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ATI
ATI INCIndustrialsAerospace & DefenseLatest close $1509 of 27 marquee funds currently hold2 CUSIPs mapped
Current holders
9
27 funds tracked
Ever held
12
Current + past
New this quarter
3
Exited this quarter
0
Marquee-fund ownership over time
Aug 14, 2014Nov 13, 2019Nov 14, 2024May 15, 2026
Now
9
This quarter's activity
New positions opened
Positions exited
None.
Current holders
Sorted by tenure (longest first)| Fund | First disclosed | Held | Entry price | Latest close | Return on entry |
|---|---|---|---|---|---|
| Bridgewater Associates re-entered | Q4 2015 | 43Q | $13 | $150 | +1087% |
| Citadel Advisors | Q3 2024(8Q snapshot) | 7Q | $63 | $150 | +136% |
| Soros Fund Management re-entered | Q3 2024(8Q snapshot) | 7Q | $63 | $150 | +136% |
| Two Sigma Investments re-entered | Q3 2024(8Q snapshot) | 7Q | $63 | $150 | +136% |
| D.E. Shaw re-entered | Q3 2024(8Q snapshot) | 7Q | $0.00 | $150 | — |
| AQR Capital Management | Q3 2024(8Q snapshot) | 7Q | $63 | $150 | +136% |
| Millennium Management | Q3 2024(8Q snapshot) | 7Q | $63 | $150 | +136% |
| Point72 Asset Management | Q3 2024(8Q snapshot) | 7Q | $63 | $150 | +136% |
| Viking Global Investors | Q2 2026 | 1Q | $154 | $150 | -3% |
“Return on entry” is the price-only move from the fund's first disclosure to today — it ignores any adds, trims, or dividends. A fund that built its position over multiple quarters has a true cost basis somewhere between entry price and latest close; this figure is the upper bound.
Past holders
Funds that exited at some point| Fund | Last entry | Exited | Entry → Exit | Return |
|---|---|---|---|---|
| Renaissance Technologies | Q3 2024 | Q1 2026 | → $140 | +124% |
| Maverick Capital | Q4 2019 | Q3 2020 | → $9.19 | -60% |
| Duquesne Family Office | Q3 2014 | Q4 2014 | → $31 | -21% |
Insider activity
Form 4 — officers, directors, 10%+ ownersFiled within two business days of each transaction by anyone with material insider status at ATI INC. Pair with the holders table above as a sanity check: heavy insider buying alongside marquee-fund accumulation is the strongest accumulation signal; heavy insider selling alongside fund exits is the strongest distribution signal.
Filings · last 30d
11
Filings · last 90d
13
Total on file
483
Recent SEC buffer
Most recent
Jun 4, 2026
30d / 90d windows measured from Jun 4, 2026 — the most recent Form 4 on file — not from today.
- Form 40001773072-26-000002Jun 4, 2026
- Form 40001880428-26-000002May 21, 2026
- Form 40001635153-26-000001May 21, 2026
- Form 40002096540-26-000001May 21, 2026
- Form 40002095590-26-000001May 21, 2026
- Form 40001779021-26-000001May 21, 2026
- Form 40001304945-26-000001May 21, 2026
- Form 40001465541-26-000005May 21, 2026
- Form 40001732898-26-000001May 21, 2026
- Form 40001229771-26-000011May 21, 2026
- Form 40001193125-26-220013May 12, 2026
- Form 40001193125-26-121258Mar 24, 2026
- Form 40001193125-26-102473Mar 11, 2026
- Form 40001193125-26-089618Mar 3, 2026
- Form 40001193125-26-059487Feb 19, 2026
Showing 15 of 483 recent Form 4 filings. Browse all on EDGAR ↗
Fundamentals
XBRL · ATI INCAnnual figures sourced directly from ATI INC's 10-K / 10-Q filings via SEC EDGAR XBRL. Latest fiscal year and the year-over-year change, with up to ten years of history.
Revenue
$4.59B
FY2025+5% YoY
Net income
$404.3M
FY2025+10% YoY
EPS (diluted)
$2.85
FY2025+12% YoY
Free cash flow(?)
