# EDGAR Filing Document

**Accession Number:** 0001950677
**File Stem:** 0001950677-26-000010
**Filing Date:** 2026-5
**Character Count:** 12879
**Document Hash:** 2398d46fda18634e4d1b9b33b8e3e5f6
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001950677-26-000010.hdr.sgml**: 20260515

**ACCESSION NUMBER**: 0001950677-26-000010

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

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20260331

**FILED AS OF DATE**: 20260515

**DATE AS OF CHANGE**: 20260515

**EFFECTIVENESS DATE**: 20260515

**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:** 26983098

**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:** 03-31-2026

**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  05-15-2026<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:** 77

**Form 13F Information Table Value Total:** $386209936

      (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 |
| AA MISSION ACQUISITION CORP | *W EXP 07/23/203 | G1000S125 |  | 21041 | 130692 | SH |  | SOLE |  | 130692 | 0 | 0 |
| AI INFRASTRUCTURE ACQUISI | RIGHT 99/99/9999 | G01336117 | BBG01XQ57VJ0 | 44235 | 176936 | SH |  | SOLE |  | 176936 | 0 | 0 |
| ALCHEMY INVTS ACQUISITN CORP | *W EXP 11/30/202 | G0232F133 |  | 2108 | 13179 | SH |  | SOLE |  | 13179 | 0 | 0 |
| APEX TECH ACQUISITION INC | UNIT 99/99/9999 | G0R21F121 | BBG01YX76G46 | 10129960 | 1011984 | SH |  | SOLE |  | 1011984 | 0 | 0 |
| AXIOM INTELLIGENCE AC CORP 1 | RIGHT 06/10/2030 | G0750N112 | BBG01WGCN874 | 66465 | 350000 | SH |  | SOLE |  | 350000 | 0 | 0 |
| BAIN CAP GSS INVT CORP | *W EXP 01/01/202 | G0R78B114 |  | 87086 | 140462 | SH |  | SOLE |  | 140462 | 0 | 0 |
| BAIN CAP GSS INVT CORP | ORD CL A | G0R78B106 | BBG01X59LMB7 | 6642886 | 656944 | SH |  | SOLE |  | 656944 | 0 | 0 |
| BHAV ACQUISITION CORP | UNIT 03/18/2031 | G1R59W127 | BBG0207PPCR1 | 9880200 | 990000 | SH |  | SOLE |  | 990000 | 0 | 0 |
| BLACK SPADE ACQUISITION III | *W EXP 99/99/999 | G1154S111 |  | 73102 | 208860 | SH |  | SOLE |  | 208860 | 0 | 0 |
| BTC DEV CORP | *W EXP 09/11/203 | G0701G117 |  | 24715 | 51491 | SH |  | SOLE |  | 51491 | 0 | 0 |
| CALISA ACQUISITION CORP | RIGHT 09/11/2030 | G1771C127 | BBG01YLJMNX8 | 8324 | 15135 | SH |  | SOLE |  | 15135 | 0 | 0 |
| CAYSON ACQUISITION CORP | RIGHT 99/99/9999 | G1993W117 | BBG01QGCYNH1 | 22579 | 102635 | SH |  | SOLE |  | 102635 | 0 | 0 |
