Boston Partners White Mountains Insurance Group LTD Transaction History

Boston Partners

$83.6 Billion
Q2 2025

A detailed history of Boston Partners transactions in White Mountains Insurance Group LTD stock. As of the latest transaction made, Boston Partners holds 89,170 shares of WTM stock, worth $153 Million. This represents 0.19% of its overall portfolio holdings.

Number of Shares

89,170

Previous 85,236 4.62%

Holding current value

$153 Million

Previous $164 Million 2.45%

% of portfolio

0.19%

Previous 0.21%

34 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q2 2025 Aug 12, 2025	BUY	$1699.35 - $1901.99 $380,654 - $426,045	224 Added 0.25%	89,394 $161 Million
Q2 2025 Aug 07, 2025	BUY	$1699.35 - $1901.99 $6.69 Million - $7.48 Million	3,934 Added 4.62%	89,170 $160 Million
Q1 2025 May 12, 2025	SELL	$1818.58 - $1983.07 $380,083 - $414,461	-209 Reduced 0.24%	85,236 $164 Million
Q4 2024 Feb 10, 2025	BUY	$1755.01 - $2015.0 $610,743 - $701,220	348 Added 0.41%	85,445 $166 Million
Q3 2024 Nov 12, 2024	SELL	$1671.79 - $1844.24 $4.3 Million - $4.75 Million	-2,574 Reduced 2.94%	85,097 $144 Million
Q2 2024 Aug 13, 2024	SELL	$1688.8 - $1871.4 $4.94 Million - $5.47 Million	-2,923 Reduced 3.23%	87,671 $159 Million
Q1 2024 May 13, 2024	SELL	$1475.0 - $1841.88 $2.89 Million - $3.61 Million	-1,958 Reduced 2.12%	90,594 $163 Million
Q4 2023 Feb 07, 2024	SELL	$1425.4 - $1551.29 $31.3 Million - $34 Million	-21,947 Reduced 19.17%	92,552 $139 Million
Q3 2023 Nov 07, 2023	SELL	$1380.13 - $1607.11 $4.84 Million - $5.63 Million	-3,506 Reduced 2.97%	114,499 $171 Million
Q2 2023 Aug 10, 2023	SELL	$1319.05 - $1525.0 $9.94 Million - $11.5 Million	-7,532 Reduced 6.0%	118,005 $164 Million
Q1 2023 May 09, 2023	BUY	$1322.18 - $1551.67 $1.61 Million - $1.89 Million	1,217 Added 0.98%	125,537 $173 Million
Q4 2022 Feb 07, 2023	SELL	$1290.95 - $1422.81 $4.77 Million - $5.25 Million	-3,692 Reduced 2.88%	124,320 $176 Million
Q3 2022 Nov 09, 2022	SELL	$1176.95 - $1393.48 $6.12 Million - $7.25 Million	-5,203 Reduced 3.91%	128,012 $168 Million
Q2 2022 Aug 10, 2022	SELL	$1041.57 - $1282.66 $2.28 Million - $2.81 Million	-2,193 Reduced 1.62%	133,215 $166 Million
Q1 2022 May 10, 2022	SELL	$1006.37 - $1136.24 $2.44 Million - $2.76 Million	-2,428 Reduced 1.76%	135,408 $154 Million
Q4 2021 Feb 04, 2022	SELL	$986.9 - $1127.1 $5.92 Million - $6.76 Million	-5,996 Reduced 4.17%	137,836 $140 Million
Q3 2021 Nov 05, 2021	BUY	$1059.17 - $1174.26 $3.57 Million - $3.96 Million	3,373 Added 2.4%	143,832 $154 Million
Q2 2021 Aug 12, 2021	BUY	$1110.64 - $1237.15 $3.63 Million - $4.04 Million	3,264 Added 2.38%	140,459 $161 Million
Q1 2021 May 10, 2021	BUY	$1010.0 - $1267.52 $5.25 Million - $6.59 Million	5,199 Added 3.94%	137,195 $154 Million
Q4 2020 Feb 04, 2021	SELL	$785.87 - $1008.33 $66,798 - $85,708	-85 Reduced 0.06%	131,996 $132 Million
Q3 2020 Nov 13, 2020	SELL	$757.0 - $955.48 $4.08 Million - $5.15 Million	-5,387 Reduced 3.92%	132,081 $103 Million
Q2 2020 Aug 12, 2020	SELL	$825.09 - $973.0 $5.73 Million - $6.76 Million	-6,943 Reduced 4.81%	137,468 $122 Million
Q1 2020 May 13, 2020	SELL	$696.04 - $1164.52 $2.04 Million - $3.41 Million	-2,926 Reduced 1.99%	144,411 $131 Million
Q4 2019 Feb 05, 2020	SELL	$1058.42 - $1129.11 $11 Million - $11.7 Million	-10,402 Reduced 6.59%	147,337 $164 Million
Q3 2019 Nov 20, 2019	SELL	$1036.45 - $1093.91 $7.54 Million - $7.96 Million	-7,276 Reduced 4.41%	157,739 $170 Million
Q3 2019 Nov 08, 2019	BUY	$1036.45 - $1093.91 $95,353 - $100,639	92 Added 0.06%	165,015 $169 Million
Q2 2019 Aug 09, 2019	SELL	$911.09 - $1038.2 $2.12 Million - $2.42 Million	-2,329 Reduced 1.39%	164,923 $169 Million
Q1 2019 May 03, 2019	SELL	$850.75 - $954.48 $6.89 Million - $7.73 Million	-8,095 Reduced 4.62%	167,252 $155 Million
Q4 2018 Feb 07, 2019	BUY	$834.13 - $933.13 $10.6 Million - $11.8 Million	12,696 Added 7.81%	175,347 $150 Million
Q3 2018 Nov 14, 2018	BUY	$902.72 - $979.01 $2.13 Million - $2.31 Million	2,361 Added 1.47%	162,651 $152 Million
Q2 2018 Aug 03, 2018	BUY	$806.17 - $925.57 $1.58 Million - $1.81 Million	1,959 Added 1.24%	160,290 $145 Million
Q1 2018 May 04, 2018	SELL	$789.05 - $853.12 $2.47 Million - $2.67 Million	-3,128 Reduced 1.94%	158,331 $130 Million
Q4 2017 Feb 01, 2018	BUY	$844.0 - $895.9 $26.6 Million - $28.3 Million	31,537 Added 24.27%	161,459 $137 Million
Q3 2017 Nov 02, 2017	BUY	$842.87 - $874.66 $110 Million - $114 Million	129,922	129,922 $111 Million

Others Institutions Holding WTM

# of Institutions

362

Shares Held

2.55M

Call Options Held

Put Options Held

View Full List

About WHITE MOUNTAINS INSURANCE GROUP LTD

Ticker WTM
Exchange NYSE
Sector Financial Services
Industry Insurance—Property & Casualty
Shares Outstandng 2,576,230
Market Cap $4.42B
Description
White Mountains Insurance Group, Ltd., through its subsidiaries, provides insurance and other financial services in the United States. The company operates through five segments: HG Global/BAM, Ark, NSM, Kudu, and Other Operations. The HG Global/BAM segment provides insurance on municipal bonds issued to finance public purposes, such as schools,...

More about WTM

Track This Portfolio

Portfolio Update

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

News

Stay updated on Boston Partners with notifications on news.

Account