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Who

Robin Diamonte

Director

Company insider

Files Form 4 as: Director, Morningstar.

In numbers

Trades disclosed
16
Buys
0
Sells
4
Bought
$0
Sold
$379K
Companies
1
Companies where not an officer
1
First trade
15 May 2016
Last trade
15 May 2026
Last filed
19 May 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
MORN MorningstarDirector · Exchanges & fin. data · last 15 May 20260 buys · 4 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
15 May 2026filed 19 May 2026MORN MorningstarExchanges & fin. dataSEC FORM 4 Code A—1,144 at $0.00filing
15 May 2026filed 19 May 2026MORN MorningstarExchanges & fin. dataSEC FORM 4 Code A—1,144 at $0.00filing
15 May 2025filed 19 May 2025MORN MorningstarExchanges & fin. dataSEC FORM 4 Code A—620 at $0.00filing
15 May 2024filed 17 May 2024MORN MorningstarExchanges & fin. dataSEC FORM 4 Code A—639 at $0.00filing
14 Nov 2023filed 15 Nov 2023MORN MorningstarExchanges & fin. dataSEC FORM 4 Sold$108K400 at $268.91filing
15 May 2023filed 17 May 2023MORN MorningstarExchanges & fin. dataSEC FORM 4 Code A—868 at $0.00filing
16 May 2022filed 17 May 2022MORN MorningstarExchanges & fin. dataSEC FORM 4 Sold$145K600 at $241.00filing
15 May 2022filed 17 May 2022MORN MorningstarExchanges & fin. dataSEC FORM 4 Code A—679 at $0.00filing
17 May 2021filed 19 May 2021MORN MorningstarExchanges & fin. dataSEC FORM 4 Sold$61K250 at $242.91filing
15 May 2021filed 18 May 2021MORN MorningstarExchanges & fin. dataSEC FORM 4 Code A—612 at $0.00filing
3 May 2021filed 5 May 2021MORN MorningstarExchanges & fin. dataSEC FORM 4 Sold$66K250 at $264.75filing
15 May 2020filed 19 May 2020MORN MorningstarExchanges & fin. dataSEC FORM 4 Code A—1,032 at $0.00filing
15 May 2019filed 17 May 2019MORN MorningstarExchanges & fin. dataSEC FORM 4 Code A—1,127 at $0.00filing
15 May 2018filed 17 May 2018MORN MorningstarExchanges & fin. dataSEC FORM 4 Code A—1,336 at $0.00filing
15 May 2017filed 16 May 2017MORN MorningstarExchanges & fin. dataSEC FORM 4 Code A—1,728 at $0.00filing
15 May 2016filed 16 May 2016MORN MorningstarExchanges & fin. dataSEC FORM 4 Code A—3,054 at $0.00filing

Sectors

Financials4

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

Related people

Daniel Mansueto10% owner · 10% owner at Morningstar, filing Form 4 there in the last year
Michael HoltChief Financial Officer · Chief Financial Officer at Morningstar, filing Form 4 there in the last year
Conan WiersemaCAO & Pao · CAO & Pao at Morningstar, filing Form 4 there in the last year
Joseph D. MansuetoExecutive Chairman · Executive Chairman at Morningstar, filing Form 4 there in the last year
William M. LyonsDirector · Director at Morningstar, filing Form 4 there in the last year