INFLARX NV IFRX
COM · Common Stock · CUSIP N44821101
- SectorHealth care
- IndustryPharmaceutical Preparations
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $0.79. Options: 4 managers hold calls ($103.9k notional), 2 hold puts ($0).
Trends to Q2 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 31 |
| Q4 2022 | 34 |
| Q1 2023 | 26 |
| Q2 2023 | 38 |
| Q3 2023 | 43 |
| Q4 2023 | 40 |
| Q1 2024 | 38 |
| Q2 2024 | 34 |
| Q3 2024 | 28 |
| Q4 2024 | 31 |
| Q1 2025 | 32 |
| Q2 2025 | 28 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2023 | 25 | 13 |
| Q4 2023 | 15 | 22 |
| Q1 2024 | 19 | 16 |
| Q2 2024 | 12 | 17 |
| Q3 2024 | 8 | 18 |
| Q4 2024 | 15 | 10 |
| Q1 2025 | 17 | 16 |
| Q2 2025 | 15 | 21 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $639.5k | $0 | 0.00 |
| Q4 2024 | $419.4k | $5.2k | 0.01 |
| Q1 2025 | $175.2k | $2.2k | 0.01 |
| Q2 2025 | $103.9k | $0 | 0.00 |
Biggest buyers
| RA CAPITAL MANAGEMENT, L.P. | New | +2.0m |
| Ikarian Capital, LLC | New | +705.0k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | New | +331.1k |
| Squarepoint Ops LLC | Added | +92.5k |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) | Added | +91.9k |
| Concurrent Investment Advisors, LLC | New | +82.7k |
| Virtu Financial LLC | New | +60.4k |
| GSA CAPITAL PARTNERS LLP | New | +58.0k |
| COMMONWEALTH EQUITY SERVICES, LLC | Added | +37.5k |
| HRT FINANCIAL LP | Added | +32.8k |
Biggest sellers
| SILVERARC CAPITAL MANAGEMENT, LLC | Sold out | -1.2m |
| STEMPOINT CAPITAL LP | Sold out | -725.0k |
| NORTHERN TRUST CORP | Sold out | -618.9k |
| MORGAN STANLEY | Reduced | -567.8k |
| CITADEL ADVISORS LLC | Sold out | -432.8k |
| DAFNA Capital Management LLC | Reduced | -250.0k |
| 683 Capital Management, LLC | Reduced | -150.0k |
| RAYMOND JAMES FINANCIAL INC | Reduced | -105.0k |
| FRANKLIN STREET ADVISORS INC /NC | Sold out | -75.1k |
| XTX Topco Ltd | Sold out | -37.5k |
Biggest calls
| GROUP ONE TRADING LLC | Reduced | $78.1k98.8k shares |
| CITADEL ADVISORS LLC | Reduced | $25.8k32.7k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
| SIMPLEX TRADING, LLC | Reduced | $0600 shares |
Biggest puts
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
| SIMPLEX TRADING, LLC | New | $0100 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| MONTANOVA CAPITAL, LLC 13G · passive investor +3.9 pts · filed 2026-08-14 | 15.6% |
| TCG Crossover GP III, LLC 13G · passive investor new · filed 2026-05-12 | 9.8% |
| Sirenia Capital Management LP 13G · institution new · filed 2026-08-14 | 6.1% |
| FMR LLC 13G · institution new · filed 2026-08-06 | 5.5% |
| Commodore Capital LP 13G · passive investor new · filed 2026-08-17 | 5.1% |
| Farallon Capital Partners, L.P. 13G · passive investor new · filed 2026-05-14 | 5.1% |
Fell to 5% or below in the last year: FARALLON CAPITAL MANAGEMENT, L.L.C. (2.3%, 2026-08-14; now reported by Farallon Capital Partners, L.P.)
Insider purchases and sales in Q2 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
None reported in Q2 2025.
Holders, Q2 2025
| Manager | Shares | Change |
|---|---|---|
| MONTANOVA CAPITAL, LLC 0.19% of their portfolio | 6.5m $5.1m | Unchanged |
| 683 Capital Management, LLC 0.20% of their portfolio | 2.5m $2.0m | Reduced -150.0k |
| RA CAPITAL MANAGEMENT, L.P. 0.03% of their portfolio | 2.0m $1.6m | New |
| Eversept Partners, LP 0.13% of their portfolio | 1.6m $1.3m | Reduced -35.5k |
| Woodline Partners LP 0.00% of their portfolio | 751.3k $593.5k | Added +283 |
| Ikarian Capital, LLC 0.18% of their portfolio | 705.0k $557.0k | New |
| MORGAN STANLEY 0.00% of their portfolio | 693.9k $548.1k | Reduced -567.8k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 527.2k $416.5k | Reduced -105.0k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.00% of their portfolio | 331.1k $261.6k | New |
| DAFNA Capital Management LLC 0.04% of their portfolio | 200.0k $158.0k | Reduced -250.0k |
| BOOTHBAY FUND MANAGEMENT, LLC 0.00% of their portfolio | 158.1k $124.9k | Unchanged |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) 0.00% of their portfolio | 150.0k $118.5k | Added +91.9k |
| Squarepoint Ops LLC 0.00% of their portfolio | 146.0k $115.4k | Added +92.5k |
| COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio | 144.0k $114.0k | Added +37.5k |
| Concurrent Investment Advisors, LLC 0.00% of their portfolio | 82.7k $65.3k | New |
| Virtu Financial LLC 0.00% of their portfolio | 60.4k $48.0k | New |
| GSA CAPITAL PARTNERS LLP 0.00% of their portfolio | 58.0k $46.0k | New |
| Birchview Capital, LP 0.04% of their portfolio | 50.0k $39.5k | Unchanged |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 43.7k $34.5k | Reduced -4.5k |
| HRT FINANCIAL LP 0.00% of their portfolio | 43.5k $34.0k | Added +32.8k |
| SIMPLEX TRADING, LLC 0.00% of their portfolio | 25.7k $20.0k | New |
| CIBC WORLD MARKET INC. 0.00% of their portfolio | 25.0k $19.8k | New |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 17.6k $13.9k | Reduced -3.5k |
| Pacifica Partners Inc. 0.00% of their portfolio | 14.2k $11.5k | Reduced -6.4k |
| UBS Group AG 0.00% of their portfolio | 8.1k $6.4k | New |
| NewEdge Advisors, LLC 0.00% of their portfolio | 2.2k $1.7k | Added +800 |
| CITIGROUP INC 0.00% of their portfolio | 1.3k $1.0k | Unchanged |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. — of their portfolio | 0 $0 | Unchanged |