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person · Reporting owner

CHOOKASZIAN DENNIS

Disclosed activity across 5 companies

Tapewire entity
44340
SEC CIK
0001120026

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
CME GROUP INC.CME · Entity 2909DirectorJune 27, 2022June 29, 2022
Maxar Technologies Inc.MAXR · Entity 113823DirectorJanuary 01, 2019January 10, 2019
PERDOCEO EDUCATION CorpPRDO · Entity 4488DirectorMay 21, 2026May 26, 2026
PILLARSTONE CAPITAL REITPRLE · Entity 132250Director · 10% ownerDecember 13, 2021December 17, 2021
Prism Technologies Group, Inc.PRZM · Entity 179042DirectorFebruary 06, 2017February 09, 2017

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

CME GROUP INC.

Report date June 27, 2022 · Filed June 29, 2022

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common Stock Class ASEC Table I · non-derivativeDirect4,106 Reported balance After 2022-06-27 transaction · row 1
1 source row

Row 1 · 2022-06-27 · Grant · Acquired 693 · Balance 4,106

F1: Granted pursuant to the CME Group Director Stock Plan, as amended and restated.

Common Stock Class ASEC Table I · non-derivativeIndirectby Spouse12,934 Reported balance Holding disclosure · report date 2022-06-27 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 12,934

Filing footnotes · ownership attribution and instrument terms

F1: Granted pursuant to the CME Group Director Stock Plan, as amended and restated.

Maxar Technologies Inc.

Report date January 01, 2019 · Filed January 10, 2019

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect34,071 Reported balance Holding disclosure · report date 2019-01-01 · row 1 Holding and transaction disclosures are not merged.
1 source row

Row 1 · Balance 34,071

Deferred Stock UnitsSEC Table II · derivative / convertible security · Conversion / exercise price $0.00DirectNot disclosed Reported balance Holding disclosure · report date 2019-01-01 · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · Balance Not disclosed

F1: Maxar Technologies Inc. ("Issuer") awarded 20,999 deferred stock units (each a "DSU") to the Reporting Person representing director fees. DSUs are awarded quarterly for director compensation. Each DSU is the equivalent of one share of the Issuer's common stock. DSUs were granted at a price equal to the closing price of the Issuer's Common Stock as reported on the Toronto Stock Exchange ("TSX") on the day before the date of grant and are paid out at retirement based on the closing price of the Issuer's Common Stock on the TSX on the day before the retirement date. Each DSU is fully vested on the date of grant.

Filing footnotes · ownership attribution and instrument terms

F1: Maxar Technologies Inc. ("Issuer") awarded 20,999 deferred stock units (each a "DSU") to the Reporting Person representing director fees. DSUs are awarded quarterly for director compensation. Each DSU is the equivalent of one share of the Issuer's common stock. DSUs were granted at a price equal to the closing price of the Issuer's Common Stock as reported on the Toronto Stock Exchange ("TSX") on the day before the date of grant and are paid out at retirement based on the closing price of the Issuer's Common Stock on the TSX on the day before the retirement date. Each DSU is fully vested on the date of grant.

PERDOCEO EDUCATION Corp

Report date May 21, 2026 · Filed May 26, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect142,570 Reported balance After 2026-05-21 transaction · row 1 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 1 · 2026-05-21 · Grant · Acquired 3,987 · Balance 142,570

F1: Time-based restricted stock units granted pursuant to Issuer's 2026 Long-Term Incentive Plan, with each unit representing the contingent right to receive one share of Issuer's common stock. These units vest on June 14, 2027.

F2: Includes 14,619 vested deferred stock units granted pursuant to Issuer's 2008 Incentive Compensation Plan, with each unit representing the right to receive one share of common stock upon Reporting Person's termination of service from Issuer. Also includes 5,155 unvested restricted stock units granted pursuant to Issuer's 2016 Incentive Compensation Plan, with each unit representing the contingent right to receive one share of Issuer's common stock upon vesting.

Common StokSEC Table I · non-derivativeIndirectBy Spouse7,000 Reported balance Holding disclosure · report date 2026-05-21 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 7,000

Filing footnotes · ownership attribution and instrument terms

F1: Time-based restricted stock units granted pursuant to Issuer's 2026 Long-Term Incentive Plan, with each unit representing the contingent right to receive one share of Issuer's common stock. These units vest on June 14, 2027.

