Sigma Planning Corp’s Ambarella AMBA Stock Holding History

Sigma Planning Corp’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
2025 Q4	–	Sell	-13,819	Closed	-$1.14M	–	1299
2025 Q3	$1.14M	Buy	13,819 +8,166	+144%	+$593K	0.03%	476
2025 Q2	$373K	Buy	+5,653	New	+$300K	0.01%	904
2022 Q1	–	Sell	-1,071	Closed	-$217K	–	1370
2021 Q4	$217K	Buy	+1,071	New	+$199K	0.01%	1245
2015 Q3	–	Sell	-3,182	Closed	-$327K	–	675
2015 Q2	$327K	Buy	+3,182	New	+$278K	0.05%	462
2015 Q1	–	Sell	-16,604	Closed	-$842K	–	754
2014 Q4	$842K	Buy	+16,604	New	+$776K	0.11%	221

Other funds holding AMBA

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

JCAM

Jericho Capital Asset Management New York $6.76B AUM 88.1% 1-Year Est. Return

Manulife (Manufacturers Life Insurance) Canada, Ontario, Canada $116B AUM 26.37% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Fuller & Thaler Asset Management San Mateo, California $29.7B AUM 43.33% 1-Year Est. Return

SPC

Slate Path Capital New York $6.73B AUM 95.97% 1-Year Est. Return

Sigma Planning Corp's AMBA Position: Q4 2025 in Review

Sigma Planning Corp sold out of Ambarella (AMBA) in Q4 2025, closing a stake of 13,819 shares — an estimated $1.14M sold.

Sigma Planning Corp first reported a position in AMBA in Q4 2014 and held it in 5 quarters. The position peaked at $1.14M in Q3 2025. 323 funds tracked by Wall St. Rank hold AMBA as of Q4 2025.

Sigma Planning Corp reported no remaining Ambarella position as of Q4 2025 after selling out during the quarter.
Sigma Planning Corp sold 13,819 Ambarella shares in Q4 2025, an estimated $1.14M.
Sigma Planning Corp first reported a position in Ambarella in Q4 2014 and held it in 5 quarters.
Sigma Planning Corp's Ambarella position peaked at $1.14M in Q3 2025.
323 funds tracked by Wall St. Rank held Ambarella as of Q4 2025.

Based on Sigma Planning Corp's 13F filing for Q4 2025, filed 30 Jan 2026.