// company-profile
Ati Inc
ATIExchangeNYSESectorSteel Pipe & TubesInc.DEFilings116Insiders22
// api This Ati Inc insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
Mixed insider activity over the last 30 days: 0 purchases and 0 sales (0 transactions total).
// 90-day insight
Over the last 90 days, Ati Inc insiders bought $0 across 9 transactions with no open-market sales.
- Most active insider: Fields Kimberly A with 13 transactions totaling $17.1M.
- Largest single sale: $4.6M by Fields Kimberly A on Jun 2, 2026.
- 100% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Ati Inc as of 2026-03-31
Total reported AUM
$17.22B
QoQ change
+33.6%
Reporting period
2026-03-31
#1
BlackRock, Inc.
CIK 2012383
$1.40B
9.7M shares
#2
Capital Research Global Investors
CIK 1422848
$896.0M
6.2M shares
#3
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
$890.8M
6.1M shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 2, 2026 | Fields Kimberly A | ATI | Sale10b5 | 1,896 | $180.80 | $343K |
| Jun 2, 2026 | Fields Kimberly A | ATI | Sale10b5 | 25,823 | $177.97 | $4.60M |
| Jun 2, 2026 | Fields Kimberly A | ATI | Sale10b5 | 13,164 | $179.71 | $2.37M |
| Jun 2, 2026 | Fields Kimberly A | ATI | Sale10b5 | 3,001 | $182.75 | $548K |
| Jun 2, 2026 | Fields Kimberly A | ATI | Sale10b5 | 2,000 | $181.90 | $364K |
45 more transactions hidden
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