Form4insider filings, from the source

Insider · CIK 0001709775

Timothy B Lowinger

Files at: MRSN. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $125k · 3net −$125k
$10k$10k$100k$100k$1M$1MbuyssalesJul 22Aug 1Aug 12Aug 23Sep 3Sep 14Sep 25

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Sep 24, 2018 SForm 4 →Sep 25, 5:07 pm EDTMersana Therapeutics, Inc.MRSN3,500$11.63$40,70512,491−21.9% plan?
Sep 24, 2018 MForm 4 →Sep 25, 5:07 pm EDTMersana Therapeutics, Inc.MRSN3,500$1.40$4,90015,991— plan?
Aug 27, 2018 SForm 4 →Aug 29, 4:24 pm EDTMersana Therapeutics, Inc.MRSN3,500$13.15$46,02512,491−21.9% plan?
Aug 27, 2018 MForm 4 →Aug 29, 4:24 pm EDTMersana Therapeutics, Inc.MRSN3,500$7.43$26,00515,991— plan?
Jul 23, 2018 SForm 4 →Jul 25, 4:04 pm EDTMersana Therapeutics, Inc.MRSN3,500$11.06$38,71012,491−21.9% plan?
Jul 3, 2018 MForm 4 →Jul 5, 6:59 pm EDTMersana Therapeutics, Inc.MRSN10,000$1.40$14,00015,991— plan?
Feb 21, 2018 MForm 4 →Feb 23, 4:01 pm ESTMersana Therapeutics, Inc.MRSN5,911$6.98$41,2595,911— plan?

Reported trades — derivatives (options, RSUs, warrants)

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Jan 23, 2019 AForm 4 →Jan 25, 4:06 pm ESTMersana Therapeutics, Inc.MRSN60,000——60,000—
Sep 24, 2018 MForm 4 →Sep 25, 5:07 pm EDTMersana Therapeutics, Inc.MRSN3,500——89,833—
Aug 27, 2018 MForm 4 →Aug 29, 4:24 pm EDTMersana Therapeutics, Inc.MRSN3,500——1,611—
Jul 3, 2018 MForm 4 →Jul 5, 6:59 pm EDTMersana Therapeutics, Inc.MRSN10,000——93,333—
Feb 21, 2018 MForm 4 →Feb 23, 4:01 pm ESTMersana Therapeutics, Inc.MRSN5,911——0—
Feb 2, 2018 AForm 4 →Feb 6, 4:28 pm ESTMersana Therapeutics, Inc.MRSN56,884——56,884—