NEUPHORIA THERAPEUTICS INC NEUP
COM · Common Stock · CUSIP 64136E102
- SectorHealth care
- IndustryPharmaceutical Preparations
- HeadquartersBurlington, MA
- 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. Shares outstanding: 5.4m as of 2026-05-14, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $4.37.
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q4 2024 | 9 |
| Q1 2025 | 8 |
| Q2 2025 | 10 |
| Q3 2025 | 15 |
| Q4 2025 | 21 |
| Q1 2026 | 19 |
| Q2 2026 | 22 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2025 | 3 | 5 |
| Q2 2025 | 3 | 2 |
| Q3 2025 | 11 | 4 |
| Q4 2025 | 18 | 4 |
| Q1 2026 | 9 | 8 |
| Q2 2026 | 12 | 5 |
Biggest buyers
| AdvisorShares Investments LLC | Added | +97.5k |
| VANGUARD CAPITAL MANAGEMENT LLC | Added | +75.0k |
| CITADEL ADVISORS LLC | Added | +53.2k |
| RENAISSANCE TECHNOLOGIES LLC | New | +25.5k |
| XTX Topco Ltd | New | +23.1k |
| HRT FINANCIAL LP | New | +22.9k |
| JANE STREET GROUP, LLC | New | +14.9k |
| NORTHERN TRUST CORP | New | +10.6k |
| Shay Capital LLC | Added | +4.8k |
| VANGUARD FIDUCIARY TRUST CO | Added | +217 |
Biggest sellers
| Squadron Capital Management LLC | Sold out | -76.7k |
| Virtu Financial LLC | Sold out | -12.0k |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | -2.5k |
| RHUMBLINE ADVISERS | Sold out | -202 |
| UBS Group AG | Reduced | -199 |
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 |
|---|---|
Lynx1 Capital Management LP
13D · may seek influence
no change · filed 2025-12-29
Stated purposeItem 4 of the Schedule 13D is hereby amended and supplemented as follows: On December 26, 2025, the Reporting Persons made an offer to the Board to acquire, through one or more managed investment funds and vehicles affiliated with the Investment Manager, certain intellectual-property-related assets of the Company in an all-cash transaction, or if the Company prefers, through the delivery by the Reporting Persons to the Company of shares of Common Stock of the Company with equivalent value (the "IP Rights Proposal"). The IP Rights Proposal is subject to the Reporting Persons' due diligence and agreement on definitive documentation for the acquisition. Neither the Reporting Persons nor the Company is obligated to complete a transaction in connection with the IP Rights Proposal, and th… Full filing |
16.3% |
| Shay Capital LLC 13G · passive investor new · filed 2025-10-31 | 7.3% |
| AdvisorShares Trust 13G · institution new · filed 2026-10-05 | 5.8% |
Fell to 5% or below in the last year: Coastlands Capital LP (4.2%, 2026-07-28), Baselake Partners, LP (4.1%, 2026-02-06)
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 |
|---|---|---|
| Lynx1 Capital Management LP 0.44% of their portfolio | 875.3k $3.8m | Unchanged |
| AdvisorShares Investments LLC 0.13% of their portfolio | 252.9k $1.1m | Added +97.5k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 173.5k $758.1k | Added +75.0k |
| Shay Capital LLC 0.08% of their portfolio | 155.8k $680.9k | Added +4.8k |
| Balyasny Asset Management L.P. 0.00% of their portfolio | 142.2k $621.5k | Added +45 |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 72.6k $317.1k | Added +53.2k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 49.5k $216.4k | Reduced -2.5k |
| Ikarian Capital, LLC 0.03% of their portfolio | 47.4k $207.3k | Unchanged |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 33.8k $147.7k | Added +217 |
| ADAR1 Capital Management, LLC 0.01% of their portfolio | 30.0k $131.1k | Unchanged |
| FNY Investment Advisers, LLC 0.04% of their portfolio | 26.5k $115.0k | Unchanged |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 25.5k $111.4k | New |
| XTX Topco Ltd 0.00% of their portfolio | 23.1k $100.9k | New |
| HRT FINANCIAL LP 0.00% of their portfolio | 22.9k $99.0k | New |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 14.9k $65.1k | New |
| BOOTHBAY FUND MANAGEMENT, LLC 0.00% of their portfolio | 14.0k $61.2k | Unchanged |
| COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio | 11.2k $49.0k | Unchanged |
| NORTHERN TRUST CORP 0.00% of their portfolio | 10.6k $46.4k | New |
| Merck & Co., Inc. 0.01% of their portfolio | 10.0k $43.8k | Unchanged |
| UBS Group AG 0.00% of their portfolio | 2.1k $9.3k | Reduced -199 |
| MORGAN STANLEY 0.00% of their portfolio | 58 $254 | Unchanged |
| Caitong International Asset Management Co., Ltd 0.00% of their portfolio | 3 $13 | New |