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

Polar Asset Management 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
-60,000
Closed -$30.2M – 710
2025
Q4 		$30.2M Buy
+60,000
New +$29.9M 0.38% 57

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

Polar Asset Management Partners's BRK.B Position: Q1 2026 in Review

Polar Asset Management Partners sold out of Berkshire Hathaway Class B (BRK.B) in Q1 2026, closing a stake of 60,000 shares — an estimated $30.2M sold.

Polar Asset Management Partners first reported a position in BRK.B in Q4 2016 and held it in 9 quarters. The position peaked at $30.2M in Q4 2025. 4,856 funds tracked by Wall St. Rank hold BRK.B as of Q1 2026.

  • Polar Asset Management Partners reported no remaining Berkshire Hathaway Class B position as of Q1 2026 after selling out during the quarter.
  • Polar Asset Management Partners sold 60,000 Berkshire Hathaway Class B shares in Q1 2026, an estimated $30.2M.
  • Polar Asset Management Partners first reported a position in Berkshire Hathaway Class B in Q4 2016 and held it in 9 quarters.
  • Polar Asset Management Partners's Berkshire Hathaway Class B position peaked at $30.2M in Q4 2025.
  • 4,856 funds tracked by Wall St. Rank held Berkshire Hathaway Class B as of Q1 2026.

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