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Columbia Asset Management’s Berkshire Hathaway Class B BRK.B Stock Holding History

Columbia Asset Management’s Portfolio BRK.B Stock Details BRK.B Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q2 		– Sell
-385,000
Closed -$380K – 180
2025
Q1 		$380K Sell
385,000
-190,000
-33% -$92.4M 0.07% 149
2024
Q4 		$566K Buy
+575,000
New +$265M 0.1% 122

Other funds holding BRK.B

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return
Mitsubishi UFJ Asset Management
Mitsubishi UFJ Asset Management Tokyo, Japan $180B AUM 37.51% 1-Year Est. Return
LPL Financial
LPL Financial San Diego, California $445B AUM 25.58% 1-Year Est. Return
Assenagon Asset Management
Assenagon Asset Management Senningerberg, Luxembourg $80.2B AUM 50.57% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return
Deutsche Bank
Deutsche Bank Frankfurt Am Main Ge, Germany $344B AUM 42.99% 1-Year Est. Return
HighTower Advisors
HighTower Advisors Chicago, Illinois $103B AUM 28.65% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $204B AUM 27.99% 1-Year Est. Return

Columbia Asset Management's BRK.B Position: Q2 2026 in Review

Columbia Asset Management opened a new position in Berkshire Hathaway Class B (BRK.B) in Q2 2026: 33,730 shares worth $16.9M. The stake represents 2.93% of the portfolio and ranks #8 among its holdings. This is a return to the name: Columbia Asset Management previously reported a position in BRK.B as recently as Q4 2025.

Columbia Asset Management first reported a position in BRK.B in Q4 2013 and has held it in 42 quarters since. The position peaked at $18.7M in Q4 2025. 3,317 funds tracked by Wall St. Rank hold BRK.B as of Q2 2026.

  • Columbia Asset Management held 33,730 shares of Berkshire Hathaway Class B worth $16.9M as of Q2 2026.
  • Berkshire Hathaway Class B was a new Columbia Asset Management position in Q2 2026.
  • Berkshire Hathaway Class B made up 2.93% of Columbia Asset Management's portfolio in Q2 2026, its #8 holding.
  • Columbia Asset Management first reported a position in Berkshire Hathaway Class B in Q4 2013 and has held it in 42 quarters since.
  • Columbia Asset Management's Berkshire Hathaway Class B position peaked at $18.7M in Q4 2025.
  • 3,317 funds tracked by Wall St. Rank held Berkshire Hathaway Class B as of Q2 2026.

Based on Columbia Asset Management's 13F filing for Q2 2026, filed 21 Jul 2026.