Among active 13F managers last quarter, 10 opened and 23 added, while 17 reduced; the largest holder to move was Neuberger Berman Group LLC (−3.7%). No open-market insider trades in the last 180 days.
Funds lean in and no leg opposes.
188 tracked 13F filers disclose a position in AMSF as of the latest SEC 13F filings, a combined $579.7M 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. | 3.6M | $122.2M | ▲+10% Added · +339K sh | Q2 2026 | |
| 2 | Neuberger Berman Group LLC | 1.7M | $57.8M | ▼−3.7% Reduced · −67K sh | Q1 2026 | |
| 3 | Goldman Sachs Group Inc | 965K | $32.2M | ▲+39% Added · +269K sh | Q1 2026 | |
| 4 | State Street Corp | 824K | $27.9M | ▲+3.1% Added · +25K sh | Q2 2026 | |
| 5 | Vanguard Capital Management LLC | 823K | $27.8M | ▼−3.1% Reduced · −26K sh | Q2 2026 | |
| 6 | Charles Schwab Investment Management Inc | 721K | $24.0M | ▼−15% Reduced · −123K sh | Q1 2026 | |
| 7 | Geode Capital Management, LLC | 626K | $21.2M | ▲+8.7% Added · +50K sh | Q2 2026 | |
| 8 | Bank Of America Corp | 624K | $20.8M | ▲+6.7% Added · +39K sh | Q1 2026 | |
| 9 | Two Sigma Investments, LP | 475K | $15.8M | ▲+140% Added · +278K sh | Q1 2026 | |
| 10 | Dimensional Fund Advisors LP | 468K | $15.6M | ▼−5.1% Reduced · −25K sh | Q1 2026 | |
| 11 | Auto-Owners Insurance Co | 427K | $14.2M | —Held | Q1 2026 | |
| 12 | Citadel Advisors LLC | 376K | $12.7M | ▲+30% Added · +87K sh | Q2 2026 | |
| 13 | Qube Research & Technologies Ltd | 315K | $10.5M | ▲+35% Added · +81K sh | Q1 2026 | |
| 14 | Vanguard Portfolio Management LLC | 302K | $10.2M | ▲+5.0% Added · +14K sh | Q2 2026 | |
| 15 | Renaissance Technologies LLC | 261K | $8.7M | ▲+19% Added · +42K sh | Q1 2026 | |
| 16 | M&G Plc | 226K | $7.5M | ▼−17% Reduced · −46K sh | Q1 2026 | |
| 17 | ProShare Advisors LLC | 183K | $6.1M | ▲+12% Added · +20K sh | Q1 2026 | |
| 18 | Northern Trust Corp | 181K | $6.0M | ▲~0% Added · +65 sh | Q1 2026 | |
| 19 | Morgan Stanley | 177K | $5.9M | ▼−21% Reduced · −48K sh | Q1 2026 | |
| 20 | Teacher Retirement System Of Texas | 174K | $5.9M | ▼−4.2% Reduced · −8K sh | Q2 2026 | |
| 21 | Sei Investments Co | 139K | $4.6M | ▲+125% Added · +77K sh | Q1 2026 | |
| 22 | New South Capital Management Inc | 125K | $4.2M | ▲+0.9% Added · +1K sh | Q2 2026 | |
| 23 | Vanguard Fiduciary Trust Co | 124K | $4.2M | ▼−5.8% Reduced · −8K sh | Q2 2026 | |
| 24 | Granite Investment Partners, LLC | 124K | $4.2M | ▼−1.9% Reduced · −2K sh | Q2 2026 | |
| 25 | Barclays PLC | 123K | $4.1M | ▲+142% Added · +72K 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, 10 funds opened a new position in AMSF and 23 added to an existing one, while 17 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 |
|---|---|---|
| Nvidia CorpNVDA | 95 funds | $296.7B |
| Microsoft CorpMSFT | 95 funds | $191.6B |
| Eli Lilly & CoLLY | 94 funds | $61.9B |
| Costco Wholesale CorpCOST | 94 funds | $27.6B |
| JPMorgan Chase & CoJPM | 93 funds | $47.2B |
| Chevron CorpCVX | 93 funds | $22.2B |
| Meta Platforms Inc-Class AMETA | 92 funds | $81.2B |
| Tesla IncTSLA | 92 funds | $54.4B |
| Berkshire Hathaway Inc-CL BBRK/B | 92 funds | $27.6B |
| Wells Fargo & CoWFC | 92 funds | $14.7B |
| Apple IncAAPL | 91 funds | $214.2B |
| Amazon.com IncAMZN | 91 funds | $149.0B |
Ranked by how many of AMSF's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in AMSF.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Nov 20, 2025 | Omiridis Anastasios | EVP-CFO | Sell (S) | 1K | $50K |
| Nov 7, 2025 | Omiridis Anastasios | EVP-CFO | Sell (S) | 1K | $50K |
| Aug 5, 2025 | Omiridis Anastasios | EVP-CFO | Sell (S) | 1K | $60K |
| May 30, 2024 | Brown Michael J | Director | Buy (P) | 1K | $44K |
| Sep 8, 2023 | Omiridis Anastasios | EVP-CFO | Sell (S) | 3K | $170K |
| May 22, 2023 | McCray Andrew B. | EVP-CUO | Sell (S) | 978 | $53K |
| May 23, 2022 | Gagliano Vincent J. | EVP - Chief Risk Officer | Sell (S) | 4K | $179K |
| May 23, 2022 | Shirley Kathryn Housh | EVP - CAO | Sell (S) | 2K | $110K |
| May 23, 2022 | McCray Andrew B. | EVP-CUO | Sell (S) 2 lots, same day | 3K | $132K |
| May 23, 2022 | Fuller Neal Andrew | EVP-CFO | Sell (S) | 5K | $257K |
| May 23, 2022 | Frost G. Janelle | President & CEO, Director | Sell (S) | 10K | $505K |
| May 5, 2022 | McCray Andrew B. | EVP-CUO | Buy (P) | 200 | $9K |
One row per insider, day and transaction code; shares and value are summed across the lots. Every lot is on the full insider page and in the filing.
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 | 47 | 30 | – |
Insiders Form 4 open-market | 0 | 0 | $0 |
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.
Connected entities for AMSF
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/AMSF/capital-change-brief"
Use Arkolith's capital_change_brief for AMSF. 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 AMSF. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.