Vanguard Group’s Ambarella AMBA Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2025
Q4
$388M Buy
5,480,285
+311,649
+6% +$25.2M 0.01% 1203
2025
Q3
$427M Buy
5,168,636
+4,510
+0.1% +$328K 0.01% 1147
2025
Q2
$341M Buy
5,164,126
+315,821
+7% +$16.7M 0.01% 1243
2025
Q1
$244M Buy
4,848,305
+152,181
+3% +$10.4M ﹤0.01% 1388
2024
Q4
$342M Buy
4,696,124
+81,557
+2% +$5.2M 0.01% 1270
2024
Q3
$260M Buy
4,614,567
+18,397
+0.4% +$979K ﹤0.01% 1398
2024
Q2
$248M Buy
4,596,170
+255,339
+6% +$12.7M ﹤0.01% 1375
2024
Q1
$220M Buy
4,340,831
+248,297
+6% +$13.5M ﹤0.01% 1458
2023
Q4
$251M Buy
4,092,534
+69,864
+2% +$3.81M 0.01% 1375
2023
Q3
$213M Buy
4,022,670
+139,767
+4% +$9.81M 0.01% 1402
2023
Q2
$325M Buy
3,882,903
+236,797
+6% +$17.3M 0.01% 1188
2023
Q1
$282M Buy
3,646,106
+50,107
+1% +$4.29M 0.01% 1254
2022
Q4
$296M Buy
3,595,999
+84,840
+2% +$5.65M 0.01% 1192
2022
Q3
$197M Buy
3,511,159
+19,444
+0.6% +$1.44M 0.01% 1398
2022
Q2
$229M Sell
3,491,715
-23,647
-0.7% -$1.91M 0.01% 1340
2022
Q1
$369M Buy
3,515,362
+56,927
+2% +$7.26M 0.01% 1167
2021
Q4
$702M Buy
3,458,435
+77,924
+2% +$14.4M 0.02% 802
2021
Q3
$526M Buy
3,380,511
+32,700
+1% +$3.76M 0.01% 943
2021
Q2
$357M Buy
3,347,811
+136,144
+4% +$13.5M 0.01% 1227
2021
Q1
$322M Buy
3,211,667
+105,040
+3% +$11.4M 0.01% 1263
2020
Q4
$285M Buy
3,106,627
+108,616
+4% +$7.61M 0.01% 1234
2020
Q3
$156M Sell
2,998,011
-120,313
-4% -$5.82M 0.01% 1436
2020
Q2
$143M Buy
3,118,324
+128,871
+4% +$6.64M 0.01% 1487
2020
Q1
$145M Buy
2,989,453
+73,375
+3% +$4.21M 0.01% 1321
2019
Q4
$177M Buy
2,916,078
+70,410
+2% +$3.9M 0.01% 1454
2019
Q3
$179M Buy
2,845,668
+398,704
+16% +$20.7M 0.01% 1397
2019
Q2
$108M Buy
2,446,964
+26,230
+1% +$1.18M ﹤0.01% 1713
2019
Q1
$105M Buy
2,420,734
+54,816
+2% +$2.17M ﹤0.01% 1726
2018
Q4
$82.8M Sell
2,365,918
-41,126
-2% -$1.46M ﹤0.01% 1784
2018
Q3
$93.1M Buy
2,407,044
+57,943
+2% +$2.24M ﹤0.01% 1840
2018
Q2
$90.7M Buy
2,349,101
+95,374
+4% +$4.52M ﹤0.01% 1832
2018
Q1
$110M Buy
2,253,727
+68,323
+3% +$3.54M ﹤0.01% 1666
2017
Q4
$128M Buy
2,185,404
+12,525
+0.6% +$696K 0.01% 1591
2017
Q3
$106M Buy
2,172,879
+27,270
+1% +$1.35M 0.01% 1670
2017
Q2
$104M Buy
2,145,609
+60,770
+3% +$3.37M 0.01% 1649
2017
Q1
$114M Buy
2,084,839
+104,382
+5% +$5.63M 0.01% 1583
2016
Q4
$107M Buy
1,980,457
+49,558
+3% +$2.99M 0.01% 1576
2016
Q3
$142M Buy
1,930,899
+55,919
+3% +$3.5M 0.01% 1348
2016
Q2
$95.3M Sell
1,874,980
-17,658
-0.9% -$780K 0.01% 1549
2016
Q1
$84.6M Sell
1,892,638
-465,824
-20% -$19.3M 0.01% 1583
2015
Q4
$131M Sell
2,358,462
-18,356
-0.8% -$1.03M 0.01% 1270
2015
Q3
$137M Buy
2,376,818
+91,002
+4% +$8.59M 0.01% 1215
2015
Q2
$235M Buy
2,285,816
+724,988
+46% +$63.4M 0.02% 957
2015
Q1
$118M Buy
1,560,828
+202,129
+15% +$12.3M 0.01% 1380
2014
Q4
$68.9M Buy
1,358,699
+670,875
+98% +$31.3M 0.01% 1666
2014
Q3
$30M Buy
687,824
+607,023
+751% +$20.1M ﹤0.01% 2045
2014
Q2
$2.52M Buy
80,801
+26,726
+49% +$706K ﹤0.01% 3162
2014
Q1
$1.45M Buy
54,075
+3,032
+6% +$92.8K ﹤0.01% 3343
2013
Q4
$1.73M Buy
51,043
+3,815
+8% +$87.5K ﹤0.01% 3246
2013
Q3
$922K Buy
47,228
+2,576
+6% +$43.8K ﹤0.01% 3392
2013
Q2
$751K Buy
+44,652
New +$678K ﹤0.01% 3377

Other funds holding AMBA

Vanguard Group's AMBA Position: Q4 2025 in Review

Vanguard Group increased its Ambarella (AMBA) stake by 6% in Q4 2025, buying an estimated $25.2M and bringing the position to 5,480,285 shares worth $388M. The position accounts for 0.01% of the portfolio, ranked #1203.

Vanguard Group first reported a position in AMBA in Q2 2013 and has held it in 51 quarters since. The position peaked at $702M in Q4 2021. 323 funds tracked by Wall St. Rank hold AMBA as of Q4 2025.

  • Vanguard Group held 5,480,285 shares of Ambarella worth $388M as of Q4 2025.
  • Vanguard Group bought 311,649 Ambarella shares in Q4 2025, an estimated $25.2M.
  • Ambarella made up 0.01% of Vanguard Group's portfolio in Q4 2025, its #1203 holding.
  • Vanguard Group first reported a position in Ambarella in Q2 2013 and has held it in 51 quarters since.
  • Vanguard Group's Ambarella position peaked at $702M in Q4 2021.
  • 323 funds tracked by Wall St. Rank held Ambarella as of Q4 2025.

Based on Vanguard Group's 13F filing for Q4 2025, filed 29 Jan 2026.