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Who

Joseph Sirosh

Director

Company insider

Files Form 4 as: Director, Absci; Chief Technology Officer, Compass.

In numbers

Trades disclosed
54
Buys
0
Sells
3
Bought
$0
Sold
$868K
Companies
2
Companies where not an officer
1
First trade
1 Apr 2021
Last trade
4 Jun 2026
Last filed
8 Jun 2026

Companies traded

Where they are an officer
COMP CompassOfficer · RE Services & Developers · last 19 Aug 20220 buys · 3 sells
Everywhere else they filed: board seats, 10% stakes, other companies
ABSI AbsciDirector · Life-science tools · last 4 Jun 20260 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
4 Jun 2026filed 8 Jun 2026ABSI AbsciLife-science toolsSEC FORM 4 Code A—10,100 at $0.00filing
4 Jun 2026filed 8 Jun 2026ABSI Abscioption or derivative · Life-science toolsSEC FORM 4 Code A—39,800 at $0.00filing
4 Jun 2026filed 8 Jun 2026ABSI Abscioption or derivative · Life-science toolsSEC FORM 4 Code A—39,800 at $0.00filing
4 Jun 2026filed 8 Jun 2026ABSI AbsciLife-science toolsSEC FORM 4 Code A—10,100 at $0.00filing
11 Jun 2025filed 12 Jun 2025ABSI Abscioption or derivative · Life-science toolsSEC FORM 4 Code A—57,400 at $0.00filing
11 Jun 2025filed 12 Jun 2025ABSI AbsciLife-science toolsSEC FORM 4 Code A—14,500 at $0.00filing
12 Jun 2024filed 14 Jun 2024ABSI Abscioption or derivative · Life-science toolsSEC FORM 4 Code A—36,274 at $0.00filing
12 Jun 2024filed 14 Jun 2024ABSI AbsciLife-science toolsSEC FORM 4 Code A—8,820 at $0.00filing
14 Jun 2023filed 16 Jun 2023ABSI Abscioption or derivative · Life-science toolsSEC FORM 4 Code A—53,100 at $0.00filing
19 Aug 2022filed 19 Aug 2022COMP CompassRE Services & DevelopersSEC FORM 4 Sold$288K78,702 at $3.66filing
18 Aug 2022filed 19 Aug 2022COMP CompassRE Services & DevelopersSEC FORM 4 Sold$290K71,880 at $4.04filing
17 Aug 2022filed 19 Aug 2022COMP CompassRE Services & DevelopersSEC FORM 4 Sold$290K71,881 at $4.03filing
3 Aug 2022filed 5 Aug 2022COMP Compassoption or derivative · RE Services & DevelopersSEC FORM 4 Code M—9,490 at $0.00filing
3 Aug 2022filed 5 Aug 2022COMP CompassRE Services & DevelopersSEC FORM 4 Code M—9,490 at $0.00filing
3 Aug 2022filed 5 Aug 2022COMP CompassRE Services & DevelopersSEC FORM 4 Code F$10K2,643 at $3.97filing
6 Jul 2022filed 8 Jul 2022COMP Compassoption or derivative · RE Services & DevelopersSEC FORM 4 Code M—9,490 at $0.00filing
6 Jul 2022filed 8 Jul 2022COMP Compassoption or derivative · RE Services & DevelopersSEC FORM 4 Code M—34,117 at $0.00filing
6 Jul 2022filed 8 Jul 2022COMP CompassRE Services & DevelopersSEC FORM 4 Code M—43,607 at $0.00filing
6 Jul 2022filed 8 Jul 2022COMP CompassRE Services & DevelopersSEC FORM 4 Code F$48K10,959 at $4.38filing
8 Jun 2022filed 10 Jun 2022ABSI Abscioption or derivative · Life-science toolsSEC FORM 4 Code A—11,958 at $0.00filing

Sectors

Real Estate3

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

Related people

Ethan Charles GlassChief Legal Officer · Chief Legal Officer at Compass, filing Form 4 there in the last year
Timothy B. GustavsonChief Accounting Officer · Chief Accounting Officer at Compass, filing Form 4 there in the last year
Scott R. WahlersCFO · CFO at Compass, filing Form 4 there in the last year
Robert L. ReffkinChairman and CEO · Chairman and CEO at Compass, filing Form 4 there in the last year
Steven J. SordelloDirector · Director at Compass, filing Form 4 there in the last year