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Robeco Schweiz’s Ambarella AMBA Stock Holding History

Robeco Schweiz’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
2026
Q2 		$9.12M Buy
106,242
+2,088
+2% +$144K 0.15% 97
2026
Q1 		$5.36M Sell
104,154
-58,441
-36% -$3.64M 0.11% 104
2025
Q4 		$11.5M Sell
162,595
-84,950
-34% -$6.86M 0.26% 87
2025
Q3 		$20.4M Sell
247,545
-5,575
-2% -$405K 0.46% 64
2025
Q2 		$16.7M Sell
253,120
-166,000
-40% -$8.8M 0.39% 68
2025
Q1 		$21.1M Buy
419,120
+144,200
+52% +$9.87M 0.52% 61
2024
Q4 		$20M Sell
274,920
-8,880
-3% -$566K 0.43% 64
2024
Q3 		$16M Sell
283,800
-16,200
-5% -$862K 0.3% 72
2024
Q2 		$16.2M Sell
300,000
-46,425
-13% -$2.31M 0.31% 72
2024
Q1 		$17.6M Sell
346,425
-22,130
-6% -$1.21M 0.31% 75
2023
Q4 		$22.6M Sell
368,555
-22,955
-6% -$1.25M 0.38% 74
2023
Q3 		$20.8M Sell
391,510
-22,500
-5% -$1.58M 0.35% 77
2023
Q2 		$34.6M Buy
414,010
+59,135
+17% +$4.33M 0.52% 67
2023
Q1 		$27.5M Sell
354,875
-17,635
-5% -$1.51M 0.44% 73
2022
Q4 		$30.6M Hold
372,510
– – 0.56% 61
2022
Q3 		$20.9M Buy
372,510
+210
+0.1% +$15.6K 0.41% 69
2022
Q2 		$24.4M Buy
372,300
+92,800
+33% +$7.48M 0.43% 74
2022
Q1 		$29.3M Buy
+279,500
New +$35.6M 0.41% 77

Other funds holding AMBA

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Manulife (Manufacturers Life Insurance)
Manulife (Manufacturers Life Insurance) Canada, Ontario, Canada $128B AUM 35.83% 1-Year Est. Return
Legal & General Group
Legal & General Group London, United Kingdom $480B AUM 42.84% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
MMH
Menora Mivtachim Holdings Ramat Gan, Israel $25.6B AUM 50.04% 1-Year Est. Return
SIMG
Stephens Investment Management Group Houston, Texas $9.33B AUM 56.1% 1-Year Est. Return

Robeco Schweiz's AMBA Position: Q2 2026 in Review

Robeco Schweiz increased its Ambarella (AMBA) stake by 2% in Q2 2026, buying an estimated $144K and bringing the position to 106,242 shares worth $9.12M. The position accounts for 0.15% of the portfolio, ranked #97.

Robeco Schweiz first reported a position in AMBA in Q1 2022 and has held it in 18 quarters since. The position peaked at $34.6M in Q2 2023. 339 funds tracked by Wall St. Rank hold AMBA as of Q2 2026.

  • Robeco Schweiz held 106,242 shares of Ambarella worth $9.12M as of Q2 2026.
  • Robeco Schweiz bought 2,088 Ambarella shares in Q2 2026, an estimated $144K.
  • Ambarella made up 0.15% of Robeco Schweiz's portfolio in Q2 2026, its #97 holding.
  • Robeco Schweiz first reported a position in Ambarella in Q1 2022 and has held it in 18 quarters since.
  • Robeco Schweiz's Ambarella position peaked at $34.6M in Q2 2023.
  • 339 funds tracked by Wall St. Rank held Ambarella as of Q2 2026.

Based on Robeco Schweiz's 13F filing for Q2 2026, filed 28 Jul 2026.