| CDT EQUITY INC | *W EXP 09/22/202 | 20678X114 |  | 3320 | 400000 | SH |  | SOLE |  | 400000 | 0 | 0 |
| CHAMPIONSGATE ACQUISITION CO | RIGHT 05/14/2030 | G2124S116 | BBG01VNW2957 | 24094 | 172103 | SH |  | SOLE |  | 172103 | 0 | 0 |
| CHART INDS INC | COM | 16115Q308 | BBG001SQV7W4 | 10927978 | 52856 | SH |  | SOLE |  | 52856 | 0 | 0 |
| CLEARWATER ANALYTICS HLDGS I | CL A | 185123106 | BBG012C765M3 | 26941300 | 1139167 | SH |  | SOLE |  | 1139167 | 0 | 0 |
| CLEARWATER ANALYTICS HLDGS I | CL A | 185123106 | BBG012C765M3 | 16555 | 700 | SH | Put | SOLE |  | 700 | 0 | 0 |
| COLOMBIER ACQUISITION CORP I | *W EXP 12/31/203 | G2284A111 |  | 184148 | 186027 | SH |  | SOLE |  | 186027 | 0 | 0 |
| COLOMBIER ACQUISITION CORP I | ORD SHS CL A | G2284A103 | BBG01ZZWLS61 | 14971624 | 1488233 | SH |  | SOLE |  | 1488233 | 0 | 0 |
| COPLEY ACQUISITION CORP | *W EXP 99/99/999 | G24243126 |  | 53086 | 353910 | SH |  | SOLE |  | 353910 | 0 | 0 |
| D BORAL ACQUISITION I CORP | *W EXP 01/30/203 | G2616T119 |  | 39117 | 130387 | SH |  | SOLE |  | 130387 | 0 | 0 |
| DIGITAL ASSET ACQUISITION CO | *W EXP 04/01/203 | G2868C111 |  | 13188 | 35075 | SH |  | SOLE |  | 35075 | 0 | 0 |
| EGH ACQUISITION CORP. | RIGHT 99/99/9999 | G2946P118 | BBG01TLHXWD3 | 161719 | 646873 | SH |  | SOLE |  | 646873 | 0 | 0 |
| ELECTRONIC ARTS INC | COM | 285512109 | BBG001S5T5C9 | 27228673 | 133559 | SH |  | SOLE |  | 133559 | 0 | 0 |
| ELECTRONIC ARTS INC | COM | 285512109 | BBG001S5T5C9 | 305805 | 1500 | SH | Call | SOLE |  | 1500 | 0 | 0 |
| ELECTRONIC ARTS INC | COM | 285512109 | BBG001S5T5C9 | 978576 | 4800 | SH | Put | SOLE |  | 4800 | 0 | 0 |
| EVOLUTION GLOBAL ACQUISITION | *W EXP 10/22/203 | G3226F119 |  | 147602 | 369005 | SH |  | SOLE |  | 369005 | 0 | 0 |
| FUTURE MONEY ACQUISITION COR | UNIT 03/16/2031 | G3700S124 | BBG01YYMTTT2 | 8431464 | 844320 | SH |  | SOLE |  | 844320 | 0 | 0 |
| GALAXYEDGE ACQUISITION CORP | UNIT 99/99/9999 | G3710B129 | BBG01XXQSWD7 | 9910197 | 990000 | SH |  | SOLE |  | 990000 | 0 | 0 |
| GENERATION ESSENTIALS GROUP | *W EXP 02/15/202 | G38268119 |  | 38729 | 203834 | SH |  | SOLE |  | 203834 | 0 | 0 |
| GIGCAPITAL9 CORP | CL A | G3865B114 | BBG01ZT43NG0 | 7454826 | 758375 | SH |  | SOLE |  | 758375 | 0 | 0 |
| GIGCAPITAL9 CORP | RIGHT 12/01/2030 | G3865B122 | BBG01ZT3JYK6 | 166767 | 758375 | SH |  | SOLE |  | 758375 | 0 | 0 |
| GSR IV ACQUISITION CORP | RIGHT 08/22/2030 | G4R12K115 | BBG01WH8MXS5 | 267119 | 109028 | SH |  | SOLE |  | 109028 | 0 | 0 |
