B. LowingerInsiderSell8,203$23.05$189,079.151,874View SEC Filing Icon  
10/21/2020Timothy B. LowingerInsiderSell4,101$17.50$71,767.501,875View SEC Filing Icon  
9/21/2020Timothy B. LowingerInsiderSell20,614$20.66$425,885.2416,160View SEC Filing Icon  
9/14/2020Eva M JackInsiderSell35,248$22.00$775,456.0035,248View SEC Filing Icon  
7/2/2020Ashish MandeliaVPSell3,383$22.49$76,083.67
6/1/2020Lawrence M AllevaDirectorBuy1,085$22.95$24,900.75385View SEC Filing Icon  
4/13/2020Scott D SandellMajor ShareholderSell20,914$8.50$177,769.00View SEC Filing Icon  
4/7/2020Andrew A. F. HackDirectorBuy3,445,667$9.43$32,492,639.81538,599View SEC Filing Icon  
See Full Table
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SEC Filings (Institutional Ownership Changes) for Mersana Therapeutics (NASDAQ:MRSN)

92.74% 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

This chart shows the instiutional buying and selling at MRSN by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Mersana Therapeutics Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/10/2022Principal Financial Group Inc.13,938$64K0.0%+24.8%0.014%Search for SEC Filing on Google Icon
8/9/2022Swiss National Bank177,996$0.82M0.0%+30.9%0.184%Search for SEC Filing on Google Icon
8/8/2022Walleye Capital LLC10,264$47K0.0%-97.4%0.011%Search for SEC Filing on Google Icon
8/3/2022Candriam S.C.A.1,990,559$9.20M0.1%+7.9%2.052%Search for SEC Filing on Google Icon
8/1/2022Victory Capital Management Inc.12,537$58K0.0%+22.2%0.013%Search for SEC Filing on Google Icon
8/1/2022ProShare Advisors LLC17,399$80K0.0%-21.1%0.018%Search for SEC Filing on Google Icon
7/29/2022SG Americas Securities LLC47,555$0.22M0.0%N/A0.049%Search for SEC Filing on Google Icon
7/28/2022Arizona State Retirement System20,481$95K0.0%+31.7%0.021%Search for SEC Filing on Google Icon
7/26/2022Mirae Asset Global Investments Co. Ltd.22,616$0.10M0.0%N/A0.023%Search for SEC Filing on Google Icon
7/25/2022Silverarc Capital Management LLC850,000$3.93M1.2%N/A0.876%Search for SEC Filing on Google Icon
6/7/2022Bank of America Corp DE34,505$0.14M0.0%-19.5%0.036%Search for SEC Filing on Google Icon
5/18/2022BNP Paribas Arbitrage SA652,613$2.60M0.0%+5.5%0.673%Search for SEC Filing on Google Icon
5/17/2022Virtu Financial LLC13,274$53K0.0%N/A0.014%Search for SEC Filing on Google Icon
5/17/2022Point72 Hong Kong Ltd14,280$57K0.0%+55.7%0.015%Search for SEC Filing on Google Icon
5/17/2022Quantbot Technologies LP9,354$37K0.0%N/A0.010%Search for SEC Filing on Google Icon
5/17/2022Rock Springs Capital Management LP3,755,820$14.99M0.4%+15.6%3.872%Search for SEC Filing on Google Icon
5/17/2022Dynamic Technology Lab Private Ltd17,027$68K0.0%-48.2%0.018%Search for SEC Filing on Google Icon
5/16/2022California State Teachers Retirement System80,349$0.32M0.0%-7.9%0.083%Search for SEC Filing on Google Icon
5/16/2022Goldman Sachs Group Inc.1,650,752$6.59M0.0%+36.5%1.702%Search for SEC Filing on Google Icon
5/16/2022PDT Partners LLC326,419$1.30M0.1%+192.3%0.337%Search for SEC Filing on Google Icon
5/16/2022Pinz Capital Management LP400,000$1.60M1.0%N/A0.412%Search for SEC Filing on Google Icon
5/16/2022Wellington Management Group LLP480,644$1.92M0.0%-90.4%0.496%Search for SEC Filing on Google Icon
5/16/2022State Street Corp1,352,150$5.40M0.0%-68.0%1.394%Search for SEC Filing on Google Icon
5/16/2022Engineers Gate Manager LP10,128$40K0.0%-50.6%0.010%Search for SEC Filing on Google Icon
5/16/2022UBS Group AG15,124$60K0.0%-91.7%0.016%Search for SEC Filing on Google Icon
5/13/2022Renaissance Technologies LLC919,200$3.67M0.0%+168.3%0.948%Search for SEC Filing on Google Icon
5/13/2022Bellevue Group AG3,954,000$15.78M0.2%-5.0%4.077%Search for SEC Filing on Google Icon
5/13/2022Northern Trust Corp724,255$2.89M0.0%-3.2%0.747%Search for SEC Filing on Google Icon
