Insider Transactions Reported by 8 Insiders of NETWORK-1 TECHNOLOGIES, INC.

Symbol: NTIP on NYSE
Location: New Canaan, CT

Quick Takeaways

NTIP - NETWORK-1 TECHNOLOGIES, INC. has 8 insiders with reported activity on this page.
No net insider buy/sell flow is currently reported for the last year.
Recent transaction rows are available for direct filing-level review.

What Changed

No meaningful buy/sell imbalance is currently visible in the one-year window.
Activity will update as new Forms 3/4/5 are filed.

Why This Matters

This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.

Official SEC Source

Filed on Form 4

Issuer insider activity is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Insider trading overview

Last 12 months

Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 14 Apr 2025.

Buys

Shares: 0

Insiders: 0

Sells

Shares: 0

Insiders: 0

Net

Shares: 0

Insiders: 0

Window (months)	Buy $	Sell $	Net $
0-3	$0	$0	$0
3-6	$0	$0	$0
6-9	$0	$0	$0
9-12	$0	$0	$0

NETWORK-1 TECHNOLOGIES, INC. executives and other stock owners filed with the SEC include:

Name	Relationship	Holdings Value	Valuation	Report Date
Corey M. Horowitz	CEO and Chairman, Director, 10%+ Owner	$15,734,183	Mixed	22 Mar 2024
Steven D. Heinemann	10%+ Owner	$8,294,019	Mixed	27 Jul 2021
Niv Harizman	Director	$440,988	Mixed	27 Feb 2026
Emanuel R. Pearlman	Director	$310,981	Mixed	23 Feb 2024
David C. Kahn	Chief Financial Officer, Director	$262,994	Mixed	29 Dec 2021
Jonathan M. Greene	Executive VP & Secretary, Director	$215,474	Mixed	18 Feb 2026
Allison C. Hoffman	Director	$172,413	Mixed	27 Feb 2026
Robert Michael Mahan	Chief Financial Officer	$159,868	Mixed	18 Feb 2026

Top shareholders of NETWORK-1 TECHNOLOGIES, INC. (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
Corey M. Horowitz	3/4/5	CEO and Chairman, Director, 10%+ Owner	— mixed-class rows	7,222,337 mixed-class rows	$15,734,183	—	22 Mar 2024	3/4/5
Steven D. Heinemann	3/4/5 13D/G	10%+ Owner	5.9% from 13D/G	2,307,291	$8,294,019	—	27 Jul 2021	3/4/5 13D/G
CANNELL CAPITAL LLC	13D/G 13F	Company	5%	1,141,975	$1,507,407	$0	31 Dec 2025	13D/G 13F
Clayton Partners LLC	13D/G 13F	Company	4.5%	1,018,627	$1,344,588	-$256,777	31 Dec 2025	13D/G 13F
VANGUARD GROUP INC	13F	Company	2.6%	585,401	$766,876	—	31 Dec 2025	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	2%	467,844	$612,876	—	31 Dec 2025	13F
Niv Harizman	3/4/5	Director	1.5%	347,235	$440,988	—	27 Feb 2026	3/4/5
SAYBROOK CAPITAL /NC	13F	Company	1.4%	330,043	$432,356	—	31 Dec 2025	13F
PNC FINANCIAL SERVICES GROUP, INC.	13F	Company	1.2%	270,000	$353,700	—	31 Dec 2025	13F
Emanuel R. Pearlman	3/4/5	Director	— class O/S missing	143,309	$310,981	—	23 Feb 2024	3/4/5
DIMENSIONAL FUND ADVISORS LP	13F	Company	1%	236,037	$309,208	—	31 Dec 2025	13F
David C. Kahn	3/4/5	Chief Financial Officer, Director	— mixed-class rows	119,803 mixed-class rows	$262,994	—	29 Dec 2021	3/4/5
Jonathan M. Greene	3/4/5	Executive VP & Secretary, Director	— mixed-class rows	163,619 mixed-class rows	$215,474	—	18 Feb 2026	3/4/5
Allison C. Hoffman	3/4/5	Director	0.59%	135,759	$172,413	—	27 Feb 2026	3/4/5
BRIDGEWAY CAPITAL MANAGEMENT, LLC	13F	Company	0.57%	129,161	$169,201	—	31 Dec 2025	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.56%	128,390	$168,241	—	31 Dec 2025	13F
Robert Michael Mahan	3/4/5	Chief Financial Officer	— mixed-class rows	100,000 mixed-class rows	$159,868	—	18 Feb 2026	3/4/5
Empowered Funds, LLC	13F	Company	0.43%	97,572	$127,819	—	31 Dec 2025	13F
Canton Hathaway, LLC	13F	Company	0.3%	68,291	$89,461	—	31 Dec 2025	13F
STATE STREET CORP	13F	Company	0.2%	46,299	$60,652	—	31 Dec 2025	13F
NORTHERN TRUST CORP	13F	Company	0.18%	39,982	$52,376	—	31 Dec 2025	13F
Calydon Capital	13F	Company	0.16%	36,204	$47,427	—	31 Dec 2025	13F
CITADEL ADVISORS LLC	13F	Company	0.14%	32,287	$42,296	—	31 Dec 2025	13F
Savvy Advisors, Inc.	13F	Company	0.07%	16,000	$20,960	—	31 Dec 2025	13F
NATIONAL BANK OF CANADA /FI/	13F	Company	0.02%	4,000	$5,200	—	31 Dec 2025	13F
Tower Research Capital LLC (TRC)	13F	Company	0.01%	2,744	$3,595	—	31 Dec 2025	13F
ROYAL BANK OF CANADA	13F	Company	0%	786	$1,000	—	31 Dec 2025	13F
OSAIC HOLDINGS, INC.	13F	Company	0%	642	$841	—	31 Dec 2025	13F
BANK OF AMERICA CORP /DE/	13F	Company	0%	173	$226	—	31 Dec 2025	13F
MAI Capital Management	13F	Company	0%	102	$134	—	31 Dec 2025	13F
SBI Securities Co., Ltd.	13F	Company	0%	4	$5	—	31 Dec 2025	13F
MORGAN STANLEY	13F	Company	0%	2	$3	—	31 Dec 2025	13F
UBS Group AG	13F	Company	0%	1	$1	—	31 Dec 2025	13F

