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LMR Partners’s Ambarella AMBA Stock Holding History

LMR Partners’s Portfolio AMBA Stock Details AMBA Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-150,000
Closed -$9.91M – 1434
2025
Q2 		$9.91M Buy
+150,000
New +$7.95M 0.07% 292
2025
Q1 		– Sell
-3,000
Closed -$218K – 1349
2024
Q4 		$218K Buy
+3,000
New +$191K ﹤0.01% 946
2024
Q3 		– Sell
-175,000
Closed -$9.44M – 1265
2024
Q2 		$9.44M Buy
+175,000
New +$8.69M 0.08% 221
2023
Q1 		– Sell
-200,000
Closed -$16.4M – 1017
2022
Q4 		$16.4M Buy
200,000
+38,168
+24% +$2.54M 0.29% 89
2022
Q3 		$9.09M Buy
+161,832
New +$12M 0.17% 150

Other funds holding AMBA

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
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
JCAM
Jericho Capital Asset Management New York $12.1B AUM 109.57% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $36.7B AUM 74.15% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Manulife (Manufacturers Life Insurance)
Manulife (Manufacturers Life Insurance) Canada, Ontario, Canada $128B AUM 35.83% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Barclays
Barclays London, United Kingdom $521B AUM 51.41% 1-Year Est. Return

LMR Partners's AMBA Position: Q3 2025 in Review

LMR Partners sold out of Ambarella (AMBA) in Q3 2025, closing a stake of 150,000 shares — an estimated $9.91M sold.

LMR Partners first reported a position in AMBA in Q3 2022 and held it in 5 quarters. The position peaked at $16.4M in Q4 2022. 329 funds tracked by Wall St. Rank hold AMBA as of Q3 2025.

  • LMR Partners reported no remaining Ambarella position as of Q3 2025 after selling out during the quarter.
  • LMR Partners sold 150,000 Ambarella shares in Q3 2025, an estimated $9.91M.
  • LMR Partners first reported a position in Ambarella in Q3 2022 and held it in 5 quarters.
  • LMR Partners's Ambarella position peaked at $16.4M in Q4 2022.
  • 329 funds tracked by Wall St. Rank held Ambarella as of Q3 2025.

Based on LMR Partners's 13F filing for Q3 2025, filed 14 Nov 2025.