Dimensional Fund Advisors
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Dimensional Fund Advisors’s Ambarella AMBA Stock Holding History

Dimensional Fund Advisors’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 		$32.9M Buy
638,587
+139,928
+28% +$8.73M 0.01% 1720
2025
Q4 		$35.3M Sell
498,659
-12,939
-3% -$1.05M 0.01% 1690
2025
Q3 		$42.2M Sell
511,598
-4,561
-0.9% -$331K 0.01% 1609
2025
Q2 		$34.1M Sell
516,159
-27,524
-5% -$1.46M 0.01% 1708
2025
Q1 		$27.4M Sell
543,683
-79,436
-13% -$5.44M 0.01% 1799
2024
Q4 		$45.3M Sell
623,119
-28,212
-4% -$1.8M 0.01% 1565
2024
Q3 		$36.7M Sell
651,331
-31,788
-5% -$1.69M 0.01% 1681
2024
Q2 		$36.9M Buy
683,119
+2,994
+0.4% +$149K 0.01% 1653
2024
Q1 		$34.5M Sell
680,125
-24,225
-3% -$1.32M 0.01% 1698
2023
Q4 		$43.2M Buy
704,350
+29,379
+4% +$1.6M 0.01% 1548
2023
Q3 		$35.8M Buy
674,971
+8,952
+1% +$629K 0.01% 1564
2023
Q2 		$55.7M Buy
666,019
+35,005
+6% +$2.56M 0.02% 1270
2023
Q1 		$48.9M Buy
631,014
+24,920
+4% +$2.13M 0.02% 1339
2022
Q4 		$49.8K Buy
606,094
+21,071
+4% +$1.4M 0.01% 1309
2022
Q3 		$32.9M Buy
585,023
+32,045
+6% +$2.37M 0.01% 1523
2022
Q2 		$36.2M Sell
552,978
-26,829
-5% -$2.16M 0.01% 1538
2022
Q1 		$60.8M Sell
579,807
-9,948
-2% -$1.27M 0.02% 1239
2021
Q4 		$120M Sell
589,755
-46,534
-7% -$8.63M 0.04% 727
2021
Q3 		$99.1M Sell
636,289
-2,959
-0.5% -$340K 0.03% 835
2021
Q2 		$68.2M Sell
639,248
-34,990
-5% -$3.46M 0.02% 1174
2021
Q1 		$67.7M Sell
674,238
-42,722
-6% -$4.65M 0.02% 1162
2020
Q4 		$65.8M Sell
716,960
-8,287
-1% -$580K 0.02% 1127
2020
Q3 		$37.8M Buy
725,247
+6,105
+0.8% +$295K 0.02% 1420
2020
Q2 		$32.9M Buy
719,142
+23,351
+3% +$1.2M 0.01% 1551
2020
Q1 		$33.8M Sell
695,791
-12,035
-2% -$690K 0.02% 1372
2019
Q4 		$42.9M Buy
707,826
+2,890
+0.4% +$160K 0.02% 1567
2019
Q3 		$44.3M Sell
704,936
-297
-0% -$15.4K 0.02% 1495
2019
Q2 		$31.1M Buy
705,233
+9,830
+1% +$440K 0.01% 1795
2019
Q1 		$30M Buy
695,403
+230,586
+50% +$9.12M 0.01% 1823
2018
Q4 		$16.3M Buy
464,817
+92,847
+25% +$3.29M 0.01% 2096
2018
Q3 		$14.4M Sell
371,970
-13,838
-4% -$536K 0.01% 2283
2018
Q2 		$14.9M Buy
385,808
+82,457
+27% +$3.9M 0.01% 2252
2018
Q1 		$14.9M Buy
303,351
+130,586
+76% +$6.77M 0.01% 2208
2017
Q4 		$10.2M Hold
172,765
– – ﹤0.01% 2371
2017
Q3 		$8.47M Buy
172,765
+98,965
+134% +$4.88M ﹤0.01% 2438
2017
Q2 		$3.58M Sell
73,800
-4,494
-6% -$249K ﹤0.01% 2700
2017
Q1 		$4.28M Sell
78,294
-2,072
-3% -$112K ﹤0.01% 2623
2016
Q4 		$4.35M Sell
80,366
-3,155
-4% -$190K ﹤0.01% 2590
2016
Q3 		$6.15M Buy
83,521
+79,508
+1,981% +$4.98M ﹤0.01% 2449
2016
Q2 		$204K Buy
+4,013
New +$177K ﹤0.01% 3177

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

Dimensional Fund Advisors's AMBA Position: Q1 2026 in Review

Dimensional Fund Advisors increased its Ambarella (AMBA) stake by 28% in Q1 2026, buying an estimated $8.73M and bringing the position to 638,587 shares worth $32.9M. The position accounts for 0.01% of the portfolio, ranked #1720.

Dimensional Fund Advisors first reported a position in AMBA in Q2 2016 and has held it in 40 quarters since. The position peaked at $120M in Q4 2021. 305 funds tracked by Wall St. Rank hold AMBA as of Q1 2026.

  • Dimensional Fund Advisors held 638,587 shares of Ambarella worth $32.9M as of Q1 2026.
  • Dimensional Fund Advisors bought 139,928 Ambarella shares in Q1 2026, an estimated $8.73M.
  • Ambarella made up 0.01% of Dimensional Fund Advisors's portfolio in Q1 2026, its #1720 holding.
  • Dimensional Fund Advisors first reported a position in Ambarella in Q2 2016 and has held it in 40 quarters since.
  • Dimensional Fund Advisors's Ambarella position peaked at $120M in Q4 2021.
  • 305 funds tracked by Wall St. Rank held Ambarella as of Q1 2026.

Based on Dimensional Fund Advisors's 13F filing for Q1 2026, filed 7 May 2026.