85 tracked 13F filers disclose a position in IMSR as of the latest SEC 13F filings, a combined $102.7M 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 | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | EXCHANGE TRADED CONCEPTS, LLC | $15.3M | 2.2M | ▲+3.3% Added · +69K sh | Q2 2026 | |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | $7.8M | 1.3M | →First observed position No prior filed position | Q1 2026 | |
| 3 | D. E. Shaw & Co., Inc. | $7.3M | 1.2M | ▲+13% Added · +135K sh | Q1 2026 | |
| 4 | BlackRock, Inc. | $6.7M | 1.1M | ▲+2.6% Added · +28K sh | Q1 2026 | |
| 5 | JPMORGAN CHASE & CO | $5.9M | 1.1M | ▼−8.3% Reduced · −97K sh | Q1 2026 | |
| 6 | Alyeska Investment Group, L.P. | $4.3M | 722K | —Held | Q1 2026 | |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | $4.9M | 694K | ▲+5.2% Added · +35K sh | Q2 2026 | |
| 8 | LMR Partners LLP | $4.1M | 691K | ▲+17% Added · +102K sh | Q1 2026 | |
| 9 | WINTON GROUP Ltd | $3.6M | 504K | ▲+1.6% Added · +8K sh | Q2 2026 | |
| 10 | UBS Group AG | $3.0M | 494K | ▼−3.7% Reduced · −19K sh | Q1 2026 | |
| 11 | Hudson Bay Capital Management LP | $2.7M | 452K | ▼−39% Reduced · −284K sh | Q1 2026 | |
| 12 | RENAISSANCE TECHNOLOGIES LLC | $2.4M | 408K | ▲+136% Added · +235K sh | Q1 2026 | |
| 13 | GOLDMAN SACHS GROUP INC | $2.4M | 396K | ▲+41% Added · +114K sh | Q1 2026 | |
| 14 | Verition Fund Management LLC | $2.7M | 375K | ▼−16% Reduced · −70K sh | Q2 2026 | |
| 15 | STATE STREET CORP | $2.5M | 347K | ▲+0.3% Added · +1K sh | Q2 2026 | |
| 16 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $2.0M | 338K | ▼−18% Reduced · −73K sh | Q1 2026 | |
| 17 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $2.0M | 330K | ▼−5.2% Reduced · −18K sh | Q1 2026 | |
| 18 | VANGUARD FIDUCIARY TRUST CO | $1.8M | 300K | →First observed position No prior filed position | Q1 2026 | |
| 19 | MORGAN STANLEY | $1.7M | 286K | ▲+133% Added · +163K sh | Q1 2026 | |
| 20 | HIGHBRIDGE CAPITAL MANAGEMENT LLC | $1.7M | 244K | ▲Added Added · +244K sh | Q2 2026 | |
| 21 | Magnetar Financial LLC | Withheld | 244K | —Held | Q2 2026 | |
| 22 | TORONTO DOMINION BANK | $1.4M | 226K | ▲+804% Added · +201K sh | Q1 2026 | |
| 23 | BALYASNY ASSET MANAGEMENT L.P. | $1.2M | 206K | ▼−85% Reduced · −1.2M sh | Q1 2026 | |
| 24 | Creek Drive Management Group LLC | $1.2M | 175K | ▼−47% Reduced · −155K sh | Q2 2026 | |
| 25 | Squarepoint Ops LLC | $1.0M | 173K | ▲+94% Added · +84K 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, 16 funds opened a new position in IMSR and 11 added to an existing one, while 8 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 | 40 funds | $32.0B |
| AMAZON.COM INCAMZN | 39 funds | $25.6B |
| MICRON TECHNOLOGY INCMU | 39 funds | $9.8B |
| NVIDIA CORPNVDA | 38 funds | $49.5B |
| ALPHABET INC-CL AGOOGL | 38 funds | $19.5B |
| META PLATFORMS INC-CLASS AMETA | 38 funds | $12.4B |
| ADVANCED MICRO DEVICESAMD | 37 funds | $7.2B |
| INTEL CORPINTC | 37 funds | $4.5B |
| UNITEDHEALTH GROUP INCUNH | 37 funds | $4.2B |
| UBER TECHNOLOGIES INCUBER | 37 funds | $2.1B |
| ELI LILLY & COLLY | 36 funds | $9.0B |
| TAIWAN SEMICONDUCTOR-SP ADRTSM | 36 funds | $5.8B |
Ranked by how many of IMSR's institutional holders also hold each name, a cross-fund conviction signal.
No open-market insider transactions on file yet. Grants, gifts, and exercises live on the full insider page.
| Class | 13F holders | Value held |
|---|---|---|
| IMSRthis pageStock | 85 funds | $103.4M |
| IMSRWStock | 22 funds | $30.8M |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
Connected entities for IMSR
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/IMSR/capital-change-brief"
Use Arkolith's capital_change_brief for IMSR. 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 IMSR. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.