According to recent filings covering the 90 days ending February 19, 2026, the three most significant insider holders at Network-1 Technologies are Ceo And Chairman Corey M Horowitz (3.98Mn shares), TenPercentOwner Steven D. Heinemann (585.23K shares), Director Niv Harizman (332.24K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Corey M Horowitz | Ceo And Chairman | 3,983,954 | 26 Mar, 2024 |
| Steven D. Heinemann | 585,233 | 29 Jul, 2021 | |
| Niv Harizman | 332,235 | 21 Feb, 2025 | |
| Emanuel R Pearlman | 143,309 | 26 Feb, 2024 | |
| Jonathan M Greene | Executive Vp & Secretary | 126,119 | 09 Jan, 2026 |
| Allison C Hoffman | 120,561 | 21 Feb, 2025 | |
| David C Kahn | Chief Financial Officer | 116,053 | 30 Dec, 2021 |
| Robert Michael Mahan | Chief Financial Officer | 50,000 | 08 Sep, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 08 Jan, 2026 | Jonathan M Greene | Common Stock, $.01 par value per share | A | 7,500 | $0.00 | 128,793 | D | A |
| 08 Jan, 2026 | Jonathan M Greene | Common Stock, $.01 par value per share | D | 2,674 | $1.34 | 126,119 | D | F |
| 02 Jan, 2026 | Jonathan M Greene | Common Stock, $.01 par value per share | A | 12,500 | $0.00 | 125,749 | D | A |
| 02 Jan, 2026 | Jonathan M Greene | Common Stock, $.01 par value per share | D | 4,456 | $1.31 | 121,293 | D | F |
| 08 Sep, 2025 | Robert Michael Mahan | Common Stock, $.01 par value per share | A | 25,000 | $0.00 | 50,000 | D | A |
| 08 Sep, 2025 | Robert Michael Mahan | - | - | 50,000 | D | |||
| 19 Feb, 2025 | Niv Harizman | Common Stock, $.01 par value per share | A | 15,000 | $0.00 | 332,235 | D | A |
| 19 Feb, 2025 | Niv Harizman | - | - | 332,235 | D | |||
| 19 Feb, 2025 | Allison C Hoffman | Common Stock, $.01 par value per share | A | 15,000 | $0.00 | 120,561 | D | A |
| 24 Jan, 2025 | Jonathan M Greene | Common Stock, $.01 par value per share | A | 7,500 | $0.00 | 115,923 | D | A |
| 24 Jan, 2025 | Jonathan M Greene | - | - | 115,923 | D | |||
| 24 Jan, 2025 | Jonathan M Greene | Common Stock, $.01 par value per share | D | 2,674 | $1.37 | 113,249 | D | F |
| 08 Jan, 2025 | Jonathan M Greene | - | - | 108,423 | D | |||
| 08 Jan, 2025 | Jonathan M Greene | Common Stock, $.01 par value per share | A | 7,500 | $0.00 | 111,097 | D | A |
| 08 Jan, 2025 | Jonathan M Greene | Common Stock, $.01 par value per share | D | 2,674 | $1.43 | 108,423 | D | F |
| 08 Sep, 2024 | Robert Michael Mahan | Common Stock, $.01 par value per share | A | 25,000 | $0.00 | 25,000 | D | A |
| 08 Sep, 2024 | Robert Michael Mahan | - | - | 25,000 | D | |||
| 22 Mar, 2024 | Corey M Horowitz | Common Stock, $.01 par value per share | D | 23,505 | $2.09 | 3,983,954 | D | F |
| 22 Mar, 2024 | Corey M Horowitz | - | - | 4,007,459 | D | |||
| 22 Mar, 2024 | Corey M Horowitz | Common Stock, $.01 par value per share | A | 75,000 | $0.00 | 4,007,459 | D | M |