OLSON RONALD L

Director at EDISON INTERNATIONAL · on record since Apr 28, 2006
Director at CITY NATIONAL CORP · on record since Aug 23, 2006
Director at Andersen Group Inc. · on record since Dec 22, 2025
Director at BERKSHIRE HATHAWAY INC · on record since Nov 24, 2008
Director at Graham Holdings Co · on record since Jan 3, 2011
Director at Western Asset Investment Grade Income Fund Inc. · on record since Apr 9, 2021
Director at WESTERN ASSET INFLATION-LINKED OPPORTUNITIES & INCOME FUND · on record since Apr 29, 2020
Director at WESTERN ASSET INFLATION-LINKED INCOME FUND · on record since Apr 29, 2020
Director at WESTERN ASSET PREMIER BOND FUND · on record since Dec 27, 2022

Insider trading activity of OLSON RONALD L

Transactions on record: 95; since Apr 29, 2004

Open-market buys: 28; $3.4M

Open-market sells: 7; $996.2K

Companies traded: 7; last filing Dec 22, 2025

Figures computed from official regulatory filings — .

Companies where OLSON RONALD L has traded

Andersen Group Inc.1 tx · $126.3K · Dec 22, 2025
BERKSHIRE HATHAWAY INC26 tx · $9.8M · Oct 30, 2023
WESTERN ASSET PREMIER BOND FUND2 tx · $425.4K · Jan 24, 2023
Western Asset Investment Grade Income Fund Inc.1 tx · $15.8K · Apr 9, 2021
EDISON INTERNATIONAL28 tx · $99.9K · Apr 18, 2014
CITY NATIONAL CORP35 tx · $1.8M · Feb 19, 2014
2 tx · $404.4K · Jan 3, 2011

Track record of OLSON RONALD L

Statistical track record

Free account

Open-market buys: 37

Last buy: Dec 18, 2025

Win rates, median returns and the proven-insider analysis come with a free account.

