FICHTHORN JOHN

See Explanation of Responses at SILICON STORAGE TECHNOLOGY INC · on record since Jan 13, 2010
10% owner at LEADIS TECHNOLOGY INC · on record since Oct 28, 2008
Director at CALIFORNIA MICRO DEVICES CORP · on record since Sep 25, 2009
Director at IMMERSION CORP · on record since Jun 13, 2011
10% owner at SRS LABS INC · on record since Apr 4, 2012
Director at QUANTUM CORP /DE/ · on record since Jun 8, 2026
10% owner at QUANTUM CORP /DE/ · on record since Jun 8, 2026
Director at Health Insurance Innovations, Inc. · on record since Dec 22, 2017
Director at INTEGRATED SURGICAL SYSTEMS INC · on record since Mar 20, 2019
10% owner at Ranger Energy Services, Inc. · on record since May 3, 2022
10% owner at SONUS PHARMACEUTICALS INC · on record since Nov 21, 2022

Insider trading activity of FICHTHORN JOHN

Transactions on record: 177; since Sep 25, 2009

Open-market buys: 44; $6.6M

Open-market sells: 91; $34.9M

Companies traded: 7; last filing Jun 8, 2026

Figures computed from official regulatory filings — methodology.

Companies where FICHTHORN JOHN has traded

QUANTUM CORP /DE/17 tx · $78.7M · Jun 8, 2026
INTEGRATED SURGICAL SYSTEMS INC16 tx · $105.7K · Feb 17, 2021
Health Insurance Innovations, Inc.11 tx · $9.8M · Aug 25, 2020
IMMERSION CORP87 tx · $18.1M · Mar 14, 2014
CALIFORNIA MICRO DEVICES CORP6 tx · $23.5K · Jan 29, 2010
SILICON STORAGE TECHNOLOGY INC20 tx · $1.5M · Jan 13, 2010
LEADIS TECHNOLOGY INC20 tx · $10.6M · Nov 19, 2009

Track record of FICHTHORN JOHN

Statistical track record

Free

Open-market buys: 45

Last buy: Aug 12, 2021

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Transaction history of FICHTHORN JOHN

Co-insiders of FICHTHORN JOHN

This page republishes public regulatory disclosures. Concerned by this data? Exercise your right to object →

Company	Filed	Type	Qty	Price	Value · USD	Src
QUANTUM CORP /DE/	Jun 8, 2026	Award	3,083,975	5.19 USD	$16M	SEC
QUANTUM CORP /DE/	Jun 8, 2026	OtherD	105,911	—	—	SEC
QUANTUM CORP /DE/	Jun 8, 2026	Other	11,020,645	5.19 USD	$57.2M	SEC
QUANTUM CORP /DE/	Jun 8, 2026	OtherD	-57,241,228	—	—	SEC
QUANTUM CORP /DE/	Jan 5, 2026	Award	12,000	0.00 USD	$0	SEC
QUANTUM CORP /DE/	Dec 29, 2025	OtherD	0	—	—	SEC
QUANTUM CORP /DE/	Dec 29, 2025	OtherD	2,653,308	—	—	SEC
QUANTUM CORP /DE/	May 5, 2025	Award	4,405	0.00 USD	$0	SEC
QUANTUM CORP /DE/	Aug 17, 2021	Buy	10,000	5.73 USD	$57.3K	SEC
QUANTUM CORP /DE/	Aug 16, 2021	Buy	10,000	5.73 USD	$57.3K	SEC
QUANTUM CORP /DE/	Aug 16, 2021	Buy	20,000	5.67 USD	$113.4K	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 17, 2021	AwardD	750,000	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 17, 2021	Award	125,000	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 17, 2021	Award	59,525	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 17, 2021	AwardD	0	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 17, 2021	Award	208,333	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 17, 2021	Other	320,395	0.33 USD	$105.7K	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 17, 2021	AwardD	967,280	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 17, 2021	Award	166,667	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 17, 2021	OtherD	0	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 2, 2021	AwardD	967,280	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 2, 2021	Award	125,000	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 2, 2021	Award	208,333	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 2, 2021	AwardD	750,000	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 2, 2021	Award	166,667	0.00 USD	$0	SEC

Company	Filed	Type	Qty	Price	Value · USD	Src
QUANTUM CORP /DE/	Jun 8, 2026	Award	3,083,975	5.19 USD	$16M	SEC
QUANTUM CORP /DE/	Jun 8, 2026	OtherD	105,911	—	—	SEC
QUANTUM CORP /DE/	Jun 8, 2026	Other	11,020,645	5.19 USD	$57.2M	SEC
QUANTUM CORP /DE/	Jun 8, 2026	OtherD	-57,241,228	—	—	SEC
QUANTUM CORP /DE/	Jan 5, 2026	Award	12,000	0.00 USD	$0	SEC
QUANTUM CORP /DE/	Dec 29, 2025	OtherD	0	—	—	SEC
QUANTUM CORP /DE/	Dec 29, 2025	OtherD	2,653,308	—	—	SEC
QUANTUM CORP /DE/	May 5, 2025	Award	4,405	0.00 USD	$0	SEC
QUANTUM CORP /DE/	Aug 17, 2021	Buy	10,000	5.73 USD	$57.3K	SEC
QUANTUM CORP /DE/	Aug 16, 2021	Buy	10,000	5.73 USD	$57.3K	SEC
QUANTUM CORP /DE/	Aug 16, 2021	Buy	20,000	5.67 USD	$113.4K	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 17, 2021	AwardD	750,000	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 17, 2021	Award	125,000	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 17, 2021	Award	59,525	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 17, 2021	AwardD	0	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 17, 2021	Award	208,333	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 17, 2021	Other	320,395	0.33 USD	$105.7K	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 17, 2021	AwardD	967,280	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 17, 2021	Award	166,667	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 17, 2021	OtherD	0	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 2, 2021	AwardD	967,280	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 2, 2021	Award	125,000	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 2, 2021	Award	208,333	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 2, 2021	AwardD	750,000	0.00 USD	$0	SEC
INTEGRATED SURGICAL SYSTEMS INC	Feb 2, 2021	Award	166,667	0.00 USD	$0	SEC