50 tracked 13F filers disclose a position in JSPR as of the latest SEC 13F filings, a combined $12.2M 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 | Velan Capital Investment Management LP | $2.3M | 2.7M | —Held | Q1 2026 | |
| 2 | MILLENNIUM MANAGEMENT LLC | $1.4M | 1.6M | ▲+51% Added · +544K sh | Q1 2026 | |
| 3 | ACORN CAPITAL ADVISORS, LLC | $1.2M | 1.4M | ▼−21% Reduced · −375K sh | Q1 2026 | |
| 4 | KINGDON CAPITAL MANAGEMENT, L.L.C. | $1.2M | 1.4M | ▲New +1.4M sh | Q1 2026 | |
| 5 | MORGAN STANLEY | $1.2M | 1.3M | ▼−32% Reduced · −636K sh | Q1 2026 | |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | $1.0M | 1.2M | →First observed position No prior filed position | Q1 2026 | |
| 7 | Rock Springs Capital Management LP | $964K | 1.1M | —Held | Q1 2026 | |
| 8 | BOOTHBAY FUND MANAGEMENT, LLC | $511K | 583K | ▼−27% Reduced · −211K sh | Q1 2026 | |
| 9 | JACOBS LEVY EQUITY MANAGEMENT, INC | $282K | 322K | ▲+488% Added · +267K sh | Q1 2026 | |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | $278K | 318K | ▲+50% Added · +106K sh | Q1 2026 | |
| 11 | BANK OF AMERICA CORP /DE/ | $257K | 293K | ▲+0.1% Added · +232 sh | Q1 2026 | |
| 12 | Soleus Capital Management, L.P. | $242K | 276K | ▲+38% Added · +76K sh | Q1 2026 | |
| 13 | BlackRock, Inc. | $212K | 242K | ▲+2.5% Added · +6K sh | Q1 2026 | |
| 14 | RENAISSANCE TECHNOLOGIES LLC | $156K | 178K | ▼−22% Reduced · −50K sh | Q1 2026 | |
| 15 | VANGUARD FIDUCIARY TRUST CO | $131K | 150K | →First observed position No prior filed position | Q1 2026 | |
| 16 | ADAR1 Capital Management, LLC | $123K | 140K | —Held | Q1 2026 | |
| 17 | Quarry LP | $115K | 132K | ▲+32% Added · +32K sh | Q1 2026 | |
| 18 | UBS Group AG | $71K | 81K | ▼−36% Reduced · −45K sh | Q1 2026 | |
| 19 | Squarepoint Ops LLC | $57K | 65K | ▼−77% Reduced · −217K sh | Q1 2026 | |
| 20 | IEQ CAPITAL, LLC | $45K | 51K | ▲+2.0% Added · +1K sh | Q1 2026 | |
| 21 | MARSHALL WACE, LLP | $40K | 46K | ▲New +46K sh | Q1 2026 | |
| 22 | STATE STREET CORP | $39K | 45K | —Held | Q1 2026 | |
| 23 | OSAIC HOLDINGS, INC. | $36K | 41K | —Held | Q1 2026 | |
| 24 | XTX Topco Ltd | $35K | 39K | ▲New +39K sh | Q1 2026 | |
| 25 | DIKER MANAGEMENT LLC | $31K | 35K | ▲New +35K 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 JSPR and 7 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 | 11 funds | $2.6B |
| AMAZON.COM INCAMZN | 11 funds | $1.8B |
| TESLA INCTSLA | 11 funds | $961.5M |
| MICRON TECHNOLOGY INCMU | 11 funds | $914.8M |
| ELI LILLY & COLLY | 11 funds | $628.9M |
| CHEVRON CORPCVX | 11 funds | $364.0M |
| BANK OF AMERICA CORPBAC | 11 funds | $303.8M |
| BOSTON SCIENTIFIC CORPBSX | 11 funds | $175.2M |
| CONOCOPHILLIPSCOP | 11 funds | $153.8M |
| COLGATE-PALMOLIVE COCL | 11 funds | $64.5M |
| OCCIDENTAL PETROLEUM CORPOXY | 11 funds | $62.7M |
| PAYPAL HOLDINGS INCPYPL | 11 funds | $61.1M |
Ranked by how many of JSPR's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Sep 22, 2025 | Shizuru Judith Anne | Director | Buy (P) | 41K | $100K |
| Sep 22, 2025 | MARTELL RON | President and CEO, Director | Buy (P) | 41K | $100K |
| Sep 22, 2025 | Lucas Svetlana | Director | Buy (P) | 20K | $49K |
| Sep 22, 2025 | WIGGANS THOMAS G | Director | Buy (P) | 41K | $100K |
| Dec 12, 2024 | Mahal Jeetinder Singh | Chief Operating Officer | Sell (S) | 900 | $20K |
| Sep 12, 2024 | Mahal Jeetinder Singh | Chief Operating Officer | Sell (S) | 900 | $19K |
| Jun 12, 2024 | Mahal Jeetinder Singh | Chief Operating Officer | Sell (S) | 900 | $22K |
| Mar 12, 2024 | Mahal Jeetinder Singh | Chief Operating Officer | Sell (S) | 900 | $24K |
| Feb 8, 2024 | VENKATARAMAN BALAJI | 10% Owner | Buy (P) | 350K | $4.5M |
| Feb 8, 2024 | Abingworth LLP | 10% Owner | Buy (P) | 190K | $2.5M |
| Nov 28, 2023 | WIGGANS THOMAS G | Director | Buy (P) | 10K | $7K |
| Nov 21, 2023 | WIGGANS THOMAS G | Director | Buy (P) | 10K | $6K |
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/JSPR/capital-change-brief"
Use Arkolith's capital_change_brief for JSPR. 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 JSPR. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.