Insider · CIK 0001657434

Hack Andrew A. F.

CIK 0001657434 Name as filed on the most recent filing

Filed as Hack Andrew A. F. (37)

60 transaction lines · from 37 filings · filed 2017-01-13 to 2024-12-13 The span is the filing dates this catalog holds, not the entity's full filing history. Absence here is not evidence of absence at the SEC.

How this page attributes a trade

A line appears here when the filing that carries it names this CIK as a reporting owner, not only when the parser picked this CIK as the line's primary owner. That is why a joint filing appears on both owners' pages rather than vanishing from the second one. The catalog never merges two CIKs into one person and never splits one CIK into two: identity here is the SEC's own identifier and nothing else.

01

Issuers this insider has filed against

Ordered by last-seen filing date, newest first. Roles are as filed on the Form 4 and are not normalised.

Fault

This container could not be filled from the store. It is showing nothing because a read failed, not because no insider filed: those are different facts and this catalog will not let one stand in for the other. The last ingest the store recorded was 2026-08-25 05:24 UTC.

No issuer is recorded

The catalog holds no filing linking this CIK to an issuer.

02

Transactions

Every stored Form 4 line naming this reporting owner, newest transaction date first. Each row links to the filing it came from.

60 transactions · Newest transaction date first, id breaking the tie.

Fault

This container could not be filled from the store. It is showing nothing because a read failed, not because no insider filed: those are different facts and this catalog will not let one stand in for the other. The last ingest the store recorded was 2026-08-25 05:24 UTC.

Transactions filed by this insider
Direction Date Code Company Value USD Filing
2024-12-11 S, Open-market sale Nuvalent, Inc.NUVL 110,000,000, disposed Open Form 4 filing 0000950170-24-136230
2024-03-27 S, Open-market sale Nuvalent, Inc.NUVL 2 lines 64,035,959, disposed Open Form 4 filing 0000950170-24-038756
2023-08-08 S, Open-market sale Dynavax Technologies CorpDVAX 21,585,000, disposed Open Form 4 filing 0000950170-23-041402
2023-06-14 S, Open-market sale Dynavax Technologies CorpDVAX 6,340,000, disposed Open Form 4 filing 0000899243-23-015776
2023-05-18 S, Open-market sale Dynavax Technologies CorpDVAX 10,550,000, disposed Open Form 4 filing 0000899243-23-013349
2022-12-06 S, Open-market sale Dynavax Technologies CorpDVAX 17,400,000, disposed Open Form 4 filing 0000899243-22-037989
2022-11-03 P, Open-market purchase Nuvalent, Inc.NUVL 4,999,976, acquired Open Form 4 filing 0000899243-22-034893
2022-08-15 S, Open-market sale Dynavax Technologies CorpDVAX 44,040,000, disposed Open Form 4 filing 0000899243-22-029005
2022-06-02 P, Open-market purchase Mersana Therapeutics, Inc.MRSN 47,182, acquired Open Form 4 filing 0000899243-22-020726
2022-05-31 P, Open-market purchase Mersana Therapeutics, Inc.MRSN 264,776, acquired Open Form 4 filing 0000899243-22-020726
2022-05-26 P, Open-market purchase Mersana Therapeutics, Inc.MRSN 238,943, acquired Open Form 4 filing 0000899243-22-019801
2022-05-25 P, Open-market purchase Mersana Therapeutics, Inc.MRSN 286,242, acquired Open Form 4 filing 0000899243-22-019801
2022-05-24 P, Open-market purchase Mersana Therapeutics, Inc.MRSN 328,990, acquired Open Form 4 filing 0000899243-22-019801
2022-05-23 P, Open-market purchase Mersana Therapeutics, Inc.MRSN 52,247, acquired Open Form 4 filing 0000899243-22-019274
2022-05-20 P, Open-market purchase Mersana Therapeutics, Inc.MRSN 345,570, acquired Open Form 4 filing 0000899243-22-019274
2022-05-19 P, Open-market purchase Mersana Therapeutics, Inc.MRSN 348,620, acquired Open Form 4 filing 0000899243-22-019274
2022-05-18 P, Open-market purchase Mersana Therapeutics, Inc.MRSN 707,262, acquired Open Form 4 filing 0000899243-22-018652
2022-05-17 P, Open-market purchase Mersana Therapeutics, Inc.MRSN 10,952, acquired Open Form 4 filing 0000899243-22-018652
2022-05-16 P, Open-market purchase Mersana Therapeutics, Inc.MRSN 419,446, acquired Open Form 4 filing 0000899243-22-018652
2022-04-13 P, Open-market purchase Mersana Therapeutics, Inc.MRSN 2,500,000, acquired Open Form 4 filing 0000899243-22-014811
2022-04-12 P, Open-market purchase Mersana Therapeutics, Inc.MRSN 2,499,880, acquired Open Form 4 filing 0000899243-22-014730
2022-02-07 P, Open-market purchase Mersana Therapeutics, Inc.MRSN 5,022,724, acquired Open Form 4 filing 0000899243-22-005224
2021-12-30 P, Open-market purchase Mersana Therapeutics, Inc.MRSN 5,012,250, acquired Open Form 4 filing 0000899243-22-000588
2021-12-29 P, Open-market purchase Mersana Therapeutics, Inc.MRSN 5,031,250, acquired Open Form 4 filing 0000899243-22-000158
2021-08-27 S, Open-market sale Dynavax Technologies CorpDVAX 32,440,000, disposed Open Form 4 filing 0000899243-21-034455
2021-08-09 S, Open-market sale Dynavax Technologies CorpDVAX 24,300,000, disposed Open Form 4 filing 0000899243-21-032571
2021-08-02 P, Open-market purchase Nuvalent, Inc.NUVL 12,495,000, acquired Open Form 4 filing 0000899243-21-031627
2021-01-12 P, Open-market purchase Mersana Therapeutics, Inc.MRSN 1,362,000, acquired Open Form 4 filing 0000899243-21-001552
2021-01-11 P, Open-market purchase Mersana Therapeutics, Inc.MRSN 1,389,000, acquired Open Form 4 filing 0000899243-21-001552
2021-01-08 P, Open-market purchase Mersana Therapeutics, Inc.MRSN 1,839,000, acquired Open Form 4 filing 0000899243-21-001552
2020-11-03 P, Open-market purchase Atea Pharmaceuticals, Inc.AVIR 6,000,000, acquired Open Form 4 filing 0000899243-20-030340
2020-05-27 P, Open-market purchase Dynavax Technologies CorpDVAX 5,000,000, acquired Open Form 4 filing 0000899243-20-014431
2020-04-07 P, Open-market purchase Mersana Therapeutics, Inc.MRSN 2 lines 20,649,463, acquired Open Form 4 filing 0000899243-20-010592
2019-02-04 S, Open-market sale Editas Medicine, Inc.EDIT 147,484, disposed Open Form 4 filing 0001179110-19-001436
2019-01-04 S, Open-market sale Editas Medicine, Inc.EDIT 157,360, disposed Open Form 4 filing 0001179110-19-000578
2018-11-23 S, Open-market sale Editas Medicine, Inc.EDIT 2 lines 148,739, disposed Open Form 4 filing 0001179110-18-013245
2018-10-26 S, Open-market sale Editas Medicine, Inc.EDIT 154,200, disposed Open Form 4 filing 0001179110-18-012390
2018-09-28 S, Open-market sale Editas Medicine, Inc.EDIT 256,640, disposed Open Form 4 filing 0001179110-18-011848
2018-08-31 S, Open-market sale Editas Medicine, Inc.EDIT 322,300, disposed Open Form 4 filing 0001182489-18-000336
2018-06-04 S, Open-market sale Editas Medicine, Inc.EDIT 111,300, disposed Open Form 4 filing 0001179110-18-008052
2018-06-01 S, Open-market sale Editas Medicine, Inc.EDIT 2 lines 274,970, disposed Open Form 4 filing 0001179110-18-008052
2018-03-20 S, Open-market sale Editas Medicine, Inc.EDIT 3 lines 1,059,960, disposed Open Form 4 filing 0001179110-18-004702
2018-03-19 S, Open-market sale Editas Medicine, Inc.EDIT 225,900, disposed Open Form 4 filing 0001179110-18-004702
2018-03-16 S, Open-market sale Editas Medicine, Inc.EDIT 236,580, disposed Open Form 4 filing 0001179110-18-004702

