# EDGAR Filing Document

**Accession Number:** 0001950677
**File Stem:** 0001085146-25-005067
**Filing Date:** 2025-8
**Character Count:** 10455
**Document Hash:** 21258d44317802aef1c033372b8a5b0a
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001085146-25-005067.hdr.sgml**: 20250814

**ACCESSION NUMBER**: 0001085146-25-005067

**CONFORMED SUBMISSION TYPE**: 13F-HR

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20250630

**FILED AS OF DATE**: 20250814

**DATE AS OF CHANGE**: 20250814

**EFFECTIVENESS DATE**: 20250814

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Decagon Asset Management LLP
- **CENTRAL INDEX KEY:** 0001950677

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** X0
- **FISCAL YEAR END:** 0331

**FILING VALUES:**
- **FORM TYPE:** 13F-HR
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 028-24786
- **FILM NUMBER:** 251214774

**BUSINESS ADDRESS:**
- **STREET 1:** 5 SWALLOW PLACE
- **CITY:** LONDON
- **STATE:** X0
- **ZIP:** W1B 2AF
- **BUSINESS PHONE:** 442031482244

**MAIL ADDRESS:**
- **STREET 1:** 5 SWALLOW PLACE
- **CITY:** LONDON
- **STATE:** X0
- **ZIP:** W1B 2AF

### FORM 13F COVER PAGE

**Report for the Calendar Year or Quarter Ended:** 06-30-2025

**Check here if Amendment** [ ] **Amendment Number:** 

**This Amendment (Check only one.):** [ ] is a restatement.

[ ] adds new holdings entries.

**Institutional Investment Manager Filing this Report:**

**Name:** Decagon Asset Management LLP<br>**Address:** 5 SWALLOW PLACE<br>LONDON, X0 W1B 2AF

**Form 13F File Number:** 028-24786

The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

**Person Signing this Report on Behalf of Reporting Manager:**

**Name:** Olivia Cooper<br>**Title:** Chief Operating Officer<br>**Phone:** 44 203 148 2244

**Signature, Place, and Date of Signing:**

/s/Olivia Cooper  London, X0  08-14-2025<br>[Signature]  [City, State]  [Date]

**Report Type (Check only one.):**

[x] **13F HOLDINGS REPORT.** (Check here if all holdings of this reporting manager are reported in this report.)

[ ] **13F NOTICE.** (Check here if no holdings are reported in this report, and all holdings are reported by other reporting manager(s).)

[ ] **13F COMBINATION REPORT.** (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)

### Form 13F Summary Page

**Report Summary:**

**Number of Other Included Managers:** 0

**Form 13F Information Table Entry Total:** 56

**Form 13F Information Table Value Total:** $153404521

      (round to nearest dollar)

**List of Other Included Managers:**

Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.

[If there are no entries in this list, state “NONE” and omit the column headings and list entries.]

