Simplex Trading
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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 		$226K Sell
4,400
-26,300
-86% -$1.64M ﹤0.01% 4164
2025
Q4 		$2.17M Sell
30,700
-25,300
-45% -$2.04M ﹤0.01% 1910
2025
Q3 		$4.62M Buy
56,000
+35,700
+176% +$2.59M ﹤0.01% 1532
2025
Q2 		$1.34M Sell
20,300
-5,300
-21% -$281K ﹤0.01% 2481
2025
Q1 		$1.29M Sell
25,600
-38,000
-60% -$2.6M ﹤0.01% 2454
2024
Q4 		$4.63M Sell
63,600
-1,800
-3% -$115K ﹤0.01% 1528
2024
Q3 		$3.69M Buy
65,400
+26,300
+67% +$1.4M ﹤0.01% 1734
2024
Q2 		$2.11M Sell
39,100
-12,400
-24% -$616K ﹤0.01% 2153
2024
Q1 		$2.61M Sell
51,500
-55,700
-52% -$3.04M ﹤0.01% 2144
2023
Q4 		$6.57M Buy
107,200
+19,200
+22% +$1.05M ﹤0.01% 1354
2023
Q3 		$4.67M Buy
88,000
+26,200
+42% +$1.84M ﹤0.01% 1402
2023
Q2 		$5.17M Sell
61,800
-17,000
-22% -$1.24M ﹤0.01% 1288
2023
Q1 		$6.1M Sell
78,800
-15,000
-16% -$1.28M 0.01% 1174
2022
Q4 		$7.71M Buy
93,800
+47,200
+101% +$3.14M 0.01% 982
2022
Q3 		$2.62M Sell
46,600
-4,100
-8% -$304K ﹤0.01% 1730
2022
Q2 		$3.32M Buy
50,700
+15,000
+42% +$1.21M ﹤0.01% 1415
2022
Q1 		$3.75M Sell
35,700
-1,200
-3% -$153K ﹤0.01% 1497
2021
Q4 		$7.49M Buy
36,900
+12,700
+52% +$2.35M 0.01% 953
2021
Q3 		$2.56M Buy
24,200
+100
+0.4% +$11.5K ﹤0.01% 1845
2021
Q2 		$2.57M Buy
24,100
+24,049
+47,155% +$2.38M ﹤0.01% 1850
2021
Q1 		$511K Sell
51
-234
-82% -$25.5K ﹤0.01% 3337
2020
Q4 		$2.62M Buy
285
+35
+14% +$2.45K ﹤0.01% 1499
2020
Q3 		$1.3M Buy
250
+37
+17% +$1.79K ﹤0.01% 1934
2020
Q2 		$975K Sell
213
-424
-67% -$21.8K ﹤0.01% 2175
2020
Q1 		$3.09M Sell
637
-397
-38% -$22.8K 0.01% 971
2019
Q4 		$6.26M Buy
1,034
+137
+15% +$7.59K 0.01% 667
2019
Q3 		$5.64M Buy
897
+201
+29% +$10.4K 0.02% 655
2019
Q2 		$3.07M Buy
696
+312
+81% +$14K 0.01% 997
2019
Q1 		$1.66M Buy
384
+35
+10% +$1.39K ﹤0.01% 1542
2018
Q4 		$1.22M Sell
349
-225
-39% -$7.97K ﹤0.01% 1471
2018
Q3 		$2.22M Buy
574
+322
+128% +$12.5K 0.01% 1164
2018
Q2 		$972K Buy
252
+92
+58% +$4.36K ﹤0.01% 1822
2018
Q1 		$61K Sell
160
-157
-50% -$8.14K ﹤0.01% 2230
2017
Q4 		$38K Sell
317
-143
-31% -$7.95K ﹤0.01% 2689
2017
Q3 		$173K Buy
460
+163
+55% +$8.04K 0.01% 1294
2017
Q2 		$198K Sell
297
-59
-17% -$3.27K 0.01% 1208
2017
Q1 		$157K Sell
356
-304
-46% -$16.4K 0.01% 1398
2016
Q4 		$358K Sell
660
-225
-25% -$13.6K 0.02% 714
2016
Q3 		$227K Buy
885
+127
+17% +$7.96K 0.02% 938
2016
Q2 		$298K Sell
758
-32
-4% -$1.41K 0.02% 774
2016
Q1 		$399K Buy
790
+174
+28% +$7.2K 0.03% 538
2015
Q4 		$397K Buy
616
+111
+22% +$6.26K 0.03% 519
2015
Q3 		$691K Sell
505
-660
-57% -$62.3K 0.05% 327
2015
Q2 		$1.44M Buy
1,165
+292
+33% +$25.5K 0.12% 145
2015
Q1 		$217K Buy
873
+393
+82% +$23.9K 0.03% 688
2014
Q4 		$68K Buy
+480
New +$22.4K 0.01% 1162

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.