Transaction history of OLSON RONALD L

Co-insiders of OLSON RONALD L

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Andersen Group Inc.Listing unverified	Dec 22, 2025	Buy	7,896	16.00 USD	$126.3K	conv 61ClusterFirst in 12mo	SEC
BERKSHIRE HATHAWAY INCListing on record	Oct 30, 2023	Other	-781	—	n/a (No price was disclosed in the filing)		SEC
BERKSHIRE HATHAWAY INCListing on record	Oct 30, 2023	Other	-1,562	—	n/a (No price was disclosed in the filing)		SEC
BERKSHIRE HATHAWAY INCListing on record	Oct 30, 2023	Other	1,500	—	n/a (No price was disclosed in the filing)		SEC
BERKSHIRE HATHAWAY INCListing on record	Oct 30, 2023	OtherD (derivative)	-24	—	n/a (No price was disclosed in the filing)		SEC
BERKSHIRE HATHAWAY INCListing on record	Oct 30, 2023	OtherD (derivative)	-1	—	n/a (No price was disclosed in the filing)		SEC
WESTERN ASSET PREMIER BOND FUNDListing unverified	Jan 24, 2023	Sell	-18,000	11.20 USD	$201.6K		SEC
WESTERN ASSET PREMIER BOND FUNDListing unverified	Dec 27, 2022	Buy	20,000	11.19 USD	$223.8K	conv 27	SEC
BERKSHIRE HATHAWAY INCListing on record	Jul 7, 2022	Buy	895	274.62 USD	$245.8K	conv 36First in 12mo	SEC
BERKSHIRE HATHAWAY INCListing on record	Jul 7, 2022	Buy	1,515	274.19 USD	$415.4K	conv 40First in 12mo	SEC
Western Asset Investment Grade Income Fund Inc.Listing unverified	Apr 9, 2021	Sell	-1,000	15.84 USD	$15.8K		SEC
BERKSHIRE HATHAWAY INCListing on record	Jan 6, 2021	Buy	4,000	222.33 USD	$889.3K	conv 57First in 12mo	SEC
BERKSHIRE HATHAWAY INCListing on record	Mar 2, 2018	GiftD (derivative)	-21	—	n/a (No price was disclosed in the filing)		SEC
BERKSHIRE HATHAWAY INCListing on record	Mar 2, 2018	Gift	-2,103	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
BERKSHIRE HATHAWAY INCListing on record	Mar 2, 2018	Other	3,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
BERKSHIRE HATHAWAY INCListing on record	Mar 2, 2018	OtherD (derivative)	-2	—	n/a (No price was disclosed in the filing)		SEC
BERKSHIRE HATHAWAY INCListing on record	Mar 16, 2016	BuyD (derivative)	10	210,543.09 USD	$2.1M	Unusual sizeFirst in 12mo	SEC
BERKSHIRE HATHAWAY INCListing on record	Dec 22, 2014	Sell	-65	152.07 USD	$9.9K		SEC
EDISON INTERNATIONALListing on record	Apr 18, 2014	Gift	1,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
EDISON INTERNATIONALListing on record	Apr 18, 2014	Gift	-1,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
EDISON INTERNATIONALListing on record	Apr 2, 2014	Exercise	1,000	22.70 USD	$22.7K	Unusual size	SEC
EDISON INTERNATIONALListing on record	Apr 2, 2014	ExerciseD (derivative)	-1,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
CITY NATIONAL CORPListing unverified	Feb 19, 2014	Exercise	500	1.00 USD	$500		SEC
CITY NATIONAL CORPListing unverified	Feb 19, 2014	ExerciseD (derivative)	-500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
EDISON INTERNATIONALListing on record	Apr 29, 2013	AwardD (derivative)	2,069	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Andersen Group Inc.Listing unverified	Dec 22, 2025	Buy	7,896	16.00 USD	$126.3K	conv 61ClusterFirst in 12mo	SEC
BERKSHIRE HATHAWAY INCListing on record	Oct 30, 2023	Other	-781	—	n/a (No price was disclosed in the filing)		SEC
BERKSHIRE HATHAWAY INCListing on record	Oct 30, 2023	Other	-1,562	—	n/a (No price was disclosed in the filing)		SEC
BERKSHIRE HATHAWAY INCListing on record	Oct 30, 2023	Other	1,500	—	n/a (No price was disclosed in the filing)		SEC
BERKSHIRE HATHAWAY INCListing on record	Oct 30, 2023	OtherD (derivative)	-24	—	n/a (No price was disclosed in the filing)		SEC
BERKSHIRE HATHAWAY INCListing on record	Oct 30, 2023	OtherD (derivative)	-1	—	n/a (No price was disclosed in the filing)		SEC
WESTERN ASSET PREMIER BOND FUNDListing unverified	Jan 24, 2023	Sell	-18,000	11.20 USD	$201.6K		SEC
WESTERN ASSET PREMIER BOND FUNDListing unverified	Dec 27, 2022	Buy	20,000	11.19 USD	$223.8K	conv 27	SEC
BERKSHIRE HATHAWAY INCListing on record	Jul 7, 2022	Buy	895	274.62 USD	$245.8K	conv 36First in 12mo	SEC
BERKSHIRE HATHAWAY INCListing on record	Jul 7, 2022	Buy	1,515	274.19 USD	$415.4K	conv 40First in 12mo	SEC
Western Asset Investment Grade Income Fund Inc.Listing unverified	Apr 9, 2021	Sell	-1,000	15.84 USD	$15.8K		SEC
BERKSHIRE HATHAWAY INCListing on record	Jan 6, 2021	Buy	4,000	222.33 USD	$889.3K	conv 57First in 12mo	SEC
BERKSHIRE HATHAWAY INCListing on record	Mar 2, 2018	GiftD (derivative)	-21	—	n/a (No price was disclosed in the filing)		SEC
BERKSHIRE HATHAWAY INCListing on record	Mar 2, 2018	Gift	-2,103	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
BERKSHIRE HATHAWAY INCListing on record	Mar 2, 2018	Other	3,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
BERKSHIRE HATHAWAY INCListing on record	Mar 2, 2018	OtherD (derivative)	-2	—	n/a (No price was disclosed in the filing)		SEC
BERKSHIRE HATHAWAY INCListing on record	Mar 16, 2016	BuyD (derivative)	10	210,543.09 USD	$2.1M	Unusual sizeFirst in 12mo	SEC
BERKSHIRE HATHAWAY INCListing on record	Dec 22, 2014	Sell	-65	152.07 USD	$9.9K		SEC
EDISON INTERNATIONALListing on record	Apr 18, 2014	Gift	1,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
EDISON INTERNATIONALListing on record	Apr 18, 2014	Gift	-1,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
EDISON INTERNATIONALListing on record	Apr 2, 2014	Exercise	1,000	22.70 USD	$22.7K	Unusual size	SEC
EDISON INTERNATIONALListing on record	Apr 2, 2014	ExerciseD (derivative)	-1,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
CITY NATIONAL CORPListing unverified	Feb 19, 2014	Exercise	500	1.00 USD	$500		SEC
CITY NATIONAL CORPListing unverified	Feb 19, 2014	ExerciseD (derivative)	-500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
EDISON INTERNATIONALListing on record	Apr 29, 2013	AwardD (derivative)	2,069	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC