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Atom Investors’s Ambarella AMBA Stock Holding History

Atom Investors’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
Q4 		– Sell
-68,487
Closed -$5.65M – 571
2025
Q3 		$5.65M Buy
68,487
+44,954
+191% +$3.26M 0.43% 59
2025
Q2 		$1.55M Buy
+23,533
New +$1.25M 0.14% 192
2024
Q4 		– Sell
-27,473
Closed -$1.55M – 488
2024
Q3 		$1.55M Sell
27,473
-54,690
-67% -$2.91M 0.16% 188
2024
Q2 		$4.43M Buy
+82,163
New +$4.08M 0.44% 69

Other funds holding AMBA

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
JCAM
Jericho Capital Asset Management New York $6.76B AUM 88.1% 1-Year Est. Return
Manulife (Manufacturers Life Insurance)
Manulife (Manufacturers Life Insurance) Canada, Ontario, Canada $116B AUM 26.37% 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
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $29.7B AUM 43.33% 1-Year Est. Return
SPC
Slate Path Capital New York $6.73B AUM 95.97% 1-Year Est. Return

Atom Investors's AMBA Position: Q4 2025 in Review

Atom Investors sold out of Ambarella (AMBA) in Q4 2025, closing a stake of 68,487 shares — an estimated $5.65M sold.

Atom Investors first reported a position in AMBA in Q2 2024 and held it in 4 quarters. The position peaked at $5.65M in Q3 2025. 323 funds tracked by Wall St. Rank hold AMBA as of Q4 2025.

  • Atom Investors reported no remaining Ambarella position as of Q4 2025 after selling out during the quarter.
  • Atom Investors sold 68,487 Ambarella shares in Q4 2025, an estimated $5.65M.
  • Atom Investors first reported a position in Ambarella in Q2 2024 and held it in 4 quarters.
  • Atom Investors's Ambarella position peaked at $5.65M in Q3 2025.
  • 323 funds tracked by Wall St. Rank held Ambarella as of Q4 2025.

Based on Atom Investors's 13F filing for Q4 2025, filed 17 Feb 2026.