WHITE MOUNTAINS INSURANCE GROUP LTD - COMMON (WTM)

CUSIP: G9618E107

Q3 2021 13F Holders as of 30 Sep 2021

Security identity
Security type / class
Equity / COMMON
Shares outstanding
2,481,286
Holder snapshot
Total 13F shares
2,671,067
Share change
-33,767
Total reported value
$2,857,370,130
Reported price per share
$1069.62
Number of holders
230
Value change
-$38,324,659
Number of buys
89
Number of sells
98

Security key

G9618E107

Report period

Q3 2021

Institutions

230

Top holders

10

WTM full security history Ownership snapshot Full 13F holder table Newer quarter: Q4 2021 Previous quarter: Q2 2021 WHITE MOUNTAINS INSURANCE GROUP LTD SEC filings WHITE MOUNTAINS INSURANCE GROUP LTD company facts WHITE MOUNTAINS INSURANCE GROUP LTD 13D/G history

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Ownership snapshot

Top reported holders of WTM - WHITE MOUNTAINS INSURANCE GROUP LTD - COMMON (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Lead holder
VANGUARD GROUP INC
13D/G signal
—
Evidence rows
15
Latest as of
30 Jun 2021
13F Lead comparable stake: 12% Showing 1-6 of 15 holder rows.
Holder Evidence Ownership % Position 12M Net Δ As of
VANGUARD GROUP INC
13F
Company
13F
12%
$332,141,000
289,314 shares
 — 30 Jun 2021
WELLINGTON MANAGEMENT GROUP LLP
13F
Company
13F
9.5%
$271,701,000
236,668 shares
 — 30 Jun 2021
ATLANTA CAPITAL MANAGEMENT CO L L C
13F
Company
13F
7.9%
$223,834,000
194,972 shares
 — 30 Jun 2021
River Road Asset Management, LLC
13F
Company
13F
6.7%
$191,631,000
166,922 shares
 — 30 Jun 2021
DIMENSIONAL FUND ADVISORS LP
13F
Company
13F
5.8%
$164,825,000
143,572 shares
 — 30 Jun 2021
Boston Partners
13F
Company
13F
5.7%
$161,423,000
140,459 shares
 — 30 Jun 2021
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2021

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
230
Shares
2,671,067
Rows available
230
Investor Option Weight % Change % Reported value * Price Shares Share Change Activity Report Period

* Reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that failed the local validity check.

Compare Q3 2021 vs Q2 2021 Across Filers

Q2 2021 holders
232
Q3 2021 holders
230
Holder diff
-2
Investor Q2 2021 Shares Q3 2021 Shares Share Diff Share Chg % Q2 2021 value Q3 2021 value Value change Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .