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Who

Michael G. Atieh

Director

Company insider

Files Form 4 as: Director, Immatics; Director, Chubb; Director, Oyster Point Pharma; Director, electroCore; EVP, CFO, & CBO, Treasurer, Ophthotech; Director, Theravance Biopharma; Exec. VP & CFO, Osi Pharmaceuticals.

In numbers

Trades disclosed
144
Buys
0
Sells
23
Bought
$0
Sold
$8.0M
Companies
7
Companies where not an officer
5
First trade
18 May 2006
Last trade
16 Jun 2026
Last filed
18 Jun 2026

Companies traded

Where they are an officer
OphthotechOfficer · last 4 Jan 20160 buys · 1 sell
Osi PharmaceuticalsOfficer · last 13 Dec 20080 buys · 4 sells
Everywhere else they filed: board seats, 10% stakes, other companies
IMTX ImmaticsDirector · Biotechnology · last 16 Jun 20260 buys · 0 sells
CB ChubbDirector · Insurance · last 21 May 20260 buys · 18 sells
Oyster Point PharmaDirector · last 3 Jan 20230 buys · 0 sells
ECOR electroCoreDirector · Medical Devices · last 11 Jun 20210 buys · 0 sells
Theravance BiopharmaDirector · Pharmaceuticals · last 3 Jun 20140 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
10Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
16 Jun 2026filed 18 Jun 2026IMTX Immaticsoption or derivative · BiotechnologySEC FORM 4 Code A—48,000 at $0.00filing
16 Jun 2026filed 18 Jun 2026IMTX Immaticsoption or derivative · BiotechnologySEC FORM 4 Code A—48,000 at $0.00filing
21 May 2026filed 26 May 2026CB ChubbInsuranceSEC FORM 4 Code A—681filing
21 May 2026filed 26 May 2026CB ChubbInsuranceSEC FORM 4 Code F$64K193 at $330.26filing
21 May 2026filed 26 May 2026CB ChubbInsuranceSEC FORM 4 Sold$190K578 at $329.53filing
21 May 2026filed 26 May 2026CB ChubbInsuranceSEC FORM 4 Code A—681filing
21 May 2026filed 26 May 2026CB ChubbInsuranceSEC FORM 4 Code F$64K193 at $330.26filing
21 May 2026filed 26 May 2026CB ChubbInsuranceSEC FORM 4 Sold$190K578 at $329.53filing
16 Jun 2025filed 18 Jun 2025CB ChubbInsuranceSEC FORM 4 Sold$155K538 at $287.56filing
15 May 2025filed 16 May 2025CB ChubbInsuranceSEC FORM 4 Code A—771filing
15 May 2025filed 16 May 2025CB ChubbInsuranceSEC FORM 4 Code F$53K180 at $292.05filing
3 Sep 2024filed 5 Sep 2024CB ChubbInsuranceSEC FORM 4 Sold$75K261 at $287.49filing
17 May 2024filed 20 May 2024CB ChubbInsuranceSEC FORM 4 Sold$193K716 at $269.70filing
16 May 2024filed 17 May 2024CB ChubbInsuranceSEC FORM 4 Code A—718filing
16 May 2024filed 17 May 2024CB ChubbInsuranceSEC FORM 4 Code F$63K239 at $264.88filing
28 Jul 2023filed 14 Aug 2023CB ChubbInsuranceSEC FORM 4 Sold$156K750 at $208.39filing
17 May 2023filed 19 May 2023CB ChubbInsuranceSEC FORM 4 Code A—955filing
17 May 2023filed 19 May 2023CB ChubbInsuranceSEC FORM 4 Code F$46K233 at $198.93filing
3 Jan 2023filed 4 Jan 2023Oyster Point Pharmaoption or derivativeSEC FORM 4 Code D—5,359filing
3 Jan 2023filed 4 Jan 2023Oyster Point Pharmaoption or derivativeSEC FORM 4 Code D—5,199filing

Sectors

Financials18
Not placed5

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

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