Network-1 Technologies, Inc. (NTIP) Insider Ownership

Historic Insider Ownership Trends

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).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
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