Who owns NRx Pharmaceuticals, Inc. (NRXP)
Which tracked institutional funds hold NRXP, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See NRXP company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-15). 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
2 tracked funds added or opened NRXP while 2 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
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
NRXP’s largest tracked holder by dollar value, Anson Funds Management LP, sizes it at 1.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 1.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in NRXP 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 2025-Q4 and 2026-Q1, across 33 tracked filers holding NRXP, 24 increased or opened the position and 9 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 NRXP between the 2025-Q4 and 2026-Q1 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 2
- B Group, Inc.$6M
- VANGUARD CAPITAL MANAGEMENT LLC$2M
Full exits 2
- Anson Funds Management LP$8M
- VANGUARD GROUP INC$2M
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 |
|---|---|---|---|---|
| B Group, Inc. | 3,000,000 | $6M | 25.3% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 1,160,184 | $2M | 9.8% | 2026-Q1 |
| AdvisorShares Investments LLC added | 420,467 | $896K | 3.6% | 2026-Q1 |
| COMMONWEALTH EQUITY SERVICES, LLC added | 397,431 | $847K | 3.4% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 310,112 | $661K | 2.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 169,580 | $361K | 1.4% | 2026-Q1 |
| Bleakley Financial Group, LLC | 117,204 | $250K | 1.0% | 2026-Q1 |
| BlackRock, Inc. added | 98,995 | $211K | 0.8% | 2026-Q1 |
| STATE STREET CORP | 86,984 | $185K | 0.7% | 2026-Q1 |
| XTX Topco Ltd added | 78,733 | $168K | 0.7% | 2026-Q1 |
| Chicago Partners Investment Group LLC added | 34,479 | $102K | 0.4% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 44,152 | $94K | 0.4% | 2026-Q1 |
| NORTHERN TRUST CORP added | 43,469 | $93K | 0.4% | 2026-Q1 |
| Headlands Technologies LLC new | 39,394 | $84K | 0.3% | 2026-Q1 |
| AXQ CAPITAL, LP new | 33,211 | $71K | 0.3% | 2026-Q1 |
| Virtu Financial LLC added | 31,785 | $68K | 0.3% | 2026-Q1 |
| UBS Group AG added | 25,227 | $54K | 0.2% | 2026-Q1 |
| Schonfeld Strategic Advisors LLC trimmed | 19,876 | $42K | 0.2% | 2026-Q1 |
| Ethos Financial Group, LLC added | 15,900 | $34K | 0.1% | 2026-Q1 |
| SJBENEN ADVISORY, LLC | 15,000 | $32K | 0.1% | 2026-Q1 |
| MORGAN STANLEY trimmed | 10,028 | $21K | 0.1% | 2026-Q1 |
| SBI Securities Co., Ltd. | 2,500 | $5K | 0.0% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN added | 2,350 | $5K | 0.0% | 2026-Q1 |
| ROYAL BANK OF CANADA added | 2,509 | $5K | 0.0% | 2026-Q1 |
| SUMMIT SECURITIES GROUP LLC new | 1,135 | $2K | 0.0% | 2026-Q1 |
| GROUP ONE TRADING LLC trimmed | 737 | $2K | 0.0% | 2026-Q1 |
| WOLVERINE ASSET MANAGEMENT LLC added | 23,593 | $347 | 0.0% | 2026-Q1 |
| OSAIC HOLDINGS, INC. | 90 | $191 | 0.0% | 2026-Q1 |
| Tower Research Capital LLC (TRC) added | 81 | $173 | 0.0% | 2026-Q1 |
| JPMORGAN CHASE & CO | 34 | $71 | 0.0% | 2026-Q1 |
| Larson Financial Group LLC | 22 | $47 | 0.0% | 2026-Q1 |
| Steward Partners Investment Advisory, LLC | 1 | $2 | 0.0% | 2026-Q1 |
| Avion Wealth new | 294 | — | 0.0% | 2026-Q1 |
| Anson Funds Management LP added | 3,043,957 | $8M | 32.7% | 2025-Q4 stale |
| VANGUARD GROUP INC added | 729,842 | $2M | 7.8% | 2025-Q4 stale |
| MARSHALL WACE, LLP added | 189,136 | $624K | 2.5% | 2025-Q3 stale |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 128,175 | $423K | 1.7% | 2025-Q3 stale |
| CITADEL ADVISORS LLC added | 92,361 | $301K | 1.2% | 2025-Q2 stale |
| Squarepoint Ops LLC added | 42,202 | $138K | 0.5% | 2025-Q2 stale |
| Global Retirement Partners, LLC new | 39,300 | $107K | 0.4% | 2025-Q4 stale |
| One Wealth Management Investment & Advisory Services, LLC added | 37,873 | $103K | 0.4% | 2025-Q4 stale |
| TWO SIGMA INVESTMENTS, LP trimmed | 17,436 | $47K | 0.2% | 2025-Q4 stale |
| Point72 Asset Management, L.P. new | 15,979 | $43K | 0.2% | 2025-Q4 stale |
| TOWNSQUARE CAPITAL LLC | 15,041 | $31K | 0.1% | 2025-Q1 stale |
| BANK OF AMERICA CORP /DE/ trimmed | 3,239 | $9K | 0.0% | 2025-Q4 stale |
| RAYMOND JAMES FINANCIAL INC new | 2,571 | $8K | 0.0% | 2025-Q2 stale |
| TRUIST FINANCIAL CORP | 38,965 | $3K | 0.0% | 2025-Q2 stale |
| SIMPLEX TRADING, LLC added | 690 | $2K | 0.0% | 2025-Q2 stale |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 11,412 | $669 | 0.0% | 2025-Q4 stale |
| Carolina Wealth Advisors, LLC | 50 | $165 | 0.0% | 2025-Q3 stale |
| FMR LLC trimmed | 37 | $76 | 0.0% | 2025-Q1 stale |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | — | 0.0% | 2025-Q2 stale |
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.