$614.3M
FY2025+51% YoY
Recent SEC filings
10-K · 10-Q · 8-K · 13D/G · proxyThe most recent material filings for ATI INC — earnings, material events, ownership disclosures, proxy statements. Form 4 insider activity is shown in the panel above.
- 8-KMaterial eventJun 8, 2026
- 8-KMaterial eventJun 3, 2026
- 8-KMaterial eventJun 3, 2026
- 8-KMaterial eventMay 19, 2026
- 10-QQuarterly reportApr 30, 2026
- 8-KMaterial eventApr 30, 2026
- DEF 14AProxy statementMar 24, 2026
- 10-KAnnual reportFeb 20, 2026
- 8-KMaterial eventFeb 19, 2026
- 8-KMaterial eventFeb 3, 2026
- 8-KMaterial eventDec 8, 2025
- 8-KMaterial eventNov 18, 2025
- 10-QQuarterly reportOct 28, 2025
- 8-KMaterial eventOct 28, 2025
- 8-KMaterial eventSep 25, 2025
Trade history
Every open→close lifecycle across tracked funds| Fund | Open date | Close date | Open price | Close price / current | Return |
|---|---|---|---|---|---|
| Bridgewater Associates | Q2 2026 | open | $154 | $180 | +16% |
| Soros Fund Management | Q2 2026 | open | $154 | $150 | -3% |
| Viking Global Investors | Q2 2026 | open | $154 | $180 | +16% |
| Two Sigma Investments | Q1 2026 | open | $147 | $150 | +2% |
| Bridgewater Associates | Q4 2025 | Q1 2026 | $99 | $144 | +46% |
| Bridgewater Associates | Q1 2025 | Q3 2025 | $61 | $75 | +23% |
| Citadel Advisors | Q3 2024 | open | $63 | $150 | +136% |
| Soros Fund Management | Q3 2024 | Q4 2025 | $63 | $99 | +57% |
| Two Sigma Investments | Q3 2024 | Q4 2025 | $63 | $99 | +57% |
| D.E. Shaw | Q3 2024 | Q4 2024 | $0.00 | — | +0% |
| D.E. Shaw | Q3 2024 | open | $63 | $150 | +136% |
| AQR Capital Management | Q3 2024 | open | $63 | $150 | +136% |
| Millennium Management | Q3 2024 | open | $63 | $150 | +136% |
| Point72 Asset Management | Q3 2024 | open | $63 | $150 | +136% |
| Renaissance Technologies | Q3 2024 | Q1 2026 | $62 | $140 | +124% |
| Bridgewater Associates | Q3 2020 | Q2 2021 | $9.32 | $23 | +146% |
| Maverick Capital | Q4 2019 | Q3 2020 | $23 | $9.19 | -60% |
| Bridgewater Associates | Q4 2019 | Q2 2020 | $23 | $6.87 | -70% |
| Bridgewater Associates | Q1 2019 | Q2 2019 | $28 | $23 | -18% |
| Bridgewater Associates | Q3 2018 | Q4 2018 | $26 | $27 | +4% |
| Bridgewater Associates | Q4 2015 | Q1 2016 | $13 | $9.33 | -26% |
| Duquesne Family Office | Q3 2014 | Q4 2014 | $39 | $31 | -21% |
Caveats
- Covers only the 27 marquee funds tracked here, not the full institutional universe. A “0 holders” reading does not mean unowned.
- Heavy funds (Renaissance Technologies, Citadel Advisors, Soros Fund Management, Two Sigma Investments, D.E. Shaw, AQR Capital Management, Millennium Management, Point72 Asset Management) use 8-quarter snapshots, so their pre-2024 history is missing.
- “Current” reflects each fund's most recent 13F — filings lag the actual trade by up to 45 days; positions shown may have changed since.
- Cost = price at the entry filing date. Re-entered positions show the most recent open lot.
- Options, ADRs, and unmapped CUSIPs are excluded from the follower-backtest pipeline that produces these snapshots, so certain holding types won't appear here.