John Overdeck’s ATI ATI Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $125M | Buy |
636,671
+618,896
| +3,482% | +$105M | 0.09% | 250 |
|
|
2026
Q1 | $2.59M | Buy |
17,775
+15,808
| +804% | +$2.2M | ﹤0.01% | 2571 |
|
|
2025
Q4 | $226K | Buy |
+1,967
| New | +$192K | ﹤0.01% | 3717 |
|
|
2025
Q3 | – | Sell |
-256,653
| Closed | -$22.2M | – | 3649 |
|
|
2025
Q2 | $22.2M | Buy |
256,653
+119,205
| +87% | +$8.16M | 0.04% | 515 |
|
|
2025
Q1 | $7.15M | Sell |
137,448
-99,502
| -42% | -$5.65M | 0.02% | 936 |
|
|
2024
Q4 | $13M | Sell |
236,950
-634,425
| -73% | -$37.4M | 0.03% | 645 |
|
|
2024
Q3 | $58.3M | Sell |
871,375
-197,849
| -19% | -$12.3M | 0.13% | 197 |
|
|
2024
Q2 | $59.3M | Buy |
1,069,224
+462,619
| +76% | +$25.9M | 0.14% | 175 |
|
|
2024
Q1 | $31M | Buy |
606,605
+165,296
| +37% | +$7.47M | 0.07% | 320 |
|
|
2023
Q4 | $20.1M | Buy |
441,309
+398,342
| +927% | +$16.5M | 0.05% | 418 |
|
|
2023
Q3 | $1.77M | Sell |
42,967
-5,489
| -11% | -$244K | ﹤0.01% | 1491 |
|
|
2023
Q2 | $2.14M | Sell |
48,456
-75,895
| -61% | -$2.9M | 0.01% | 1391 |
|
|
2023
Q1 | $4.91M | Sell |
124,351
-22,855
| -16% | -$863K | 0.01% | 920 |
|
|
2022
Q4 | $4.4M | Sell |
147,206
-140,367
| -49% | -$4.11M | 0.01% | 914 |
|
|
2022
Q3 | $7.65M | Buy |
287,573
+200,634
| +231% | +$5.59M | 0.03% | 591 |
|
|
2022
Q2 | $1.97M | Sell |
86,939
-569,784
| -87% | -$15M | 0.01% | 1216 |
|
|
2022
Q1 | $17.6M | Buy |
656,723
+540,933
| +467% | +$12.5M | 0.05% | 418 |
|
|
2021
Q4 | $1.84M | Sell |
115,790
-56,977
| -33% | -$915K | ﹤0.01% | 1994 |
|
|
2021
Q3 | $2.87M | Buy |
172,767
+46,293
| +37% | +$876K | 0.01% | 1648 |
|
|
2021
Q2 | $2.64M | Sell |
126,474
-808,857
| -86% | -$18.5M | 0.01% | 1655 |
|
|
2021
Q1 | $19.7M | Sell |
935,331
-72,587
| -7% | -$1.42M | 0.05% | 442 |
|
|
2020
Q4 | $16.9M | Buy |
1,007,918
+88,769
| +10% | +$1.13M | 0.05% | 422 |
|
|
2020
Q3 | $8.02M | Buy |
919,149
+297,875
| +48% | +$2.74M | 0.03% | 581 |
|
|
2020
Q2 | $6.33M | Sell |
621,274
-63,166
| -9% | -$548K | 0.03% | 551 |
|
|
2020
Q1 | $5.82M | Buy |
684,440
+418,667
| +158% | +$6.69M | 0.05% | 438 |
|
|
2019
Q4 | $5.49M | Buy |
265,773
+244,826
| +1,169% | +$5.31M | 0.02% | 903 |
|
|
2019
Q3 | $424K | Sell |
20,947
-162,812
| -89% | -$3.44M | ﹤0.01% | 2686 |
|
|
2019
Q2 | $4.63M | Sell |
183,759
-95,477
| -34% | -$2.33M | 0.02% | 934 |
|
|
2019
Q1 | $7.14M | Buy |
279,236
+258,728
| +1,262% | +$6.81M | 0.02% | 810 |
|
|
2018
Q4 | $446K | Sell |
20,508
-42,786
| -68% | -$1.11M | ﹤0.01% | 2182 |
|
|
2018
Q3 | $1.87M | Buy |
+63,294
| New | +$1.7M | 0.01% | 1526 |
|
|
2016
Q3 | – | Sell |
-270,637
| Closed | -$3.45M | – | 3078 |
|
|
2016
Q2 | $3.45M | Buy |
270,637
+194,971
| +258% | +$2.79M | 0.01% | 953 |
|
|
2016
Q1 | $1.23M | Sell |
75,666
-495,063
| -87% | -$6.03M | 0.01% | 1480 |
|
|
2015
Q4 | $6.42M | Buy |
+570,729
| New | +$7.85M | 0.03% | 589 |
|
Other funds holding ATI
John Overdeck's ATI Position: Q2 2026 in Review
John Overdeck increased its ATI (ATI) stake by 3,482% in Q2 2026, buying an estimated $105M and bringing the position to 636,671 shares worth $125M. The position accounts for 0.09% of the portfolio, ranked #250.
John Overdeck first reported a position in ATI in Q4 2015 and has held it in 34 quarters since. 788 funds tracked by Wall St. Rank hold ATI as of Q2 2026.
- John Overdeck held 636,671 shares of ATI worth $125M as of Q2 2026.
- John Overdeck bought 618,896 ATI shares in Q2 2026, an estimated $105M.
- ATI made up 0.09% of John Overdeck's portfolio in Q2 2026, its #250 holding.
- John Overdeck first reported a position in ATI in Q4 2015 and has held it in 34 quarters since.
- 788 funds tracked by Wall St. Rank held ATI as of Q2 2026.
Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.