INSIDER
DRIFT
Home
Latest Filings
All Sectors
Index List
Loading...
Industry - Patent Owners & Lessors
Officers
Directors
Officer & Directors
10 Percent
All
All Sectors
Finance, Insurance, Real Estate
Miscellaneous Investing
Include option trades
Include indirect trades
Latest data: 3/13/2026 10:27:05 PM
1 Month
Buy/Sell Ratio 0.00
0%
100%
Buy
Sell
--
($739,723)
0 Insiders
4 Insiders
0 Transactions
4 Transactions
2/13/2026 to 3/13/2026
3 Month
Buy/Sell Ratio 0.01
1%
99%
Buy
Sell
$206,708
($19.12) M
2 Insiders
10 Insiders
2 Transactions
24 Transactions
12/13/2025 to 3/13/2026
6 Month
Buy/Sell Ratio 0.01
0%
100%
Buy
Sell
$224,208
($23.08) M
2 Insiders
13 Insiders
3 Transactions
37 Transactions
9/13/2025 to 3/13/2026
12 Month
Buy/Sell Ratio 0.03
2%
98%
Buy
Sell
$901,050
($30.93) M
7 Insiders
19 Insiders
11 Transactions
59 Transactions
3/13/2025 to 3/13/2026
Monthly Buy and Sell Value
Monthly Buy/Sell Ratio
Most Insider Buying
12 months
Name
Value
Transactions
Grandpre Christopher M
Joint Corp
$367,591
3
D Loren Robert W
Xcel Brands, Inc.
$249,028
3
Deng Chiyuan
AI Era Corp.
$111,800
1
Disanto Mark
Xcel Brands, Inc.
$100,980
1
Soncini Jason W.
Acacia Research Corp
$26,523
1
Zambito Michael Sikoryak
Acacia Research Corp
$25,147
1
Mcnulty Martin D. Jr.
Acacia Research Corp
$19,981
1
Most Insider Selling
12 months
Name
Value
Transactions
Brezski Richard
Interdigital, Inc.
($9,623,258)
5
Chen Lawrence Liren
Interdigital, Inc.
($9,548,372)
9
Pankaj Rajesh
Interdigital, Inc.
($3,286,266)
12
Kritzmacher John A
Interdigital, Inc.
($1,862,157)
5
Couling John D
Dolby Laboratories, Inc.
($1,390,823)
4
Schmidt Joshua D.
Interdigital, Inc.
($1,130,631)
6
Hakoranta Eeva K.
Interdigital, Inc.
($1,046,029)
1
Revankar Shriram
Dolby Laboratories, Inc.
($919,510)
3
Rankin Jean F
Interdigital, Inc.
($734,623)
2
Markley John D. Jr.
Interdigital, Inc.
($568,758)
3
Most Unique Insiders Buying (>25K)
12 months
Name
Unique insiders
Total Trades
Xcel Brands, Inc.
2
3
Acacia Research Corp
2
2
Joint Corp
1
3
AI Era Corp.
1
1
Most Unique Insiders Selling (>25K)
12 months
Name
Unique insiders
Total Trades
Interdigital, Inc.
11
46
Dolby Laboratories, Inc.
4
9
Acacia Research Corp
1
1
Virnetx Holding Corp
1
1
Companies with activity
1 Month
6 Month
12 Month
Name
Ratio
Buy $
Sell $
Ratio
Buy $
Sell $
Ratio
Buy $
Sell $
Interdigital, Inc.
0.00
$0
($538,957)
0.00
$0
($21,061,259)
0.00
$0
($28,247,705)
Dolby Laboratories, Inc.
0.00
$0
($198,420)
0.00
$0
($1,959,146)
0.00
$0
($2,560,477)
Digital Turbine, Inc.
0.00
$0
($2,346)
0.00
$0
($2,346)
0.00
$0
($2,346)
AI Era Corp.
--
$0
$0
--
$111,800
$0
--
$111,800
$0
Xcel Brands, Inc.
--
$0
$0
--
$112,408
$0
--
$350,008
$0
Virnetx Holding Corp
--
$0
$0
0.00
$0
($55,618)
0.00
$0
($55,618)
Joint Corp
--
$0
$0
--
$0
$0
--
$367,591
$0
Acacia Research Corp
--
$0
$0
--
$0
$0
1.17
$71,651
($61,440)