F2: Includes 14,619 vested deferred stock units granted pursuant to Issuer's 2008 Incentive Compensation Plan, with each unit representing the right to receive one share of common stock upon Reporting Person's termination of service from Issuer. Also includes 5,155 unvested restricted stock units granted pursuant to Issuer's 2016 Incentive Compensation Plan, with each unit representing the contingent right to receive one share of Issuer's common stock upon vesting.

PILLARSTONE CAPITAL REIT

Report date December 13, 2021 · Filed December 17, 2021

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common SharesSEC Table I · non-derivativeDirect117,651 Reported balance After 2021-12-13 transaction · row 1
1 source row

Row 1 · 2021-12-13 · Grant · Acquired 22,900 · Balance 117,651

F1: Represents grant of Common Shares pursuant to Registrant's 2016 Equity Plan

Filing footnotes · ownership attribution and instrument terms

F1: Represents grant of Common Shares pursuant to Registrant's 2016 Equity Plan

Prism Technologies Group, Inc.

Report date February 06, 2017 · Filed February 09, 2017

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect454,288 Ending reported balance After 2017-02-08 transaction · row 3
3 source rows · reconciled sequence

Row 1 · 2017-02-06 · Purchase · Acquired 52,111 · Balance 419,457

F1: 1) Represents the weighted average of purchases made at prices between $0.32 and $0.35.

Row 2 · 2017-02-07 · Purchase · Acquired 16,969 · Balance 436,426

F2: 2) Represents the weighted average of purchases made at prices between $0.32 and $0.33.

Row 3 · 2017-02-08 · Purchase · Acquired 17,862 · Balance 454,288

F3: 3) Represents the weighted average of purchases made at prices between $0.30 and $0.32.

Filing footnotes · ownership attribution and instrument terms

F1: 1) Represents the weighted average of purchases made at prices between $0.32 and $0.35.

F2: 2) Represents the weighted average of purchases made at prices between $0.32 and $0.33.

F3: 3) Represents the weighted average of purchases made at prices between $0.30 and $0.32.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
May 21, 2026 Filed May 26, 2026 22:00 UTC PERDOCEO EDUCATION Corp PRDO · Entity 4488 GrantCommon Stock 3,987 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-239777 · ownership.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 142,570

F1 · shares: Time-based restricted stock units granted pursuant to Issuer's 2026 Long-Term Incentive Plan, with each unit representing the contingent right to receive one share of Issuer's common stock. These units vest on June 14, 2027.

F2 · balance_after: Includes 14,619 vested deferred stock units granted pursuant to Issuer's 2008 Incentive Compensation Plan, with each unit representing the right to receive one share of common stock upon Reporting Person's termination of service from Issuer. Also includes 5,155 unvested restricted stock units granted pursuant to Issuer's 2016 Incentive Compensation Plan, with each unit representing the contingent right to receive one share of Issuer's common stock upon vesting.

Read SEC document
March 12, 2026 Filed Mar 13, 2026 22:00 UTC PERDOCEO EDUCATION Corp PRDO · Entity 4488 Exercise / conversionNon-Qualified Option (right to buy) · Derivative 21,129 $0.00 Strike: $5.96 $0.00
Disclosure

SEC source: 0001193125-26-106544 · ownership.xml · derivative · entry 3

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 21,129 shares

Expires 2026-05-24

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 12, 2026 Filed Mar 13, 2026 22:00 UTC PERDOCEO EDUCATION Corp PRDO · Entity 4488 Exercise / conversionCommon Stock 21,129 $5.96 $125,928.84
Disclosure

SEC source: 0001193125-26-106544 · ownership.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 138,583

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Includes 14,619 vested deferred stock unites granted pursuant to Issuer's 2008 Incentive Compensation Plan, with each unit representing the right to receive one share of common stock upon Reporting Person's termination of service from Issuer. Also includes 5,155 unvested restricted stock units granted pursuant to Issuer's 2016 Incentive Compensation Plan, with each unit representing the contingent right to receive one share of Issuer's common stock upon vesting.

Read SEC document
May 22, 2025 Filed May 27, 2025 22:00 UTC PERDOCEO EDUCATION Corp PRDO · Entity 4488 GrantCommon Stock 5,155 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-077900 · ownership.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 117,454

F1 · shares: Time-based restricted stock units granted pursuant to Issuer's 2016 Incentive Compensation Plan, with each unit representing the contingent right to receive one share of Issuer's common stock. These units vest on June 14, 2026.

