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 ≈ $2.24. Options: 5 managers hold calls ($912.8k notional), 4 hold puts ($71.7k).
Trends to Q2 2026
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 |
| Q3 2025 | 27 |
| Q4 2025 | 34 |
| Q1 2026 | 35 |
| Q2 2026 | 62 |
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 2024 | 8 | 18 |
| Q4 2024 | 15 | 10 |
| Q1 2025 | 17 | 16 |
| Q2 2025 | 15 | 21 |
| Q3 2025 | 14 | 12 |
| Q4 2025 | 22 | 11 |
| Q1 2026 | 13 | 15 |
| Q2 2026 | 42 | 11 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $218.7k | $0 | 0.00 |
| Q4 2025 | $312.4k | $41.6k | 0.13 |
| Q1 2026 | $136.4k | $1.4k | 0.01 |
| Q2 2026 | $912.8k | $71.7k | 0.08 |
Biggest buyers
| MONTANOVA CAPITAL, LLC | Added | +15.0m |
| TCG Crossover Management, LLC | New | +14.5m |
| FMR LLC | New | +8.2m |
| Commodore Capital LP | New | +7.3m |
| Kalehua Capital Management LLC | New | +5.8m |
| Spruce Street Capital LP | New | +5.4m |
| STEMPOINT CAPITAL LP | New | +3.2m |
| GREAT POINT PARTNERS LLC | New | +3.0m |
| ADAR1 Capital Management, LLC | Added | +2.8m |
| AMERIPRISE FINANCIAL INC | New | +2.6m |
Biggest sellers
| BANK OF AMERICA CORP /DE/ | Sold out | -2.0m |
| Eversept Partners, LP | Reduced | -454.5k |
| MORGAN STANLEY | Reduced | -260.0k |
| GSA CAPITAL PARTNERS LLP | Sold out | -127.5k |
| Squarepoint Ops LLC | Reduced | -122.4k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | -34.3k |
| RAYMOND JAMES FINANCIAL INC | Reduced | -18.6k |
| Integrated Wealth Concepts LLC | Sold out | -10.0k |
| TWO SIGMA INVESTMENTS, LP | Reduced | -8.0k |
| Concurrent Investment Advisors, LLC | Reduced | -1.8k |
Biggest calls
| GROUP ONE TRADING LLC | Added | $353.2k157.7k shares |
| JANE STREET GROUP, LLC | Added | $208.8k93.2k shares |
| SIMPLEX TRADING, LLC | Added | $191.5k85.5k shares |
| CITADEL ADVISORS LLC | Reduced | $114.0k50.9k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | $45.2k20.2k shares |
Biggest puts
| JANE STREET GROUP, LLC | New | $30.0k13.4k shares |
| CITADEL ADVISORS LLC | New | $28.7k12.8k shares |
| SIMPLEX TRADING, LLC | New | $8.1k3.6k shares |
| GROUP ONE TRADING LLC | Added | $4.9k2.2k 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 since 1 Apr 2026
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 since 1 Apr 2026.
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| MONTANOVA CAPITAL, LLC 1.08% of their portfolio | 22.9m $51.4m | Added +15.0m |
| TCG Crossover Management, LLC 0.78% of their portfolio | 14.5m $32.5m | New |
| FMR LLC 0.00% of their portfolio | 8.2m $18.3m | New |
| Commodore Capital LP 0.97% of their portfolio | 7.3m $16.4m | New |
| Kalehua Capital Management LLC 4.14% of their portfolio | 5.8m $13.0m | New |
| Spruce Street Capital LP 2.35% of their portfolio | 5.4m $12.0m | New |
| 683 Capital Management, LLC 1.04% of their portfolio | 5.1m $11.3m | Added +1.8m |
| FARALLON CAPITAL MANAGEMENT, L.L.C. 0.04% of their portfolio | 3.3m $7.4m | Not comparable |
| STEMPOINT CAPITAL LP 1.25% of their portfolio | 3.2m $7.2m | New |
| GREAT POINT PARTNERS LLC 1.61% of their portfolio | 3.0m $6.8m | New |
| ADAR1 Capital Management, LLC 0.32% of their portfolio | 3.0m $6.7m | Added +2.8m |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 2.6m $5.8m | New |
| Woodline Partners LP 0.01% of their portfolio | 2.1m $4.7m | New |
| Squadron Capital Management LLC 1.53% of their portfolio | 2.0m $4.5m | New |
| Eversept Partners, LP 0.16% of their portfolio | 1.3m $2.9m | Reduced -454.5k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 1.0m $2.3m | New |
| MORGAN STANLEY 0.00% of their portfolio | 915.6k $2.1m | Reduced -260.0k |
