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

Historic Insider Ownership Trends

NTIP's three largest insider shareholders as of March 23, 2026 are Corey M Horowitz (Ceo And Chairman, 3.98Mn shares), Steven D. Heinemann (TenPercentOwner, 1.72Mn shares), Niv Harizman (Director, 347.24K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Corey M Horowitz Ceo And Chairman 3,983,954 0 26 Mar, 2024
Steven D. Heinemann 0 1,722,058 29 Jul, 2021
Niv Harizman 347,235 0 03 Mar, 2026
Emanuel R Pearlman 143,309 0 26 Feb, 2024
Allison C Hoffman 135,759 0 03 Mar, 2026
Jonathan M Greene Executive Vp Secretary 126,119 0 09 Jan, 2026
David C Kahn Chief Financial Officer 116,053 0 30 Dec, 2021
Robert Michael Mahan Chief Financial Officer 50,000 0 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
27 Feb, 2026 Allison C Hoffman Common Stock, $.01 par value per share A 15,000 $0.00 135,759 D A
27 Feb, 2026 Niv Harizman Common Stock, $.01 par value per share A 15,000 $0.00 347,235 D A
18 Feb, 2026 Robert Michael Mahan Restricted Stock Units A 15,000 $0.00 50,000 D A
18 Feb, 2026 Jonathan M Greene Restricted Stock Units A 25,000 $0.00 37,500 D A
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
08 Jan, 2026 Jonathan M Greene Restricted Stock Units D 7,500 $0.00 12,500 D M
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
02 Jan, 2026 Jonathan M Greene Restricted Stock Units D 12,500 $0.00 20,000 D M
22 Sep, 2025 Robert Michael Mahan Restricted Stock Units D 35,000 $0.00 35,000 D A
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 Restricted Stock Units D 25,000 $0.00 0 D M
19 Feb, 2025 Niv Harizman Common Stock, $.01 par value per share A 15,000 $0.00 332,235 D A
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 Common Stock, $.01 par value per share D 2,674 $1.37 113,249 D F
24 Jan, 2025 Jonathan M Greene Restricted Stock Units D 7,500 $0.00 32,500 D M
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