Insider · SEC Form 4 filer

Brent Rosenthal

Past buys: 3 of 3 beat

Companies

Where they file as an insider

Horizon Kinetics Holding (HKHC) Director Latest filing Aug 24, 2026
Pitney Bowes (PBI) Director Latest filing Jun 18, 2026
Comscore (SCOR) Director Latest filing Jun 12, 2024

Track record

Did their buys beat the typical stock?

Open-market buys11
Quarters checked 6 months later3
Beat the typical stock 3 of 3
Quarters too new to check2

3 of 3 checked quarters beat the typical stock. A past record is data, not a forecast.

Horizon Kinetics Holding (HKHC) Bought Aug 24, 2026 · $54K · 2,000 shares Too new Too new. Its 6-month check uses prices as of Mar 31, 2027.
Horizon Kinetics Holding (HKHC) Bought May 20, 2026 · $19.5K · 700 shares Too new Too new. Its 6-month check uses prices as of Dec 31, 2026.
Horizon Kinetics Holding (HKHC) Bought Mar 18, 2026 · $24.8K · 750 shares Not counted Not counted. We have no fund price for this stock on both Mar 31, 2026 and Sep 30, 2026.
Pitney Bowes (PBI) Bought Mar 13, 2026 · $40.9K · 4,000 shares Beat typical Mar 31, 2026 $11.05 → Sep 30, 2026 $16.32 · +47.7% (typical stock +1.7%)
Horizon Kinetics Holding (HKHC) Bought Nov 25, 2025 · $8.18K · 300 shares Not counted Not counted. We have no fund price for this stock on both Dec 31, 2025 and Jun 30, 2026.
Pitney Bowes (PBI) Bought Nov 25, 2025 · $20K · 2,000 shares Beat typical Dec 31, 2025 $10.57 → Jun 30, 2026 $17.52 · +65.8% (typical stock +4.7%)
Pitney Bowes (PBI) Bought Sep 3, 2025 · $35.9K · 3,000 shares Beat typical Sep 30, 2025 $11.41 → Mar 31, 2026 $11.05 · −3.2% (typical stock −3.4%)
Horizon Kinetics Holding (HKHC) Bought Sep 2, 2025 · $11.4K · 300 shares Not counted Not counted. We have no fund price for this stock on both Sep 30, 2025 and Mar 31, 2026.
Horizon Kinetics Holding (HKHC) Bought Nov 14–19, 2024 · $15.1K · 400 shares Not counted Not counted. We have no fund price for this stock on both Dec 31, 2024 and Jun 30, 2025.

Each row is one stock in one quarter, however many buys it took. We take the stock's price at the end of that quarter and again 6 months later, and compare it with the typical stock over the same dates. Prices are quarter-end values from funds' 13F reports (the middle value across 3 or more funds), through Sep 30, 2026. Moves past 3 times up or down, mostly stock splits, are left out. How we tested this.

Past results. This is data, not advice.

Where this data comes from. Insider trades, fund holdings, activist stakes and company results come from public SEC EDGAR filings (Forms 4, 13F, 13D/13G, 10-Q and 8-K). Congress trades come from the STOCK Act reports members file with the House Clerk and the Senate. Daily closing prices come from post-no-preference/stocks on DoltHub, a community-run database shared under CC BY-SA 4.0; the prices we show stay under that license. They are each day's close, not live or official exchange prices.

This is data, not investment advice. About StockToast · Your watchlist