Updated Jul 16, 2026
Rosenthal Brent D has filed 3 SEC Form 4 filings across 2 companies in the last 90 days — buying. Lifetime open-market purchases: $148K. Historical track record: 1/5 stars across 6 tracked purchases.

| Role | Insider |
|---|---|
| Notability | 20/100 |
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realised performance after each tracked open-market purchase.
| InsiderAlpha rating | ★☆☆☆☆ (1/5) |
|---|---|
| Total purchases tracked | 6 |
| Purchases with forward-return data | 6 |
| 30-day win rate | 3333% |
| 90-day win rate | 5000% |
| Avg 5-day return | +82.13% |
| Avg 30-day return | -346.41% |
| Avg 90-day return | +64.41% |
| Best 30-day return | +1410.26% |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-22 | PBI | PITNEY BOWES INC /DE/ | M — Option exercise | 8.8K | $0.00 | |
| 2026-05-21 | HKHC | Horizon Kinetics Holding Corp | P — Open-market purchase | 700 | $27.85 | $19K |
| 2026-03-19 | HKHC | Horizon Kinetics Holding Corp | P — Open-market purchase | 750 | $33.05 | $25K |
| 2026-03-17 | PBI | PITNEY BOWES INC /DE/ | P — Open-market purchase | 4.0K | $10.22 | $41K |
| 2025-09-03 | PBI | PITNEY BOWES INC /DE/ | P — Open-market purchase | 3.0K | $11.97 | $36K |
| 2025-09-02 | HKHC | Horizon Kinetics Holding Corp | P — Open-market purchase | 300 | $38.00 | $11K |
| 2024-11-20 | HKHC | Horizon Kinetics Holding Corp | P — Open-market purchase | 100 | $37.06 | $4K |
| 2024-11-15 | HKHC | Horizon Kinetics Holding Corp | P — Open-market purchase | 300 | $38.06 | $11K |
Rosenthal Brent D is a corporate insider — currently tracked as Insider of PITNEY BOWES INC /DE/ (PBI). InsiderAlpha tracks every SEC Form 4 filing in real time.
3 primary Form 4 filings in the last 90 days, covering 2 companies.
Recorded transactions: 7 open-market purchases ($148K) and 0 open-market sales () across all tracked filings.
Across 6 tracked purchases, Rosenthal Brent D averaged -346.4% avg 30-day return with a 3333% 30-day win rate. InsiderAlpha rates the track record at 1/5 stars.
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.
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