GI
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GAMMA Investing’s White Mountains Insurance WTM Stock Holding History

GAMMA Investing’s Portfolio WTM Stock Details WTM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q3 		$580K Buy
289
+40
+16% +$84.7K 0.02% 626
2026
Q2 		$516K Buy
249
+47
+23% +$101K 0.02% 638
2026
Q1 		$444K Buy
202
+3
+2% +$6.42K 0.02% 624
2025
Q4 		$414K Buy
199
+16
+9% +$31.3K 0.02% 608
2025
Q3 		$306K Buy
183
+1
+0.5% +$1.78K 0.02% 705
2025
Q2 		$327K Buy
182
+106
+139% +$189K 0.02% 639
2025
Q1 		$146K Buy
76
+23
+43% +$43.3K 0.01% 954
2024
Q4 		$103K Buy
53
+4
+8% +$7.56K 0.01% 1097
2024
Q3 		$83.1K Buy
49
+25
+104% +$43.6K 0.01% 1122
2024
Q2 		$43.6K Buy
24
+3
+14% +$5.31K 0.01% 1300
2024
Q1 		$37.7K Hold
21
– – 0.01% 1213
2023
Q4 		$33.1K Buy
+21
New +$31.2K 0.01% 1171

Other funds holding WTM

RP
Reinhart Partners Mequon, Wisconsin $4.11B AUM 38.38% 1-Year Est. Return
DM
Diversified Management Milwaukee, Wisconsin $573M AUM 24.64% 1-Year Est. Return
FFA
Farther Finance Advisors San Francisco, California $14.2B AUM 18.33% 1-Year Est. Return
LWAM
Legacy Wealth Asset Management Woodbury, Minnesota $456M AUM 31.62% 1-Year Est. Return
EB
Eastern Bank Boston, Massachusetts $6.58B AUM 23.57% 1-Year Est. Return
SC
Steph & Co Marinette, Wisconsin $392M AUM 12.64% 1-Year Est. Return
DCM
Davis Capital Management Jacksonville, Florida $167M AUM 17.17% 1-Year Est. Return
VCM
Versant Capital Management Phoenix, Arizona $1.17B AUM 28.44% 1-Year Est. Return
EWP
Elevation Wealth Partners Santa Rosa, California $356M AUM 17.04% 1-Year Est. Return
MAM
Marquette Asset Management Minneapolis, Minnesota $766M AUM 16.04% 1-Year Est. Return

GAMMA Investing's WTM Position: Q3 2026 in Review

GAMMA Investing increased its White Mountains Insurance (WTM) stake by 16% in Q3 2026, buying an estimated $84.7K and bringing the position to 289 shares worth $580K. The position accounts for 0.02% of the portfolio, ranked #626.

GAMMA Investing first reported a position in WTM in Q4 2023 and has held it in 12 quarters since. 12 funds tracked by Wall St. Rank hold WTM as of Q3 2026.

  • GAMMA Investing held 289 shares of White Mountains Insurance worth $580K as of Q3 2026.
  • GAMMA Investing bought 40 White Mountains Insurance shares in Q3 2026, an estimated $84.7K.
  • White Mountains Insurance made up 0.02% of GAMMA Investing's portfolio in Q3 2026, its #626 holding.
  • GAMMA Investing first reported a position in White Mountains Insurance in Q4 2023 and has held it in 12 quarters since.
  • 12 funds tracked by Wall St. Rank held White Mountains Insurance as of Q3 2026.

Based on GAMMA Investing's 13F filing for Q3 2026, filed 8 Oct 2026.