Summary
Updated Aug 30, 2026
John Kinzer is Interim Chief Financial Officer of OneStream, Inc. (OS). 3 SEC Form 4 filings on record going back to 2025, most recently on 2 April 2026. Most recent open-market trade: sold $600K of OS on 18 September 2025. Lifetime open-market sales: $600K.
Recent Transactions
6Every recent SEC Form 4 transaction John Kinzer has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies John Kinzer 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.
- Ken Hohenstein - $7.90M of OS open-market activity in the last 12 months
- Jonathan D. Mariner - $573K of OS open-market activity in the last 12 months
- William A. Koefoed - $340K of OS open-market activity in the last 12 months
- Pamela McIntyre - $201K of OS open-market activity in the last 12 months
- Scott Leshinski - $176K of OS 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 John Kinzer?
John Kinzer is a corporate insider, tracked as Interim Chief Financial Officer of OneStream, Inc. (OS). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did John Kinzer last file a Form 4?
The most recent primary Form 4 on record is dated 2 April 2026, one of 3 filings going back to 2025.
Has John Kinzer been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($600K) across all tracked filings.
Where can I see all of John Kinzer'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 John Kinzer 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
