ALLEN JOHN K

Director at KADANT INC · on record since Jun 19, 2006
Chief Financial Officer at LEADIS TECHNOLOGY INC · on record since Apr 27, 2007
Chief Accounting Officer at RAMBUS INC · on record since Apr 3, 2026
Acting CFO at TESSERA TECHNOLOGIES INC · on record since Jun 27, 2013

Insider trading activity of ALLEN JOHN K

Transactions on record: 65; since Dec 29, 2003

Open-market buys: 0

Open-market sells: 16; $728.5K

Companies traded: 4; last filing Apr 7, 2026

Figures computed from official regulatory filings — .

Companies where ALLEN JOHN K has traded

RAMBUS INC9 tx · $354K · Apr 7, 2026
TESSERA TECHNOLOGIES INC4 tx · $74.9K · Dec 11, 2013
KADANT INC47 tx · $1M · Jul 7, 2010
LEADIS TECHNOLOGY INC5 tx · $33K · Dec 3, 2009

Track record of ALLEN JOHN K

Insufficient history for a statistical track record (fewer than 5 open-market buys).

Transaction history of ALLEN JOHN K

Co-insiders of ALLEN JOHN K

PICKETT CHRISTOPHER MRAMBUS INC +1
Ahn Sung TaeLEADIS TECHNOLOGY INC
ALBERTINE JOHN MKADANT INC
ALVAREZ ANTONIO RLEADIS TECHNOLOGY INC
Anthofer MichaelTESSERA TECHNOLOGIES INC
Arreola JoseLEADIS TECHNOLOGY INC
BENTLEY J THOMASRAMBUS INC
Bereziuk MichaelTESSERA TECHNOLOGIES INC
BLACK RONALD DRAMBUS INC
Blanchard Thomas AndrewKADANT INC
BOEHLKE ROBERT JTESSERA TECHNOLOGIES INC

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
RAMBUS INCListing on record	Apr 7, 2026	Other	-1,131	92.22 USD	$104.3K	Unusual size	SEC
RAMBUS INCListing on record	Apr 3, 2026	Other	-658	89.95 USD	$59.2K		SEC
RAMBUS INCListing on record	Apr 3, 2026	Other	-495	89.95 USD	$44.5K		SEC
RAMBUS INCListing on record	Apr 3, 2026	Award	2,779	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
RAMBUS INCListing on record	Apr 3, 2025	Other	-1,129	46.15 USD	$52.1K		SEC
RAMBUS INCListing on record	Apr 3, 2025	Other	-490	52.29 USD	$25.6K		SEC
RAMBUS INCListing on record	Apr 3, 2025	Award	5,168	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
RAMBUS INCListing on record	Apr 4, 2024	Other	-1,132	60.31 USD	$68.3K		SEC
RAMBUS INCListing on record	Apr 2, 2024	Award	3,882	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TESSERA TECHNOLOGIES INCListing unverified	Dec 11, 2013	Sell	-3,750	18.86 USD	$70.7K		SEC
TESSERA TECHNOLOGIES INCListing unverified	Oct 16, 2013	AwardD (derivative)	2,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TESSERA TECHNOLOGIES INCListing unverified	Oct 16, 2013	Award	3,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TESSERA TECHNOLOGIES INCListing unverified	Aug 2, 2013	Sell	-209	19.79 USD	$4.1K		SEC
KADANT INCListing on record	Jul 7, 2010	ExerciseD (derivative)	-1,250	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
KADANT INCListing on record	Jul 7, 2010	Exercise	1,250	—	n/a (No price was disclosed in the filing)		SEC
KADANT INCListing on record	Mar 8, 2010	AwardD (derivative)	5,000	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
KADANT INCListing on record	Mar 8, 2010	AwardD (derivative)	10,000	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
KADANT INCListing on record	Jan 5, 2010	Exercise	1,250	—	n/a (No price was disclosed in the filing)		SEC
KADANT INCListing on record	Jan 5, 2010	ExerciseD (derivative)	-1,250	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
LEADIS TECHNOLOGY INCListing unverified	Dec 3, 2009	Exercise	57,500	0.50	$28.8K		SEC
KADANT INCListing on record	Oct 5, 2009	Exercise	1,250	—	n/a (No price was disclosed in the filing)		SEC
KADANT INCListing on record	Oct 5, 2009	ExerciseD (derivative)	-1,250	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
KADANT INCListing on record	Jul 7, 2009	ExerciseD (derivative)	-1,250	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
KADANT INCListing on record	Jul 7, 2009	Exercise	1,250	—	n/a (No price was disclosed in the filing)		SEC
KADANT INCListing on record	Apr 7, 2009	ExerciseD (derivative)	-1,250	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
RAMBUS INCListing on record	Apr 7, 2026	Other	-1,131	92.22 USD	$104.3K	Unusual size	SEC
RAMBUS INCListing on record	Apr 3, 2026	Other	-658	89.95 USD	$59.2K		SEC
RAMBUS INCListing on record	Apr 3, 2026	Other	-495	89.95 USD	$44.5K		SEC
RAMBUS INCListing on record	Apr 3, 2026	Award	2,779	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
RAMBUS INCListing on record	Apr 3, 2025	Other	-1,129	46.15 USD	$52.1K		SEC
RAMBUS INCListing on record	Apr 3, 2025	Other	-490	52.29 USD	$25.6K		SEC
RAMBUS INCListing on record	Apr 3, 2025	Award	5,168	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
RAMBUS INCListing on record	Apr 4, 2024	Other	-1,132	60.31 USD	$68.3K		SEC
RAMBUS INCListing on record	Apr 2, 2024	Award	3,882	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TESSERA TECHNOLOGIES INCListing unverified	Dec 11, 2013	Sell	-3,750	18.86 USD	$70.7K		SEC
TESSERA TECHNOLOGIES INCListing unverified	Oct 16, 2013	AwardD (derivative)	2,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TESSERA TECHNOLOGIES INCListing unverified	Oct 16, 2013	Award	3,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TESSERA TECHNOLOGIES INCListing unverified	Aug 2, 2013	Sell	-209	19.79 USD	$4.1K		SEC
KADANT INCListing on record	Jul 7, 2010	ExerciseD (derivative)	-1,250	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
KADANT INCListing on record	Jul 7, 2010	Exercise	1,250	—	n/a (No price was disclosed in the filing)		SEC
KADANT INCListing on record	Mar 8, 2010	AwardD (derivative)	5,000	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
KADANT INCListing on record	Mar 8, 2010	AwardD (derivative)	10,000	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
KADANT INCListing on record	Jan 5, 2010	Exercise	1,250	—	n/a (No price was disclosed in the filing)		SEC
KADANT INCListing on record	Jan 5, 2010	ExerciseD (derivative)	-1,250	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
LEADIS TECHNOLOGY INCListing unverified	Dec 3, 2009	Exercise	57,500	0.50	$28.8K		SEC
KADANT INCListing on record	Oct 5, 2009	Exercise	1,250	—	n/a (No price was disclosed in the filing)		SEC
KADANT INCListing on record	Oct 5, 2009	ExerciseD (derivative)	-1,250	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
KADANT INCListing on record	Jul 7, 2009	ExerciseD (derivative)	-1,250	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
KADANT INCListing on record	Jul 7, 2009	Exercise	1,250	—	n/a (No price was disclosed in the filing)		SEC
KADANT INCListing on record	Apr 7, 2009	ExerciseD (derivative)	-1,250	0.00	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC