BLAYLOCK RONALD E

Director at BERKLEY W R CORP · on record since May 16, 2006
Director at URBAN ONE, INC. · on record since Aug 23, 2007
Director at CARMAX INC · on record since Oct 29, 2007
10% owner at GVI SECURITY SOLUTIONS INC · on record since Dec 9, 2009
Director at PFIZER INC · on record since Apr 27, 2026
Director at Conyers Park Acquisition Corp. · on record since Jul 17, 2019
Director at Advantage Solutions Inc. · on record since Jan 6, 2021

Insider trading activity of BLAYLOCK RONALD E

Transactions on record: 138; since Aug 13, 2003

Open-market buys: 11; $2.4M

Open-market sells: 14; $4.6M

Companies traded: 5; last filing Aug 5, 2026

Figures computed from official regulatory filings — .

Companies where BLAYLOCK RONALD E has traded

PFIZER INC21 tx · $4.2M · Aug 5, 2026
BERKLEY W R CORP29 tx · $404K · Jun 4, 2026
CARMAX INC64 tx · $5M · Jul 2, 2024
Advantage Solutions Inc.3 tx · May 27, 2022
URBAN ONE, INC.21 tx · $728.2K · Jun 21, 2018

Track record of BLAYLOCK RONALD E

Statistical track record

Free

Open-market buys: 11

Last buy: Aug 5, 2026

Win rates and median returns are available with a free account (5 insiders/month).

Transaction history of BLAYLOCK RONALD E

Co-insiders of BLAYLOCK RONALD E

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Src
PFIZER INCListing on record	Aug 5, 2026	Buy	39,231	25.46 USD	$998.8K	SEC
BERKLEY W R CORPListing on record	Jun 4, 2026	Award	3,090	0.00 USD	—	SEC
PFIZER INCListing on record	Apr 27, 2026	AwardD (derivative)	7,686.54	26.67 USD	$205K	SEC
BERKLEY W R CORPListing on record	Jun 13, 2025	Award	2,776	0.00 USD	—	SEC
PFIZER INCListing on record	Apr 28, 2025	AwardD (derivative)	8,999	22.78 USD	$205K	SEC
PFIZER INCListing on record	Feb 14, 2025	Buy	19,457	25.65 USD	$499.1K	SEC
CARMAX INCListing on record	Jul 2, 2024	Award	2,598	0.00 USD	—	SEC
BERKLEY W R CORPListing on record	Jun 12, 2024	Award	2,534	0.00 USD	—	SEC
PFIZER INCListing on record	Apr 26, 2024	AwardD (derivative)	8,115.6	25.26 USD	$205K	SEC
CARMAX INCListing on record	Jul 5, 2023	Award	2,210	0.00 USD	—	SEC
BERKLEY W R CORPListing on record	Jun 14, 2023	Award	3,479	0.00 USD	—	SEC
PFIZER INCListing on record	Apr 28, 2023	AwardD (derivative)	5,291.69	38.74 USD	$205K	SEC
CARMAX INCListing on record	Jul 5, 2022	Award	1,996	0.00 USD	—	SEC
BERKLEY W R CORPListing on record	Jun 15, 2022	Award	2,995	0.00 USD	—	SEC
Advantage Solutions Inc.Listing on record	May 27, 2022	Award	40,603	0.00 USD	—	SEC
PFIZER INCListing on record	Apr 29, 2022	AwardD (derivative)	4,058.6	50.51 USD	$205K	SEC
CARMAX INCListing on record	Jul 20, 2021	Sell	-12,500	132.02 USD	$1.7M	SEC
CARMAX INCListing on record	Jul 7, 2021	Award	1,308	0.00 USD	—	SEC
PFIZER INCListing on record	Jul 6, 2021	Gift	4,750	0.00 USD	—	SEC
PFIZER INCListing on record	Jul 6, 2021	Gift	-4,750	0.00 USD	—	SEC
BERKLEY W R CORPListing on record	Jun 16, 2021	Award	2,652	0.00 USD	—	SEC
Advantage Solutions Inc.Listing on record	May 28, 2021	Award	14,344	0.00 USD	—	SEC
PFIZER INCListing on record	Apr 23, 2021	AwardD (derivative)	4,981.88	38.64 USD	$192.5K	SEC
Advantage Solutions Inc.Listing on record	Jan 6, 2021	Award	10,356	0.00 USD	—	SEC
PFIZER INCListing on record	Aug 10, 2020	Buy	1,000	38.62 USD	$38.6K	SEC

Company	Filed	Type	Qty	Price	Value · USD	Src
PFIZER INCListing on record	Aug 5, 2026	Buy	39,231	25.46 USD	$998.8K	SEC
BERKLEY W R CORPListing on record	Jun 4, 2026	Award	3,090	0.00 USD	—	SEC
PFIZER INCListing on record	Apr 27, 2026	AwardD (derivative)	7,686.54	26.67 USD	$205K	SEC
BERKLEY W R CORPListing on record	Jun 13, 2025	Award	2,776	0.00 USD	—	SEC
PFIZER INCListing on record	Apr 28, 2025	AwardD (derivative)	8,999	22.78 USD	$205K	SEC
PFIZER INCListing on record	Feb 14, 2025	Buy	19,457	25.65 USD	$499.1K	SEC
CARMAX INCListing on record	Jul 2, 2024	Award	2,598	0.00 USD	—	SEC
BERKLEY W R CORPListing on record	Jun 12, 2024	Award	2,534	0.00 USD	—	SEC
PFIZER INCListing on record	Apr 26, 2024	AwardD (derivative)	8,115.6	25.26 USD	$205K	SEC
CARMAX INCListing on record	Jul 5, 2023	Award	2,210	0.00 USD	—	SEC
BERKLEY W R CORPListing on record	Jun 14, 2023	Award	3,479	0.00 USD	—	SEC
PFIZER INCListing on record	Apr 28, 2023	AwardD (derivative)	5,291.69	38.74 USD	$205K	SEC
CARMAX INCListing on record	Jul 5, 2022	Award	1,996	0.00 USD	—	SEC
BERKLEY W R CORPListing on record	Jun 15, 2022	Award	2,995	0.00 USD	—	SEC
Advantage Solutions Inc.Listing on record	May 27, 2022	Award	40,603	0.00 USD	—	SEC
PFIZER INCListing on record	Apr 29, 2022	AwardD (derivative)	4,058.6	50.51 USD	$205K	SEC
CARMAX INCListing on record	Jul 20, 2021	Sell	-12,500	132.02 USD	$1.7M	SEC
CARMAX INCListing on record	Jul 7, 2021	Award	1,308	0.00 USD	—	SEC
PFIZER INCListing on record	Jul 6, 2021	Gift	4,750	0.00 USD	—	SEC
PFIZER INCListing on record	Jul 6, 2021	Gift	-4,750	0.00 USD	—	SEC
BERKLEY W R CORPListing on record	Jun 16, 2021	Award	2,652	0.00 USD	—	SEC
Advantage Solutions Inc.Listing on record	May 28, 2021	Award	14,344	0.00 USD	—	SEC
PFIZER INCListing on record	Apr 23, 2021	AwardD (derivative)	4,981.88	38.64 USD	$192.5K	SEC
Advantage Solutions Inc.Listing on record	Jan 6, 2021	Award	10,356	0.00 USD	—	SEC
PFIZER INCListing on record	Aug 10, 2020	Buy	1,000	38.62 USD	$38.6K	SEC