5/13/2022Charles Schwab Investment Management Inc.464,660$1.85M0.0%-4.8%0.479%Search for SEC Filing on Google Icon
5/13/2022Federated Hermes Inc.723,933$2.89M0.0%+257.4%0.746%Search for SEC Filing on Google Icon
5/13/2022Candriam Luxembourg S.C.A.1,844,823$7.36M0.1%-8.8%1.902%Search for SEC Filing on Google Icon
5/13/2022Vanguard Group Inc.3,435,270$13.71M0.0%-4.8%3.542%Search for SEC Filing on Google Icon
5/13/2022Allianz Asset Management GmbH208,520$0.83M0.0%-24.0%0.215%Search for SEC Filing on Google Icon
5/13/2022Dimensional Fund Advisors LP186,040$0.74M0.0%-4.4%0.192%Search for SEC Filing on Google Icon
5/12/2022BlackRock Inc.7,626,196$30.43M0.0%+2.0%9.145%Search for SEC Filing on Google Icon
5/12/2022Artal Group S.A.2,200,000$8.78M0.4%+83.3%2.638%Search for SEC Filing on Google Icon
5/12/2022Healthcare of Ontario Pension Plan Trust Fund379,000$1.51M0.0%N/A0.454%Search for SEC Filing on Google Icon
5/12/2022Bank of Montreal Can1,157,635$4.67M0.0%N/A1.388%Search for SEC Filing on Google Icon
5/12/2022Citigroup Inc.6,358$25K0.0%-97.2%0.008%Search for SEC Filing on Google Icon
5/11/2022JPMorgan Chase & Co.309,629$1.24M0.0%+880.4%0.371%Search for SEC Filing on Google Icon
5/11/2022GSA Capital Partners LLP78,706$0.31M0.0%-9.6%0.094%Search for SEC Filing on Google Icon
5/10/2022ProShare Advisors LLC22,048$88K0.0%-14.4%0.026%Search for SEC Filing on Google Icon
5/10/2022Decheng Capital Management III Cayman LLC904,268$3.61M1.1%N/A1.084%Search for SEC Filing on Google Icon
5/9/2022Swiss National Bank135,996$0.54M0.0%+7.6%0.163%Search for SEC Filing on Google Icon
5/9/2022Qube Research & Technologies Ltd299,454$1.20M0.0%+418.5%0.359%Search for SEC Filing on Google Icon
5/6/2022Grimes & Company Inc.14,369$57K0.0%N/A0.017%Search for SEC Filing on Google Icon
5/5/2022New York State Common Retirement Fund48,823$0.20M0.0%-5.8%0.059%Search for SEC Filing on Google Icon
5/5/2022Russell Investments Group Ltd.56,458$0.22M0.0%N/A0.068%Search for SEC Filing on Google Icon
5/4/2022Victory Capital Management Inc.10,262$36K0.0%N/A0.012%Search for SEC Filing on Google Icon
4/29/2022Nisa Investment Advisors LLC48,710$0.19M0.0%+7,885.2%0.058%Search for SEC Filing on Google Icon
4/21/2022Zurcher Kantonalbank Zurich Cantonalbank7,262$29K0.0%-26.1%0.009%Search for SEC Filing on Google Icon
3/3/2022Walleye Capital LLC394,760$2.46M0.1%+230.9%0.549%Search for SEC Filing on Google Icon
2/14/2022PDT Partners LLC111,670$0.70M0.1%+266.2%0.155%Search for SEC Filing on Google Icon
2/14/2022Virtus ETF Advisers LLC29,974$0.19M0.1%+111.6%0.042%Search for SEC Filing on Google Icon
2/14/2022Point72 Hong Kong Ltd9,173$57K0.0%N/A0.013%Search for SEC Filing on Google Icon
2/14/2022Point72 Asset Management L.P.818,100$5.09M0.0%N/A1.138%Search for SEC Filing on Google Icon
2/14/2022GSA Capital Partners LLP87,065$0.54M0.1%N/A0.121%Search for SEC Filing on Google Icon
2/11/2022Allianz Asset Management GmbH274,368$1.71M0.0%+18.0%0.382%Search for SEC Filing on Google Icon
2/10/2022Bridgefront Capital LLC15,622$97K0.1%N/A0.022%Search for SEC Filing on Google Icon
2/10/2022Qube Research & Technologies Ltd57,757$0.36M0.0%N/A0.080%Search for SEC Filing on Google Icon
2/10/2022Rafferty Asset Management LLC278,798$1.73M0.0%+72.1%0.388%Search for SEC Filing on Google Icon
2/10/2022Citigroup Inc.227,032$1.41M0.0%+100.3%0.316%Search for SEC Filing on Google Icon
2/10/2022Bellevue Group AG4,164,000$25.90M0.3%-2.3%5.790%Search for SEC Filing on Google Icon
2/10/2022Teacher Retirement System of Texas10,819$67K0.0%N/A0.015%Search for SEC Filing on Google Icon
2/9/2022Principal Financial Group Inc.10,511$65K0.0%-59.6%0.015%Search for SEC Filing on Google Icon
2/9/2022BNP Paribas Arbitrage SA618,416$3.85M0.0%+761.5%0.860%Search for SEC Filing on Google Icon
2/9/2022Dimensional Fund Advisors LP194,516$1.21M0.0%+3.7%0.270%Search for SEC Filing on Google Icon
