423 tracked 13F filers disclose a position in AMTM as of the latest SEC 13F filings, a combined $4.4B 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 | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | AMERICAN SECURITIES LLC | $1.2B | 45.0M | —Held | Q1 2026 | |
| 2 | BlackRock, Inc. | $465.3M | 17.8M | ▲+2.2% Added · +382K sh | Q1 2026 | |
| 3 | PRIMECAP MANAGEMENT CO/CA/ | $315.2M | 12.1M | ▼−0.3% Reduced · −42K sh | Q1 2026 | |
| 4 | Legacy Advisors, LLC | Withheld | 9.1M | ▲~0% Added · +1K sh | Q2 2026 | |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | $204.8M | 7.9M | →First observed position No prior filed position | Q1 2026 | |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | $173.5M | 6.7M | →First observed position No prior filed position | Q1 2026 | |
| 7 | FMR LLC | $145.5M | 5.6M | ▼−17% Reduced · −1.1M sh | Q1 2026 | |
| 8 | STATE STREET CORP | $106.5M | 5.2M | ▲+1.4% Added · +73K sh | Q2 2026 | |
| 9 | FRONTIER CAPITAL MANAGEMENT CO LLC | $85.7M | 4.1M | ▼−16% Reduced · −786K sh | Q2 2026 | |
| 10 | DIMENSIONAL FUND ADVISORS LP | $98.8M | 3.8M | ▲+107% Added · +2.0M sh | Q1 2026 | |
| 11 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $72.6M | 2.8M | ▲+42% Added · +823K sh | Q1 2026 | |
| 12 | GEODE CAPITAL MANAGEMENT, LLC | $56.2M | 2.7M | ▼−3.5% Reduced · −98K sh | Q2 2026 | |
| 13 | Focus Partners Wealth | $67.9M | 2.6M | ▼−6.8% Reduced · −190K sh | Q1 2026 | |
| 14 | BANK OF AMERICA CORP /DE/ | $62.7M | 2.4M | ▲+108% Added · +1.2M sh | Q1 2026 | |
| 15 | NORGES BANK | $66.5M | 2.3M | ▲+6.2% Added · +133K sh | Q4 2025 | |
| 16 | MORGAN STANLEY | $58.3M | 2.2M | ▲+7.7% Added · +160K sh | Q1 2026 | |
| 17 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $53.9M | 2.1M | ▲+5.9% Added · +116K sh | Q1 2026 | |
| 18 | SEGRA CAPITAL MANAGEMENT, LLC | $42.1M | 2.0M | ▲+26% Added · +425K sh | Q2 2026 | |
| 19 | Verition Fund Management LLC | $41.7M | 2.0M | ▲+56% Added · +721K sh | Q2 2026 | |
| 20 | UBS Group AG | $44.6M | 1.7M | ▲+730% Added · +1.5M sh | Q1 2026 | |
| 21 | Point72 Asset Management, L.P. | $42.5M | 1.6M | ▲+135% Added · +935K sh | Q1 2026 | |
| 22 | Ruane, Cunniff & Goldfarb L.P. | $42.3M | 1.6M | ▼−32% Reduced · −771K sh | Q1 2026 | |
| 23 | Permian Investment Partners, LP | $40.9M | 1.6M | ▲New +1.6M sh | Q1 2026 | |
| 24 | TORONTO DOMINION BANK | $40.8M | 1.6M | ▲New +1.6M sh | Q1 2026 | |
| 25 | BRIGHTLINE CAPITAL MANAGEMENT, LLC | $36.4M | 1.4M | ▲+0.3% Added · +4K 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, 5 funds opened a new position in AMTM and 32 added to an existing one, while 20 reduced and 0 exited entirely — 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 | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 233 funds | $207.0B |
| NVIDIA CORPNVDA | 228 funds | $299.8B |
| AMAZON.COM INCAMZN | 227 funds | $156.2B |
| ALPHABET INC-CL AGOOGL | 226 funds | $127.8B |
| APPLE INCAAPL | 220 funds | $219.4B |
| META PLATFORMS INC-CLASS AMETA | 220 funds | $90.7B |
| ALPHABET INC-CL CGOOG | 217 funds | $101.0B |
| VISA INC-CLASS A SHARESV | 217 funds | $54.7B |
| JPMORGAN CHASE & COJPM | 215 funds | $49.3B |
| BROADCOM INCAVGO | 213 funds | $118.1B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 212 funds | $30.3B |
| BANK OF AMERICA CORPBAC | 212 funds | $24.1B |
Ranked by how many of AMTM's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Feb 18, 2025 | Loughran Barbara | Director | Buy (P) | 5K | $98K |
| Feb 12, 2025 | DEMETRIOU STEVEN J. | Executive Chair, Director | Buy (P) | 100K | $2.1M |
Connected entities for AMTM
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/AMTM/capital-change-brief"
Use Arkolith's capital_change_brief for AMTM. 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 AMTM. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.