Industry - Patent Owners & Lessors

Include option trades

Include indirect trades

Latest data: 9/9/2026 10:01:45 PM

1 Month

Buy/Sell Ratio 0.02

2%

98%

Buy	Sell
$33,980	($1.45) M
1 Insiders	7 Insiders
5 Transactions	13 Transactions

8/9/2026 to 9/9/2026

3 Month

Buy/Sell Ratio 0.01

0%

100%

Buy	Sell
$33,980	($3.52) M
1 Insiders	13 Insiders
5 Transactions	23 Transactions

6/9/2026 to 9/9/2026

6 Month

Buy/Sell Ratio 0.00

0%

100%

Buy	Sell
$33,980	($8.04) M
1 Insiders	18 Insiders
5 Transactions	32 Transactions

3/9/2026 to 9/9/2026

12 Month

Buy/Sell Ratio 0.01

0%

100%

Buy	Sell
$258,188	($31.12) M
2 Insiders	24 Insiders
8 Transactions	69 Transactions

9/9/2025 to 9/9/2026

Monthly Buy and Sell Value

Monthly Buy/Sell Ratio

Most Insider Buying

12 months

Name	Value	Transactions
D Loren Robert W Xcel Brands, Inc.	$146,388	7
Deng Chiyuan AI Era Corp.	$111,800	1

Most Insider Selling

12 months

Name	Value	Transactions
Chen Lawrence Liren Interdigital, Inc.	($9,548,372)	9
Brezski Richard Interdigital, Inc.	($6,799,300)	4
Pankaj Rajesh Interdigital, Inc.	($4,815,845)	13
Schmidt Joshua D. Interdigital, Inc.	($2,596,089)	4
Kritzmacher John A Interdigital, Inc.	($1,845,499)	5
Couling John D Dolby Laboratories, Inc.	($1,340,171)	3
Revankar Shriram Dolby Laboratories, Inc.	($747,900)	4
Pendleton Todd Dolby Laboratories, Inc.	($647,857)	1
Mattis Julia C Interdigital, Inc.	($412,240)	1
Markley John D. Jr. Interdigital, Inc.	($382,465)	2

Most Unique Insiders Buying (>25K)

12 months

Name	Unique insiders	Total Trades
AI Era Corp.	1	1
Xcel Brands, Inc.	1	1

Most Unique Insiders Selling (>25K)

12 months

Name	Unique insiders	Total Trades
Interdigital, Inc.	11	43
Dolby Laboratories, Inc.	7	13
Virnetx Holding Corp	2	6
Acacia Research Corp	2	4

Companies with activity

	1 Month			6 Month			12 Month
Name	Ratio	Buy $	Sell $	Ratio	Buy $	Sell $	Ratio	Buy $	Sell $
Interdigital, Inc.	0.00	$0	($507,000)	0.00	$0	($5,927,747)	0.00	$0	($26,989,006)
Dolby Laboratories, Inc.	0.00	$0	($348,983)	0.00	$0	($1,520,690)	0.00	$0	($3,479,835)
Acacia Research Corp	0.00	$0	($348,360)	0.00	$0	($348,360)	0.00	$0	($348,360)
Virnetx Holding Corp	0.00	$0	($246,634)	0.00	$0	($246,634)	0.00	$0	($302,252)
Xcel Brands, Inc.	--	$33,980	$0	--	$33,980	$0	--	$146,388	$0
Digital Turbine, Inc.	--	$0	$0	--	$0	$0	0.00	$0	($2,346)
AI Era Corp.	--	$0	$0	--	$0	$0	--	$111,800	$0