Among active 13F managers last quarter, 9 opened and 20 added, while 5 reduced; the largest holder to move was Arrowstreet Capital, Limited Partnership (+1.6%). Over the last 180 days, 5 insiders bought and none sold, a net +$55K in open-market trades.
Funds lean in and no leg opposes.
89 tracked 13F filers disclose a position in ATLO as of the latest SEC 13F filings, a combined $91.0M in reported value. 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.
| # | Fund | Shares | Position value | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 683K | $20.2M | ▲+12% Added · +74K sh | Q2 2026 | |
| 2 | Vanguard Capital Management LLC | 388K | $11.5M | ▼−3.1% Reduced · −13K sh | Q2 2026 | |
| 3 | Dimensional Fund Advisors LP | 273K | $7.7M | ▲+2.7% Added · +7K sh | Q1 2026 | |
| 4 | Geode Capital Management, LLC | 223K | $6.6M | ▲+10% Added · +21K sh | Q2 2026 | |
| 5 | State Street Corp | 205K | $6.1M | ▲+35% Added · +53K sh | Q2 2026 | |
| 6 | Arrowstreet Capital, Limited Partnership | 100K | $2.8M | ▲+1.6% Added · +2K sh | Q1 2026 | |
| 7 | Elizabeth Park Capital Advisors, Ltd. | 80K | $2.4M | —Held | Q2 2026 | |
| 8 | Northern Trust Corp | 70K | $2.0M | ▲+6.2% Added · +4K sh | Q1 2026 | |
| 9 | Vanguard Portfolio Management LLC | 61K | $1.8M | ▲+18% Added · +9K sh | Q2 2026 | |
| 10 | Vanguard Fiduciary Trust Co | 59K | $1.8M | ▲+5.9% Added · +3K sh | Q2 2026 | |
| 11 | LPL Financial LLC | 57K | $1.6M | ▼−1.4% Reduced · −798 sh | Q1 2026 | |
| 12 | Marshall Wace, LLP | 57K | $1.6M | ▲New +57K sh | Q1 2026 | |
| 13 | Morgan Stanley | 47K | $1.3M | ▼−12% Reduced · −6K sh | Q1 2026 | |
| 14 | Ames National Corp | 47K | $1.3M | —Held | Q2 2026 | |
| 15 | American Century Companies Inc | 45K | $1.3M | ▲+380% Added · +36K sh | Q1 2026 | |
| 16 | Goldman Sachs Group Inc | 44K | $1.3M | ▲+322% Added · +34K sh | Q1 2026 | |
| 17 | O'shaughnessy Asset Management, LLC | 43K | $1.3M | ▲+28% Added · +10K sh | Q2 2026 | |
| 18 | Connor, Clark & Lunn Investment Management Ltd. | 43K | $1.3M | ▲+60% Added · +16K sh | Q2 2026 | |
| 19 | Trexquant Investment LP | 41K | $1.2M | ▲+247% Added · +29K sh | Q2 2026 | |
| 20 | Citadel Advisors LLC | 39K | $1.2M | ▲Added Added · +39K sh | Q2 2026 | |
| 21 | Renaissance Technologies LLC | 38K | $1.1M | ▼−16% Reduced · −7K sh | Q1 2026 | |
| 22 | Ritholtz Wealth Management | 33K | $974K | ▲+5.7% Added · +2K sh | Q2 2026 | |
| 23 | AQR Capital Management LLC | 32K | $908K | ▲+6.7% Added · +2K sh | Q1 2026 | |
| 24 | Channel Wealth LLC | 31K | $926K | —Held | Q2 2026 | |
| 25 | Northwestern Mutual Wealth Management Co | 31K | $865K | ▼−1.1% Reduced · −358 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.
Last quarter, 9 funds opened a new position in ATLO and 20 added to an existing one, while 5 reduced. Based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Their position there |
|---|---|---|
| Microsoft CorpMSFT | 37 funds | $69.3B |
| Alphabet Inc-CL CGOOG | 37 funds | $32.5B |
| Alphabet Inc-CL AGOOGL | 36 funds | $41.2B |
| Eli Lilly & CoLLY | 36 funds | $18.5B |
| JPMorgan Chase & CoJPM | 36 funds | $15.0B |
| Berkshire Hathaway Inc-CL BBRK/B | 36 funds | $10.5B |
| Walmart IncWMT | 36 funds | $10.2B |
| Visa Inc-Class A SharesV | 36 funds | $9.4B |
| Bank Of America CorpBAC | 36 funds | $6.5B |
| McDonald's CorpMCD | 36 funds | $5.7B |
| Wells Fargo & CoWFC | 36 funds | $5.7B |
| Abbott LaboratoriesABT | 36 funds | $4.8B |
Ranked by how many of ATLO's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in ATLO.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Sep 9, 2026 | Baker Jeffery C | Director | Buy (P) | 300 | $10K |
| Aug 31, 2026 | Cassabaum Michelle R | Director | Buy (P) | 180 | $6K |
| Aug 20, 2026 | Beals Douglas W | Director | Buy (P) | 325 | $10K |
| Aug 14, 2026 | Schreier Richard | Insider | Buy (P) | 316 | $10K |
| Jul 31, 2026 | Cassabaum Michelle R | Director | Buy (P) | 140 | $4K |
| May 29, 2026 | Cassabaum Michelle R | Director | Buy (P) | 170 | $5K |
| May 15, 2026 | Hagan Patrick G | Director | Buy (P) | 200 | $6K |
| May 12, 2026 | Hagan Patrick G | Director | Buy (P) | 100 | $3K |
| Apr 30, 2026 | Cassabaum Michelle R | Director | Buy (P) | 84 | $2K |
| Feb 27, 2026 | Cassabaum Michelle R | Director | Buy (P) | 205 | $6K |
| Jan 30, 2026 | Cassabaum Michelle R | Director | Buy (P) | 280 | $7K |
| Dec 10, 2025 | Trost Scot A. | Director | Buy (P) | 200 | $5K |
Where institutional funds (13F), corporate insiders (Form 4) and US House members (STOCK Act) are buying or selling the same name in the same window. Green is buying, red is selling.
Insiders and Congress: last 180 days. Funds: latest 13F, top 100 holders incl. passive
| Source | Buying | Selling | Net |
|---|---|---|---|
13F funds Top 100 holders by value, passive included; the hero counts active managers only | 41 | 22 | – |
Insiders Form 4 open-market | 5 | 0 | +$55K |
US House STOCK Act trades | 0 | 0 | $0 |
Capital Rotation reports where institutional capital disclosed rotating, as of the latest public SEC 13F filings. It is data, not investment advice, a recommendation, or a prediction. Filings lag about 45 days and cover long US equity positions only. Past disclosed flows do not indicate future prices. Do your own research; consult a licensed advisor.
No filings captured for this ticker in the live stream yet.
Connected entities for ATLO
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/ATLO/capital-change-brief"
Use Arkolith's capital_change_brief for ATLO. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + the live filing stream, joined for ATLO. Filings are public domain, sourced to SEC EDGAR.