Summary
Updated Aug 31, 2026
Hairihan Tong is Chief Technology Officer of CTW (CTW). 1 SEC Form 4 filing on record, dated 29 May 2026. Most recent open-market trade: sold $1K of CTW on 29 May 2026. Lifetime open-market sales: $1K.
Recent Transactions
2Every recent SEC Form 4 transaction Hairihan Tong has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Hairihan Tong go back to 2026: 1 primary Form 4 filing, an average of 1.0 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
Hairihan Tong has no co-filers on record, so these are insiders with the largest open-market activity across the market in the last 90 days.
- Ronald Clarke - $88.51M of CPAY open-market activity in the last 90 days
- Yousif Mohammed Ali Nasser Al-Nowais - $88.47M of NESR open-market activity in the last 90 days
- Thomas J. Nimbley - $87.92M of PBF open-market activity in the last 90 days
- John Colgrove - $87.13M of P open-market activity in the last 90 days
- David Zaslav - $86.59M of WBD open-market activity in the last 90 days
- Alexander C. Karp - $86.06M of PLTR 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
Who is Hairihan Tong?
Hairihan Tong is a corporate insider, tracked as Chief Technology Officer of CTW (CTW). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Hairihan Tong last file a Form 4?
The only primary Form 4 on record is dated 29 May 2026.
Has Hairihan Tong been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($1K) across all tracked filings.
Where can I see all of Hairihan Tong'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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