F2 · balance_after: Includes 14,619 vested deferred stock units granted pursuant to Issuer's 2008 Incentive Compensation Plan, with each unit representing the right to receive one share of common stock upon Reporting Person's termination of service from Issuer. Also includes 11,411 unvested restricted stock units granted pursuant to Issuer's 2016 Incentive Compensation Plan, with each unit representing the contingent right to receive one share of Issuer's common stock upon vesting.

Read SEC document
March 06, 2025 Filed Mar 10, 2025 22:36 UTC PERDOCEO EDUCATION Corp PRDO · Entity 4488 Exercise / conversionNon-Qualified Option (right to buy) · Derivative 26,664 $3.93 Strike: $3.93 $104,789.52
Disclosure

SEC source: 0000950170-25-036615 · ownership.xml · derivative · entry 3

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 26,664 shares

Expires 2025-05-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 06, 2025 Filed Mar 10, 2025 22:36 UTC PERDOCEO EDUCATION Corp PRDO · Entity 4488 Exercise / conversionCommon Stock 26,664 $3.93 $104,789.52
Disclosure

SEC source: 0000950170-25-036615 · ownership.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 112,299

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · ownership.direct: Includes 14,619 vested deferred stock units granted pursuant to Issuer's 2008 Incentive Compensation Plan, with each unit representing the right to receive one share of Issuer's common stock upon Reporting Person's termination of service from Issuer. Also includes 6,256 unvested restricted stock units granted pursuant to Issuer's Amended and Restated 2016 Incentive Compensation Plan, with each unit representing the contingent right to receive one share of Issuer's common stock upon vesting.

Read SEC document
May 23, 2024 Filed May 24, 2024 20:30 UTC PERDOCEO EDUCATION Corp PRDO · Entity 4488 GrantCommon Stock 6,256 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-064631 · ownership.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,635

F1 · shares: Time-based restricted stock units granted pursuant to Issuer's 2016 Incentive Compensation Plan, with each unit representing the contingent right to receive one share of Issuer's common stock. These units vest on June 14, 2025.

F2 · balance_after: Includes 14,619 vested deferred stock units granted pursuant to Issuer's 2008 Incentive Compensation Plan, with each unit representing the right to receive one share of common stock upon Reporting Person's termination of service from Issuer. Also includes 14,083 unvested restricted stock units granted pursuant to Issuer's 2016 Incentive Compensation Plan, with each unit representing the contingent right to receive one share of Issuer's common stock upon vesting.

Read SEC document
May 25, 2023 Filed May 26, 2023 20:54 UTC PERDOCEO EDUCATION Corp PRDO · Entity 4488 GrantCommon Stock 7,827 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-032582 · doc4.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 79,379

F1 · shares: Time-based restricted stock units granted pursuant to Issuer's 2016 Incentive Compensation Plan, with each unit representing the contingent right to receive one share of Issuer's common stock. These units vest on June 14, 2024.

F2 · balance_after: Includes 14,619 vested deferred stock units granted pursuant to Issuer's 2008 Incentive Compensation Plan, with each unit representing the right to receive one share of common stock upon Reporting Person's termination of service from Issuer. Also includes 16,877 unvested restricted stock units granted pursuant to Issuer's Amended and Restated 2016 Incentive Compensation Plan, with each unit representing the contingent right to receive one share of Issuer's common stock upon vesting.

Read SEC document
March 14, 2023 Filed Mar 16, 2023 23:12 UTC PERDOCEO EDUCATION Corp PRDO · Entity 4488 Exercise / conversionNon-qualified Option (right to buy) · Derivative 16,000 $2.82 Strike: $2.82 $45,120.00
Disclosure

SEC source: 0001209191-23-019434 · doc4.xml · derivative · entry 3

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 16,000 shares

Expires 2023-05-13

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: On May 14, 2013 the Reporting Person was granted 16,000 non-qualified stock options. The option grant vested in four installments on May 14, 2013, 2014, 2015 and 2016.

