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
JCAM
SPC
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.