Simplex Trading
AMBA icon

Simplex Trading’s Ambarella AMBA Stock Holding History

Simplex Trading’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
Q1 		$643K Sell
12,500
-22,700
-64% -$1.42M ﹤0.01% 2976
2025
Q4 		$2.49M Buy
35,200
+10,200
+41% +$824K ﹤0.01% 1802
2025
Q3 		$2.06M Buy
25,000
+1,600
+7% +$116K ﹤0.01% 2295
2025
Q2 		$1.54M Sell
23,400
-1,000
-4% -$53K ﹤0.01% 2344
2025
Q1 		$1.23M Sell
24,400
-30,100
-55% -$2.06M ﹤0.01% 2504
2024
Q4 		$3.96M Buy
54,500
+12,800
+31% +$816K ﹤0.01% 1647
2024
Q3 		$2.35M Buy
41,700
+600
+1% +$31.9K ﹤0.01% 2140
2024
Q2 		$2.22M Sell
41,100
-18,600
-31% -$924K ﹤0.01% 2100
2024
Q1 		$3.03M Sell
59,700
-43,300
-42% -$2.36M ﹤0.01% 2021
2023
Q4 		$6.31M Buy
103,000
+14,300
+16% +$781K ﹤0.01% 1378
2023
Q3 		$4.7M Buy
88,700
+17,900
+25% +$1.26M ﹤0.01% 1394
2023
Q2 		$5.92M Buy
70,800
+10,100
+17% +$739K ﹤0.01% 1206
2023
Q1 		$4.7M Sell
60,700
-179,200
-75% -$15.3M ﹤0.01% 1338
2022
Q4 		$19.7M Buy
239,900
+178,300
+289% +$11.9M 0.02% 560
2022
Q3 		$3.46M Sell
61,600
-45,400
-42% -$3.36M ﹤0.01% 1482
2022
Q2 		$7M Buy
107,000
+74,600
+230% +$6.01M 0.01% 954
2022
Q1 		$3.4M Buy
32,400
+3,200
+11% +$408K ﹤0.01% 1585
2021
Q4 		$5.92M Buy
29,200
+9,300
+47% +$1.72M 0.01% 1105
2021
Q3 		$2.11M Hold
19,900
– – ﹤0.01% 2068
2021
Q2 		$2.12M Buy
19,900
+19,759
+14,013% +$1.96M ﹤0.01% 2083
2021
Q1 		$1.42M Sell
141
-635
-82% -$69.1K ﹤0.01% 2016
2020
Q4 		$7.13M Buy
776
+485
+167% +$34K 0.01% 752
2020
Q3 		$1.52M Sell
291
-377
-56% -$18.2K ﹤0.01% 1786
2020
Q2 		$3.06M Sell
668
-72
-10% -$3.71K ﹤0.01% 1179
2020
Q1 		$3.59M Buy
740
+61
+9% +$3.5K 0.01% 882
2019
Q4 		$4.11M Buy
679
+123
+22% +$6.81K 0.01% 927
2019
Q3 		$3.49M Buy
556
+163
+41% +$8.46K 0.01% 925
2019
Q2 		$1.73M Buy
393
+17
+5% +$762 ﹤0.01% 1420
2019
Q1 		$1.62M Sell
376
-163
-30% -$6.45K ﹤0.01% 1559
2018
Q4 		$1.89M Sell
539
-98
-15% -$3.47K 0.01% 1132
2018
Q3 		$2.46M Sell
637
-255
-29% -$9.88K 0.01% 1078
2018
Q2 		$3.44M Buy
892
+326
+58% +$15.4K 0.01% 766
2018
Q1 		$139K Sell
566
-380
-40% -$19.7K 0.01% 1526
2017
Q4 		$555K Buy
946
+85
+10% +$4.72K 0.02% 666
2017
Q3 		$334K Buy
861
+518
+151% +$25.6K 0.01% 892
2017
Q2 		$73K Sell
343
-364
-51% -$20.2K ﹤0.01% 2031
2017
Q1 		$129K Sell
707
-243
-26% -$13.1K 0.01% 1530
2016
Q4 		$262K Buy
950
+213
+29% +$12.8K 0.02% 876
2016
Q3 		$661K Buy
737
+135
+22% +$8.46K 0.04% 391
2016
Q2 		$299K Sell
602
-108
-15% -$4.77K 0.02% 770
2016
Q1 		$224K Buy
710
+122
+21% +$5.05K 0.02% 816
2015
Q4 		$97K Sell
588
-66
-10% -$3.72K 0.01% 1386
2015
Q3 		$114K Sell
654
-576
-47% -$54.4K 0.01% 1321
2015
Q2 		$1.79M Buy
1,230
+847
+221% +$74K 0.15% 109
2015
Q1 		$739K Sell
383
-56
-13% -$3.4K 0.09% 226
2014
Q4 		$381K Buy
+439
New +$20.5K 0.05% 356

Other funds holding AMBA

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Manulife (Manufacturers Life Insurance)
Manulife (Manufacturers Life Insurance) Canada, Ontario, Canada $116B AUM 26.37% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
Legal & General Group
Legal & General Group London, United Kingdom $432B AUM 29.4% 1-Year Est. Return

Simplex Trading's AMBA Position: Q1 2026 in Review

Simplex Trading reduced its Ambarella (AMBA) stake by 59% in Q1 2026, selling an estimated $286K and leaving 3,243 shares worth $167K. The position accounts for ﹤0.01% of the portfolio, ranked #4513.

Simplex Trading first reported a position in AMBA in Q1 2015 and has held it in 30 quarters since. The position peaked at $2.42M in Q2 2022. 305 funds tracked by Wall St. Rank hold AMBA as of Q1 2026.

  • Simplex Trading held 3,243 shares of Ambarella worth $167K as of Q1 2026.
  • Simplex Trading sold 4,581 Ambarella shares in Q1 2026, an estimated $286K.
  • Ambarella made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #4513 holding.
  • Simplex Trading first reported a position in Ambarella in Q1 2015 and has held it in 30 quarters since.
  • Simplex Trading's Ambarella position peaked at $2.42M in Q2 2022.
  • 305 funds tracked by Wall St. Rank held Ambarella as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.