2/8/2022Swiss National Bank126,396$0.79M0.0%+2.8%0.176%Search for SEC Filing on Google Icon
2/8/2022CIBC Asset Management Inc1,055,994$6.57M0.0%-0.3%1.468%Search for SEC Filing on Google Icon
2/8/2022Northern Trust Corp747,876$4.65M0.0%+7.3%1.040%Search for SEC Filing on Google Icon
2/7/2022SG Americas Securities LLC16,263$0.10M0.0%-55.7%0.023%Search for SEC Filing on Google Icon
2/1/2022Assenagon Asset Management S.A.1,073,748$6.68M0.0%+18.8%1.493%Search for SEC Filing on Google Icon
2/1/2022Qube Research & Technologies Ltd57,757$0.36M0.0%N/A0.080%Search for SEC Filing on Google Icon
12/29/2021Hudson Bay Capital Management LP175,000$1.65M0.0%+150.0%0.243%Search for SEC Filing on Google Icon
11/16/2021Two Sigma Advisers LP630,000$5.94M0.0%+11.0%0.878%Search for SEC Filing on Google Icon
11/16/2021Two Sigma Investments LP348,245$3.28M0.0%-38.3%0.485%Search for SEC Filing on Google Icon
11/16/2021Voloridge Investment Management LLC96,451$0.91M0.0%N/A0.134%Search for SEC Filing on Google Icon
11/16/2021Wellington Management Group LLP6,007,375$56.65M0.0%-12.6%8.371%Search for SEC Filing on Google Icon
11/16/2021Metropolitan Life Insurance Co NY14,952$0.14M0.0%-24.4%0.021%Search for SEC Filing on Google Icon
11/15/2021Sarissa Capital Management LP4,299,297$40.54M3.2%+7.3%5.991%Search for SEC Filing on Google Icon
11/15/2021California State Teachers Retirement System83,710$0.79M0.0%-11.8%0.117%Search for SEC Filing on Google Icon
11/15/2021Rock Springs Capital Management LP3,020,702$28.49M0.6%+6.2%4.209%Search for SEC Filing on Google Icon
11/15/2021Marshall Wace LLP384,736$3.63M0.0%+1,838.7%0.536%Search for SEC Filing on Google Icon
11/15/2021First Manhattan Co.218,070$2.06M0.0%N/A0.304%Search for SEC Filing on Google Icon
11/15/2021Dimensional Fund Advisors LP187,516$1.77M0.0%+6.5%0.261%Search for SEC Filing on Google Icon
11/12/2021Macquarie Group Ltd.156,764$1.48M0.0%+3.5%0.218%Search for SEC Filing on Google Icon
11/12/2021The Manufacturers Life Insurance Company38,053$0.36M0.0%-4.4%0.053%Search for SEC Filing on Google Icon
11/12/2021Credit Suisse AG52,096$0.49M0.0%-3.8%0.073%Search for SEC Filing on Google Icon
11/12/2021Geode Capital Management LLC1,064,335$10.04M0.0%+1.2%1.483%Search for SEC Filing on Google Icon
11/12/2021Bellevue Group AG4,261,000$40.18M0.4%+44.9%5.938%Search for SEC Filing on Google Icon
11/10/2021Goldman Sachs Group Inc.1,145,369$10.80M0.0%+98.5%1.596%Search for SEC Filing on Google Icon
11/10/2021Allianz Asset Management GmbH232,457$2.19M0.0%-18.0%0.324%Search for SEC Filing on Google Icon
11/10/2021Citigroup Inc.113,351$1.07M0.0%-38.9%0.158%Search for SEC Filing on Google Icon
11/10/2021Rafferty Asset Management LLC162,036$1.53M0.0%+37.9%0.226%Search for SEC Filing on Google Icon
11/10/2021Teachers Retirement System of The State of Kentucky47,980$0.45M0.0%+30.2%0.067%Search for SEC Filing on Google Icon
11/9/2021Barclays PLC33,016$0.31M0.0%-42.4%0.046%Search for SEC Filing on Google Icon
11/9/2021BlackRock Inc.8,807,328$83.06M0.0%-0.2%12.273%Search for SEC Filing on Google Icon
11/9/2021Candriam Luxembourg S.C.A.2,022,895$19.08M0.1%+2.5%2.819%Search for SEC Filing on Google Icon
11/9/2021TD Asset Management Inc.45,057$0.43M0.0%-39.1%0.063%Search for SEC Filing on Google Icon
11/8/2021Swiss National Bank122,996$1.16M0.0%+1.8%0.171%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Mersana Therapeutics logo
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 develops XMT-1660, a B7-H4-targeted Dolasynthen ADC candidate; and XMT-2056, an immunosynthen development candidate. It has a strategic research and development partnerships with Merck KGaA and Asana BioSciences, LLC for the development of ADC product candidates utilizing Fleximer. 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.
Read More on Mersana Therapeutics

