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/SPRO/capital-change-brief"
Use Arkolith's capital_change_brief for SPRO. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT LLC | $4.2M | 1.8M | ▲New +1.8M sh | Q1 2026 | |
| 2 | RENAISSANCE TECHNOLOGIES LLC | $2.8M | 1.2M | ▼−7.0% Reduced · −90K sh | Q1 2026 | |
| 3 | Alphabet Inc. | $2.1M | 890K | —Held | Q1 2026 | |
| 4 | TWO SIGMA INVESTMENTS, LP | $2.1M | 886K | ▲+138% Added · +513K sh | Q1 2026 | |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | $1.2M | 520K | ▼−1.8% Reduced · −9K sh | Q1 2026 | |
| 6 | BlackRock, Inc. | $1.0M | 433K | ▼−0.1% Reduced · −414 sh | Q1 2026 | |
| 7 | Anson Funds Management LP | $987K | 422K | ▼−32% Reduced · −203K sh | Q1 2026 | |
| 8 | CITADEL ADVISORS LLC | $881K | 376K | ▼−5.4% Reduced · −21K sh | Q1 2026 | |
| 9 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $779K | 333K | ▲+13% Added · +39K sh | Q1 2026 | |
| 10 | VANGUARD FIDUCIARY TRUST CO | $618K | 264K | ▲New +264K sh | Q1 2026 | |
| 11 | STATE STREET CORP | $503K | 215K | ▲+2.2% Added · +5K sh | Q1 2026 | |
| 12 | Ionic Capital Management LLC | $458K | 196K | —Held | Q1 2026 | |
| 13 | Squarepoint Ops LLC | $455K | 194K | ▲+63% Added · +75K sh | Q1 2026 | |
| 14 | MARSHALL WACE, LLP | $368K | 157K | ▲New +157K sh | Q1 2026 | |
| 15 | NORTHERN TRUST CORP | $283K | 121K | —Held | Q1 2026 | |
| 16 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $269K | 115K | —Held | Q1 2026 | |
| 17 | JANE STREET GROUP, LLC | $249K | 106K | ▼−33% Reduced · −52K sh | Q1 2026 | |
| 18 | Shay Capital LLC | $165K | 70K | ▲+17% Added · +10K sh | Q1 2026 | |
| 19 | Point72 Asset Management, L.P. | $140K | 60K | ▲+37% Added · +16K sh | Q1 2026 | |
| 20 | Quadrature Capital Ltd | $94K | 40K | ▲+6.2% Added · +2K sh | Q1 2026 | |
| 21 | Capital Asset Advisory Services LLC | $92K | 33K | —Held | Q1 2026 | |
| 22 | DLK Investment Management, LLC | $41K | 31K | ▲New +31K sh | Q2 2026 | |
| 23 | SIMPLEX TRADING, LLC | $71K | 30K | ▼−15% Reduced · −5K sh | Q1 2026 | |
| 24 | DIMENSIONAL FUND ADVISORS LP | $69K | 30K | —Held | Q1 2026 | |
| 25 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $67K | 29K | —Held | 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.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jun 23, 2026 | Deshpande Milind | Director | Grant (A) | 10K | $0 |
| Jun 23, 2026 | Deshpande Milind | Director | Grant (A) | 20K | $0 |
| Jun 23, 2026 | Jackson Scott Thomas | Director | Grant (A) | 10K | $0 |
| Jun 23, 2026 | Jackson Scott Thomas | Director | Grant (A) | 20K | $0 |
| Jun 23, 2026 | Smith Cynthia | Director | Grant (A) | 10K | $0 |
| Jun 23, 2026 | Smith Cynthia | Director | Grant (A) | 20K | $0 |
| Jun 23, 2026 | THOMAS FRANK E | Director | Grant (A) | 10K | $0 |
| Jun 23, 2026 | THOMAS FRANK E | Director | Grant (A) | 20K | $0 |
| Jun 23, 2026 | VINK PATRICK V.J.J. | Director | Grant (A) | 10K | $0 |
| Jun 23, 2026 | VINK PATRICK V.J.J. | Director | Grant (A) | 20K | $0 |
| Jun 23, 2026 | Tregoning Kathleen | Director | Grant (A) | 10K | $0 |
| Jun 23, 2026 | Tregoning Kathleen | Director | Grant (A) | 20K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| AMAZON.COM INCAMZN | 12 funds | $4.7B |
| MICROSOFT CORPMSFT | 12 funds | $3.8B |
| ALPHABET INC-CL CGOOG | 12 funds | $1.7B |
| COSTCO WHOLESALE CORPCOST | 12 funds | $1.2B |
| VISA INC-CLASS A SHARESV | 12 funds | $1.1B |
| ELI LILLY & COLLY | 12 funds | $1.1B |
| ADVANCED MICRO DEVICESAMD | 12 funds | $885.7M |
| RTX CORPRTX | 12 funds | $875.1M |
| NETFLIX INCNFLX | 12 funds | $453.3M |
| AUTOMATIC DATA PROCESSINGADP | 12 funds | $248.1M |
| BRISTOL-MYERS SQUIBB COBMY | 12 funds | $196.5M |
| GENERAL MOTORS COGM | 12 funds | $166.7M |
Ranked by how many of SPRO's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for SPRO. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.