rotation.to
Following this device: dark.
Free account
rotation.to
Appearance
Following this device: dark.
Drag a card by its title · ⚙ to size, swap or remove

Who

Dennis Chookaszian

Director

Company insider

Files Form 4 as: Director, Perdoceo Education; Director, CME Group; Director and 10% owner, Pillarstone Capital Reit; Director, Prism Technologies Group; Director, Allscripts Healthcare Solutions; Director, LoopNet; Director, Sapient.

In numbers

Trades disclosed
158
Buys
16
Sells
0
Bought
$1.3M
Sold
$0
Companies
7
Companies where not an officer
7
First trade
14 Oct 2002
Last trade
21 May 2026
Last filed
26 May 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
PRDO Perdoceo EducationDirector · Education Services · last 21 May 20262 buys · 0 sells
CME CME GroupDirector · Exchanges & fin. data · last 27 Jun 20220 buys · 0 sells
Pillarstone Capital ReitDirector, 10% owner · last 13 Dec 20211 buy · 0 sells
Prism Technologies GroupDirector · last 8 Feb 201711 buys · 0 sells
Allscripts Healthcare SolutionsDirector · last 29 May 20152 buys · 0 sells
LoopNetDirector · last 30 Apr 20120 buys · 0 sells
SapientDirector · last 1 Jun 20060 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
101Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
21 May 2026filed 26 May 2026PRDO Perdoceo EducationEducation ServicesSEC FORM 4 Code A—3,987 at $0.00filing
21 May 2026filed 26 May 2026PRDO Perdoceo EducationEducation ServicesSEC FORM 4 Code A—3,987 at $0.00filing
12 Mar 2026filed 13 Mar 2026PRDO Perdoceo EducationEducation ServicesSEC FORM 4 Code M$126K21,129 at $5.96filing
12 Mar 2026filed 13 Mar 2026PRDO Perdoceo Educationoption or derivative · Education ServicesSEC FORM 4 Code M—21,129 at $0.00filing
12 Mar 2026filed 13 Mar 2026PRDO Perdoceo Educationoption or derivative · Education ServicesSEC FORM 4 Code M—21,129 at $0.00filing
12 Mar 2026filed 13 Mar 2026PRDO Perdoceo EducationEducation ServicesSEC FORM 4 Code M$126K21,129 at $5.96filing
22 May 2025filed 27 May 2025PRDO Perdoceo EducationEducation ServicesSEC FORM 4 Code A—5,155 at $0.00filing
6 Mar 2025filed 10 Mar 2025PRDO Perdoceo Educationoption or derivative · Education ServicesSEC FORM 4 Code M$105K26,664 at $3.93filing
6 Mar 2025filed 10 Mar 2025PRDO Perdoceo EducationEducation ServicesSEC FORM 4 Code M$105K26,664 at $3.93filing
23 May 2024filed 24 May 2024PRDO Perdoceo EducationEducation ServicesSEC FORM 4 Code A—6,256 at $0.00filing
25 May 2023filed 26 May 2023PRDO Perdoceo EducationEducation ServicesSEC FORM 4 Code A—7,827 at $0.00filing
14 Mar 2023filed 16 Mar 2023PRDO Perdoceo Educationoption or derivative · Education ServicesSEC FORM 4 Code M$45K16,000 at $2.82filing
14 Mar 2023filed 16 Mar 2023PRDO Perdoceo EducationEducation ServicesSEC FORM 4 Code M$45K16,000 at $2.82filing
27 Jun 2022filed 29 Jun 2022CME CME GroupExchanges & fin. dataSEC FORM 4 Code A$145K693 at $209.44filing
26 May 2022filed 31 May 2022PRDO Perdoceo EducationEducation ServicesSEC FORM 4 Code A—9,050 at $0.00filing
7 Mar 2022filed 8 Mar 2022PRDO Perdoceo Educationoption or derivative · Education ServicesSEC FORM 4 Code M—16,000 at $0.00filing
7 Mar 2022filed 8 Mar 2022PRDO Perdoceo EducationEducation ServicesSEC FORM 4 Code M$104K16,000 at $6.51filing
25 Jan 2022filed 26 Jan 2022CME CME GroupExchanges & fin. dataSEC FORM 4 Code A—47 at $0.00filing
13 Dec 2021filed 17 Dec 2021Pillarstone Capital ReitSEC FORM 4 Code A—22,900 at $0.00filing
25 Jun 2021filed 29 Jun 2021CME CME GroupExchanges & fin. dataSEC FORM 4 Code A$120K551 at $218.12filing

News

No headline names them, or the companies they trade most, lately.

Sectors

Consumer Discretionary2
Not placed14

Buys in green, sells in red, by the company’s sector.

Related people

Todd S. NelsonPresident and CEO · President and CEO at Perdoceo Education, filing Form 4 there in the last year
Gregory L. JacksonDirector and Other role · Director and Other at Perdoceo Education, filing Form 4 there in the last year
Kenda B. GonzalesDirector · Director at Perdoceo Education, filing Form 4 there in the last year
Patrick W. GrossDirector · Director at Perdoceo Education, filing Form 4 there in the last year
William Dean HansenDirector · Director at Perdoceo Education, filing Form 4 there in the last year