WHITE MTNS INS GROUP LTD

$WTM
Smart money positioned

7 of the Top-200 alpha managers hold $WTM as of the latest 13F snapshot.

13F holders
348
Insider buys · 90d
0
Congress · 90d
0

Smart Money · top-200 alpha cohort

7 holders · Q1 2026

$WTM is held by 7 managers from the Top-Performer cohort as of Q1 2026. Position weights range from 0.00% to 3.00%, with an average of 0.44% of portfolio. Largest holder: River Road Asset Management, LLC at 3.00%. A weekly Smart-Money commentary for this ticker has not been generated yet this batch — the table below shows the full cohort positioning.

Smart Money shows holdings from our Top-Performer cohort — the 200 highest-alpha manager_13f funds in our universe. Position weight (current quarter) and QoQ delta versus prior quarter. α is the manager's annual alpha vs benchmark.

Institutional holders

Top 10 of 348 · Source: 13F-HR
01
Westend Capital Management, LLC
3.00% of portfolio
120,519 sh
02
Generation Investment Management LLP
0.13% of portfolio
108,024 sh
03
Turn8 Private Wealth Inc.
2.61% of portfolio
104,857 sh
04
California State Teachers Retirement System
0.77% of portfolio
104,561 sh
05
General American Investors Co. Inc.
2.32% of portfolio
85,066 sh
06
Cacti Asset Management LLC
19.88% of portfolio
78,795 sh
07
Rice Hall James & Associates, LLC
0.77% of portfolio
57,131 sh
08
State Street
50,663 sh
09
Axa S.a.
49,158 sh
10
Roberts Capital Advisors, LLC
0.06% of portfolio
41,513 sh
See all 348 13F holders · Pro →

Insider activity · last 90 days

4 transactions · 3 filers
19 Dec 2025
Rountree George Manning
▼ SOLD
5,000
$2,050.00
S
19 Dec 2025
Campbell Reid Tarlton
▼ SOLD
5,000
S
19 Dec 2025
Campbell Reid Tarlton
▼ SOLD
5,000
$2,050.00
S
16 Dec 2025
Gelston Philip A
▼ SOLD
165
$2,048.51
S

Transaction codes: P open-market purchase · S sale · M option exercise · A grant · F tax-withhold sale. Insider names link to each individual's expert page.

Congress trades · last 90 days

7 disclosures · STOCK Act
House · Texas · Traded Sep 22
BOUGHT
$15K–$50K
Oct 10STOCK
House · Texas · Traded Aug 21
SOLD
$1K–$15K
Sep 12STOCK
House · Texas · Traded Aug 20
BOUGHT
$15K–$50K
Sep 12STOCK
House · Arkansas · Traded Jun 23
BOUGHT
$50K–$100K
Jul 24STOCK
House · Texas · Traded Jan 23
BOUGHT
$15K–$50K
Feb 11STOCK
House · Texas · Traded Aug 26
SOLD
$1K–$15K
Sep 16STOCK
House · Texas · Traded Aug 26
SOLD
$1K–$15K
Sep 16STOCK

Source data: SEC EDGAR · 13F-HR · Form 4 · U.S. House Clerk PTR (disclosures-clerk.house.gov) · Senate eFD (senate.gov) · Last refreshed 04:51 UTC.