Citigroup
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Citigroup’s Ambarella AMBA Stock Holding History

Citigroup’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
2021
Q1 		– Sell
-50,700
Closed -$4.66M – 6205
2020
Q4 		$4.66M Sell
50,700
-9,600
-16% -$672K ﹤0.01% 2135
2020
Q3 		$3.15M Sell
60,300
-3,800
-6% -$184K ﹤0.01% 2261
2020
Q2 		$2.94M Buy
64,100
+8,500
+15% +$438K ﹤0.01% 2371
2020
Q1 		$2.7M Buy
55,600
+4,100
+8% +$235K ﹤0.01% 2203
2019
Q4 		$3.12M Buy
51,500
+7,700
+18% +$426K ﹤0.01% 2497
2019
Q3 		$2.75M Sell
43,800
-11,200
-20% -$581K ﹤0.01% 2518
2019
Q2 		$2.43M Buy
55,000
+1,500
+3% +$67.2K ﹤0.01% 2635
2019
Q1 		$2.31M Sell
53,500
-17,300
-24% -$684K ﹤0.01% 2501
2018
Q4 		$2.48M Sell
70,800
-8,300
-10% -$294K ﹤0.01% 2468
2018
Q3 		$3.06M Sell
79,100
-22,200
-22% -$860K ﹤0.01% 2323
2018
Q2 		$3.91M Sell
101,300
-37,400
-27% -$1.77M ﹤0.01% 2065
2018
Q1 		$6.8M Buy
138,700
+62,200
+81% +$3.23M 0.01% 1516
2017
Q4 		$4.49M Buy
76,500
+52,600
+220% +$2.92M ﹤0.01% 1931
2017
Q3 		$1.17M Buy
23,900
+1,600
+7% +$78.9K ﹤0.01% 3206
2017
Q2 		$1.08M Buy
22,300
+16,400
+278% +$908K ﹤0.01% 3225
2017
Q1 		$323K Sell
5,900
-19,400
-77% -$1.05M ﹤0.01% 4234
2016
Q4 		$1.37M Sell
25,300
-5,900
-19% -$356K ﹤0.01% 3369
2016
Q3 		$2.3M Buy
31,200
+9,600
+44% +$601K ﹤0.01% 2382
2016
Q2 		$1.1M Sell
21,600
-1,500
-6% -$66.3K ﹤0.01% 2866
2016
Q1 		$1.03M Sell
23,100
-15,700
-40% -$650K ﹤0.01% 3300
2015
Q4 		$2.16M Sell
38,800
-22,800
-37% -$1.28M ﹤0.01% 2427
2015
Q3 		$3.56M Sell
61,600
-53,900
-47% -$5.09M ﹤0.01% 1956
2015
Q2 		$11.9M Buy
115,500
+88,600
+329% +$7.74M 0.01% 1089
2015
Q1 		$2.04M Buy
26,900
+22,400
+498% +$1.36M ﹤0.01% 2469
2014
Q4 		$228K Buy
+4,500
New +$210K ﹤0.01% 4572

Other funds holding AMBA

Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Exchange Traded Concepts
Exchange Traded Concepts Oklahoma City, Oklahoma $25.3B AUM 51.52% 1-Year Est. Return
Pinnacle Associates
Pinnacle Associates New York $8.92B AUM 43.91% 1-Year Est. Return
SWS Partners
SWS Partners Columbus, Ohio $465M AUM 35.11% 1-Year Est. Return
RFG Advisory
RFG Advisory Birmingham, Alabama $7.09B AUM 12.79% 1-Year Est. Return
Essex Investment Management
Essex Investment Management Boston, Massachusetts $675M AUM 61.81% 1-Year Est. Return
Granite Investment Partners
Granite Investment Partners El Segundo, California $1.84B AUM 35.93% 1-Year Est. Return
Creative Planning
Creative Planning Overland Park, Kansas $179B AUM 16.96% 1-Year Est. Return
Katamaran Capital
Katamaran Capital London, United Kingdom $101M AUM 45.46% 1-Year Est. Return
Harbor Capital Advisors
Harbor Capital Advisors Chicago, Illinois $1.48B AUM 30.88% 1-Year Est. Return

Citigroup's AMBA Position: Q3 2026 in Review

Citigroup reduced its Ambarella (AMBA) stake by 32% in Q3 2026, selling an estimated $1.32M and leaving 39,045 shares worth $2.71M. The position accounts for ﹤0.01% of the portfolio, ranked #2590.

Citigroup first reported a position in AMBA in Q2 2013 and has held it in 54 quarters since. The position peaked at $15.2M in Q3 2017. 96 funds tracked by Wall St. Rank hold AMBA as of Q3 2026.

  • Citigroup held 39,045 shares of Ambarella worth $2.71M as of Q3 2026.
  • Citigroup sold 18,272 Ambarella shares in Q3 2026, an estimated $1.32M.
  • Ambarella made up ﹤0.01% of Citigroup's portfolio in Q3 2026, its #2590 holding.
  • Citigroup first reported a position in Ambarella in Q2 2013 and has held it in 54 quarters since.
  • Citigroup's Ambarella position peaked at $15.2M in Q3 2017.
  • 96 funds tracked by Wall St. Rank held Ambarella as of Q3 2026.

Based on Citigroup's 13F filing for Q3 2026, filed 4 Nov 2026.