Read SEC document
March 14, 2023 Filed Mar 16, 2023 23:12 UTC PERDOCEO EDUCATION Corp PRDO · Entity 4488 Exercise / conversionCommon Stock 16,000 $2.82 $45,120.00
Disclosure

SEC source: 0001209191-23-019434 · doc4.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 71,552

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Includes 14,619 vested deferred stock units granted pursuant to Issuer's 2008 Incentive Compensation Plan, with each unit representing the right to receive one share of Issuer's common stock upon Reporting Person's termination of service from Issuer. Also includes 9,050 unvested restricted stock units granted pursuant to Issuer's Amended and Restated 2016 Incentive Compensation Plan, with each unit representing the contingent right to receive one share of Issuer's common stock upon vesting.

Read SEC document
June 27, 2022 Filed Jun 29, 2022 19:30 UTC CME GROUP INC. CME · Entity 2909 GrantCommon Stock Class A 693 $209.44 $145,141.92
Disclosure

SEC source: 0001156375-22-000208 · wf-form4_165653100652358.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,106

F1 · kind: Granted pursuant to the CME Group Director Stock Plan, as amended and restated.

Read SEC document
May 26, 2022 Filed May 31, 2022 22:07 UTC PERDOCEO EDUCATION Corp PRDO · Entity 4488 GrantCommon Stock 9,050 $0.00 $0.00
Disclosure

SEC source: 0001209191-22-032940 · doc4.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,552

F1 · shares: Time-based restricted stock units granted pursuant to Issuer's Amended and Restated 2016 Incentive Compensation Plan, with each unit representing the contingent right to receive one share of Issuer's common stock. These units vest on June 14, 2023.

F2 · balance_after: Includes 14,619 vested deferred stock units granted pursuant to Issuer's 2008 Incentive Compensation Plan, with each unit representing the right to receive one share of Issuer's common stock upon Reporting Person's termination of service from Issuer. Also includes 17,398 unvested restricted stock units granted pursuant to Issuer's Amended and Restated 2016 Incentive Compensation Plan, with each unit representing the contingent right to receive one share of Issuer's common stock upon vesting.

Read SEC document
March 07, 2022 Filed Mar 8, 2022 14:23 UTC PERDOCEO EDUCATION Corp PRDO · Entity 4488 Exercise / conversionNon-Qualified Option (right to buy) · Derivative 16,000 $0.00 Strike: $6.51 $0.00
Disclosure

SEC source: 0001209191-22-016904 · doc4.xml · derivative · entry 3

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 16,000 shares

Expires 2022-05-16

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: On May 17, 2012 the Reporting Person was granted 16,000 non-qualified stock options. The option grant vested in four installments on May 17, 2012, 2013, 2014 and 2015.

Read SEC document
March 07, 2022 Filed Mar 8, 2022 14:23 UTC PERDOCEO EDUCATION Corp PRDO · Entity 4488 Exercise / conversionCommon Stock 16,000 $6.51 $104,160.00
Disclosure

SEC source: 0001209191-22-016904 · doc4.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,502

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Includes 14,619 vested deferred stock units granted pursuant to Issuer's 2008 Incentive Compensation Plan, with each unit representing the right to receive one share of common stock upon Reporting Person's termination of service from Issuer. Also includes 8,348 restricted stock units granted pursuant to Issuer's 2016 Incentive Compensation Plan, with each unit representing the contingent right to receive one share of Issuer's common stock upon vesting.

Read SEC document
January 25, 2022 Filed Jan 26, 2022 20:18 UTC CME GROUP INC. CME · Entity 2909 GrantCommon Stock Class A 47 $0.00 $0.00
Disclosure

SEC source: 0001156375-22-000017 · wf-form4_164322827252386.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,413

F1 · kind: Granted pursuant to the CME Group Director Stock Plan, as amended and restated.

Read SEC document
December 13, 2021 Filed Dec 17, 2021 22:14 UTC PILLARSTONE CAPITAL REIT PRLE · Entity 132250 GrantCommon Shares 22,900 $0.00 $0.00
Disclosure

SEC source: 0000928953-21-000043 · wf-form4_163977925004589.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 117,651

F1 · shares: Represents grant of Common Shares pursuant to Registrant's 2016 Equity Plan

Read SEC document
June 25, 2021 Filed Jun 29, 2021 23:57 UTC CME GROUP INC. CME · Entity 2909 GrantCommon Stock Class A 551 $218.12 $120,184.12
Disclosure

SEC source: 0001156375-21-000068 · edgardoc.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,366

F1 · kind: Granted pursuant to the CME Group Director Stock Plan, as amended and restated.

