Jane Street
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Jane Street’s ATI ATI Stock Holding History

Jane Street’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
2026
Q1 		$2.98M Sell
20,500
-16,300
-44% -$2.27M ﹤0.01% 4354
2025
Q4 		$4.22M Sell
36,800
-37,000
-50% -$3.61M ﹤0.01% 3499
2025
Q3 		$6M Buy
73,800
+38,700
+110% +$3.14M ﹤0.01% 3152
2025
Q2 		$3.03M Buy
35,100
+25,200
+255% +$1.72M ﹤0.01% 3731
2025
Q1 		$515K Buy
+9,900
New +$562K ﹤0.01% 6804
2024
Q4 		– Sell
-20,900
Closed -$1.4M – 9356
2024
Q3 		$1.4M Buy
+20,900
New +$1.3M ﹤0.01% 5206
2023
Q4 		– Sell
-5,200
Closed -$214K – 9159
2023
Q3 		$214K Sell
5,200
-2,200
-30% -$97.8K ﹤0.01% 7528
2023
Q2 		$327K Sell
7,400
-700
-9% -$26.8K ﹤0.01% 6991
2023
Q1 		$320K Sell
8,100
-25,500
-76% -$963K ﹤0.01% 7085
2022
Q4 		$1M Buy
33,600
+24,400
+265% +$714K ﹤0.01% 4982
2022
Q3 		$245K Sell
9,200
-135,300
-94% -$3.77M ﹤0.01% 7865
2022
Q2 		$3.28M Buy
144,500
+27,900
+24% +$735K ﹤0.01% 3304
2022
Q1 		$3.13M Buy
116,600
+22,700
+24% +$526K ﹤0.01% 3861
2021
Q4 		$1.5M Buy
+93,900
New +$1.51M ﹤0.01% 5087
2021
Q3 		– Sell
-11,000
Closed -$229K – 9889
2021
Q2 		$229K Sell
11,000
-400
-4% -$9.17K ﹤0.01% 8608
2021
Q1 		$240K Hold
11,400
– – ﹤0.01% 8019
2020
Q4 		$191K Sell
11,400
-20,400
-64% -$259K ﹤0.01% 6971
2020
Q3 		$277K Buy
+31,800
New +$293K ﹤0.01% 5992
2018
Q4 		– Sell
-17,600
Closed -$520K – 4905
2018
Q3 		$520K Buy
+17,600
New +$473K ﹤0.01% 3574
2018
Q2 		– Sell
-13,000
Closed -$308K – 4943
2018
Q1 		$308K Buy
+13,000
New +$349K ﹤0.01% 3992

Other funds holding ATI

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Capital Research Global Investors
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
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
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Viking Global Investors
Viking Global Investors Stamford, Connecticut $35.7B AUM 21.3% 1-Year Est. Return

Jane Street's ATI Position: Q1 2026 in Review

Jane Street increased its ATI (ATI) stake by 438% in Q1 2026, buying an estimated $169M and bringing the position to 1,491,263 shares worth $217M. The position accounts for 0.03% of the portfolio, ranked #377.

Jane Street first reported a position in ATI in Q3 2013 and has held it in 42 quarters since. 674 funds tracked by Wall St. Rank hold ATI as of Q1 2026.

  • Jane Street held 1,491,263 shares of ATI worth $217M as of Q1 2026.
  • Jane Street bought 1,214,065 ATI shares in Q1 2026, an estimated $169M.
  • ATI made up 0.03% of Jane Street's portfolio in Q1 2026, its #377 holding.
  • Jane Street first reported a position in ATI in Q3 2013 and has held it in 42 quarters since.
  • 674 funds tracked by Wall St. Rank held ATI as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.