Summary
Updated Aug 31, 2026
Ting Xu files SEC Form 4 reports at NEWMARKET CORP (NEU). 4 SEC Form 4 filings on record going back to 2025, most recently on 1 July 2026. Most recent open-market trade: bought $248K of NEU on 25 February 2026. Lifetime open-market purchases: $248K.
Recent Transactions
4Every recent SEC Form 4 transaction Ting Xu has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Ting Xu go back to 2025: 4 primary Form 4 filings, an average of 2.0 per year. The typical open-market purchase is $248K (1 buy totaling $248K). The largest single buy on record is $248K of NEU 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 have reported open-market trades at the same companies as Ting Xu. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Bruce R. Hazelgrove III - $200K of NEU open-market activity on record
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Ting Xu?
Ting Xu is a corporate insider of NEWMARKET CORP (NEU). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Ting Xu submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Ting Xu been buying or selling stock?
Recorded transactions: 1 open-market purchase ($248K) and 0 open-market sales across all tracked filings.
Where can I see all of Ting Xu'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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