Read SEC document
June 03, 2021 Filed Jun 4, 2021 20:29 UTC PERDOCEO EDUCATION Corp PRDO · Entity 4488 GrantCommon Stock 8,348 $0.00 $0.00
Disclosure

SEC source: 0001209191-21-038239 · doc4.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,502

F1 · shares: Time-based restricted stock units granted pursuant to Issuer's Amended and Restated 2016 Incentive Compensation Plan, with each unit representing the contingent right to receive one share of Issuer's common stock. These units vest on June 14, 2022.

F2 · balance_after: Includes 14,619 vested deferred stock units granted pursuant to Issuer's 2008 Incentive Compensation Plan, with each unit representing the right to receive one share of Issuer's common stock upon Reporting Person's termination of service from Issuer. Also includes 15,883 restricted stock units granted pursuant to Issuer's Amended and Restated 2016 Incentive Compensation Plan, with each unit representing the contingent right to receive one share of Issuer's common stock upon vesting.

Read SEC document
December 17, 2020 Filed Dec 17, 2020 21:40 UTC PILLARSTONE CAPITAL REIT PRLE · Entity 132250 GrantCommon Shares 26,086 $0.00 $0.00
Disclosure

SEC source: 0000928953-20-000061 · wf-form4_160824120103803.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 94,751

F1 · shares: Represents grant of Common Shares pursuant to Registrant's 2016 Equity Plan.

Read SEC document
August 12, 2020 Filed Aug 12, 2020 21:15 UTC PILLARSTONE CAPITAL REIT PRLE · Entity 132250 GrantCommon Shares 66,666 $0.00 $0.00
Disclosure

SEC source: 0000928953-20-000024 · wf-form4_159726689525339.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 68,665

F1 · shares: Represents grant of Common Shares pursuant to Registrant's 2016 Equity Plan.

Read SEC document
June 25, 2020 Filed Jun 29, 2020 22:08 UTC CME GROUP INC. CME · Entity 2909 GrantCommon Stock Class A 712 $0.00 $0.00
Disclosure

SEC source: 0001156375-20-000053 · edgardoc.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,815

F1 · kind: Granted pursuant to the CME Group Director Stock Plan, as amended and restated.

Read SEC document
May 28, 2020 Filed May 29, 2020 20:18 UTC PERDOCEO EDUCATION Corp PRDO · Entity 4488 GrantCommon Stock 7,535 $0.00 $0.00
Disclosure

SEC source: 0001209191-20-032916 · doc4.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,154

F1 · shares: Time-based restricted stock units granted pursuant to Issuer's 2016 Incentive Compensation Plan, with each unit representing the contingent right to receive one share of Issuer's common stock. These units vest on June 14, 2021.

F2 · balance_after: Includes 14,619 vested deferred stock units granted pursuant to Issuer's 2008 Incentive Compensation Plan, with each unit representing the right to receive one share of Issuer's common stock upon Reporting Person's termination of service from Issuer. Also includes 7,535 restricted stock units granted pursuant to Issuer's 2016 Incentive Compensation Plan, with each unit representing the contingent right to receive one share of Issuer's common stock upon vesting.

Read SEC document
August 12, 2019 Filed Aug 14, 2019 20:16 UTC PERDOCEO EDUCATION Corp CECO · Entity 4488 GrantNon-Qualified Stock Option (right to buy · Derivative 5,994 $0.00 Strike: $21.29 $0.00
Disclosure

SEC source: 0001209191-19-045893 · doc4.xml · derivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,994

Underlying: Common Stock · 5,994 shares

Expires 2029-08-12

Read SEC document
June 25, 2019 Filed Jun 27, 2019 19:28 UTC CME GROUP INC. CME · Entity 2909 GrantCommon Stock Class A 606 $0.00 $0.00
Disclosure

SEC source: 0001156375-19-000060 · edgardoc.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,103

F1 · kind: Granted pursuant to the CME Group Director Stock Plan, as amended and restated.

