Summary
Updated Aug 31, 2026
DUMAC, INC. files SEC Form 4 reports at Rigel Resource Acquisition Corp. (RRAC). 1 SEC Form 4 filing on record, dated 4 December 2025. Most recent open-market trade: sold $1.83M of RRAC on 4 December 2025. Lifetime open-market sales: $12.15M.
Recent Transactions
4Every recent SEC Form 4 transaction DUMAC, INC. has reported, most recent first.
Trading Pattern
InsiderAlpha's records for DUMAC, INC. go back to 2025: 1 primary Form 4 filing, an average of 0.5 per year. 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.
Most Active Insiders Right Now
DUMAC, INC. has no co-filers on record, so these are insiders with the largest open-market activity across the market in the last 90 days.
- SUMITOMO MITSUI FINANCIAL GROUP, INC. - $995.27M of JEF open-market activity in the last 90 days
- Uber Technologies, Inc - $950.85M of AUR open-market activity in the last 90 days
- KKR Group Partnership L.P. - $857.49M of BTSG open-market activity in the last 90 days
- KKR Phoenix Aggregator L.P. - $857.49M of BTSG open-market activity in the last 90 days
- Angeliki Frangou - $850.25M of NMM open-market activity in the last 90 days
- Walton Family Holdings Trust - $736.51M of WMT open-market activity in the last 90 days
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
What is DUMAC, INC.?
DUMAC, INC. is a corporate entity of Rigel Resource Acquisition Corp. (RRAC). InsiderAlpha holds 1 primary Form 4 filing for it, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did DUMAC, INC. last file a Form 4?
The only primary Form 4 on record is dated 4 December 2025.
Has DUMAC, INC. been buying or selling stock?
Recorded transactions: 0 open-market purchases and 4 open-market sales ($12.15M) across all tracked filings.
Where can I see all of DUMAC, INC.'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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