Who owns IFRX
Which tracked institutional funds hold IFRX, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See IFRX company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-08-17). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on IFRX is one-sided between 2026-Q1 and 2026-Q2: 27 added or opened and 1 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
IFRX’s largest tracked holder by dollar value, MONTANOVA CAPITAL, LLC, sizes it at 1.1% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 1.1pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in IFRX divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 59 tracked filers holding IFRX, 41 increased or opened the position and 12 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in IFRX between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 15
- TCG Crossover Management, LLC$32M
- FMR LLC$18M
- Commodore Capital LP$16M
- Spruce Street Capital LP$12M
- FARALLON CAPITAL MANAGEMENT, L.L.C.$7M
- STEMPOINT CAPITAL LP$7M
Full exits 1
- BANK OF AMERICA CORP /DE/$2M
Largest adds
- MONTANOVA CAPITAL, LLC$44M
- 683 Capital Management, LLC$8M
- ADAR1 Capital Management, LLC$7M
- Eversept Partners, LP$1M
- MARSHALL WACE, LLP$1M
- MORGAN STANLEY$1,000K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| MONTANOVA CAPITAL, LLC added | 22,933,910 | $51M | 23.7% | 2026-Q2 |
| TCG Crossover Management, LLC new | 14,500,000 | $32M | 15.0% | 2026-Q2 |
| FMR LLC new | 8,163,341 | $18M | 8.4% | 2026-Q2 |
| Commodore Capital LP new | 7,300,000 | $16M | 7.5% | 2026-Q2 |
| Spruce Street Capital LP new | 5,352,198 | $12M | 5.5% | 2026-Q2 |
| 683 Capital Management, LLC added | 5,065,000 | $11M | 5.2% | 2026-Q2 |
| FARALLON CAPITAL MANAGEMENT, L.L.C. new | 3,325,000 | $7M | 3.4% | 2026-Q2 |
| STEMPOINT CAPITAL LP added | 3,228,255 | $7M | 3.3% | 2026-Q2 |
| GREAT POINT PARTNERS LLC new | 3,046,557 | $7M | 3.1% | 2026-Q2 |
| ADAR1 Capital Management, LLC added | 3,000,000 | $7M | 3.1% | 2026-Q2 |
| Kalehua Capital Management LLC new | 2,897,769 | $6M | 3.0% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC new | 2,572,799 | $6M | 2.7% | 2026-Q2 |
| Woodline Partners LP added | 2,105,486 | $5M | 2.2% | 2026-Q2 |
| Squadron Capital Management LLC new | 2,000,000 | $4M | 2.1% | 2026-Q2 |
| Eversept Partners, LP trimmed | 1,304,069 | $3M | 1.3% | 2026-Q2 |
| FRANKLIN RESOURCES INC new | 1,036,118 | $2M | 1.1% | 2026-Q2 |
| MORGAN STANLEY trimmed | 915,614 | $2M | 0.9% | 2026-Q2 |
| Jefferies Financial Group Inc. new | 775,349 | $2M | 0.8% | 2026-Q2 |
| MARSHALL WACE, LLP added | 711,296 | $2M | 0.7% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 567,049 | $1M | 0.6% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC trimmed | 377,163 | $845K | 0.4% | 2026-Q2 |
| XTX Topco Ltd added | 335,312 | $751K | 0.3% | 2026-Q2 |
| T3 Companies, LLC added | 331,014 | $741K | 0.3% | 2026-Q2 |
| Qube Research & Technologies Ltd new | 268,317 | $601K | 0.3% | 2026-Q2 |
| DCF Advisers, LLC added | 228,500 | $512K | 0.2% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP trimmed | 181,118 | $406K | 0.2% | 2026-Q2 |
| Squarepoint Ops LLC trimmed | 179,613 | $402K | 0.2% | 2026-Q2 |
| Quadrature Capital Ltd added | 155,416 | $348K | 0.2% | 2026-Q2 |
| MYDA Advisors LLC new | 150,000 | $336K | 0.2% | 2026-Q2 |
| JANE STREET GROUP, LLC trimmed | 143,226 | $321K | 0.1% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 139,290 | $312K | 0.1% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 131,838 | $295K | 0.1% | 2026-Q2 |
