ATI

ATI INC

Data as of 2026 Q2 (06-30) · 13F snapshot

Summary

ATI INC (ATI) is held as common stock by 9 tracked hedge-fund managers, with a combined reported value of ~$862.09M; the largest are Steven Cohen, Andreas Halvorsen, Izzy Englander. 4 tracked managers also disclosed PUT or CALL positions, reported separately below. This quarter: 6 added, 3 trimmed. Data as of 2026 Q2, from public SEC 13F filings, delayed up to ~45 days.

Attention · HighThis quarter · Heating up

Common-stock holders94 also report options

Congress trades0

Price$180.67vs quarter-end-8.34%

Sectors0

This quarter's moves

New0

Added6

Trimmed / sold3

Top holder

Steven Cohen

Common-stock positions

PUT and CALL disclosures are excluded from these holder counts and values.

Steven CohenTrim

Value $244.47M0.4% of portfolio1,240,3482026 Q2

Andreas HalvorsenTrim

Value $227.43M0.6% of portfolio1,153,8802026 Q2

Investor	Period	Value	Shares	% of portfolio	Action
Steven Cohen	2026 Q2	$244.47M	1,240,348	0.4%	Trim
Andreas Halvorsen	2026 Q2	$227.43M	1,153,880	0.6%	Trim

PUT / CALL disclosures

Reported separately: 13F option values are not common-stock ownership and do not reveal the full strategy or economic exposure.

Ken GriffinCALL—

Value $22.49M— of portfolio114,1002026 Q2

Ken GriffinPUT—

Value $9.48M— of portfolio48,1002026 Q2

Paul Tudor JonesCALL—

Value $6.54M— of portfolio33,2002026 Q2

Paul Tudor JonesPUT—

Value $1.28M— of portfolio6,5002026 Q2

Izzy EnglanderCALL—

Value $1.10M— of portfolio5,6002026 Q2

Steven CohenCALL—

Value $1.08M— of portfolio5,5002026 Q2

Steven CohenPUT—

Value $611.0K— of portfolio3,1002026 Q2

Izzy EnglanderPUT—

Value $473.0K— of portfolio2,4002026 Q2

Investor	Period	Value	Shares	% of portfolio	Action
Ken GriffinCALL	2026 Q2	$22.49M	114,100	—	—
Ken GriffinPUT	2026 Q2	$9.48M	48,100	—	—
Paul Tudor JonesCALL	2026 Q2	$6.54M	33,200	—	—
Paul Tudor JonesPUT	2026 Q2	$1.28M	6,500	—	—
Izzy EnglanderCALL	2026 Q2	$1.10M	5,600	—	—
Steven CohenCALL	2026 Q2	$1.08M	5,500	—	—
Steven CohenPUT	2026 Q2	$611.0K	3,100	—	—
Izzy EnglanderPUT	2026 Q2	$473.0K	2,400	—	—

Insider Trading

Officers · directors · Form 4

Open-market purchases and sales (P/S)23

Timothy J Harris
Senior VP and CDIO
Sell$1.73M
9,000 @ $191.82Traded 2026-09-21Filed 2026-09-23
Timothy J Harris
Senior VP and CDIO
Sell$3.19M
16,500 @ $193.06Traded 2026-09-14Filed 2026-09-16
Timothy J Harris
Senior VP and CDIO
Sell$3.42M
16,500 @ $207.54Traded 2026-09-08Filed 2026-09-10
David J Morehouse
Director
Sell$501.0K
2,485 @ $201.61Traded 2026-09-02Filed 2026-09-04
Timothy J Harris
Senior VP and CDIO
Sell$3.47M
16,500 @ $210.01Traded 2026-08-31Filed 2026-09-02
Timothy J Harris
Senior VP and CDIO
Sell$3.41M
16,500 @ $206.92Traded 2026-08-24Filed 2026-08-26
Kimberly A Fields
Chair, President and CEO
Sell$228.3K
1,000 @ $228.32Traded 2026-08-17Filed 2026-08-19
Kimberly A Fields
Chair, President and CEO
Sell$1.07M
4,598 @ $232.43Traded 2026-08-17Filed 2026-08-19
Kimberly A Fields
Chair, President and CEO
Sell$2.11M
9,116 @ $231.72Traded 2026-08-17Filed 2026-08-19
Kimberly A Fields
Chair, President and CEO
Sell$1.88M
8,131 @ $230.66Traded 2026-08-17Filed 2026-08-19
Kimberly A Fields
Chair, President and CEO
Sell$459.1K
2,000 @ $229.56Traded 2026-08-17Filed 2026-08-19
Kimberly A Fields
Chair, President and CEO
Sell$6.07M
31,757 @ $190.99Traded 2026-07-28Filed 2026-07-30
Kimberly A Fields
Chair, President and CEO
Sell$71.8K
388 @ $185.10Traded 2026-07-08Filed 2026-07-09
Kimberly A Fields
Chair, President and CEO
Sell$75.0K
400 @ $187.50Traded 2026-07-08Filed 2026-07-09
Kimberly A Fields
Chair, President and CEO
Sell$899.2K
4,878 @ $184.34Traded 2026-07-08Filed 2026-07-09
Kimberly A Fields
Chair, President and CEO
Sell$2.92M
15,908 @ $183.50Traded 2026-07-08Filed 2026-07-09
Kimberly A Fields
Chair, President and CEO
Sell$2.16M
11,826 @ $182.66Traded 2026-07-08Filed 2026-07-09
Kimberly A Fields
Chair, President and CEO
Sell$399.0K
2,200 @ $181.36Traded 2026-07-08Filed 2026-07-09
Kimberly A Fields
Chair, President and CEO
Sell$36.2K
200 @ $180.85Traded 2026-07-08Filed 2026-07-09
Kimberly A Fields
Chair, President and CEO
Sell$358.5K
2,000 @ $179.25Traded 2026-07-08Filed 2026-07-09
Kimberly A Fields
Chair, President and CEO
Sell$746.0K
3,783 @ $197.21Traded 2026-06-22Filed 2026-06-24
Kimberly A Fields
Chair, President and CEO
Sell$719.0K
3,641 @ $197.48Traded 2026-06-22Filed 2026-06-24
Kimberly A Fields
Chair, President and CEO
Sell$2.69M
13,269 @ $202.48Traded 2026-06-22Filed 2026-06-24

Insider transactions are public SEC Form 4 disclosures (company officers, directors, 10% owners), for research only — not investment advice.

ARK ETF holdings

Cathie Wood · daily

ARK total shares held · drag to inspect

2026-09-29holds 444

PRNTweight in fund0.13%$80.2K

ARK publishes full ETF holdings daily (SEC Rule 6c-11). Line shows ARK's total shares held over time (not price); markers are buy/sell days. Derived from public CSVs — research only, not investment advice.

Public SEC 13F filings may appear up to 45 days after quarter-end; STOCK Act / OGE trade filings are generally due within 45 days but may be late. Partial data only — research, not investment advice.