ATRO Institutional Ownership
Top institutional (13F) holders of ATRO and activist (13D/G) positions, sourced from SEC EDGAR.
Institutional owners
39
Institutional value
$1.52B
Top holder
BlackRock, Inc.
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Top holders
| Holder | Filed | Value |
|---|---|---|
| BlackRock, Inc.holding company | Aug 7, 2026 | $248.39M |
| STATE STREET CORPORATIONinvestment advisor | Sep 22, 2026 | $166.7M |
| Vanguard Capital Managementinvestment advisor | Aug 13, 2026 | $115.34M |
| UBS Group AGinvestment advisor | Aug 13, 2026 | $108.21M |
| Capital International Investorsinvestment advisor | Aug 12, 2026 | $107.64M |
| GEODE CAPITAL MANAGEMENT, LLCinvestment advisor | Aug 12, 2026 | $84.64M |
| Ameriprise Financial, Inc.holding company | Aug 14, 2026 | $57.68M |
| Dimensional Fund Advisors LPinvestment advisor | Aug 11, 2026 | $55.02M |
| Capital World Investorsinvestment advisor | Aug 12, 2026 | $46.86M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLPinvestment advisor | Aug 14, 2026 | $46.31M |
| GOLDMAN SACHS GROUP INCinvestment advisor | Aug 14, 2026 | $39.36M |
| MORGAN STANLEYinvestment advisor | Aug 13, 2026 | $34.34M |
| D. E. Shaw & Co., Inc.investment advisor | Aug 14, 2026 | $33.04M |
| Vanguard Portfolio Managementinvestment advisor | Aug 13, 2026 | $32.51M |
| Point72 Asset Management, L.P.investment advisor | Aug 14, 2026 | $27.17M |
| Fisher Asset Management, LLCinvestment advisor | Aug 4, 2026 | $27.14M |
| MILLENNIUM MANAGEMENT LLCinvestment advisor | Aug 14, 2026 | $26.42M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INCinvestment advisor | Aug 14, 2026 | $24.05M |
| T. Rowe Price Associates, Inc.investment advisor | Aug 14, 2026 | $22.88M |
| NORTHERN TRUST CORPinvestment advisor | Aug 13, 2026 | $21M |
| TWO SIGMA INVESTMENTS, LPinvestment advisor | Aug 14, 2026 | $20.7M |
| AQR CAPITAL MANAGEMENT LLCinvestment advisor | Aug 14, 2026 | $20.61M |
| ROYAL BANK OF CANADAinvestment advisor | Aug 14, 2026 | $15.9M |
| Norges Bankother | Aug 12, 2026 | $14.98M |
| Canada Pension Plan Investment Boardother | May 15, 2026 | $14.2M |
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Source: SEC EDGAR Schedule 13D / 13G and 13F filings.