Winton Group’s Astronics ATRO Stock Holding History

Winton Group’s Portfolio ATRO Stock Details ATRO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-10,373	Closed	-$394K	–	927
2025 Q3	$394K	Buy	10,373 +460	+5%	+$14K	0.01%	598
2025 Q2	$277K	Sell	9,913 -347	-3%	-$8.11K	0.01%	703
2025 Q1	$207K	Buy	+10,260	New	+$172K	0.01%	620
2020 Q2	–	Sell	-16,594	Closed	-$127K	–	1445
2020 Q1	$127K	Sell	16,594 -27,871	-63%	-$501K	﹤0.01%	1302
2019 Q4	$1.04M	Buy	+44,465	New	+$1.09M	0.01%	1058

Other funds holding ATRO

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

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

Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return

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

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

NCGI

Next Century Growth Investors Plymouth, Minnesota $1.89B AUM 151.53% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

DCM

Driehaus Capital Management Chicago, Illinois $17.3B AUM 211.34% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

AAM

ACK Asset Management Greenwich, Connecticut $856M AUM 70.44% 1-Year Est. Return

Winton Group's ATRO Position: Q4 2025 in Review

Winton Group sold out of Astronics (ATRO) in Q4 2025, closing a stake of 10,373 shares — an estimated $394K sold.

Winton Group first reported a position in ATRO in Q4 2019 and held it in 5 quarters. The position peaked at $1.04M in Q4 2019. 276 funds tracked by Wall St. Rank hold ATRO as of Q4 2025.

Winton Group reported no remaining Astronics position as of Q4 2025 after selling out during the quarter.
Winton Group sold 10,373 Astronics shares in Q4 2025, an estimated $394K.
Winton Group first reported a position in Astronics in Q4 2019 and held it in 5 quarters.
Winton Group's Astronics position peaked at $1.04M in Q4 2019.
276 funds tracked by Wall St. Rank held Astronics as of Q4 2025.

Based on Winton Group's 13F filing for Q4 2025, filed 11 Feb 2026.