Insider · CIK 0001657434

Hack Andrew A. F.

Reports to the SEC for 7 companies · BOSTON, MA

sec.gov

Transactions

Companies

Filings

CIK

0001657434

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−1,800 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−439 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−1,002 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−734 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−2,200 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc.U Disposition from Tender	Director	UDisposition from Tender	−347K sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−2,460 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−2,088 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−400 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc.U Disposition from Tender	Director	UDisposition from Tender	−578 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−118 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−368 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−1,000 sh	—	—	0
2025-06-12	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)A Award	Director	AAward	+61.5K sh	—	—	61,500
2024-12-11	NUVLNuvalent, Inc.S Sale	Director	SSale	−1.25M sh	$88.00	−$110M	1,447,267
2024-06-12	NUVLNuvalent, Inc.A Award	Director	AAward	+2,499 sh	—	—	2,499
2024-06-12	NUVLNuvalent, Inc. · Stock Option (right to buy)A Award	Director	AAward	+3,789 sh	—	—	3,789
2024-06-11	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)A Award	Director	AAward	+55K sh	—	—	55,000
2024-03-27	NUVLNuvalent, Inc.S Sale	Director	SSale	−792K sh	$72.31	−$57.3M	2,697,267
2024-03-27	NUVLNuvalent, Inc.S Sale	Director	SSale	−88.2K sh	$76.88	−$6.78M	3,489,062
2023-08-08	DVAXDYNAVAX TECHNOLOGIES CORPS Sale	Director	SSale	−1.5M sh	$14.39	−$21.6M	915,000
2023-06-15	NUVLNuvalent, Inc. · Stock Option (Right to Buy)A Award	Director	AAward	+15K sh	—	—	15,000
2023-06-14	DVAXDYNAVAX TECHNOLOGIES CORPS Sale	Director	SSale	−500K sh	$12.68	−$6.34M	2,415,000
2023-06-08	MRSNMersana Therapeutics, Inc.A Award	Director	AAward	+14.5K sh	—	—	14,467
2023-06-08	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)A Award	Director	AAward	+18.4K sh	—	—	18,355
2023-05-26	DVAXDYNAVAX TECHNOLOGIES CORP · Stock Option (Right to Buy)A Award	Director	AAward	+22.5K sh	—	—	22,500
2023-05-26	DVAXDYNAVAX TECHNOLOGIES CORPA Award	Director	AAward	+5,357 sh	—	—	10,714
2023-05-18	DVAXDYNAVAX TECHNOLOGIES CORPS Sale	Director	SSale	−1M sh	$10.55	−$10.6M	2,915,000
2022-12-06	DVAXDYNAVAX TECHNOLOGIES CORPS Sale	Director	SSale	−1.5M sh	$11.60	−$17.4M	3,915,000
2022-11-03	NUVLNuvalent, Inc.P Purchase	Director	PPurchase	+149K sh	$33.50	+$5M	3,577,267
2022-08-15	DVAXDYNAVAX TECHNOLOGIES CORPS Sale	Director	SSale	−3M sh	$14.68	−$44M	5,415,000
2022-06-16	NUVLNuvalent, Inc. · Stock Option (Right to Buy)A Award	Director	AAward	+20K sh	—	—	20,000
2022-06-09	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)A Award	Director	AAward	+45K sh	—	—	45,000
2022-06-02	MRSNMersana Therapeutics, Inc.P Purchase	Director	PPurchase	+14.8K sh	$3.20	+$47.2K	8,663,673
2022-05-31	MRSNMersana Therapeutics, Inc.P Purchase	Director	PPurchase	+80.8K sh	$3.28	+$265K	8,648,913
2022-05-26	DVAXDYNAVAX TECHNOLOGIES CORP · Option (Right to Buy)A Award	Director	AAward	+22.5K sh	—	—	22,500
2022-05-26	DVAXDYNAVAX TECHNOLOGIES CORP · Restricted Stock UnitA Award	Director	AAward	+5,357 sh	—	—	5,357
2022-05-26	MRSNMersana Therapeutics, Inc.P Purchase	Director	PPurchase	+75K sh	$3.19	+$239K	8,568,154
2022-05-25	MRSNMersana Therapeutics, Inc.P Purchase	Director	PPurchase	+90.2K sh	$3.17	+$286K	8,493,154
2022-05-24	MRSNMersana Therapeutics, Inc.P Purchase	Director	PPurchase	+100K sh	$3.29	+$329K	8,402,999
2022-05-23	MRSNMersana Therapeutics, Inc.P Purchase	Director	PPurchase	+15.6K sh	$3.35	+$52.2K	8,302,999
2022-05-20	MRSNMersana Therapeutics, Inc.P Purchase	Director	PPurchase	+100K sh	$3.46	+$346K	8,287,400
2022-05-19	MRSNMersana Therapeutics, Inc.P Purchase	Director	PPurchase	+100K sh	$3.49	+$349K	8,187,400
2022-05-18	MRSNMersana Therapeutics, Inc.P Purchase	Director	PPurchase	+211K sh	$3.35	+$707K	8,087,400
2022-05-17	MRSNMersana Therapeutics, Inc.P Purchase	Director	PPurchase	+3,440 sh	$3.18	+$11K	7,876,132
2022-05-16	MRSNMersana Therapeutics, Inc.P Purchase	Director	PPurchase	+135K sh	$3.10	+$419K	7,872,692
2022-04-13	MRSNMersana Therapeutics, Inc.P Purchase	Director	PPurchase	+617K sh	$4.05	+$2.5M	7,737,400
2022-04-12	MRSNMersana Therapeutics, Inc.P Purchase	Director	PPurchase	+598K sh	$4.18	+$2.5M	7,120,116
2022-02-07	MRSNMersana Therapeutics, Inc.P Purchase	Director	PPurchase	+1.14M sh	$4.42	+$5.02M	6,522,030
2022-01-03	MRSNMersana Therapeutics, Inc. · Stock Option (Right to Buy)A Award	Director	AAward	+11K sh	—	—	10,995

Recent filings

Accepted (ET)
Jan 64
Hack Andrew A. F.0001193125-26-004925
SEC(opens sec.gov)
Jun 134
Hack Andrew A. F.0000950170-25-086364
SEC(opens sec.gov)
Dec 134
Hack Andrew A. F.0000950170-24-136230
SEC(opens sec.gov)
Jun 144
Hack Andrew A. F.0000950170-24-073762
SEC(opens sec.gov)
Jun 124
Hack Andrew A. F.0000950170-24-072570
SEC(opens sec.gov)
Mar 294
Hack Andrew A. F.0000950170-24-038756
SEC(opens sec.gov)

Companies

Address

C/O BAIN CAPITAL LIFE SCIENCES INVESTORS 200 CLARENDON STREET

BOSTON, MA, 02116