**NONE**

### FORM 13F INFORMATION TABLE

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| NAME OF ISSUER | TITLE OF CLASS | CUSIP | FIGI | VALUE (x$1000) | SHRS OR PRN AMT | SH/PRN | PUT/CALL | INVESTMENT DISCRETION | OTHER MANAGER | VOTING AUTHORITY | VOTING AUTHORITY | VOTING AUTHORITY |
| NAME OF ISSUER | TITLE OF CLASS | CUSIP | FIGI | VALUE (x$1000) | SHRS OR PRN AMT | SH/PRN | PUT/CALL | INVESTMENT DISCRETION | OTHER MANAGER | SOLE | SHARED | NONE |
| ALCHEMY INVTS ACQUISITN CORP | *W EXP 11/30/202 | G0232F133 |  | 1488 | 13179 | SH |  | SOLE |  | 13179 | 0 | 0 |
| ANDRETTI ACQUISITION CORP II | *W EXP 06/01/203 | G26745128 |  | 98459 | 492294 | SH |  | SOLE |  | 492294 | 0 | 0 |
| ARES ACQUISITION CORP II | *W EXP 99/99/999 | G33033120 |  | 137181 | 124710 | SH |  | SOLE |  | 124710 | 0 | 0 |
| ARES ACQUISITION CORP II | SHS CLASS A | G33033104 | BBG01GWQM3D5 | 10136589 | 894668 | SH |  | SOLE |  | 894668 | 0 | 0 |
| ARES ACQUISITION CORP II | SHS CLASS A | G33033104 | BBG01GWQM3D5 | 566500 | 50000 | SH | Call | SOLE |  | 50000 | 0 | 0 |
| ARMADA ACQUISITION CORP II | *W EXP 05/21/203 | G0R38G112 |  | 57313 | 212272 | SH |  | SOLE |  | 212272 | 0 | 0 |
| ARTIUS II ACQUISITION INC | RIGHT 11/27/2029 | G0509J123 | BBG01T7MSFW0 | 84071 | 350296 | SH |  | SOLE |  | 350296 | 0 | 0 |
| AXIOM INTELLIGENCE AC CORP 1 | UNIT 06/10/2030 | G0750N120 | BBG01TZL8LH7 | 3531500 | 350000 | SH |  | SOLE |  | 350000 | 0 | 0 |
| BEST SPAC I ACQUISITION CORP | UNIT 05/27/2030 | G1069P137 | BBG01T4VHMR6 | 1506000 | 150000 | SH |  | SOLE |  | 150000 | 0 | 0 |
| BLEICHROEDER ACQUISITION COR | RIGHT 11/04/2026 | G1169T138 | BBG01R1Y9CG0 | 39134 | 111813 | SH |  | SOLE |  | 111813 | 0 | 0 |
| BLUE ACQUISITION CORP. | UNIT 06/02/2030 | G1331A124 | BBG01TZLJS35 | 2132456 | 212396 | SH |  | SOLE |  | 212396 | 0 | 0 |
| CANTALOUPE INC | COM | 138103106 | BBG001S96MW7 | 2766183 | 251700 | SH | Call | SOLE |  | 251700 | 0 | 0 |
| CAYSON ACQUISITION CORP | RIGHT 99/99/9999 | G1993W117 | BBG01QGCYNH1 | 14139 | 100989 | SH |  | SOLE |  | 100989 | 0 | 0 |
| CHAMPIONSGATE ACQUISITION CO | RIGHT 05/14/2030 | G2124S116 | BBG01VNW2957 | 16000 | 160000 | SH |  | SOLE |  | 160000 | 0 | 0 |
| CHAMPIONSGATE ACQUISITION CO | SHS CL A | G2124S108 | BBG01V9SHZB1 | 1592590 | 159259 | SH |  | SOLE |  | 159259 | 0 | 0 |
| COHEN CIRCLE ACQUISITION COR | SHS CL A | G3730H106 | BBG01R1Y68V5 | 6623258 | 603761 | SH |  | SOLE |  | 603761 | 0 | 0 |
| COLOMBIER ACQUISITION CORP I | COM SHS CL A | G2283U100 | BBG01KVS4KM5 | 1932500 | 125000 | SH | Call | SOLE |  | 125000 | 0 | 0 |
| COLUMBUS CIRCLE CAP CORP. I | SHS CL A | G2296A109 | BBG01VF3Z0N3 | 685245 | 64524 | SH |  | SOLE |  | 64524 | 0 | 0 |
| CONDUIT PHARMACEUTICALS INC | *W EXP 09/22/202 | 20678X114 |  | 4360 | 400000 | SH |  | SOLE |  | 400000 | 0 | 0 |
| COPLEY ACQUISITION CORP | *W EXP 99/99/999 | G24243126 |  | 58495 | 349012 | SH |  | SOLE |  | 349012 | 0 | 0 |
| COUCHBASE INC | COM | 22207T101 | BBG001Z5ZB22 | 8036136 | 329620 | SH |  | SOLE |  | 329620 | 0 | 0 |
| CRANE HBR ACQUISITION CORP | RIGHT 04/17/2030 | G24979117 | BBG01SLP2RB4 | 66925 | 247870 | SH |  | SOLE |  | 247870 | 0 | 0 |
| DUNE ACQUISITION CORP II | *W EXP 04/04/203 | G2867S117 |  | 42750 | 225000 | SH |  | SOLE |  | 225000 | 0 | 0 |
| EGH ACQUISITION CORP. | RIGHT 05/08/2025 | G2946P118 | BBG01TLHXWD3 | 65960 | 299820 | SH |  | SOLE |  | 299820 | 0 | 0 |
| EGH ACQUISITION CORP. | SHS CL A | G2946P100 | BBG01TLHZD25 | 3000000 | 300000 | SH |  | SOLE |  | 300000 | 0 | 0 |
| EQV VENTURES ACQUISITION COR | *W EXP 07/01/203 | G3106N117 |  | 74287 | 101208 | SH |  | SOLE |  | 101208 | 0 | 0 |