This column is intentionally blank

No transaction line is stored for this reporting owner, though the catalog holds filings naming them. That happens when the filings report only holdings or only positions the store does not carry, and when a parse failed; each filing page states its own parse status.

Codes on this page
S, Open-market sale
Open-market sale
P, Open-market purchase
Open-market purchase
Relationships on this page
D, Director
Director
O, Officer
Officer

Every value is as reported on the Form 4, totalled to the dollar. Share counts, the price per share and the full list of reporting owners are on each filing's own page, which every row here opens. A row marked n lines adds up that many filed lines of one filing, on one day, on one side of the market; a filing whose lines fall across two pages is left as its lines on both, so no total here is ever short.

What this insider's stored lines contain

Exact counts over every stored line for this entity. This is a statement of composition, not a filter: the only filter this page offers is the open-market one above, because that is the only one an index serves today.

  • Open-market purchase 25
  • Open-market sale 35
  • Option exercise 0
  • Grant or award 0
  • Tax withholding 0
  • Disposition to the issuer 0
  • In-the-money option exercise 0

How to cite this page

ebomi catalog. Hack Andrew A. F., insider transactions. Retrieved 2026-08-25 from https://ebomi.com/insider/0001657434

Balogh, A. Insider trading. Scientific Data 10, 237 (2023) doi:10.1038/s41597-023-02147-6

This page as JSON The JSON twin is shaped by the same read model as this page, so the two cannot disagree. Its envelope carries the canonical URL, the retrieval time, the coverage claim, and the licence statement.