WaveMan · Form 4
Rosenthal Brent D insider trades
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Rosenthal Brent D insider trades

Rosenthal Brent D has filed 30 Form 4s with the SEC that we hold, for Comscore, INC. (SCOR) (Director), Horizon Kinetics Holding Corp (HKHC) (Director), RIBT (Director) and Pitney Bowes INC /DE/ (PBI) (Director), among 5 companies in all. Across all of them we count 12 purchases worth $278.6K and 0 sales worth $0 reported on Form 4. In the last 12 months: 7 purchases ($167.4K) and 0 sales ($0). The largest single trade was a purchase of 2,000 shares of Horizon Kinetics Holding Corp worth $54.0K, dated 2026-08-24. The first filing on our record is dated 2021-07-01 and the latest 2026-08-25.

Comscore, INC. (SCOR)

Director · 8 filings · 1 purchase or sale
Trade dateCodeSharesValue as filedFiled
2021-08-11P, purchase reported on Form 415,000$48.8K2021-08-12

Horizon Kinetics Holding Corp (HKHC)

Director · 7 filings · 7 purchases and sales
Trade dateCodeSharesValue as filedFiled
2024-11-14P, purchase reported on Form 4300$11.4K2024-11-15
2024-11-19P, purchase reported on Form 4100$3.7K2024-11-20
2025-09-02P, purchase reported on Form 4300$11.4K2025-09-03
2025-11-25P, purchase reported on Form 4300$8.2K2025-11-26
2026-03-18P, purchase reported on Form 4750$24.8K2026-03-19
2026-05-20P, purchase reported on Form 4700$19.5K2026-05-21
2026-08-24P, purchase reported on Form 42,000$54.0K2026-08-25

RIBT

Director · 7 filings · 0 purchases and sales

No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.

Pitney Bowes INC /DE/ (PBI)

Director · 6 filings · 4 purchases and sales
Trade dateCodeSharesValue as filedFiled
2025-09-03P, purchase reported on Form 43,000$35.9K2025-09-05
2025-11-25P, purchase reported on Form 41,500$15.0K2025-11-25
2025-11-25P, purchase reported on Form 4500$5.0K2025-11-25
2026-03-13P, purchase reported on Form 44,000$40.9K2026-03-17

Syntec Optics Holdings, INC. (OPTX)

Director · 2 filings · 0 purchases and sales

No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.

Source

Counted from the Form 4 filings this reporting owner (SEC CIK 1443849) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.

Source: U.S. Securities and Exchange Commission (EDGAR) and other official government data · Updated 2026-10-12 · For informational purposes only, not investment advice.
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