Krzysztof W. Jamroz - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 3, 2026
Krzysztof W. Jamroz is a corporate insider tracked by InsiderAlpha. No SEC Form 4 filings recorded in the last 90 days. Lifetime open-market purchases: $535K.
Profile
Krzysztof W. Jamroz is a corporate insider at Global Crossing Airlines Group Inc. (JETMF). Jamroz has reported 4 insider filings with the SEC since 2024. The most recent filing was in November 2025.
| Role | Insider |
|---|---|
| Notability | 20/100 |
Board memberships
- Global Crossing Airlines Group Inc.
Trading Pattern
InsiderAlpha's records for Krzysztof W. Jamroz go back to 2024: 2 primary Form 4 filings, an average of 0.7 per year. The typical open-market purchase is $267K (2 buys totaling $535K). The largest single buy on record is $357K of JETMF in 2024. 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.
Career & Filing History
Every role Krzysztof W. Jamroz has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- Insider at Global Crossing Airlines Group Inc. (JETMF) - 2 filings, 2024 to 2025
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2025-11-18 | JETMF | Global Crossing Airlines Group Inc. | M - Option exercise | 141.8K | $0.71 | $101K |
| 2025-11-18 | JETMF | Global Crossing Airlines Group Inc. | M - Option exercise | 256.3K | $0.71 | $182K |
| 2024-12-31 | JETMF | Global Crossing Airlines Group Inc. | P - Open-market purchase | 386.7K | $0.46 | $178K |
| 2024-12-31 | JETMF | Global Crossing Airlines Group Inc. | P - Open-market purchase | 775.8K | $0.46 | $357K |
Most Active Insiders Right Now
Krzysztof W. Jamroz has no recent co-filers at the same companies, so here are the insiders with the largest open-market activity across the market in the last 90 days.
- MetLife Investment Management, LLC - $1600000.00B of FINS open-market activity in the last 90 days
- Magnetar Financial LLC - $16357.48B of CRWV open-market activity in the last 90 days
- Marianne Okland - $18.46B of STNG open-market activity in the last 90 days
- VisionWave Holdings, Inc. - $14.13B of SVRE open-market activity in the last 90 days
- Vanessa Allen Sutherland - $7.44B of PSX open-market activity in the last 90 days
- AI Alpine (Luxembourg) S.a.r.l. - $2.69B of INIO open-market activity in the last 90 days
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- L1 Capital Pty Ltd
- LAZARUS ENERGY HOLDINGS, LLC
- Sang Young Lee
- Sam Levinson
- Paul S. Levy
- Liberty 77 Capital L.P.
- LIBERTY MUTUAL HOLDING CO
- Alfred Lin
Frequently Asked Questions
Who is Krzysztof W. Jamroz?
Krzysztof W. Jamroz is a corporate insider at Global Crossing Airlines Group Inc. (JETMF). Jamroz has reported 4 insider filings with the SEC since 2024. The most recent filing was in November 2025.…
Has Krzysztof W. Jamroz been buying or selling stock?
Recorded transactions: 2 open-market purchases ($535K) and 0 open-market sales across all tracked filings.
Where can I see all of Krzysztof W. Jamroz'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
Open the live Krzysztof W. Jamroz profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.