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BRK.B icon

LMR Partners’s Berkshire Hathaway Class B BRK.B Stock Holding History

LMR Partners’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
2026
Q1 		– Sell
-4,100
Closed -$2.06M – 1487
2025
Q4 		$2.06M Hold
4,100
– – ﹤0.01% 802
2025
Q3 		$2.06M Buy
+4,100
New +$1.99M 0.01% 721

Other funds holding BRK.B

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Gates Foundation Trust
Gates Foundation Trust Kirkland, Washington $31.7B AUM 20.52% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

LMR Partners's BRK.B Position: Q1 2026 in Review

LMR Partners opened a new position in Berkshire Hathaway Class B (BRK.B) in Q1 2026: 3,399 shares worth $1.63M. The stake represents ﹤0.01% of the portfolio and ranks #887 among its holdings. This is a return to the name: LMR Partners previously reported a position in BRK.B as recently as Q1 2022.

LMR Partners first reported a position in BRK.B in Q2 2014 and has held it in 15 quarters since. The position peaked at $32.1M in Q1 2018. 4,854 funds tracked by Wall St. Rank hold BRK.B as of Q1 2026.

  • LMR Partners held 3,399 shares of Berkshire Hathaway Class B worth $1.63M as of Q1 2026.
  • Berkshire Hathaway Class B was a new LMR Partners position in Q1 2026.
  • Berkshire Hathaway Class B made up ﹤0.01% of LMR Partners's portfolio in Q1 2026, its #887 holding.
  • LMR Partners first reported a position in Berkshire Hathaway Class B in Q2 2014 and has held it in 15 quarters since.
  • LMR Partners's Berkshire Hathaway Class B position peaked at $32.1M in Q1 2018.
  • 4,854 funds tracked by Wall St. Rank held Berkshire Hathaway Class B as of Q1 2026.

Based on LMR Partners's 13F filing for Q1 2026, filed 15 May 2026.