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Who

Brian J. Costanzo

Chief Financial Officer

Company insider

Files Form 4 as: Chief Financial Officer, Markel Group.

In numbers

Trades disclosed
33
Buys
0
Sells
0
Bought
$0
Sold
$0
Companies
1
Companies where not an officer
0
First trade
15 Feb 2022
Last trade
30 Sep 2026
Last filed
16 Oct 2026

Companies traded

Where they are an officer
MKL Markel GroupOfficer · Insurance · last 30 Sep 20260 buys · 0 sells

Activity over time

Not enough dated trades to draw.

Every trade

TradedCompanyWhatAmount
30 Sep 2026filed 16 Oct 2026MKL Markel GroupInsuranceSEC FORM 4 Code J$3,0002.061 at $1,455.58filing
30 Jun 2026filed 16 Jul 2026MKL Markel GroupInsuranceSEC FORM 4 Code J$3,5002.164 at $1,617.19filing
30 Jun 2026filed 16 Jul 2026MKL Markel GroupInsuranceSEC FORM 4 Code J$3,4932.16 at $1,617.19filing
15 May 2026filed 19 May 2026MKL Markel GroupInsuranceSEC FORM 4 Code F$24K13.08 at $1,844.00filing
15 May 2026filed 19 May 2026MKL Markel GroupInsuranceSEC FORM 4 Code J$50K30.128 at $1,659.60filing
15 May 2026filed 19 May 2026MKL Markel GroupInsuranceSEC FORM 4 Code F$24K13.08 at $1,844.00filing
15 May 2026filed 19 May 2026MKL Markel GroupInsuranceSEC FORM 4 Code J$50K30.13 at $1,659.60filing
31 Mar 2026filed 15 Apr 2026MKL Markel GroupInsuranceSEC FORM 4 Code J$3,0001.844 at $1,626.96filing
31 Mar 2026filed 15 Apr 2026MKL Markel GroupInsuranceSEC FORM 4 Code J$2,9941.84 at $1,626.96filing
24 Feb 2026filed 26 Feb 2026MKL Markel GroupInsuranceSEC FORM 4 Code A—654.641 at $0.00filing
24 Feb 2026filed 26 Feb 2026MKL Markel GroupInsuranceSEC FORM 4 Code A—654.64 at $0.00filing
31 Dec 2025filed 20 Jan 2026MKL Markel GroupInsuranceSEC FORM 4 Code J$3,5002.184 at $1,602.62filing
31 Dec 2025filed 20 Jan 2026MKL Markel GroupInsuranceSEC FORM 4 Code J$3,4942.18 at $1,602.62filing
2 Dec 2025filed 3 Dec 2025MKL Markel GroupInsuranceSEC FORM 4 Code F$45K21.72 at $2,060.83filing
30 Sep 2025filed 16 Oct 2025MKL Markel GroupInsuranceSEC FORM 4 Code J$3,0061.85 at $1,624.66filing
30 Jun 2025filed 16 Jul 2025MKL Markel GroupInsuranceSEC FORM 4 Code J$3,4942.21 at $1,580.87filing
31 Mar 2025filed 17 Apr 2025MKL Markel GroupInsuranceSEC FORM 4 Code J$3,0072.06 at $1,459.76filing
18 Feb 2025filed 20 Feb 2025MKL Markel GroupInsuranceSEC FORM 4 Code A—379.41 at $0.00filing
31 Dec 2024filed 17 Jan 2025MKL Markel GroupInsuranceSEC FORM 4 Code J$2,7942.09 at $1,336.81filing
5 Dec 2024filed 9 Dec 2024MKL Markel GroupInsuranceSEC FORM 4 Code F$37K21 at $1,759.04filing

News

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

Sectors

No trade we could place in a sector.

Related people

Andrew G. CrowleyEVP & Pres., Markel Ventures · EVP & Pres., Markel Ventures at Markel Group, filing Form 4 there in the last year
Jonathan E. MichaelDirector · Director at Markel Group, filing Form 4 there in the last year
Michael OreillyDirector · Director at Markel Group, filing Form 4 there in the last year
Morgan E. HouselDirector · Director at Markel Group, filing Form 4 there in the last year
Mark BescaDirector · Director at Markel Group, filing Form 4 there in the last year