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Mattern Capital Management’s Chubb CB Stock Holding History

Mattern Capital Management’s Portfolio CB Stock Details CB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$12.3M Sell
35,965
-156
-0.4% -$50.9K 1.43% 11
2026
Q1 		$11.8M Sell
36,121
-253
-0.7% -$81.2K 1.41% 15
2025
Q4 		$11.4M Buy
36,374
+373
+1% +$109K 1.34% 13
2025
Q3 		$10.2M Sell
36,001
-332
-0.9% -$91.4K 1.19% 25
2025
Q2 		$10.5M Sell
36,333
-49
-0.1% -$14.1K 1.26% 19
2025
Q1 		$11M Sell
36,382
-2,101
-5% -$584K 1.4% 11
2024
Q4 		$10.6M Buy
38,483
+28
+0.1% +$7.95K 1.39% 13
2024
Q3 		$11.1M Sell
38,455
-383
-1% -$105K 1.4% 15
2024
Q2 		$9.91M Sell
38,838
-405
-1% -$104K 1.37% 19
2024
Q1 		$10.2M Sell
39,243
-286
-0.7% -$70.3K 1.38% 17
2023
Q4 		$8.93M Sell
39,529
-13
-0% -$2.84K 1.3% 26
2023
Q3 		$8.23M Buy
39,542
+2,084
+6% +$421K 1.33% 18
2023
Q2 		$7.21M Buy
37,458
+2,007
+6% +$393K 1.17% 29
2023
Q1 		$6.88M Buy
35,451
+1,449
+4% +$305K 1.21% 27
2022
Q4 		$7.5M Sell
34,002
-1,246
-4% -$259K 1.39% 11
2022
Q3 		$6.41M Buy
35,248
+163
+0.5% +$31K 1.34% 15
2022
Q2 		$6.9M Sell
35,085
-2,157
-6% -$444K 1.36% 12
2022
Q1 		$7.97M Buy
37,242
+144
+0.4% +$29.3K 1.42% 12
2021
Q4 		$7.17M Sell
37,098
-954
-3% -$179K 1.25% 27
2021
Q3 		$6.6M Buy
38,052
+374
+1% +$65.6K 1.3% 22
2021
Q2 		$5.99M Buy
37,678
+1,199
+3% +$199K 1.18% 36
2021
Q1 		$5.76M Buy
36,479
+337
+0.9% +$54.3K 1.25% 27
2020
Q4 		$5.56M Buy
36,142
+385
+1% +$54K 1.32% 22
2020
Q3 		$4.15M Buy
35,757
+1,078
+3% +$135K 1.08% 55
2020
Q2 		$4.39M Buy
34,679
+6,621
+24% +$767K 1.27% 28
2020
Q1 		$3.13M Buy
28,058
+2,785
+11% +$399K 1.07% 57
2019
Q4 		$3.93M Buy
+25,273
New +$3.87M 1.09% 46

Other funds holding CB

Berkshire Hathaway
Berkshire Hathaway Omaha, Nebraska $299B AUM 27.55% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
GQG Partners
GQG Partners Ft. Lauderdale, Florida $53.8B AUM 19.23% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

Mattern Capital Management's CB Position: Q2 2026 in Review

Mattern Capital Management reduced its Chubb (CB) stake by 0.43% in Q2 2026, selling an estimated $50.9K and leaving 35,965 shares worth $12.3M. The position accounts for 1.43% of the portfolio, ranked #11.

Mattern Capital Management first reported a position in CB in Q4 2019 and has held it in 27 quarters since. 2,156 funds tracked by Wall St. Rank hold CB as of Q2 2026.

  • Mattern Capital Management held 35,965 shares of Chubb worth $12.3M as of Q2 2026.
  • Mattern Capital Management sold 156 Chubb shares in Q2 2026, an estimated $50.9K.
  • Chubb made up 1.43% of Mattern Capital Management's portfolio in Q2 2026, its #11 holding.
  • Mattern Capital Management first reported a position in Chubb in Q4 2019 and has held it in 27 quarters since.
  • 2,156 funds tracked by Wall St. Rank held Chubb as of Q2 2026.

Based on Mattern Capital Management's 13F filing for Q2 2026, filed 24 Jul 2026.