Summary
Updated Aug 30, 2026
ARCH Venture Partners XIII, LLC is Director, 10% Owner of Kardigan, Inc. (KARD). 2 SEC Form 4 filings on record, most recently on 24 June 2026. Most recent open-market trade: bought $20.00M of KARD on 24 June 2026. Lifetime open-market purchases: $20.00M.
Recent Transactions
2Every recent SEC Form 4 transaction ARCH Venture Partners XIII, LLC has reported, most recent first.
Trading Pattern
InsiderAlpha's records for ARCH Venture Partners XIII, LLC go back to 2026: 2 primary Form 4 filings, an average of 2.0 per year. The typical open-market purchase is $20.00M (1 buy totaling $20.00M). The largest single buy on record is $20.00M of KARD 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 ARCH Venture Partners XIII, LLC 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.
- HRTG GPE, LLC - $50.00M of KARD open-market activity in the last 12 months
- Paul L. Berns - $20.00M of KARD 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 ARCH Venture Partners XIII, LLC?
ARCH Venture Partners XIII, LLC is an investment firm, tracked as Director, 10% Owner of Kardigan, Inc. (KARD). InsiderAlpha holds 2 primary Form 4 filings for it, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has ARCH Venture Partners XIII, LLC submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Has ARCH Venture Partners XIII, LLC been buying or selling stock?
Recorded transactions: 1 open-market purchase ($20.00M) and 0 open-market sales across all tracked filings.
Where can I see all of ARCH Venture Partners XIII, LLC'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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