Summary
Updated Aug 31, 2026
Andrew A. F. Hack files SEC Form 4 reports at Mersana Therapeutics, Inc. (MRSN). 2 SEC Form 4 filings on record going back to 2024, most recently on 6 January 2026. Most recent open-market trade: sold $110.00M of NUVL on 13 December 2024. Lifetime open-market sales: $110.00M.
Recent Transactions
3Every recent SEC Form 4 transaction Andrew A. F. Hack has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Andrew A. F. Hack files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- James E. Flynn - $70.87M of NUVL open-market activity in the last 12 months
- James Richard Porter - $22.75M of NUVL open-market activity in the last 12 months
- Alexandra Balcom - $18.60M of NUVL open-market activity in the last 12 months
- Deborah Ann Miller - $13.40M of NUVL open-market activity in the last 12 months
- Darlene Noci - $11.08M of NUVL open-market activity in the last 12 months
- Henry E. Pelish - $7.00M of NUVL open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Andrew A. F. Hack?
Andrew A. F. Hack is a corporate insider of Mersana Therapeutics, Inc. (MRSN). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Andrew A. F. Hack last file a Form 4?
The most recent primary Form 4 on record is dated 6 January 2026, one of 2 filings going back to 2024.
Has Andrew A. F. Hack been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($110.00M) across all tracked filings.
Where can I see all of Andrew A. F. Hack's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Follow Andrew A. F. Hack and every insider like them
A free account opens the full scored daily plan and every past day, a watchlist for any ticker, and 3 months of price history on every company page. No card.
Free plan available · Paid plans start with a 7-day free trial
