Institutional Holders (2026 Q2)
304 + investorsExplore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in ATRO. Verified SEC 13F-HR filings.
| # | Investor | % of Portfolio | Shares | Mkt Value |
|---|---|---|---|---|
| 1 | Caspian Capital LP | 13.19% | 285,965 | $23.2M |
| 2 | Pertento Partners LLP | 4.35% | 993,637 | $80.7M |
| 3 | Congruence Capital, LLC | 3.59% | 168,856 | $13.7M |
| 4 | Next Century Growth Investors LLC | 3.20% | 743,086 | $60.4M |
| 5 | Minerva Advisors LLC | 2.83% | 55,041 | $4.5M |
| 6 | Teton Advisors, LLC | 2.63% | 56,000 | $4.6M |
| 7 | Ophir Asset Management Pty Ltd | 2.58% | 385,791 | $31.3M |
| 8 | Blue Jean Financial LLC | 1.42% | 25,020 | $2.0M |
| 9 | Beacon Harbor Wealth Advisors, Inc. | 1.29% | 95,359 | $6.6M |
| 10 | Emerald Advisers, LLC | 0.98% | 513,984 | $41.8M |
| 11 | White Pine Capital LLC | 0.97% | 50,391 | $4.1M |
| 12 | Emerald Mutual Fund Advisers Trust | 0.93% | 327,295 | $26.6M |
| 13 | Ironwood Investment Management LLC | 0.83% | 29,430 | $2.4M |
| 14 | Needham Investment Management LLC | 0.67% | 272,500 | $22.1M |
| 15 | Nicholas Investment Partners, LP | 0.66% | 144,186 | $11.7M |
| 16 | SG Capital Management LLC | 0.60% | 89,151 | $7.2M |
| 17 | Informed Momentum Co LLC | 0.57% | 79,042 | $6.3M |
| 18 | Harvest Investment Services, LLC | 0.55% | 44,003 | $3.6M |
| 19 | Private Capital Management, LLC | 0.52% | 73,310 | $6.0M |
| 20 | Petra Financial Advisors Inc | 0.42% | 11,208 | $911K |
| 21 | Mark Sheptoff Financial Planning, LLC | 0.39% | 9,150 | $744K |
| 22 | Peregrine Capital Management LLC | 0.34% | 129,848 | $10.6M |
| 23 | RBF Capital, LLC | 0.34% | 100,372 | $8.2M |
| 24 | nVerses Capital, LLC | 0.34% | 2,684 | $218K |
| 25 | Westwood Holdings Group Inc | 0.26% | 430,281 | $35.0M |
| Investor | Ownership History |
% of Portfolio | Prev % | Rank | Conviction | Avg Buy Price | 13F Score™ 3Y / 7Y | Sell Timing | Shares | Mkt Value | Change | Change % | Source | Quarter | Filed |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|