Read SEC document
March 29, 2019 Filed Apr 1, 2019 20:13 UTC PILLARSTONE CAPITAL REIT PRLE · Entity 132250 PurchaseClass C Convertible Preferred Stock · Derivative 22,500 $4.00 Strike: $1.00 $90,000.00
Disclosure

SEC source: 0000908662-19-000108 · edgar.xml · derivative · entry 3

CHOOKASZIAN DENNIS · CIK 0001120026 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,500

Underlying: Common Stock · 225,000 shares

Expires not disclosed

F2 · derivative.exercise_price: The Class C Convertible Preferred Stock is convertible, at the option of the Reporting Person, at any time without the payment of any additional consideration. The number of common shares for which each share of Class C Convertible Preferred Stock is convertible is determined by dividing the sum of $10.00 and any accrued and unpaid dividends by $1.00. As of March 29, 2019, the Class C Convertible Preferred Stock held by the Reporting Person is convertible into 225,000 common shares of the Issuer.

F3 · derivative.expiration_date: The Class C Convertible Preferred Stock is convertible at any time, at the Reporting Person's election, and has no expiration date.

Read SEC document
March 29, 2019 Filed Apr 1, 2019 20:13 UTC PILLARSTONE CAPITAL REIT PRLE · Entity 132250 PurchaseConvertible Note · Derivative Not disclosed $37,562.31 Strike: $1.33 $37,562.31
Disclosure

SEC source: 0000908662-19-000108 · edgar.xml · derivative · entry 2

CHOOKASZIAN DENNIS · CIK 0001120026 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: Not disclosed

Underlying: Common Stock · 28,221 shares

Expires 2021-11-20

F1 · security: Represents a Convertible Note payable to the Reporting Person that is convertible on or before November 20, 2021 at the option of the Reporting Person into common shares of the Issuer. The number of shares into which the Convertible Note is convertible is equal to the quotient obtained by dividing the principal amount of the note plus interest accrued by $1.331. As of March 29, 2019, the Convertible Note is convertible into 28,221 shares.

Read SEC document
March 29, 2019 Filed Apr 1, 2019 20:13 UTC PILLARSTONE CAPITAL REIT PRLE · Entity 132250 PurchaseCommon Stock 1,999 $2.80 $5,597.20
Disclosure

SEC source: 0000908662-19-000108 · edgar.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,999

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September 25, 2018 Filed Sep 27, 2018 21:05 UTC CME GROUP INC. CME · Entity 2909 GrantCommon Stock Class A 87 $0.00 $0.00
Disclosure

SEC source: 0001156375-18-000105 · edgardoc.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,497

F1 · shares: Incremental grant made pursuant to the CME Group Director Stock Plan, as amended and restated, as a result of an increase to Board compensation.

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June 25, 2018 Filed Jun 27, 2018 17:39 UTC CME GROUP INC. CME · Entity 2909 GrantCommon Stock Class A 601 $0.00 $0.00
Disclosure

SEC source: 0001156375-18-000059 · edgardoc.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,410

F1 · kind: Granted pursuant to the CME Group Director Stock Plan, as amended and restated.

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May 31, 2018 Filed Jun 1, 2018 14:03 UTC PERDOCEO EDUCATION Corp CECO · Entity 4488 GrantNon-Qualified Stock Option (right to buy · Derivative 8,017 $0.00 Strike: $15.39 $0.00
Disclosure

SEC source: 0001209191-18-034536 · doc4.xml · derivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,017

Underlying: Common Stock · 8,017 shares

Expires 2028-05-31

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June 26, 2017 Filed Jun 27, 2017 22:01 UTC CME GROUP INC. CME · Entity 2909 GrantCommon Stock Class A 809 $0.00 $0.00
Disclosure

SEC source: 0001156375-17-000073 · edgardoc.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 809

F1 · kind: Granted pursuant to the CME Group Director Stock Plan, as amended and restated.

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May 23, 2017 Filed May 24, 2017 21:11 UTC PERDOCEO EDUCATION Corp CECO · Entity 4488 GrantNon-Qualified Stock Option (right to buy) · Derivative 11,271 $0.00 Strike: $9.69 $0.00
Disclosure

SEC source: 0001209191-17-035051 · doc4.xml · derivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,271

Underlying: Common Stock · 11,271 shares

Expires 2027-05-23

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February 08, 2017 Filed Feb 9, 2017 13:12 UTC Prism Technologies Group, Inc. PRZM · Entity 179042 PurchaseCommon Stock 17,862 $0.31 $5,537.22
Disclosure

SEC source: 0001437749-17-002005 · rdgdoc.xml · nonDerivative · entry 3

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 454,288

F3 · price: 3) Represents the weighted average of purchases made at prices between $0.30 and $0.32.

