532 tracked 13F filers disclose a position in RMBS as of the latest SEC 13F filings, a combined $8.1B 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 | BlackRock, Inc. | $1.4B | 16.3M | ▲+0.2% Added · +30K sh | Q1 2026 | |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | $571.6M | 6.6M | →First observed position No prior filed position | Q1 2026 | |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | $415.3M | 4.8M | →First observed position No prior filed position | Q1 2026 | |
| 4 | STATE STREET CORP | $519.5M | 3.9M | ▼−10% Reduced · −459K sh | Q2 2026 | |
| 5 | PRICE T ROWE ASSOCIATES INC /MD/ | $290.5M | 3.4M | ▼−37% Reduced · −2.0M sh | Q1 2026 | |
| 6 | FMR LLC | $285.5M | 3.3M | ▲+109% Added · +1.7M sh | Q1 2026 | |
| 7 | T. Rowe Price Investment Management, Inc. | Withheld | 2.4M | ▲+248% Added · +1.7M sh | Q1 2026 | |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | $305.1M | 2.3M | ▼−26% Reduced · −827K sh | Q2 2026 | |
| 9 | EdgePoint Investment Group Inc. | $167.6M | 1.9M | ▲+38% Added · +541K sh | Q1 2026 | |
| 10 | JPMORGAN CHASE & CO | $146.4M | 1.8M | ▼−11% Reduced · −229K sh | Q1 2026 | |
| 11 | DIMENSIONAL FUND ADVISORS LP | $154.4M | 1.8M | ▼−5.2% Reduced · −98K sh | Q1 2026 | |
| 12 | NORGES BANK | $156.4M | 1.7M | ▼−14% Reduced · −271K sh | Q4 2025 | |
| 13 | Swedbank AB | $134.5M | 1.6M | ▲+15% Added · +200K sh | Q1 2026 | |
| 14 | BANK OF AMERICA CORP /DE/ | $117.1M | 1.4M | ▲+8.9% Added · +112K sh | Q1 2026 | |
| 15 | NORTHERN TRUST CORP | $114.8M | 1.3M | ▲+1.4% Added · +19K sh | Q1 2026 | |
| 16 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $114.1M | 1.3M | ▼−0.1% Reduced · −1K sh | Q1 2026 | |
| 17 | Neuberger Berman Group LLC | $111.7M | 1.3M | ▼−0.3% Reduced · −4K sh | Q1 2026 | |
| 18 | CONGRESS ASSET MANAGEMENT CO | $109.8M | 1.3M | ▼−9.5% Reduced · −135K sh | Q1 2026 | |
| 19 | AQR CAPITAL MANAGEMENT LLC | $104.0M | 1.3M | ▲+76% Added · +539K sh | Q1 2026 | |
| 20 | MORGAN STANLEY | $104.4M | 1.2M | ▲+37% Added · +328K sh | Q1 2026 | |
| 21 | BARCLAYS PLC | $94.3M | 1.1M | ▲+7.1% Added · +73K sh | Q1 2026 | |
| 22 | CITIGROUP INC | $86.7M | 1.0M | ▲+100% Added · +505K sh | Q1 2026 | |
| 23 | Rafferty Asset Management, LLC | $130.7M | 984K | ▲+32% Added · +239K sh | Q2 2026 | |
| 24 | AMERIPRISE FINANCIAL INC | $83.9M | 975K | ▲+72% Added · +409K sh | Q1 2026 | |
| 25 | UBS Group AG | $82.3M | 956K | ▲+110% Added · +501K 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, 8 funds opened a new position in RMBS and 18 added to an existing one, while 27 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 |
|---|---|---|
| NVIDIA CORPNVDA | 307 funds | $421.2B |
| MICROSOFT CORPMSFT | 304 funds | $277.5B |
| AMAZON.COM INCAMZN | 303 funds | $214.2B |
| APPLE INCAAPL | 295 funds | $310.7B |
| META PLATFORMS INC-CLASS AMETA | 293 funds | $122.4B |
| ALPHABET INC-CL AGOOGL | 292 funds | $187.0B |
| BROADCOM INCAVGO | 291 funds | $163.2B |
| ELI LILLY & COLLY | 285 funds | $92.0B |
| MICRON TECHNOLOGY INCMU | 282 funds | $48.8B |
| JPMORGAN CHASE & COJPM | 281 funds | $67.2B |
| ALPHABET INC-CL CGOOG | 279 funds | $124.7B |
| MASTERCARD INC - AMA | 279 funds | $54.9B |
Ranked by how many of RMBS's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Aug 7, 2026 | KISSNER CHARLES | Director | Sell (S) | 5K | $505K |
| Jun 3, 2026 | Sayiner Necip | Director | Sell (S) | 5K | $851K |
| Jun 2, 2026 | Higashi Emiko | Director | Sell (S) | 5K | $815K |
| Jun 2, 2026 | Higashi Emiko | Director | Sell (S) | 5K | $790K |
| Jun 1, 2026 | STANG ERIC B | Director | Sell (S) | 5K | $730K |
| May 26, 2026 | FAN XIANZHI SEAN | EVP, COO | Sell (S) | 38K | $5.7M |
| May 26, 2026 | FAN XIANZHI SEAN | EVP, COO | Sell (S) | 100 | $15K |
| May 26, 2026 | Higashi Emiko | Director | Sell (S) | 5K | $788K |
| May 22, 2026 | Shinn John | SVP, General Counsel | Sell (S) | 1K | $144K |
| May 8, 2026 | Sayiner Necip | Director | Sell (S) | 10K | $1.3M |
| May 7, 2026 | LAUB STEVEN | Director | Sell (S) | 2K | $188K |
| Apr 24, 2026 | Rao Meera | Director | Sell (S) | 3K | $447K |
Connected entities for RMBS
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/RMBS/capital-change-brief"
Use Arkolith's capital_change_brief for RMBS. 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 RMBS. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.