39 tracked 13F filers disclose a position in IFRX as of the latest SEC 13F filings, a combined $47.1M 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 | SUVRETTA CAPITAL MANAGEMENT, LLC | $7.1M | 7.9M | —Held | Q1 2026 | |
| 2 | Spruce Street Capital LP | $12.0M | 5.4M | ▲New +5.4M sh | Q2 2026 | |
| 3 | 683 Capital Management, LLC | $11.3M | 5.1M | ▲+53% Added · +1.8M sh | Q2 2026 | |
| 4 | Kalehua Capital Management LLC | $6.5M | 2.9M | ▲New +2.9M sh | Q2 2026 | |
| 5 | BANK OF AMERICA CORP /DE/ | $1.8M | 2.0M | ▼−20% Reduced · −500K sh | Q1 2026 | |
| 6 | Eversept Partners, LP | $2.9M | 1.3M | ▼−26% Reduced · −455K sh | Q2 2026 | |
| 7 | MORGAN STANLEY | $1.1M | 1.2M | ▲+11% Added · +114K sh | Q1 2026 | |
| 8 | Jefferies Financial Group Inc. | $1.7M | 775K | ▲New +775K sh | Q2 2026 | |
| 9 | MARSHALL WACE, LLP | $493K | 554K | ▲+98% Added · +274K sh | Q1 2026 | |
| 10 | RAYMOND JAMES FINANCIAL INC | $354K | 396K | ▲+1.0% Added · +4K sh | Q1 2026 | |
| 11 | Squarepoint Ops LLC | $270K | 302K | ▼−6.9% Reduced · −22K sh | Q1 2026 | |
| 12 | TWO SIGMA INVESTMENTS, LP | $169K | 189K | ▼−53% Reduced · −217K sh | Q1 2026 | |
| 13 | ADAR1 Capital Management, LLC | $142K | 158K | ▲New +158K sh | Q1 2026 | |
| 14 | Quadrature Capital Ltd | $348K | 155K | ▲Added Added · +155K sh | Q2 2026 | |
| 15 | Kestra Advisory Services, LLC | $213K | 95K | —Held | Q2 2026 | |
| 16 | XTX Topco Ltd | $80K | 89K | ▼−34% Reduced · −45K sh | Q1 2026 | |
| 17 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $69K | 77K | ▲+96% Added · +38K sh | Q1 2026 | |
| 18 | INSIGNEO ADVISORY SERVICES, LLC | $135K | 60K | —Held | Q2 2026 | |
| 19 | GEODE CAPITAL MANAGEMENT, LLC | $98K | 44K | —Held | Q2 2026 | |
| 20 | UBS Group AG | $27K | 30K | ▼−14% Reduced · −5K sh | Q1 2026 | |
| 21 | CITADEL ADVISORS LLC | $23K | 26K | ▼−58% Reduced · −37K sh | Q1 2026 | |
| 22 | Steward Partners Investment Advisory, LLC | $57K | 25K | ▲68× Added · +25K sh | Q2 2026 | |
| 23 | AXQ CAPITAL, LP | $41K | 18K | ▲New +18K sh | Q2 2026 | |
| 24 | China Universal Asset Management Co., Ltd. | $36K | 16K | ▲New +16K sh | Q2 2026 | |
| 25 | Engineers Gate Manager LP | $34K | 15K | —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, 9 funds opened a new position in IFRX and 3 added to an existing one, while 6 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 |
|---|---|---|
| AMAZON.COM INCAMZN | 20 funds | $6.4B |
| UNITEDHEALTH GROUP INCUNH | 20 funds | $1.6B |
| NVIDIA CORPNVDA | 19 funds | $9.3B |
| ELI LILLY & COLLY | 19 funds | $1.3B |
| MICROSOFT CORPMSFT | 18 funds | $4.2B |
| ADVANCED MICRO DEVICESAMD | 18 funds | $2.2B |
| INTUITIVE SURGICAL INCISRG | 18 funds | $1.6B |
| BOSTON SCIENTIFIC CORPBSX | 18 funds | $1.3B |
| INTEL CORPINTC | 18 funds | $1.2B |
| ABBOTT LABORATORIESABT | 18 funds | $1.2B |
| GILEAD SCIENCES INCGILD | 18 funds | $1.0B |
| GENERAL ELECTRICGE | 18 funds | $980.3M |
Ranked by how many of IFRX's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Feb 25, 2008 | Parliament Scott B | Chief Financial Officer, Director | Sell (S) | 5K | $1K |
| Feb 19, 2008 | Parliament Scott B | Chief Financial Officer, Director | Sell (S) | 3K | $891 |
Connected entities for IFRX
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/IFRX/capital-change-brief"
Use Arkolith's capital_change_brief for IFRX. 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 IFRX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.