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GAMCO Investors’s Ambarella AMBA Stock Holding History

GAMCO Investors’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
Q2 		$1.02M Buy
11,879
+2,025
+21% +$139K 0.01% 602
2026
Q1 		$507K Buy
9,854
+1,707
+21% +$106K 0.01% 762
2025
Q4 		$577K Sell
8,147
-7,052
-46% -$570K 0.01% 775
2025
Q3 		$1.25M Sell
15,199
-977
-6% -$70.9K 0.01% 607
2025
Q2 		$1.07M Sell
16,176
-2,172
-12% -$115K 0.01% 643
2025
Q1 		$923K Sell
18,348
-153
-0.8% -$10.5K 0.01% 579
2024
Q4 		$1.35M Sell
18,501
-377
-2% -$24K 0.01% 553
2024
Q3 		$1.06M Buy
18,878
+6,587
+54% +$351K 0.01% 578
2024
Q2 		$663K Sell
12,291
-1,722
-12% -$85.5K 0.01% 661
2024
Q1 		$711K Buy
14,013
+3,777
+37% +$206K 0.01% 649
2023
Q4 		$627K Sell
10,236
-626
-6% -$34.2K 0.01% 661
2023
Q3 		$576K Buy
10,862
+6,633
+157% +$466K 0.01% 665
2023
Q2 		$354K Buy
4,229
+760
+22% +$55.6K ﹤0.01% 724
2023
Q1 		$269K Buy
3,469
+30
+0.9% +$2.57K ﹤0.01% 791
2022
Q4 		$283K Buy
+3,439
New +$229K ﹤0.01% 782
2022
Q2 		– Sell
-2,383
Closed -$250K – 901
2022
Q1 		$250K Buy
2,383
+324
+16% +$41.3K ﹤0.01% 837
2021
Q4 		$418K Sell
2,059
-2,365
-53% -$438K ﹤0.01% 768
2021
Q3 		$689K Sell
4,424
-343
-7% -$39.4K 0.01% 689
2021
Q2 		$508K Buy
4,767
+17
+0.4% +$1.68K ﹤0.01% 759
2021
Q1 		$477K Sell
4,750
-1,804
-28% -$196K ﹤0.01% 769
2020
Q4 		$602K Sell
6,554
-231
-3% -$16.2K 0.01% 697
2020
Q3 		$354K Buy
6,785
+187
+3% +$9.04K ﹤0.01% 736
2020
Q2 		$302K Sell
6,598
-449
-6% -$23.1K ﹤0.01% 737
2020
Q1 		$342K Buy
7,047
+345
+5% +$19.8K ﹤0.01% 717
2019
Q4 		$406K Buy
6,702
+874
+15% +$48.4K ﹤0.01% 757
2019
Q3 		$366K Buy
+5,828
New +$302K ﹤0.01% 780
2019
Q2 		– Sell
-5,648
Closed -$244K – 927
2019
Q1 		$244K Buy
+5,648
New +$223K ﹤0.01% 784

Other funds holding AMBA

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Manulife (Manufacturers Life Insurance)
Manulife (Manufacturers Life Insurance) Canada, Ontario, Canada $128B AUM 35.83% 1-Year Est. Return
Legal & General Group
Legal & General Group London, United Kingdom $480B AUM 42.84% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
MMH
Menora Mivtachim Holdings Ramat Gan, Israel $25.6B AUM 50.04% 1-Year Est. Return
SIMG
Stephens Investment Management Group Houston, Texas $9.33B AUM 56.1% 1-Year Est. Return

GAMCO Investors's AMBA Position: Q2 2026 in Review

GAMCO Investors increased its Ambarella (AMBA) stake by 21% in Q2 2026, buying an estimated $139K and bringing the position to 11,879 shares worth $1.02M. The position accounts for 0.01% of the portfolio, ranked #602.

GAMCO Investors first reported a position in AMBA in Q1 2019 and has held it in 27 quarters since. The position peaked at $1.35M in Q4 2024. 341 funds tracked by Wall St. Rank hold AMBA as of Q2 2026.

  • GAMCO Investors held 11,879 shares of Ambarella worth $1.02M as of Q2 2026.
  • GAMCO Investors bought 2,025 Ambarella shares in Q2 2026, an estimated $139K.
  • Ambarella made up 0.01% of GAMCO Investors's portfolio in Q2 2026, its #602 holding.
  • GAMCO Investors first reported a position in Ambarella in Q1 2019 and has held it in 27 quarters since.
  • GAMCO Investors's Ambarella position peaked at $1.35M in Q4 2024.
  • 341 funds tracked by Wall St. Rank held Ambarella as of Q2 2026.

Based on GAMCO Investors's 13F filing for Q2 2026, filed 12 Aug 2026.