Rosenthal Brent D made open market purchases of Pitney Bowes Inc. ($PBI) shares three times in the last year, totaling about $56 thousand, with the most recent buy on November 25, 2025. These rank 2,871st among individual insiders in our database. He also bought Horizon Kinetics Holding Corp. ($HKHC) shares twice for around $19,600, most recently on November 25, 2025, ranking 3,871st. Among 4,983 insiders averaging $1.46 million per buyer and 3.29 transactions, Rosenthal has no open market sales in the past year.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 18, 2026 | Horizon Kinetics Holding Corp | $HKHC | Rosenthal Brent D | Director | P | Common Stock | 750 | $33.05 | 1,750.0000 | 18,635,321 | 75.00% | 0.00% |
| March 13, 2026 | PITNEY BOWES INC /DE/ | $PBI | Rosenthal Brent D | Not found | P | Common Stock | 4000 | $10.23 | 9,000.0000 | 173,040,000 | 80.00% | 0.00% |
| Feb. 20, 2026 | SYNTEC OPTICS HOLDINGS, INC. | $OPTX | Rosenthal Brent D | Director | A | Restricted Stock Units | 24646 | $0.00 | 101,966.0000 | 36,920,226 | 31.88% | 0.07% |
| Nov. 25, 2025 | Horizon Kinetics Holding Corp | $HKHC | Rosenthal Brent D | Director | P | Common Stock | 300 | $27.28 | 1,000.0000 | 18,635,321 | 42.86% | 0.00% |
| Nov. 25, 2025 | PITNEY BOWES INC /DE/ | $PBI | Rosenthal Brent D | Not found | P | Common Stock | 500 | $10.01 | 3,500.0000 | 178,375,000 | 16.67% | 0.00% |
| Nov. 25, 2025 | PITNEY BOWES INC /DE/ | $PBI | Rosenthal Brent D | Not found | P | Common Stock | 1500 | $10.00 | 5,000.0000 | 178,375,000 | 42.86% | 0.00% |
| Oct. 6, 2025 | SYNTEC OPTICS HOLDINGS, INC. | $OPTX | Rosenthal Brent D | Director | A | Restricted Stock Units | 77320 | $0.00 | 77,320.0000 | 36,920,226 | 9999.99% | 0.21% |
| Sept. 3, 2025 | PITNEY BOWES INC /DE/ | $PBI | Rosenthal Brent D | Not found | P | Common Stock | 3000 | $11.97 | 3,000.0000 | 182,526,000 | 9999.99% | 0.00% |
| Sept. 2, 2025 | Horizon Kinetics Holding Corp | $HKHC | Rosenthal Brent D | Director | P | Common Stock | 300 | $38.00 | 700.0000 | 18,635,321 | 75.00% | 0.00% |
| June 18, 2025 | PITNEY BOWES INC /DE/ | $PBI | Rosenthal Brent D | Not found | A | Restricted Stock Unit | 8755 | $0.00 | 8,755.0000 | 182,526,000 | 9999.99% | 0.00% |
| Nov. 19, 2024 | Horizon Kinetics Holding Corp | $HKHC | Rosenthal Brent D | Director | P | Common Stock | 100 | $37.06 | 400.0000 | 0 | 33.33% | 0.00% |
| Nov. 14, 2024 | Horizon Kinetics Holding Corp | $HKHC | Rosenthal Brent D | Director | P | Common Stock | 300 | $38.06 | 300.0000 | 0 | 9999.99% | 0.00% |
| June 12, 2024 | COMSCORE, INC. | $SCOR | Rosenthal Brent D | Director | M | Restricted Stock Units | 8415 | $0.00 | 0.0000 | 4,811,233 | 100.00% | 0.17% |
| June 12, 2024 | COMSCORE, INC. | $SCOR | Rosenthal Brent D | Director | M | Common Stock | 8415 | $0.00 | 54,897.0000 | 4,811,233 | 18.10% | 0.17% |
| Dec. 31, 2023 | RiceBran Technologies | $RIBT | Rosenthal Brent David | Director | A | Deferred Stock Units | 58696 | $0.00 | 193,983.0000 | 6,384,934 | 43.39% | 0.92% |
| July 5, 2023 | COMSCORE, INC. | $SCOR | Rosenthal Brent David | Director | A | Restricted Stock Units | 168316 | $0.00 | 168,316.0000 | 4,634,178 | 9999.99% | 3.63% |
| June 15, 2023 | COMSCORE, INC. | $SCOR | Rosenthal Brent David | Director | M | Common Stock | 100000 | $0.00 | 929,699.0000 | 4,634,178 | 12.05% | 2.16% |
| June 15, 2023 | COMSCORE, INC. | $SCOR | Rosenthal Brent David | Director | M | Restricted Stock Units | 100000 | $0.00 | 0.0000 | 4,634,178 | 100.00% | 2.16% |