Qube Research & Technologies (QRT)
BRK.B icon

Qube Research & Technologies (QRT)’s Berkshire Hathaway Class B BRK.B Stock Holding History

Qube Research & Technologies (QRT)’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 		$86M Sell
179,500
-77,500
-30% -$38M 0.1% 251
2025
Q4 		$129M Buy
257,000
+63,000
+32% +$31.3M 0.13% 169
2025
Q3 		$97.5M Sell
194,000
-17,700
-8% -$8.57M 0.1% 244
2025
Q2 		$103M Sell
211,700
-170,000
-45% -$86.3M 0.1% 247
2025
Q1 		$203M Buy
381,700
+196,100
+106% +$95.3M 0.24% 92
2024
Q4 		$84.1M Buy
185,600
+2,800
+2% +$1.29M 0.11% 228
2024
Q3 		$84.1M Buy
182,800
+13,800
+8% +$6.1M 0.12% 185
2024
Q2 		$68.7M Buy
169,000
+50,000
+42% +$20.4M 0.11% 211
2024
Q1 		$50M Sell
119,000
-76,300
-39% -$30M 0.08% 299
2023
Q4 		$69.7M Buy
195,300
+48,700
+33% +$17.1M 0.14% 184
2023
Q3 		$51.4M Buy
146,600
+41,300
+39% +$14.7M 0.13% 191
2023
Q2 		$35.9M Buy
105,300
+59,700
+131% +$19.5M 0.13% 214
2023
Q1 		$14.1M Buy
45,600
+600
+1% +$185K 0.06% 350
2022
Q4 		$13.9M Hold
45,000
– – 0.07% 380
2022
Q3 		$12M Buy
+45,000
New +$12.8M 0.07% 364

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

Qube Research & Technologies (QRT)'s BRK.B Position: Q1 2026 in Review

Qube Research & Technologies (QRT) reduced its Berkshire Hathaway Class B (BRK.B) stake by 64% in Q1 2026, selling an estimated $240M and leaving 271,539 shares worth $130M. The position accounts for 0.14% of the portfolio, ranked #163.

Qube Research & Technologies (QRT) first reported a position in BRK.B in Q1 2018 and has held it in 28 quarters since. The position peaked at $392M in Q2 2024. 4,854 funds tracked by Wall St. Rank hold BRK.B as of Q1 2026.

  • Qube Research & Technologies (QRT) held 271,539 shares of Berkshire Hathaway Class B worth $130M as of Q1 2026.
  • Qube Research & Technologies (QRT) sold 488,478 Berkshire Hathaway Class B shares in Q1 2026, an estimated $240M.
  • Berkshire Hathaway Class B made up 0.14% of Qube Research & Technologies (QRT)'s portfolio in Q1 2026, its #163 holding.
  • Qube Research & Technologies (QRT) first reported a position in Berkshire Hathaway Class B in Q1 2018 and has held it in 28 quarters since.
  • Qube Research & Technologies (QRT)'s Berkshire Hathaway Class B position peaked at $392M in Q2 2024.
  • 4,854 funds tracked by Wall St. Rank held Berkshire Hathaway Class B as of Q1 2026.

Based on Qube Research & Technologies (QRT)'s 13F filing for Q1 2026, filed 15 May 2026.