As of November 6, 2026, Palatin Technologies Inc. is a publicly traded company (Nasdaq: PTN); its largest reported holder is Janus Henderson, with 9.99% on Schedule 13G of December 8, 2025, then Sirenia Capital Management LP (9.9%). The largest insider holding is Robert K. Deveer Jr., a director, with 138,065 shares (7.8% of shares outstanding), per Form 4 of May 12, 2025 (Schedule 13G, December 8, 2025).
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Is Palatin Technologies Inc. a real, registered company?
- Palatin Technologies Inc files with the SEC under CIK 911216 (its SEC filings).
- Its shares are listed under the ticker PTN on Nasdaq (SEC company record).
- Incorporated in New Jersey; business address in Cranbury, New Jersey, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under PALATIN TECHNOLOGIES INC in our court records and SEC 8-K records (as of 2026-11-06).
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Sirenia Capital Management LP (filed 2026-05-15).
Who are Palatin Technologies Inc.'s owners and officers?
Palatin Technologies Inc.: incorporated in New Jersey; business address in Cranbury, New Jersey; industry Pharmaceutical Preparations (Schedule 13G/A, 2026-08-14).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G/A, 2026-08-14 | Augc Biofund LP | 4.7% |
| Schedule 13G, 2026-05-15 | Sirenia Capital Management LP | 9.9% |
| Schedule 13G/A, 2026-05-15 | Point72 Asset Management, L.P. | 0.5% |
| Schedule 13G/A, 2026-05-15 | Logos Global Management LP | 9.9% |
| Schedule 13G, 2026-04-23 | Augc Biofund LP | 5.3% |
| Schedule 13G, 2026-02-17 | Driehaus Capital Management LLC | 9.79% |
| Schedule 13G, 2025-12-08 | Janus Henderson Group PLC | 9.99% |
| Schedule 13G, 2025-11-14 | Logos Global Management LP | 9.9% |
| Schedule 13G, 2025-11-13 | Point72 Asset Management, L.P. | 9.9% |
Questions about who owns Palatin Technologies Inc.
Who owns Palatin Technologies Inc.?
On this page, 4 holders' latest ownership filings report 5% or more of Palatin Technologies Inc.: Janus Henderson Group PLC (9.99%, Schedule 13G, filed 2025-12-08), Sirenia Capital Management LP (9.9%, Schedule 13G, filed 2026-05-15), Logos Global Management LP (9.9%, Schedule 13G/A, filed 2026-05-15) and Driehaus Capital Management LLC (9.79%, Schedule 13G, filed 2026-02-17).
Who are the largest shareholders of Palatin Technologies Inc.?
By the share each holder's latest filing reports, the largest holders of Palatin Technologies Inc. on this page are Janus Henderson Group PLC (9.99%), Sirenia Capital Management LP (9.9%) and Logos Global Management LP (9.9%).
When did Janus Henderson Group PLC buy into Palatin Technologies Inc.?
The filings give report dates, not purchase dates. The earliest filing from Janus Henderson Group PLC on this page is the Schedule 13G, filed 2025-12-08, reporting 9.99%.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 9 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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Which insiders own Palatin Technologies Inc. shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- , a director: 138,065 shares (7.8% of shares outstanding) (Form 4, 2025-05-12).
- , the chief executive and president: 64,899 shares (3.6% of shares outstanding) (Form 4, 2026-07-17).
- , the chief operating officer and chief financial officer: 63,792 shares (3.6% of shares outstanding) (Form 4, 2026-07-17).
- , a director: 15,102 shares (0.85% of shares outstanding) (Form 4, 2025-12-11).
- , a director: 14,081 shares (0.79% of shares outstanding) (Form 4, 2025-12-11).
Shares outstanding: 1,780,939 as of 2026-09-25, from the company's latest SEC cover page.
How much has Palatin Technologies Inc. raised?
Latest IPO step: Palatin Technologies Inc. filed its final IPO prospectus, ticker PTN (424B4, 2025-11-12).
IPO filings: 424B4, 2025-11-12, 424B4, 2025-11-10, S-1/A, 2025-10-17, S-1/A, 2025-10-01, S-1, 2025-10-01; ticker PTN on NYSE American.
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More on Palatin Technologies Inc. and the records around it.
Palatin Technologies Inc. elsewhere on the record
- 5%+ stake filings Aug 2026
Companies that share a holder
- Logos Global Management LP also filed stake reports on 14 other companies: Longeveron Inc. (Sep 2026), ACHIEVE LIFE SCIENCES, INC. (Aug 2026), Yarrow Bioscience, Inc. (Aug 2026)
- DRIEHAUS CAPITAL MANAGEMENT LLC also filed stake reports on 16 other companies: Cardinal Infrastructure Group Inc. (Aug 2026), Cue Biopharma, Inc. (Aug 2026), Definium Therapeutics, Inc. (Aug 2026)
- Sirenia Capital Management LP also filed stake reports on 19 other companies: Alto Neuroscience, Inc. (Aug 2026), ANAPTYSBIO, INC (Aug 2026), CYBIN INC. (Aug 2026)
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