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February 07, 2017 Filed Feb 9, 2017 13:12 UTC Prism Technologies Group, Inc. PRZM · Entity 179042 PurchaseCommon Stock 16,969 $0.33 $5,599.77
Disclosure

SEC source: 0001437749-17-002005 · rdgdoc.xml · nonDerivative · entry 2

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 436,426

F2 · price: 2) Represents the weighted average of purchases made at prices between $0.32 and $0.33.

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February 06, 2017 Filed Feb 9, 2017 13:12 UTC Prism Technologies Group, Inc. PRZM · Entity 179042 PurchaseCommon Stock 52,111 $0.34 $17,717.74
Disclosure

SEC source: 0001437749-17-002005 · rdgdoc.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 419,457

F1 · price: 1) Represents the weighted average of purchases made at prices between $0.32 and $0.35.

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February 06, 2017 Filed Feb 9, 2017 13:03 UTC Prism Technologies Group, Inc. PRZM · Entity 179042 PurchaseCommon Stock 52,111 $0.33 $17,196.63
Disclosure

SEC source: 0001437749-17-002000 · rdgdoc.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 417,457

F1 · price: 1) Represents the average of multiple purchases made at prices between $0.32 and $0.35.

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February 03, 2017 Filed Feb 7, 2017 15:56 UTC Prism Technologies Group, Inc. PRZM · Entity 179042 PurchaseCommon Stock 30,000 $0.35 $10,500.00
Disclosure

SEC source: 0001437749-17-001852 · rdgdoc.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 367,346

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January 18, 2017 Filed Jan 20, 2017 12:33 UTC Prism Technologies Group, Inc. PRZM · Entity 179042 PurchaseCommon Stock 200 $0.32 $64.00
Disclosure

SEC source: 0001437749-17-000908 · rdgdoc.xml · nonDerivative · entry 2

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 337,346

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January 18, 2017 Filed Jan 20, 2017 12:33 UTC Prism Technologies Group, Inc. PRZM · Entity 179042 PurchaseCommon Stock 5,000 $0.33 $1,650.00
Disclosure

SEC source: 0001437749-17-000908 · rdgdoc.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 337,146

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January 17, 2017 Filed Jan 18, 2017 16:33 UTC Prism Technologies Group, Inc. PRZM · Entity 179042 PurchaseCommon Stock 11,200 $0.34 $3,808.00
Disclosure

SEC source: 0001437749-17-000779 · rdgdoc.xml · nonDerivative · entry 2

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 332,146

Read SEC document
January 17, 2017 Filed Jan 18, 2017 16:33 UTC Prism Technologies Group, Inc. PRZM · Entity 179042 PurchaseCommon Stock 5,000 $0.35 $1,750.00
Disclosure

SEC source: 0001437749-17-000779 · rdgdoc.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 320,946

Read SEC document
January 03, 2017 Filed Jan 6, 2017 10:53 UTC Prism Technologies Group, Inc. PRZM · Entity 179042 PurchaseCommon Stock 2,005 $0.29 $581.45
Disclosure

SEC source: 0001437749-17-000305 · rdgdoc.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 315,946

Read SEC document
December 30, 2016 Filed Jan 4, 2017 09:50 UTC Prism Technologies Group, Inc. PRZM · Entity 179042 PurchaseCommon Stock 9,653 $0.28 $2,702.84
Disclosure

SEC source: 0001437749-17-000073 · rdgdoc.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 313,941

Read SEC document
September 01, 2016 Filed Jan 30, 2017 19:57 UTC CME GROUP INC. CME · Entity 2909 GiftCommon Stock Class A 2,139 $0.00 $0.00
Disclosure

SEC source: 0001156375-17-000006 · edgardoc.xml · nonDerivative · entry 2

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · by Spouse

Disclosed balance after: 12,934

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September 01, 2016 Filed Jan 30, 2017 19:57 UTC CME GROUP INC. CME · Entity 2909 GiftCommon Stock Class A 2,139 $0.00 $0.00
Disclosure

SEC source: 0001156375-17-000006 · edgardoc.xml · nonDerivative · entry 1

CHOOKASZIAN DENNIS · CIK 0001120026 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: This transaction involved a gift of securities by the reporting person to his spouse, who shares reporting person's household. The reporting person disclaims beneficial ownership of the shares held by his spouse, and this report should not be deemed as an admission that the reporting person is the beneficial owner of his spouse's shares for purposes of Section 16 or for any other purpose.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.