Justin B. Stiefel - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 3, 2026
Justin B. Stiefel has filed 1 SEC Form 4 filing across 1 company in the last 90 days - buying. Lifetime open-market purchases: $2.00M.
Profile
Justin B. Stiefel serves as CEO & Treasurer of IP STRATEGY HOLDINGS, INC. (IPST). Stiefel has reported 6 insider filings with the SEC since 2024. The most recent filing was in May 2026.
| Role | CEO & Treasurer, Director |
|---|---|
| Notability | 40/100 |
Board memberships
- IP STRATEGY HOLDINGS, INC.
Reported roles
- CEO & Treasurer
Trading Pattern
InsiderAlpha's records for Justin B. Stiefel go back to 2024: 6 primary Form 4 filings, an average of 2.0 per year. The typical open-market purchase is $2.00M (1 buy totaling $2.00M). The largest single buy on record is $2.00M of IPST in 2025. 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 Justin B. Stiefel 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.
- CEO & Treasurer, Director at IP STRATEGY HOLDINGS, INC. (IPST) - 4 filings, 2024 to 2026
- CEO Treasurer, Director at IP STRATEGY HOLDINGS, INC. (IPST) - 2 filings, 2025
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-05 | IPST | IP STRATEGY HOLDINGS, INC. | F - Tax withholding / forfeiture | 62 | $5.50 | $341 |
| 2026-05-05 | IPST | IP STRATEGY HOLDINGS, INC. | M - Option exercise | 208 | - | |
| 2026-05-05 | IPST | IP STRATEGY HOLDINGS, INC. | F - Tax withholding / forfeiture | 433 | $5.50 | $2K |
| 2026-05-05 | IPST | IP STRATEGY HOLDINGS, INC. | M - Option exercise | 1.5K | - | |
| 2026-05-01 | IPST | IP STRATEGY HOLDINGS, INC. | F - Tax withholding / forfeiture | 2.5K | $1.08 | $3K |
| 2026-05-01 | IPST | IP STRATEGY HOLDINGS, INC. | M - Option exercise | 8.3K | - | |
| 2026-05-01 | IPST | IP STRATEGY HOLDINGS, INC. | F - Tax withholding / forfeiture | 17.3K | $1.08 | $19K |
| 2026-05-01 | IPST | IP STRATEGY HOLDINGS, INC. | M - Option exercise | 58.3K | - | |
| 2026-02-04 | IPST | IP STRATEGY HOLDINGS, INC. | F - Tax withholding / forfeiture | 17.3K | $1.08 | $19K |
| 2026-02-04 | IPST | IP STRATEGY HOLDINGS, INC. | M - Option exercise | 58.3K | - | |
| 2025-09-18 | IPST | IP STRATEGY HOLDINGS, INC. | M - Option exercise | 3.31M | $0.00 | $331 |
| 2024-11-26 | IPST | IP STRATEGY HOLDINGS, INC. | M - Option exercise | 27.0K | $0.00 | |
| 2024-11-26 | IPST | IP STRATEGY HOLDINGS, INC. | M - Option exercise | 27.0K | $0.00 |
Companies - Last 90 Days
- IP STRATEGY HOLDINGS, INC. (IPST) - 1 filing, last 2026-05-05
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades at the companies Justin B. Stiefel has recently filed at. Multiple unrelated insiders buying the same stock within a short window - cluster buying - has historically been one of the strongest Form 4 signals.
- Andrew M. Varga - $181K of IPST open-market activity in the last 12 months
- Matthew J. Swann - $100K of IPST open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- Andrew T. Kaplan
- A. J. Kazimi
- Michael John Kazley
- Kennedy Lewis Investment Holdings II LLC
- KENNEDY LEWIS MANAGEMENT LP
- James M. Kilts
- Richard D. Kinder
- Steven B. Klinsky
Frequently Asked Questions
Who is Justin B. Stiefel?
Justin B. Stiefel serves as CEO & Treasurer of IP STRATEGY HOLDINGS, INC. (IPST). Stiefel has reported 6 insider filings with the SEC since 2024. The most recent filing was in May 2026.…
How many SEC Form 4 filings has Justin B. Stiefel submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Justin B. Stiefel been buying or selling stock?
Recorded transactions: 1 open-market purchase ($2.00M) and 0 open-market sales across all tracked filings.
Where can I see all of Justin B. Stiefel'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 Justin B. Stiefel profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.