| HELIX ACQUISITION CORP III | USD CL A ORD SHS | G4444S107 | BBG01YYMT6X7 | 8116733 | 798891 | SH |  | SOLE |  | 798891 | 0 | 0 |
| HIGHVIEW MERGER CORP | *W EXP 07/24/203 | G4569C119 |  | 25010 | 100000 | SH |  | SOLE |  | 100000 | 0 | 0 |
| HOLOGIC INC | COM | 436440101 | BBG001S6HWB2 | 20787250 | 275000 | SH |  | SOLE |  | 275000 | 0 | 0 |
| IB ACQUISITION CORP | RIGHT 09/28/2026 | 44934N116 | BBG01MNPW860 | 17535 | 159411 | SH |  | SOLE |  | 159411 | 0 | 0 |
| IDEA ACQUISITION CORP | UNIT 01/06/2031 | G4727U126 | BBG01Y3CSTD6 | 3154848 | 318350 | SH |  | SOLE |  | 318350 | 0 | 0 |
| IRIS ACQUISITION CORP II | *W EXP 08/15/203 | G4940M117 |  | 87998 | 285707 | SH |  | SOLE |  | 285707 | 0 | 0 |
| K GROWTH ACQUISITION CORP | RIGHT 08/29/2031 | G52258129 | BBG01SSPDCG3 | 157476 | 874864 | SH |  | SOLE |  | 874864 | 0 | 0 |
| KARBON CAP PARTNERS CORP | *W EXP 12/11/203 | G5225W118 |  | 84045 | 163450 | SH |  | SOLE |  | 163450 | 0 | 0 |
| KARBON CAP PARTNERS CORP | ORD SHS CL A | G5225W100 | BBG01ZBB4QL9 | 6577359 | 653813 | SH |  | SOLE |  | 653813 | 0 | 0 |
| KOCHAV DEFENSE ACQUI CO | RIGHT 05/21/2030 | G5304D114 | BBG01W7CXRN3 | 256262 | 1079002 | SH |  | SOLE |  | 1079002 | 0 | 0 |
| KOCHAV DEFENSE ACQUI CO | SHS CL A | G5304D106 | BBG01W7CXHV6 | 6136203 | 598654 | SH |  | SOLE |  | 598654 | 0 | 0 |
| M EVO GBL ACQUISITION CORP I | *W EXP 02/18/203 | G6071J110 |  | 152727 | 449194 | SH |  | SOLE |  | 449194 | 0 | 0 |
| M EVO GBL ACQUISITION CORP I | ORD SHS CL A | G6071J102 | BBG01ZY38C39 | 8849220 | 898398 | SH |  | SOLE |  | 898398 | 0 | 0 |
| MASTERBRAND INC | COMMON STOCK | 57638P104 | BBG01B9G4424 | 12855545 | 1546997 | SH |  | SOLE |  | 1546997 | 0 | 0 |
| METALS ACQUISITION CORP II | UNIT 99/99/9999 | G60420125 | BBG01ZZX1874 | 3471110 | 344015 | SH |  | SOLE |  | 344015 | 0 | 0 |
| MISTER CAR WASH INC | COM | 60646V105 | BBG011FS2K56 | 20385299 | 2924720 | SH |  | SOLE |  | 2924720 | 0 | 0 |
| MOUNTAIN LAKE ACQUISITION CO | RIGHT 11/15/2028 | G6301B127 | BBG01S2WHSM0 | 18113 | 69665 | SH |  | SOLE |  | 69665 | 0 | 0 |
| NEW AMER ACQUISITION I CORP | *W EXP 99/99/999 | 023634116 |  | 221490 | 442979 | SH |  | SOLE |  | 442979 | 0 | 0 |
| NEW AMER ACQUISITION I CORP | COM SHS CL A | 023634108 | BBG01YVBDX17 | 8868430 | 885957 | SH |  | SOLE |  | 885957 | 0 | 0 |
| NEW PROVIDENCE ACQUISITION C | *W EXP 04/24/203 | G6476A110 |  | 8380 | 44100 | SH |  | SOLE |  | 44100 | 0 | 0 |