Today's Range

Now: $7.82
Low: $6.94
High: $8.02

50 Day Range

MA: $4.75
Low: $2.98
High: $7.82

52 Week Range

Now: $7.82
Low: $2.68
High: $14.80

Volume

3,917,676 shs

Average Volume

1,664,655 shs

Market Capitalization

$758.47 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.94

Who are the company insiders with the largest holdings of Mersana Therapeutics?

Mersana Therapeutics' top insider investors include:
  1. Andrew A F Hack (Director)
  2. Anna Protopapas (CEO)
  3. Eva M Jack (Insider)
  4. Timothy B Lowinger (Insider)
  5. Alejandra Carvajal (Insider)
  6. Ashish Mandelia (VP)
  7. Arvin Yang (Insider)
  8. Lawrence M Alleva (Director)
Learn More about top insider investors at Mersana Therapeutics.

Who are the major institutional investors of Mersana Therapeutics?

Mersana Therapeutics' top institutional shareholders include:
  1. Candriam S.C.A. — 2.05%
  2. Silverarc Capital Management LLC — 0.88%
  3. Swiss National Bank — 0.18%
  4. SG Americas Securities LLC — 0.05%
  5. Mirae Asset Global Investments Co. Ltd. — 0.02%
  6. Arizona State Retirement System — 0.02%
Learn More about top institutional investors of Mersana Therapeutics stock.

Which major investors are selling Mersana Therapeutics stock?

In the previous quarter, MRSN stock was sold by these institutional investors:
  1. Walleye Capital LLC
  2. ProShare Advisors LLC
In the previous year, company insiders that have sold Mersana Therapeutics company stock include:
  1. Andrew A F Hack (Director)
  2. Anna Protopapas (CEO)
  3. Eva M Jack (Insider)
  4. Timothy B Lowinger (Insider)
Learn More investors selling Mersana Therapeutics stock.

Which major investors are buying Mersana Therapeutics stock?

In the last quarter, MRSN stock was bought by institutional investors including:
  1. Silverarc Capital Management LLC
  2. Candriam S.C.A.
  3. SG Americas Securities LLC
  4. Swiss National Bank
  5. Mirae Asset Global Investments Co. Ltd.
  6. Arizona State Retirement System
  7. Victory Capital Management Inc.
Within the last year, these company insiders have bought Mersana Therapeutics stock:
  1. Andrew A F Hack (Director)
  2. Anna Protopapas (CEO)
Learn More investors buying Mersana Therapeutics stock.
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