Helix Acquisition Corp. III has 10 Schedule 13D or 13G filings on record since 2026-01-30. 7 holders' latest filing reports 5% or more of class a common stock. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Helix Holdings III LLC | 25.2% | 4,750,000 | SCHEDULE 13D, 2026-01-30 | 2026-01-26 |
| Nantahala Capital Management, LLC | 8.33% | 1,250,000 | SCHEDULE 13G, 2026-05-15 | 2026-03-31 |
| RA Capital Management, L.P. | 7% | 1,250,000 | SCHEDULE 13G, 2026-02-02 | 2026-01-26 |
| Affinity Asset Advisors, LLC | 7% | 1,250,000 | SCHEDULE 13G, 2026-05-14 | 2026-03-31 |
| Balyasny Asset Management L.P. | 6.97% | 1,236,709 | SCHEDULE 13G/A, 2026-08-14 | 2026-06-30 |
| SilverArc Capital Management, LLC | 6.8% | 1,208,986 | SCHEDULE 13G, 2026-05-13 | 2026-03-31 |
| ADAR1 Capital Management, LLC | 5.6% | 1,000,000 | SCHEDULE 13G, 2026-05-15 | 2026-03-31 |
| Millennium Management LLC | 4.8% | 855,721 | SCHEDULE 13G/A, 2026-05-04 | 2026-03-31 |
Purpose of Transaction (Item 4)
Helix Holdings III LLC
Founder Shares On November 20, 2025, the Sponsor paid $25,000, or approximately $0.006 per share, to cover certain of the Issuer's offering and formation costs in exchange for 4,312,500 Class B ordinary shares, par value $0.0001 per share, of the Issuer (the "Class B ordinary shares" or the "founder shares"). On December 1, 2025, the Sponsor surrendered 718,750 founder shares to the Issuer for no consideration, resulting in the Sponsor holding a total of 3,593,750 founder shares. On December 4, 2025, the Sponsor transferred 30,000 founder shares to each of the Issuer's nominated independent directors, Mark McKenna and John Schmid, resulting in the Sponsor holding a total of 3,533,750 founder shares. On January 22, 2026, the Issuer effected a share capitalization with respect to the Class B ordinary shares resulting in the issue and allotment of 718,750 Class B ordinary shares to the Sponsor, resulting in the Sponsor holding a total of 4,252,500 founder shares. The founder shares included an aggregate of 562,500 founder shares that were subject to forfeiture to the extent that the underwriters' over-allotment option in connection with the Issuer's initial public offering (the "IPO") was not exercised in full, so that the Sponsor would own, on an as-converted basis, approximately 20% of the Issuer's issued and outstanding shares after the IPO (excluding any public shares purchased by the Sponsor in the IPO and excluding the Private Placement Shares). On January 23, 2026, the …The first part of Item 4 of the SCHEDULE 13D filed 2026-01-30; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2026-01-30 | Millennium Management LLC | 6.2% | SCHEDULE 13G |
| 2026-01-30 | Helix Holdings III LLC | 25.2% | SCHEDULE 13D |
| 2026-02-02 | RA Capital Management, L.P. | 7% | SCHEDULE 13G |
| 2026-05-04 | Millennium Management LLC | 4.8% | SCHEDULE 13G/A |
| 2026-05-13 | SilverArc Capital Management, LLC | 6.8% | SCHEDULE 13G |
| 2026-05-14 | Affinity Asset Advisors, LLC | 7% | SCHEDULE 13G |
| 2026-05-15 | Nantahala Capital Management, LLC | 8.33% | SCHEDULE 13G |
| 2026-05-15 | ADAR1 Capital Management, LLC | 5.6% | SCHEDULE 13G |
| 2026-05-15 | Balyasny Asset Management L.P. | 6.97% | SCHEDULE 13G |
| 2026-08-14 | Balyasny Asset Management L.P. | 6.97% | SCHEDULE 13G/A |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.