| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $188.5M | 2.8M | ▲+1.0% Added · +27K sh | Q1 2026 | |
| 2 | STATE STREET CORP | $156.8M | 2.3M | ▲+28% Added · +518K sh | Q1 2026 | |
| 3 | AMERICAN CENTURY COMPANIES INC | $115.9M | 1.7M | ▼−1.5% Reduced · −27K sh | Q1 2026 | |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $92.7M | 1.4M | ▲New +1.4M sh | Q1 2026 | |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | $59.2M | 887K | ▲+17% Added · +131K sh | Q1 2026 | |
| 6 | DIMENSIONAL FUND ADVISORS LP | $45.0M | 674K | ▲+5.3% Added · +34K sh | Q1 2026 | |
| 7 | D. E. Shaw & Co., Inc. | $40.6M | 608K | ▲+23% Added · +115K sh | Q1 2026 | |
| 8 | Point72 Asset Management, L.P. | $37.9M | 567K | ▲+14% Added · +70K sh | Q1 2026 | |
| 9 | RAYMOND JAMES FINANCIAL INC | $31.5M | 493K | ▲+13% Added · +57K sh | Q1 2026 | |
| 10 | GOLDMAN SACHS GROUP INC | $30.4M | 455K | ▲+45% Added · +140K sh | Q1 2026 | |
| 11 | AMERIPRISE FINANCIAL INC | $30.1M | 451K | ▲+76% Added · +195K sh | Q1 2026 | |
| 12 | EMERALD ADVISERS, LLC | $30.0M | 449K | ▲+85% Added · +206K sh | Q1 2026 | |
| 13 | MORGAN STANLEY | $29.9M | 448K | ▼−19% Reduced · −104K sh | Q1 2026 | |
| 14 | Nuveen, LLC | $26.8M | 401K | ▼−0.6% Reduced · −3K sh | Q1 2026 | |
| 15 | BNP PARIBAS FINANCIAL MARKETS | $24.8M | 371K | ▼−17% Reduced · −73K sh | Q1 2026 | |
| 16 | VANGUARD PORTFOLIO MANAGEMENT LLC | $24.4M | 366K | ▲New +366K sh | Q1 2026 | |
| 17 | Fisher Asset Management, LLC | $23.3M | 349K | ▲+475% Added · +288K sh | Q1 2026 | |
| 18 | FRED ALGER MANAGEMENT, LLC | $21.7M | 325K | ▲+121% Added · +178K sh | Q1 2026 | |
| 19 | Private Capital Management, LLC | $21.5M | 323K | ▼−42% Reduced · −233K sh | Q1 2026 | |
| 20 | UBS Group AG | $19.4M | 291K | ▲+3.2% Added · +9K sh | Q1 2026 | |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $19.3M | 289K | ▼−1.4% Reduced · −4K sh | Q1 2026 | |
| 22 | EMERALD MUTUAL FUND ADVISERS TRUST | $18.6M | 279K | ▲+78% Added · +122K sh | Q1 2026 | |
| 23 | NEEDHAM INVESTMENT MANAGEMENT LLC | $18.2M | 273K | —Held | Q1 2026 | |
| 24 | NORTHERN TRUST CORP | $17.9M | 269K | ▲+3.0% Added · +8K sh | Q1 2026 | |
| 25 | CASPIAN CAPITAL LP | $17.9M | 268K | ▲+18% Added · +40K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| Company | Co-held by | Combined value |
|---|---|---|
| AMAZON.COM INCAMZN | 82 funds | $28.8B |
| ALPHABET INC-CL AGOOGL | 82 funds | $24.6B |
| APPLE INCAAPL | 80 funds | $44.4B |
| MICROSOFT CORPMSFT | 80 funds | $38.8B |
| META PLATFORMS INC-CLASS AMETA | 80 funds | $19.4B |
| ELI LILLY & COLLY | 80 funds | $10.7B |
| BROADCOM INCAVGO | 79 funds | $21.2B |
| TESLA INCTSLA | 79 funds | $12.1B |
| NETFLIX INCNFLX | 79 funds | $4.9B |
| SERVICENOW INCNOW | 79 funds | $3.7B |
| NVIDIA CORPNVDA | 78 funds | $56.4B |
| ALPHABET INC-CL CGOOG | 78 funds | $19.3B |
Ranked by how many of ATRO's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Dec 1, 2025 | Mulato James | Insider | Sell (S) | 10K | $518K |
| Sep 5, 2025 | Mulato James | Insider | Sell (S) | 129 | $5K |
| Sep 5, 2025 | Mulato James | Insider | Sell (S) | 1K | $38K |
| May 9, 2025 | Keane Robert S | Director | Sell (S) | 38K | $999K |
| May 8, 2025 | Keane Robert S | Director | Sell (S) | 200K | $5.4M |
| Mar 7, 2025 | Keane Robert S | Director | Sell (S) | 51K | $1.3M |
| Mar 7, 2025 | Keane Robert S | Director | Sell (S) | 26K | $639K |
| Dec 23, 2024 | PEABODY MARK | Executive VP & Pres-Aerospace | Sell (S) | 511 | $8K |
| Mar 14, 2024 | Kuehn Michael C | Executive Vice President | Sell (S) | 7K | $125K |
| Mar 4, 2024 | Keane Robert S | Director | Sell (S) | 1K | $20K |
| Mar 4, 2024 | Keane Robert S | Director | Sell (S) | 2K | $35K |
| Mar 1, 2024 | Keane Robert S | Director | Sell (S) | 33K | $622K |
| Class | 13F holders | Value held |
|---|---|---|
| ATROthis pagecs | 215 funds | $1.6B |
| ATRO 5.5 03/15/30NOTE 5.500% 3/1 | 3 funds | $66.4M |
| 046433207Common Stock | 2 funds | $118K |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/ATRO/capital-change-brief"
Use Arkolith's capital_change_brief for ATRO. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for ATRO. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.