DENDUR CAPITAL LP: ATI INC (ATI): Quarterly 13F Position History
As of Q1 2026, DENDUR CAPITAL LP reported 1,283,103 shares of ATI INC (ATI), worth $186.6M and representing 13.7% of its 13F equity book. Quarter-over-quarter share count change: 756,188 (-37.1%) . The position first appeared in Q3 2024 and has been disclosed across 7 13F-HR filings in Pactolio's tracked window.
- 1,283,103Shares Held (Latest Filing)
- $186.6MReported Market Value (Latest Filing)
- 13.7%Portfolio Weight (% of 13F Equity Book)
- 756,188Quarter-over-Quarter Share Change
- -$47.4MQuarter-over-Quarter Value Change
- 3,567,000Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 7 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 1,283,103 | 756,188 | -37.1% | $186.6M | 13.7% | $145.5 |
| Q4 2025 | 2,039,291 | 649,869 | -24.2% | $234.0M | 24.3% | $114.8 |
| Q3 2025 | 2,689,160 | 485,840 | -15.3% | $218.7M | 24.4% | $81.3 |
| Q2 2025 | 3,175,000 | 392,000 | -11.0% | $274.1M | 26.0% | $86.3 |
| Q1 2025 | 3,567,000 | 0 | — | $185.6M | 22.6% | $52.0 |
| Q4 2024 | 3,567,000 | +3,058,628 | +601.7% | $196.3M | 22.5% | $55.0 |
| Q3 2024 | 508,372 | — | — | $34.0M | 4.8% | $66.9 |
Methodology & FAQ
How This Position History Is Sourced
Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares — a quarter-end mark, not the manager's cost basis. See the full methodology document for the normalization rules.
When did DENDUR CAPITAL LP first disclose a ATI position in 13F-HR filings?
DENDUR CAPITAL LP first reported ATI INC (ATI) on its 13F-HR filing for the period ending 2024-09-30 (Q3 2024). The position has appeared on 7 reported quarters within Pactolio's tracked window.
What was DENDUR CAPITAL LP's most recent quarter-over-quarter share-count change in ATI?
Between Q4 2025 and Q1 2026, DENDUR CAPITAL LP reduced its ATI position by 756,188 shares (-37.1%), leaving 1,283,103 shares at a market value of $186.6M.
Does the implied price-per-share represent DENDUR CAPITAL LP's cost basis in ATI?
No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.