CHOOKASZIAN DENNIS

Director at CME GROUP INC. · on record since Feb 21, 2006
Director at Prism Technologies Group, Inc. · on record since Apr 24, 2006
Director at PERDOCEO EDUCATION Corp · on record since May 22, 2006
Director at SAPIENT CORP · on record since Jun 5, 2006
Director at LoopNet, Inc. · on record since Jul 27, 2006
Director at Veradigm Inc. · on record since Sep 24, 2010
Director at Maxar Technologies Inc. · on record since Jan 10, 2019
Director at PILLARSTONE CAPITAL REIT · on record since Apr 2, 2019
10% owner at PILLARSTONE CAPITAL REIT · on record since Apr 1, 2019

Insider trading activity of CHOOKASZIAN DENNIS

Transactions on record: 161; since Mar 17, 2004

Open-market buys: 17; $1.2M

Open-market sells: 0

Companies traded: 7; last filing May 26, 2026

Figures computed from official regulatory filings — .

Companies where CHOOKASZIAN DENNIS has traded

PERDOCEO EDUCATION Corp46 tx · $1.4M · May 26, 2026
CME GROUP INC.27 tx · $265.3K · Jun 29, 2022
PILLARSTONE CAPITAL REIT6 tx · $845.2M · Dec 17, 2021
Prism Technologies Group, Inc.61 tx · $2.6M · Feb 9, 2017
Veradigm Inc.8 tx · $625.5K · Jun 1, 2015
LoopNet, Inc.10 tx · Apr 30, 2012
3 tx · $100.1K · Jun 5, 2006

Track record of CHOOKASZIAN DENNIS

Statistical track record

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Open-market buys: 19

Last buy: Mar 29, 2019

Win rates, median returns and the proven-insider analysis come with a free account.

Transaction history of CHOOKASZIAN DENNIS

Co-insiders of CHOOKASZIAN DENNIS

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
PERDOCEO EDUCATION CorpListing on record	May 26, 2026	Award	3,987	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PERDOCEO EDUCATION CorpListing on record	Mar 13, 2026	ExerciseD (derivative)	-21,129	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PERDOCEO EDUCATION CorpListing on record	Mar 13, 2026	Exercise	21,129	5.96 USD	$125.9K		SEC
PERDOCEO EDUCATION CorpListing on record	May 27, 2025	Award	5,155	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PERDOCEO EDUCATION CorpListing on record	Mar 10, 2025	Exercise	26,664	3.93 USD	$104.8K		SEC
PERDOCEO EDUCATION CorpListing on record	Mar 10, 2025	ExerciseD (derivative)	-26,664	3.93 USD	$104.8K		SEC
PERDOCEO EDUCATION CorpListing on record	May 24, 2024	Award	6,256	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PERDOCEO EDUCATION CorpListing on record	May 26, 2023	Award	7,827	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PERDOCEO EDUCATION CorpListing on record	Mar 16, 2023	Exercise	16,000	2.82 USD	$45.1K		SEC
PERDOCEO EDUCATION CorpListing on record	Mar 16, 2023	ExerciseD (derivative)	-16,000	2.82 USD	$45.1K		SEC
CME GROUP INC.Listing on record	Jun 29, 2022	Award	693	209.44 USD	$145.1K	Unusual size	SEC
PERDOCEO EDUCATION CorpListing on record	May 31, 2022	Award	9,050	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PERDOCEO EDUCATION CorpListing on record	Mar 8, 2022	ExerciseD (derivative)	-16,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PERDOCEO EDUCATION CorpListing on record	Mar 8, 2022	Exercise	16,000	6.51 USD	$104.2K		SEC
CME GROUP INC.Listing on record	Jan 26, 2022	Award	47	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PILLARSTONE CAPITAL REITListing unverified	Dec 17, 2021	Award	22,900	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
CME GROUP INC.Listing on record	Jun 29, 2021	Award	551	218.12 USD	$120.2K	Unusual size	SEC
PERDOCEO EDUCATION CorpListing on record	Jun 4, 2021	Award	8,348	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PILLARSTONE CAPITAL REITListing unverified	Dec 17, 2020	Award	26,086	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PILLARSTONE CAPITAL REITListing unverified	Aug 12, 2020	Award	66,666	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
CME GROUP INC.Listing on record	Jun 29, 2020	Award	712	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PERDOCEO EDUCATION CorpListing on record	May 29, 2020	Award	7,535	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PERDOCEO EDUCATION CorpListing on record	Aug 14, 2019	AwardD (derivative)	5,994	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
CME GROUP INC.Listing on record	Jun 27, 2019	Award	606	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PILLARSTONE CAPITAL REITListing unverified	Apr 1, 2019	Buy	1,999	2.80 USD	$5.6K	conv 32First in 12mo	SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
PERDOCEO EDUCATION CorpListing on record	May 26, 2026	Award	3,987	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PERDOCEO EDUCATION CorpListing on record	Mar 13, 2026	ExerciseD (derivative)	-21,129	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PERDOCEO EDUCATION CorpListing on record	Mar 13, 2026	Exercise	21,129	5.96 USD	$125.9K		SEC
PERDOCEO EDUCATION CorpListing on record	May 27, 2025	Award	5,155	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PERDOCEO EDUCATION CorpListing on record	Mar 10, 2025	Exercise	26,664	3.93 USD	$104.8K		SEC
PERDOCEO EDUCATION CorpListing on record	Mar 10, 2025	ExerciseD (derivative)	-26,664	3.93 USD	$104.8K		SEC
PERDOCEO EDUCATION CorpListing on record	May 24, 2024	Award	6,256	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PERDOCEO EDUCATION CorpListing on record	May 26, 2023	Award	7,827	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PERDOCEO EDUCATION CorpListing on record	Mar 16, 2023	Exercise	16,000	2.82 USD	$45.1K		SEC
PERDOCEO EDUCATION CorpListing on record	Mar 16, 2023	ExerciseD (derivative)	-16,000	2.82 USD	$45.1K		SEC
CME GROUP INC.Listing on record	Jun 29, 2022	Award	693	209.44 USD	$145.1K	Unusual size	SEC
PERDOCEO EDUCATION CorpListing on record	May 31, 2022	Award	9,050	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PERDOCEO EDUCATION CorpListing on record	Mar 8, 2022	ExerciseD (derivative)	-16,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PERDOCEO EDUCATION CorpListing on record	Mar 8, 2022	Exercise	16,000	6.51 USD	$104.2K		SEC
CME GROUP INC.Listing on record	Jan 26, 2022	Award	47	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PILLARSTONE CAPITAL REITListing unverified	Dec 17, 2021	Award	22,900	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
CME GROUP INC.Listing on record	Jun 29, 2021	Award	551	218.12 USD	$120.2K	Unusual size	SEC
PERDOCEO EDUCATION CorpListing on record	Jun 4, 2021	Award	8,348	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PILLARSTONE CAPITAL REITListing unverified	Dec 17, 2020	Award	26,086	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PILLARSTONE CAPITAL REITListing unverified	Aug 12, 2020	Award	66,666	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
CME GROUP INC.Listing on record	Jun 29, 2020	Award	712	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PERDOCEO EDUCATION CorpListing on record	May 29, 2020	Award	7,535	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PERDOCEO EDUCATION CorpListing on record	Aug 14, 2019	AwardD (derivative)	5,994	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
CME GROUP INC.Listing on record	Jun 27, 2019	Award	606	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
PILLARSTONE CAPITAL REITListing unverified	Apr 1, 2019	Buy	1,999	2.80 USD	$5.6K	conv 32First in 12mo	SEC