Two Sigma Securities’s ATI ATI Stock Holding History

Two Sigma Securities’s Portfolio ATI Stock Details ATI Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2024 Q3	–	Sell	-6,500	Closed	-$360K	–	2843
2024 Q2	$360K	Buy	+6,500	New	+$364K	﹤0.01%	1837
2024 Q1	–	Sell	-6,200	Closed	-$282K	–	2961
2023 Q4	$282K	Buy	+6,200	New	+$257K	﹤0.01%	2056
2023 Q3	–	Sell	-9,200	Closed	-$407K	–	2916
2023 Q2	$407K	Buy	9,200 +1,000	+12%	+$38.3K	0.01%	1599
2023 Q1	$324K	Buy	8,200 +1,200	+17%	+$45.3K	0.01%	1621
2022 Q4	$209K	Buy	+7,000	New	+$205K	0.01%	1919
2020 Q1	–	Sell	-18,000	Closed	-$372K	–	1365
2019 Q4	$372K	Buy	18,000 +4,400	+32%	+$95.4K	﹤0.01%	1644
2019 Q3	$275K	Buy	13,600 +2,500	+23%	+$52.9K	﹤0.01%	1617
2019 Q2	$280K	Buy	+11,100	New	+$271K	﹤0.01%	1492
2019 Q1	–	Sell	-27,100	Closed	-$590K	–	1812
2018 Q4	$590K	Buy	27,100 +2,000	+8%	+$51.9K	0.01%	908
2018 Q3	$742K	Sell	25,100 -33,200	-57%	-$893K	﹤0.01%	1180
2018 Q2	$1.46M	Buy	58,300 +23,200	+66%	+$628K	0.01%	1103
2018 Q1	$831K	Buy	+35,100	New	+$942K	﹤0.01%	1374

Other funds holding ATI

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Viking Global Investors Stamford, Connecticut $35.7B AUM 21.3% 1-Year Est. Return

Two Sigma Securities's ATI Position: Q1 2026 in Review

Two Sigma Securities opened a new position in ATI (ATI) in Q1 2026: 4,474 shares worth $651K. The stake represents 0.08% of the portfolio and ranks #364 among its holdings. This is a return to the name: Two Sigma Securities previously reported a position in ATI as recently as Q2 2024.

Two Sigma Securities first reported a position in ATI in Q1 2017 and has held it in 4 quarters since. The position peaked at $1.12M in Q2 2024. 674 funds tracked by Wall St. Rank hold ATI as of Q1 2026.

Two Sigma Securities held 4,474 shares of ATI worth $651K as of Q1 2026.
ATI was a new Two Sigma Securities position in Q1 2026.
ATI made up 0.08% of Two Sigma Securities's portfolio in Q1 2026, its #364 holding.
Two Sigma Securities first reported a position in ATI in Q1 2017 and has held it in 4 quarters since.
Two Sigma Securities's ATI position peaked at $1.12M in Q2 2024.
674 funds tracked by Wall St. Rank held ATI as of Q1 2026.

Based on Two Sigma Securities's 13F filing for Q1 2026, filed 15 May 2026.