| Jefferies Financial Group Inc. 0.02% of their portfolio | 775.3k $1.7m | New |
| MARSHALL WACE, LLP 0.00% of their portfolio | 711.3k $1.6m | Added +156.9k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 567.0k $1.3m | New |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 377.2k $844.8k | Reduced -18.6k |
| XTX Topco Ltd 0.01% of their portfolio | 335.3k $751.1k | Added +246.4k |
| T3 Companies, LLC 0.85% of their portfolio | 331.0k $741.5k | Added +40.0k |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 268.3k $601.0k | New |
| Verde Servicos Internacionais S.A. 0.21% of their portfolio | 251.0k $562.0k | New |
| DCF Advisers, LLC 0.13% of their portfolio | 228.5k $511.8k | Added +70.0k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 181.1k $405.7k | Reduced -8.0k |
| Squarepoint Ops LLC 0.00% of their portfolio | 179.6k $402.3k | Reduced -122.4k |
| Quadrature Capital Ltd 0.00% of their portfolio | 155.4k $348.1k | New |
| MYDA Advisors LLC 0.08% of their portfolio | 150.0k $336.0k | New |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 143.2k $320.8k | New |
| HRT FINANCIAL LP 0.00% of their portfolio | 143.2k $320.0k | Added +127.2k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 139.3k $312.0k | Added +113.3k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 131.8k $295.3k | Added +121.2k |
| Kestra Advisory Services, LLC 0.00% of their portfolio | 95.0k $212.8k | Unchanged |
| UBS Group AG 0.00% of their portfolio | 79.1k $177.3k | Added +49.3k |
| SIMPLEX TRADING, LLC 0.00% of their portfolio | 63.4k $142.0k | New |
| INSIGNEO ADVISORY SERVICES, LLC 0.01% of their portfolio | 60.2k $135.0k | Unchanged |
| Invesco Ltd. 0.00% of their portfolio | 43.9k $98.2k | New |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 43.7k $97.8k | Unchanged |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 42.8k $95.8k | Reduced -34.3k |
| FRED ALGER MANAGEMENT, LLC 0.00% of their portfolio | 42.5k $95.1k | New |
| Steward Partners Investment Advisory, LLC 0.00% of their portfolio | 25.4k $56.8k | Added +25.0k |
| AXQ CAPITAL, LP 0.00% of their portfolio | 18.2k $40.7k | New |
| China Universal Asset Management Co., Ltd. 0.00% of their portfolio | 16.0k $35.8k | New |
| Engineers Gate Manager LP 0.00% of their portfolio | 15.4k $34.5k | Unchanged |
| Pacifica Partners Inc. 0.01% of their portfolio | 14.2k $31.7k | Unchanged |
| Concurrent Investment Advisors, LLC 0.00% of their portfolio | 12.7k $28.3k | Reduced -1.8k |
| Sanctuary Advisors, LLC 0.00% of their portfolio | 11.0k $24.6k | Unchanged |
| COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio | 10.8k $24.2k | Unchanged |
| SG Americas Securities, LLC 0.00% of their portfolio | 10.1k $23.0k | New |
| Axiom Investment Management LLC 0.01% of their portfolio | 10.0k $22.4k | Unchanged |
| Persistent Asset Partners Ltd 0.00% of their portfolio | 3.7k $8.3k | New |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 3.2k $7.3k | Added +2.9k |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 2.9k $6.5k | New |
| NewEdge Advisors, LLC 0.00% of their portfolio | 2.2k $4.9k | Unchanged |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 2.0k $4.5k | New |
| JONES FINANCIAL COMPANIES LLLP 0.00% of their portfolio | 1.8k $3.4k | Unchanged |
| CITIGROUP INC 0.00% of their portfolio | 1.3k $2.9k | Reduced -1 |
| Keating Financial Advisory Services, Inc. 0.00% of their portfolio | 671 $1.5k | Unchanged |
| Quarry LP 0.00% of their portfolio | 663 $1.5k | New |
| Caitong International Asset Management Co., Ltd 0.00% of their portfolio | 83 $186 | New |