Summary
Updated Aug 31, 2026
GC Corp. files SEC Form 4 reports at Artiva Biotherapeutics, Inc. (ARTV). 1 SEC Form 4 filing on record, dated 28 May 2026. Most recent open-market trade: bought $4.00M of ARTV on 28 May 2026. Lifetime open-market purchases: $16.50M.
Recent Transactions
2Every recent SEC Form 4 transaction GC Corp. has reported, most recent first.
Trading Pattern
InsiderAlpha's records for GC Corp. go back to 2026: 1 primary Form 4 filing, an average of 1.0 per year. The typical open-market purchase is $8.25M (2 buys totaling $16.50M). The largest single buy on record is $12.50M of ARTV in 2026. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies GC Corp. 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.
- RA CAPITAL MANAGEMENT, L.P. - $117.62M of ARTV open-market activity in the last 12 months
- Fred Aslan - $419K of ARTV open-market activity in the last 12 months
- Jennifer Bush - $79K of ARTV open-market activity in the last 12 months
- Subhashis Banerjee - $69K of ARTV open-market activity in the last 12 months
- Christopher Horan - $63K of ARTV open-market activity in the last 12 months
- Heather Raymon - $28K of ARTV 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
What is GC Corp.?
GC Corp. is a corporate entity of Artiva Biotherapeutics, Inc. (ARTV). InsiderAlpha holds 1 primary Form 4 filing for it, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did GC Corp. last file a Form 4?
The only primary Form 4 on record is dated 28 May 2026.
Has GC Corp. been buying or selling stock?
Recorded transactions: 2 open-market purchases ($16.50M) and 0 open-market sales across all tracked filings.
Where can I see all of GC Corp.'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.
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