Recent Insider Transactions by Companies or Individuals for NETWORK-1 TECHNOLOGIES, INC.

Showing up to 300 most recent insider transactions from the last 12 months.

Insider	Symbol	Class	Transaction	%	Shares	Shares Owned	Date	Ownership
Niv Harizman	NTIP-	Common Stock, $.01 par value per share	Award	4.51%	15,000	347,235	27 Feb 2026	Direct
Allison C. Hoffman	NTIP-	Common Stock, $.01 par value per share	Award	12.4%	15,000	135,759	27 Feb 2026	Direct
Robert Michael Mahan	NTIP-	Restricted Stock Units	Award	42.9%	15,000	50,000	18 Feb 2026	Direct
Jonathan M. Greene	NTIP-	Restricted Stock Units	Award	200%	25,000	37,500	18 Feb 2026	Direct
Jonathan M. Greene	NTIP	Common Stock, $.01 par value per share	Tax liability	-2.08%	-2,674	126,119	08 Jan 2026	Direct
Jonathan M. Greene	NTIP	Common Stock, $.01 par value per share	Award	6.18%	7,500	128,793	08 Jan 2026	Direct
Jonathan M. Greene	NTIP	Restricted Stock Units	Options Exercise	-37.5%	-7,500	12,500	08 Jan 2026	Direct
Jonathan M. Greene	NTIP	Common Stock, $.01 par value per share	Tax liability	-3.54%	-4,456	121,293	02 Jan 2026	Direct
Jonathan M. Greene	NTIP	Common Stock, $.01 par value per share	Award	11%	12,500	125,749	02 Jan 2026	Direct
Jonathan M. Greene	NTIP	Restricted Stock Units	Options Exercise	-38.5%	-12,500	20,000	02 Jan 2026	Direct
Robert Michael Mahan	NTIP	Restricted Stock Units	Award	-50%	-35,000	35,000	22 Sep 2025	Direct
Robert Michael Mahan	NTIP	Common Stock, $.01 par value per share	Award	100%	25,000	50,000	08 Sep 2025	Direct
Robert Michael Mahan	NTIP	Restricted Stock Units	Options Exercise	-100%	-25,000	0	08 Sep 2025	Direct

* An asterisk sign (*) next to the price indicates that the price is likely invalid.