Summary
Updated Aug 30, 2026
William L. Bullock Jr. files SEC Form 4 reports at Kodiak Gas Services, Inc. (KGS). 4 SEC Form 4 filings on record going back to 2024, most recently on 11 May 2026.
Recent Transactions
5Every recent SEC Form 4 transaction William L. Bullock Jr. has reported, most recent first.
Trading Pattern
InsiderAlpha's records for William L. Bullock Jr. go back to 2024: 4 primary Form 4 filings, an average of 1.3 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.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies William L. Bullock Jr. 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.
- Frontier TopCo Partnership, L.P. - $1.01B of KGS open-market activity in the last 12 months
- Ryan Michael Lance - $125.83M of COP open-market activity in the last 12 months
- Andrew D. Lundquist - $5.41M of COP open-market activity in the last 12 months
- Timothy A. Leach - $4.75M of COP open-market activity in the last 12 months
- Nicholas G. Olds - $4.04M of COP open-market activity in the last 12 months
- Kelly Brunetti Rose - $4.02M of COP 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
Who is William L. Bullock Jr.?
William L. Bullock Jr. is a corporate insider of Kodiak Gas Services, Inc. (KGS). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did William L. Bullock Jr. last file a Form 4?
The most recent primary Form 4 on record is dated 11 May 2026, one of 4 filings going back to 2024.
Where can I see all of William L. Bullock Jr.'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.
Learn More
Follow William L. Bullock Jr. and every insider like them
A free account opens the full scored daily plan and every past day, a watchlist for any ticker, and 3 months of price history on every company page. No card.
Free plan available · Paid plans start with a 7-day free trial