155 tracked 13F filers disclose a position in HRTX as of the latest SEC 13F filings, a combined $101.1M 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 | Rubric Capital Management LP | $24.0M | 30.0M | —Held | Q1 2026 | |
| 2 | Clearline Capital LP | $9.8M | 12.2M | —Held | Q1 2026 | |
| 3 | BlackRock, Inc. | $8.1M | 10.1M | ▼−1.1% Reduced · −112K sh | Q1 2026 | |
| 4 | ORBIMED ADVISORS LLC | $7.9M | 9.8M | ▲New +9.8M sh | Q1 2026 | |
| 5 | Velan Capital Investment Management LP | $3.7M | 8.8M | —Held | Q2 2026 | |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | $6.2M | 7.8M | →First observed position No prior filed position | Q1 2026 | |
| 7 | MILLENNIUM MANAGEMENT LLC | $6.1M | 7.6M | ▲+6.4% Added · +461K sh | Q1 2026 | |
| 8 | Tejara Capital Ltd | $2.8M | 6.5M | ▲+2.7% Added · +174K sh | Q2 2026 | |
| 9 | TANG CAPITAL MANAGEMENT LLC | $5.0M | 6.3M | —Held | Q1 2026 | |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | $1.8M | 4.3M | ▲+6.5% Added · +261K sh | Q2 2026 | |
| 11 | JW Asset Management, LLC | $1.6M | 3.8M | —Held | Q2 2026 | |
| 12 | STATE STREET CORP | $1.4M | 3.2M | ▼−16% Reduced · −615K sh | Q2 2026 | |
| 13 | D. E. Shaw & Co., Inc. | $2.1M | 2.6M | ▼−13% Reduced · −404K sh | Q1 2026 | |
| 14 | NEW YORK STATE COMMON RETIREMENT FUND | $2.1M | 2.6M | —Held | Q1 2026 | |
| 15 | Pale Fire Capital SE | $1.1M | 2.5M | ▼−7.5% Reduced · −205K sh | Q2 2026 | |
| 16 | UBS Group AG | $1.8M | 2.3M | ▲+9.3% Added · +194K sh | Q1 2026 | |
| 17 | Congress Park Capital LLC | $861K | 2.0M | ▼−50% Reduced · −2.0M sh | Q2 2026 | |
| 18 | Richmond Brothers, Inc. | $765K | 1.8M | ▲+25% Added · +356K sh | Q2 2026 | |
| 19 | RENAISSANCE TECHNOLOGIES LLC | $1.4M | 1.7M | ▼−10% Reduced · −198K sh | Q1 2026 | |
| 20 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $1.1M | 1.4M | ▼−2.8% Reduced · −39K sh | Q1 2026 | |
| 21 | VANGUARD PORTFOLIO MANAGEMENT LLC | $1.0M | 1.3M | →First observed position No prior filed position | Q1 2026 | |
| 22 | PANAGORA ASSET MANAGEMENT INC | $547K | 1.3M | ▲+33% Added · +319K sh | Q2 2026 | |
| 23 | NORTHERN TRUST CORP | $938K | 1.2M | ▲+7.4% Added · +81K sh | Q1 2026 | |
| 24 | VANGUARD FIDUCIARY TRUST CO | $922K | 1.2M | →First observed position No prior filed position | Q1 2026 | |
| 25 | GOLDMAN SACHS GROUP INC | $846K | 1.1M | ▲+6.8% Added · +67K 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 HRTX and 17 added to an existing one, while 10 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 | 71 funds | $190.7B |
| MICROSOFT CORPMSFT | 70 funds | $128.3B |
| AMAZON.COM INCAMZN | 69 funds | $88.4B |
| META PLATFORMS INC-CLASS AMETA | 68 funds | $53.9B |
| MICRON TECHNOLOGY INCMU | 68 funds | $18.6B |
| ORACLE CORPORCL | 68 funds | $9.2B |
| APPLE INCAAPL | 67 funds | $147.7B |
| BROADCOM INCAVGO | 67 funds | $76.9B |
| ALPHABET INC-CL AGOOGL | 67 funds | $69.9B |
| ALPHABET INC-CL CGOOG | 67 funds | $64.1B |
| ELI LILLY & COLLY | 67 funds | $38.6B |
| VISA INC-CLASS A SHARESV | 67 funds | $31.7B |
Ranked by how many of HRTX'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.
No filings captured for this ticker in the live stream yet.
Connected entities for HRTX
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/HRTX/capital-change-brief"
Use Arkolith's capital_change_brief for HRTX. 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 HRTX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.