| ESH ACQUISITION CORP | RIGHT 99/99/9999 | 296424112 | BBG01HHQZHS9 | 22320 | 303674 | SH |  | SOLE |  | 303674 | 0 | 0 |
| FUTURE VISION II ACQUISITION | RIGHT 06/29/2029 | G37068114 | BBG01QLJP7K1 | 5757 | 30296 | SH |  | SOLE |  | 30296 | 0 | 0 |
| GENERATION ESSENTIALS GROUP | *W EXP 02/15/202 | G38268119 |  | 80405 | 201013 | SH |  | SOLE |  | 201013 | 0 | 0 |
| GMS INC | COM | 36251C103 | BBG009Q036F8 | 10875000 | 100000 | SH | Call | SOLE |  | 100000 | 0 | 0 |
| HAYMAKER ACQUISITION CORP IV | *W EXP 05/31/202 | G4375F116 |  | 6583 | 18285 | SH |  | SOLE |  | 18285 | 0 | 0 |
| HELIX ACQUISITION CORP II | CL A ORD SHS | G4444H101 | BBG01L3GYF11 | 3698129 | 348223 | SH |  | SOLE |  | 348223 | 0 | 0 |
| IB ACQUISITION CORP | RIGHT 09/28/2025 | 44934N116 | BBG01MNPW860 | 18882 | 459411 | SH |  | SOLE |  | 459411 | 0 | 0 |
| INFLECTION PT ACQUISITION CO | RIGHT 04/25/2030 | G47875110 | BBG01VKD20X0 | 79600 | 200000 | SH |  | SOLE |  | 200000 | 0 | 0 |
| K GROWTH ACQUISITION CORP | RIGHT 08/29/2031 | G52258129 | BBG01SSPDCG3 | 99868 | 625346 | SH |  | SOLE |  | 625346 | 0 | 0 |
| KELLANOVA | COM | 487836108 | BBG001S5SJL0 | 19199655 | 241414 | SH |  | SOLE |  | 241414 | 0 | 0 |
| KOCHAV DEFENSE ACQUI CO | UNIT 05/21/2030 | G5304D122 | BBG01TQT6NX0 | 6874474 | 675624 | SH |  | SOLE |  | 675624 | 0 | 0 |
| LEGATO MERGER CORP III | *W EXP 05/08/203 | G5451A111 |  | 66313 | 245604 | SH |  | SOLE |  | 245604 | 0 | 0 |
| MOUNTAIN LAKE ACQUISITION CO | RIGHT 11/15/2028 | G6301B127 | BBG01S2WHSM0 | 21826 | 128390 | SH |  | SOLE |  | 128390 | 0 | 0 |
| NEW PROVIDENCE ACQUISITION C | *W EXP 04/24/203 | G6476A110 |  | 52091 | 83345 | SH |  | SOLE |  | 83345 | 0 | 0 |
| NEW PROVIDENCE ACQUISITION C | USD CL A ORD SHS | G6476A102 | BBG00ZVC8VN9 | 2550387 | 250038 | SH |  | SOLE |  | 250038 | 0 | 0 |
| OAKTREE ACQUISITION CORP III | *W EXP 09/01/203 | G6717R112 |  | 161653 | 184747 | SH |  | SOLE |  | 184747 | 0 | 0 |
| OAKTREE ACQUISITION CORP III | SHS CL A | G6717R104 | BBG00Z9CKG26 | 6458267 | 618016 | SH |  | SOLE |  | 618016 | 0 | 0 |
| OYSTER ENTERPRISES II ACQUIS | UNIT 05/22/2030 | G6861F120 | BBG01TVQNJQ8 | 1827247 | 180558 | SH |  | SOLE |  | 180558 | 0 | 0 |
| PELICAN ACQUISITION CORP | RIGHT 05/02/2030 | G6993G111 | BBG01TQ1V9R1 | 110784 | 583073 | SH |  | SOLE |  | 583073 | 0 | 0 |
| PELICAN ACQUISITION CORP | SHS | G6993G103 | BBG01TF1GR90 | 1635602 | 163071 | SH |  | SOLE |  | 163071 | 0 | 0 |
| PERCEPTIVE CAP SOLUTIONS COR | CL A ORD SHS | G70077105 | BBG01N0FG7G4 | 3861761 | 363631 | SH |  | SOLE |  | 363631 | 0 | 0 |
| PIONEER ACQUISITION I CORP | UNIT 06/16/2030 | G7117W123 | BBG01V9Z86T0 | 346313 | 34614 | SH |  | SOLE |  | 34614 | 0 | 0 |
| PROASSURANCE CORP | COM | 74267C106 | BBG001S9Z6F9 | 6620700 | 290000 | SH | Call | SOLE |  | 290000 | 0 | 0 |
| RANGE CAP ACQUISITION CORP | RIGHT 99/99/9999 | G7375C116 | BBG01RQ7SFC8 | 150342 | 601367 | SH |  | SOLE |  | 601367 | 0 | 0 |
| SAGE THERAPEUTICS INC | COM | 78667J108 | BBG0025X16Z4 | 2663040 | 292000 | SH | Call | SOLE |  | 292000 | 0 | 0 |
| SBC MED GROUP HLDGS INC | *W EXP 09/17/202 | 73245B115 |  | 228126 | 1181391 | SH |  | SOLE |  | 1181391 | 0 | 0 |
| SILVERBOX CORP IV | SHS CL A | G81354105 | BBG01PDGS574 | 4834445 | 441099 | SH |  | SOLE |  | 441099 | 0 | 0 |
| SKECHERS U S A INC | CL A | 830566105 | BBG001S5XTG8 | 34161647 | 541389 | SH |  | SOLE |  | 541389 | 0 | 0 |
| SPRING VALLEY ACQUISTN CORP | RIGHT 02/25/2026 | G83752132 | BBG01B8BLJB4 | 97486 | 696331 | SH |  | SOLE |  | 696331 | 0 | 0 |
| YORKVILLE ACQUISITION CORP. | UNIT 06/06/2030 | G98659108 | BBG01TJCYW82 | 3326299 | 295671 | SH |  | SOLE |  | 295671 | 0 | 0 |

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