| Kestra Advisory Services, LLC | 95,000 | $213K | 0.1% | 2026-Q2 |
| UBS Group AG added | 79,133 | $177K | 0.1% | 2026-Q2 |
| SIMPLEX TRADING, LLC added | 63,405 | $142K | 0.1% | 2026-Q2 |
| INSIGNEO ADVISORY SERVICES, LLC | 60,250 | $135K | 0.1% | 2026-Q2 |
| Invesco Ltd. new | 43,851 | $98K | 0.0% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC | 43,672 | $98K | 0.0% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 42,784 | $96K | 0.0% | 2026-Q2 |
| FRED ALGER MANAGEMENT, LLC new | 42,468 | $95K | 0.0% | 2026-Q2 |
| Steward Partners Investment Advisory, LLC added | 25,375 | $57K | 0.0% | 2026-Q2 |
| AXQ CAPITAL, LP new | 18,154 | $41K | 0.0% | 2026-Q2 |
| China Universal Asset Management Co., Ltd. new | 16,000 | $36K | 0.0% | 2026-Q2 |
| Engineers Gate Manager LP | 15,397 | $34K | 0.0% | 2026-Q2 |
| Pacifica Partners Inc. | 14,210 | $32K | 0.0% | 2026-Q2 |
| Concurrent Investment Advisors, LLC trimmed | 12,651 | $28K | 0.0% | 2026-Q2 |
| Sanctuary Advisors, LLC | 11,000 | $25K | 0.0% | 2026-Q2 |
| COMMONWEALTH EQUITY SERVICES, LLC | 10,800 | $24K | 0.0% | 2026-Q2 |
| Axiom Investment Management LLC | 10,000 | $22K | 0.0% | 2026-Q2 |
| Persistent Asset Partners Ltd new | 3,707 | $8K | 0.0% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 3,222 | $7K | 0.0% | 2026-Q2 |
| Tower Research Capital LLC (TRC) new | 2,894 | $6K | 0.0% | 2026-Q2 |
| NewEdge Advisors, LLC | 2,200 | $5K | 0.0% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN | 2,000 | $4K | 0.0% | 2026-Q2 |
| JONES FINANCIAL COMPANIES LLLP | 1,784 | $3K | 0.0% | 2026-Q2 |
| CITIGROUP INC trimmed | 1,301 | $3K | 0.0% | 2026-Q2 |
| Keating Financial Advisory Services, Inc. | 671 | $2K | 0.0% | 2026-Q2 |
| Quarry LP new | 663 | $1K | 0.0% | 2026-Q2 |
| Caitong International Asset Management Co., Ltd new | 83 | $186 | 0.0% | 2026-Q2 |
| RA CAPITAL MANAGEMENT, L.P. | 1,973,233 | $3M | 1.2% | 2025-Q3 stale (3 quarters behind) |
| BANK OF AMERICA CORP /DE/ trimmed | 1,975,000 | $2M | 0.8% | 2026-Q1 stale (1 quarter behind) |
| Ikarian Capital, LLC added | 722,066 | $968K | 0.4% | 2025-Q3 stale (3 quarters behind) |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 331,113 | $444K | 0.2% | 2025-Q3 stale (3 quarters behind) |
| BOOTHBAY FUND MANAGEMENT, LLC added | 175,114 | $235K | 0.1% | 2025-Q3 stale (3 quarters behind) |
| DAFNA Capital Management LLC trimmed | 200,000 | $158K | 0.1% | 2025-Q2 stale (4 quarters behind) |
| GSA CAPITAL PARTNERS LLP added | 127,469 | $114K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| Birchview Capital, LP | 50,000 | $67K | 0.0% | 2025-Q3 stale (3 quarters behind) |
| Virtu Financial LLC new | 60,415 | $48K | 0.0% | 2025-Q2 stale (4 quarters behind) |
| GROUP ONE TRADING LLC new | 31,836 | $32K | 0.0% | 2025-Q4 stale (2 quarters behind) |
| CIBC WORLD MARKET INC. new | 25,000 | $20K | 0.0% | 2025-Q2 stale (4 quarters behind) |
| HRT FINANCIAL LP trimmed | 15,997 | $14K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| TWO SIGMA SECURITIES, LLC trimmed | 11,165 | $11K | 0.0% | 2025-Q4 stale (2 quarters behind) |
| Chung Wu Investment Group, LLC new | 9,000 | $9K | 0.0% | 2025-Q4 stale (2 quarters behind) |
| Integrated Wealth Concepts LLC | 10,000 | $9K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | — | 0.0% | 2025-Q2 stale (4 quarters behind) |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.