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Who

James Breyer

Director

Company insider

Files Form 4 as: Director, Blackstone; Director, Msd Acquisition Corp. / New; Director, Twenty-First Century Fox; Director and 10% owner, Etsy; Director and 10% owner, Meta Platforms; Director, Walmart; Director, Model N; Director and 10% owner, Brightcove.

In numbers

Trades disclosed
656
Buys
56
Sells
9
Bought
$20.7M
Sold
$2.4B
Companies
15
Companies where not an officer
15
First trade
30 Dec 2005
Last trade
1 Apr 2026
Last filed
3 Apr 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
BX BlackstoneDirector · Capital Markets & Asset Management · last 1 Apr 20263 buys · 0 sells
Msd Acquisition Corp. / NewDirector · last 29 Mar 20230 buys · 0 sells
Twenty-First Century FoxDirector · last 20 Mar 20191 buy · 0 sells
ETSY EtsyDirector, 10% owner · E-Commerce & Marketplaces · last 11 Apr 20160 buys · 4 sells
META Meta PlatformsDirector, 10% owner · Internet Platforms · last 3 May 20130 buys · 5 sells
WMT WalmartDirector · Mass, Grocery & Drug Retail · last 31 Mar 201329 buys · 0 sells
Model NDirector · last 25 Mar 20130 buys · 0 sells
BrightcoveDirector, 10% owner · last 10 Sep 20120 buys · 0 sells
DellDirector · last 13 Jul 20129 buys · 0 sells
Imperva10% owner · last 21 May 20121 buy · 0 sells
Responsys10% owner · last 27 Apr 20110 buys · 0 sells
SCOR comScore10% owner · Business Services · last 11 Aug 20100 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
01Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
1 Apr 2026filed 3 Apr 2026BX BlackstoneCapital Markets & Asset ManagementSEC FORM 4 Code A—1,961 at $0.00filing
1 Apr 2026filed 3 Apr 2026BX BlackstoneCapital Markets & Asset ManagementSEC FORM 4 Code A—1,961 at $0.00filing
4 Nov 2025filed 5 Nov 2025BX BlackstoneCapital Markets & Asset ManagementSEC FORM 4 Bought$529K3,700 at $142.89filing
4 Nov 2025filed 5 Nov 2025BX BlackstoneCapital Markets & Asset ManagementSEC FORM 4 Bought$1.5M10,200 at $144.21filing
29 Oct 2025filed 31 Oct 2025BX BlackstoneCapital Markets & Asset ManagementSEC FORM 4 Bought$2.0M13,170 at $151.23filing
14 Jul 2025filed 15 Jul 2025BX BlackstoneCapital Markets & Asset ManagementSEC FORM 4 Code A—1,295 at $0.00filing
14 Jul 2024filed 16 Jul 2024BX BlackstoneCapital Markets & Asset ManagementSEC FORM 4 Code A—1,636 at $0.00filing
14 Jul 2023filed 17 Jul 2023BX BlackstoneCapital Markets & Asset ManagementSEC FORM 4 Code A—2,019 at $0.00filing
29 Mar 2023filed 30 Mar 2023Msd Acquisition Corp. / Newoption or derivativeSEC FORM 4 Code J—50,000 at $0.00filing
14 Jul 2022filed 15 Jul 2022BX BlackstoneCapital Markets & Asset ManagementSEC FORM 4 Code A—2,364 at $0.00filing
25 May 2022filed 25 May 2022BX BlackstoneCapital Markets & Asset ManagementSEC FORM 4 Bought$935K8,726 at $107.18filing
25 May 2022filed 25 May 2022BX BlackstoneCapital Markets & Asset ManagementSEC FORM 4 Bought$65K600 at $107.72filing
14 Jul 2021filed 15 Jul 2021BX BlackstoneCapital Markets & Asset ManagementSEC FORM 4 Code A—2,109 at $0.00filing
14 Jul 2020filed 16 Jul 2020BX BlackstoneCapital Markets & Asset ManagementSEC FORM 4 Code A—3,898 at $0.00filing
14 Jul 2019filed 16 Jul 2019BX BlackstoneCapital Markets & Asset ManagementSEC FORM 4 Code A—4,564 at $0.00filing
20 Mar 2019filed 20 Mar 2019Twenty-First Century FoxSEC FORM 4 Code D—51,944.86filing
19 Mar 2019filed 20 Mar 2019Twenty-First Century FoxSEC FORM 4 Code D—18,554.14filing
14 Mar 2019filed 14 Mar 2019Twenty-First Century Foxoption or derivativeSEC FORM 4 Code M—1,203filing
14 Mar 2019filed 14 Mar 2019Twenty-First Century Foxoption or derivativeSEC FORM 4 Code M—1,261filing
14 Mar 2019filed 14 Mar 2019Twenty-First Century Foxoption or derivativeSEC FORM 4 Code M—1,122filing

The newest 500 lines are listed; the numbers count every line.

Sectors

Consumer Staples29
Communications5
Consumer Discretionary4
Financials3
Not placed24

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

Related people

Joseph BarattaDirector · Director at Blackstone, filing Form 4 there in the last year
David PayneChief Accounting Officer · Chief Accounting Officer at Blackstone, filing Form 4 there in the last year
Ruth PoratPresident and CIO · Director at Blackstone, filing Form 4 there in the last year
John G. FinleyChief Legal Officer · Chief Legal Officer at Blackstone, filing Form 4 there in the last year
Vikrant SawhneyChief Administrative Officer · Chief Administrative Officer at Blackstone, filing Form 4 there in the last year
Donald J. TrumpPresident · Also traded BX, ETSY, META and 1 more in the last 90 days
Gilbert Ray Cisneros, Jr.Representative, CA-31 · Also traded META and WMT in the last 90 days
Christopher James NicholasExecutive Vice President · Also traded WMT in the last 90 days