ATI Physical Therapy, Inc.
ATI Physical Therapy, Inc. (ATIP) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · ATIP · as of Jun 30, 2025
Ownership Breakdown
1
Institutional Holders
$2.08M
Total Inst. Value
▼ $694,984 vs Q1
4.41M
Shares Outstanding
freeFloat 37.56%
2.32M
13F Shares Held
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
ATIP largest shareholders · institutional ownership
Q2 2025 · SEC 13F
Showing top 1 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
ADVENT INTERNATIONAL CORP/MA services-nursing & personal care facilities | 2.32M | 53.61% | 53.61% | $2.08B | Aug 14, 2025 | — held |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q2 2025 vs prior quarter
Q2 2025
0
Increased
+0 shares0
New Positions
first time holders0
Decreased
−0 shares0
Sold Out
fully exitedNet shares change (top 50)
+0
+0 / −0
Net new holders
+0
0 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
ATIP insider trading · insider activity
Source: SEC Form 4
0
Buy transactions
1
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Vitti Sharon Chief Executive Officer | May 12, 2025 | Tax Withhold | 1,611 | $0.85 | $1.4K | 84.3K | Form 4 ↗ |
Rundell Scott Interim CFO | Mar 22, 2025 | Tax Withhold | 707 | $1.21 | $855.47 | 5.0K | Form 4 ↗ |
Vitti Sharon Chief Executive Officer | Mar 22, 2025 | Tax Withhold | 10,026 | $1.21 | $12.1K | 85.9K | Form 4 ↗ |
Tansey Eimile Chief People Officer | Mar 22, 2025 | Tax Withhold | 3,393 | $1.21 | $4.1K | 25.5K | Form 4 ↗ |
Oakes Augustus Chief Information Officer | Mar 22, 2025 | Tax Withhold | 1,697 | $1.21 | $2.1K | 14.6K | Form 4 ↗ |
Kantz Erik Chief Legal Officer | Mar 22, 2025 | Tax Withhold | 1,697 | $1.21 | $2.1K | 13.0K | Form 4 ↗ |
Gregerson Scott Chief Growth Officer | Mar 22, 2025 | Tax Withhold | 3,910 | $1.21 | $4.7K | 22.1K | Form 4 ↗ |
Cox Christopher L Chief Operating Officer | Mar 22, 2025 | Tax Withhold | 6,794 | $1.21 | $8.2K | 46.3K | Form 4 ↗ |
Kantz Erik Chief Legal Officer | Mar 7, 2025 | Tax Withhold | 83 | $1.40 | $116.2 | 14.7K | Form 4 ↗ |
Oakes Augustus Chief Information Officer | Mar 7, 2025 | Tax Withhold | 166 | $1.40 | $232.4 | 16.3K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
ATI Physical Therapy, Inc. (ATIP) is primarily owned by institutional investors, who hold approximately 52.5% of total shares outstanding. Company insiders own approximately 62.44%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of ATI Physical Therapy, Inc. is ADVENT INTERNATIONAL CORP/MA, holding approximately 2.32 million shares — equal to 53.61% of outstanding shares — as of June 30, 2025.
A total of 1 institutional investors currently hold ATIP stock, with a combined institutional value of approximately $2,084,952 as of the most recent 13F filing period.
Frequently asked questions
ATIP ownershipATI Physical Therapy, Inc. (ATIP) is primarily owned by institutional investors, who hold approximately 52.5% of shares. The largest shareholder is ADVENT INTERNATIONAL CORP/MA with a 53.61% stake. Company insiders hold 62.44%. Data sourced from SEC Form 13F as of June 30, 2025.