31 tracked 13F filers disclose a position in NSPR as of the latest SEC 13F filings, a combined $21.5M 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 | Nantahala Capital Management, LLC | $2.4M | 3.4M | —Held | Q2 2026 | |
| 2 | Aberdeen Group plc | $5.2M | 3.2M | —Held | Q1 2026 | |
| 3 | ORBIMED ADVISORS LLC | $5.1M | 3.1M | —Held | Q1 2026 | |
| 4 | Parkman Healthcare Partners LLC | $3.9M | 2.4M | —Held | Q1 2026 | |
| 5 | MARSHALL WACE, LLP | $3.0M | 1.9M | —Held | Q1 2026 | |
| 6 | Soleus Capital Management, L.P. | $732K | 1.0M | —Held | Q2 2026 | |
| 7 | Affiance Financial, LLC | $175K | 250K | —Held | Q2 2026 | |
| 8 | Velan Capital Investment Management LP | $104K | 148K | ▼−93% Reduced · −2.0M sh | Q2 2026 | |
| 9 | MILLENNIUM MANAGEMENT LLC | $183K | 112K | ▼−9.4% Reduced · −12K sh | Q1 2026 | |
| 10 | Schonfeld Strategic Advisors LLC | $70K | 99K | ▲Added Added · +99K sh | Q2 2026 | |
| 11 | BlackRock, Inc. | $131K | 80K | ▲+32% Added · +20K sh | Q1 2026 | |
| 12 | CITADEL ADVISORS LLC | $107K | 66K | ▼−66% Reduced · −128K sh | Q1 2026 | |
| 13 | MORGAN STANLEY | $65K | 40K | ▼−4.8% Reduced · −2K sh | Q1 2026 | |
| 14 | NORTHERN TRUST CORP | $55K | 34K | —Held | Q1 2026 | |
| 15 | Mesirow Financial Investment Management, Inc. | $21K | 30K | —Held | Q2 2026 | |
| 16 | COURIER CAPITAL LLC | $21K | 30K | —Held | Q2 2026 | |
| 17 | Centiva Capital, LP | $40K | 25K | ▲New +25K sh | Q1 2026 | |
| 18 | VESTIA PERSONAL WEALTH ADVISORS | $17K | 24K | —Held | Q2 2026 | |
| 19 | Creative Planning | $32K | 20K | —Held | Q1 2026 | |
| 20 | RENAISSANCE TECHNOLOGIES LLC | $29K | 18K | ▲New +18K sh | Q1 2026 | |
| 21 | Avestar Capital, LLC | $11K | 15K | —Held | Q2 2026 | |
| 22 | XTX Topco Ltd | $20K | 12K | ▼−27% Reduced · −5K sh | Q1 2026 | |
| 23 | Pallas Capital Advisors LLC | $8K | 11K | ▼−15% Reduced · −2K sh | Q2 2026 | |
| 24 | OSAIC HOLDINGS, INC. | $17K | 10K | ▲+91% Added · +5K sh | Q1 2026 | |
| 25 | McKinley Carter Wealth Services, Inc. | $7K | 10K | —Held | Q2 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, 2 funds opened a new position in NSPR and 1 added to an existing one, while 5 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 |
|---|---|---|
| ELI LILLY & COLLY | 17 funds | $2.1B |
| UNITEDHEALTH GROUP INCUNH | 16 funds | $1.8B |
| NVIDIA CORPNVDA | 15 funds | $12.5B |
| APPLE INCAAPL | 15 funds | $10.5B |
| ALPHABET INC-CL AGOOGL | 15 funds | $5.3B |
| ALPHABET INC-CL CGOOG | 15 funds | $4.3B |
| MICRON TECHNOLOGY INCMU | 15 funds | $4.1B |
| TESLA INCTSLA | 15 funds | $4.0B |
| JPMORGAN CHASE & COJPM | 15 funds | $2.2B |
| CHEVRON CORPCVX | 15 funds | $2.2B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 15 funds | $1.9B |
| MERCK & CO. INC.MRK | 15 funds | $1.7B |
Ranked by how many of NSPR's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| May 27, 2026 | Stuka Paul | Director | Buy (P) | 20K | $18K |
| May 19, 2026 | Gleason Shane Thomas | Chief Commercial Officer | Sell (S) | 23K | $23K |
| May 14, 2026 | Stuka Paul | Director | Buy (P) | 5K | $6K |
| May 13, 2026 | Stuka Paul | Director | Buy (P) | 10K | $12K |
| May 12, 2026 | Slosman Marvin | CEO and President, Director | Buy (P) | 21K | $25K |
| May 11, 2026 | Stuka Paul | Director | Buy (P) | 10K | $12K |
| May 8, 2026 | Stuka Paul | Director | Buy (P) | 66K | $76K |
| May 7, 2026 | ROUBIN GARY S | Director | Buy (P) | 90K | $106K |
| May 7, 2026 | Stuka Paul | Director | Buy (P) | 6K | $7K |
| May 7, 2026 | Ward Scott R. | Director | Buy (P) | 73K | $84K |
| May 6, 2026 | Stuka Paul | Director | Buy (P) | 2K | $2K |
| May 6, 2026 | Ward Scott R. | Director | Buy (P) | 16K | $18K |
Connected entities for NSPR
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/NSPR/capital-change-brief"
Use Arkolith's capital_change_brief for NSPR. 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 NSPR. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.