John Christopher Sullivan
Executive VP · COSTCO WHOLESALE CORP /NEW
- 2024
- Oct 24, 2025
- 2
Summary
Latest filing:
John Christopher Sullivan is Executive VP of COSTCO WHOLESALE CORP /NEW (COST). 2 SEC Form 4 filings on record going back to 2024, most recently on 24 October 2025.
Recent transactions
12The latest 12 SEC Form 4 transactions reported by John Christopher Sullivan.
Trading pattern
InsiderAlpha's records for John Christopher Sullivan go back to 2024: 2 primary Form 4 filings, an average of 0.7 per year. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies John Christopher Sullivan 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.
- Claudine Adamo - $5.27M in COST purchases and sales in the last 12 months
- William Richard Wilcox - $3.29M in COST purchases and sales in the last 12 months
- Javier Polit - $2.26M in COST purchases and sales in the last 12 months
- Caton Frates - $1.43M in COST purchases and sales in the last 12 months
- James C. Klauer - $1.41M in COST purchases and sales in the last 12 months
- Russell D. Miller - $1.37M in COST purchases and sales in the last 12 months
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Frequently asked questions
Who is John Christopher Sullivan?
John Christopher Sullivan is a corporate insider, tracked as Executive VP of COSTCO WHOLESALE CORP /NEW (COST). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did John Christopher Sullivan last file a Form 4?
The most recent primary Form 4 on record is dated 24 October 2025, one of 2 filings going back to 2024.