Ostrum Asset Management Berkshire Hathaway Inc Class B Transaction History

Ostrum Asset Management

$2.23 Trillion
Q3 2025

A detailed history of Ostrum Asset Management transactions in Berkshire Hathaway Inc Class B stock. As of the latest transaction made, Ostrum Asset Management holds 59,683 shares of BRK-B stock, worth $30.4 Million. This represents 1.35% of its overall portfolio holdings.

Number of Shares

59,683

Previous 90,706 34.2%

Holding current value

$30.4 Million

Previous $44.1 Billion 31.9%

% of portfolio

1.35%

Previous 2.06%

11 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 14, 2025	SELL	$459.11 - $506.91 $14.2 Million - $15.7 Million	-31,023 Reduced 34.2%	59,683 $30 Billion
Q2 2025 Aug 13, 2025	SELL	$483.48 - $539.8 $265,914 - $296,890	-550 Reduced 0.6%	90,706 $44.1 Billion
Q1 2025 May 14, 2025	BUY	$442.66 - $534.52 $36 Million - $43.5 Million	81,385 Added 824.49%	91,256 $48.6 Billion
Q4 2024 Feb 13, 2025	BUY	$442.29 - $483.08 $941,193 - $1.03 Million	2,128 Added 27.48%	9,871 $4.47 Billion
Q3 2024 Nov 13, 2024	BUY	$405.19 - $478.57 $1.4 Million - $1.65 Million	3,457 Added 80.66%	7,743 $3.56 Billion
Q2 2024 Aug 13, 2024	BUY	$396.73 - $420.24 $140,839 - $149,185	355 Added 9.03%	4,286 $1.74 Billion
Q1 2024 May 13, 2024	BUY	$359.29 - $420.52 $19,401 - $22,708	54 Added 1.39%	3,931 $1.65 Billion
Q4 2023 Feb 13, 2024	SELL	$331.71 - $362.68 $2.29 Million - $2.5 Million	-6,895 Reduced 64.01%	3,877 $1.38 Billion
Q3 2023 Nov 14, 2023	SELL	$340.9 - $370.48 $272,038 - $295,643	-798 Reduced 6.9%	10,772 $3.77 Billion
Q2 2023 Aug 11, 2023	SELL	$309.07 - $341.0 $69,231 - $76,384	-224 Reduced 1.9%	11,570 $3.95 Billion
Q1 2023 May 12, 2023	BUY	$293.51 - $320.37 $3.46 Million - $3.78 Million	11,794 New	11,794 $3.64 Billion

Others Institutions Holding BRK-B

# of Institutions

5,124

Shares Held

882M

Call Options Held

19.9M

Put Options Held

15.3M

View Full List

About BERKSHIRE HATHAWAY INC - Class B

Ticker BRK-B
Exchange NYSE
Sector Financial Services
Industry Insurance—Diversified
Shares Outstandng 1,301,129,984
Market Cap $662B

More about BRK-B

Track This Portfolio

Portfolio Update

Get notified when there are updates to the investment portfolio of Ostrum Asset Management, based on Form 13F filings with the SEC.

News

Stay updated on Ostrum Asset Management with notifications on news.

Account

Ostrum Asset Management Berkshire Hathaway Inc Class B Transaction History