| NEWBRIDGE ACQUISITION LTD | CL A ORD SHS | G6464L102 | BBG01X0Y1H75 | 3454500 | 350000 | SH |  | SOLE |  | 350000 | 0 | 0 |
| NEWBRIDGE ACQUISITION LTD | RIGHT 09/25/2030 | G6464L136 | BBG01Z2SP2W0 | 45535 | 350000 | SH |  | SOLE |  | 350000 | 0 | 0 |
| NORFOLK SOUTHN CORP | COM | 655844108 | BBG001S5TQJ6 | 62003480 | 216040 | SH |  | SOLE |  | 216040 | 0 | 0 |
| OAKTREE ACQUISITION CORP III | *W EXP 09/01/203 | G6717R112 |  | 122026 | 162702 | SH |  | SOLE |  | 162702 | 0 | 0 |
| OAKTREE ACQUISITION CORP III | SHS CL A | G6717R104 | BBG00Z9CKG26 | 10605677 | 1002427 | SH |  | SOLE |  | 1002427 | 0 | 0 |
| OYSTER ENTERPRISES II ACQUIS | RIGHT 05/22/2030 | G6861F138 | BBG01V67W0B0 | 22886 | 183091 | SH |  | SOLE |  | 183091 | 0 | 0 |
| PENUMBRA INC | COM | 70975L107 | BBG001TRHPB0 | 55030872 | 167588 | SH |  | SOLE |  | 167588 | 0 | 0 |
| PONO CAP FOUR INC | UNIT 03/11/2031 | G71702123 | BBG01ZZWMMR0 | 6601730 | 661496 | SH |  | SOLE |  | 661496 | 0 | 0 |
| PRAETORIAN ACQUISITION CORP | *W EXP 01/16/203 | G7S17G129 |  | 25633 | 77677 | SH |  | SOLE |  | 77677 | 0 | 0 |
| PRAETORIAN ACQUISITION CORP | ORD SHS CL A | G7S17G103 | BBG01YLCJXG4 | 2283694 | 233030 | SH |  | SOLE |  | 233030 | 0 | 0 |
| PROCAP ACQUISITION CORP | *W EXP 05/16/203 | G7257A121 |  | 72114 | 225358 | SH |  | SOLE |  | 225358 | 0 | 0 |
| RANGE CAP ACQUISITION CORP | RIGHT 99/99/9999 | G7375C116 | BBG01RQ7SFC8 | 34972 | 116572 | SH |  | SOLE |  | 116572 | 0 | 0 |
| RF ACQUISITION CORP III | ORD SHS | G7537X107 | BBG01Y1R7Q17 | 986940 | 100811 | SH |  | SOLE |  | 100811 | 0 | 0 |
| RF ACQUISITION CORP III | RIGHT 01/28/2031 | G7537X123 | BBG020BCYZJ3 | 10081 | 100811 | SH |  | SOLE |  | 100811 | 0 | 0 |
| SAFEGUARD ACQUISITION CORP | *W EXP 99/99/999 | G77676115 |  | 52306 | 130764 | SH |  | SOLE |  | 130764 | 0 | 0 |
| SBC MED GROUP HLDGS INC | *W EXP 09/17/202 | 73245B115 |  | 259873 | 944992 | SH |  | SOLE |  | 944992 | 0 | 0 |
| SOREN ACQUISITION CORP | *W EXP 12/19/203 | G8274J111 |  | 22933 | 71666 | SH |  | SOLE |  | 71666 | 0 | 0 |
| STONEBRIDGE ACQUISITION II C | RIGHT 09/09/2030 | G85096116 | BBG01XNDH2Y2 | 44358 | 367803 | SH |  | SOLE |  | 367803 | 0 | 0 |
| TEXAS VENTURES ACQUISITION I | *W EXP 04/23/203 | G8772L113 |  | 101494 | 221072 | SH |  | SOLE |  | 221072 | 0 | 0 |
| TGE VALUE CREATIVE SOLUTIONS | *W EXP 09/16/203 | G8773E118 |  | 77718 | 267995 | SH |  | SOLE |  | 267995 | 0 | 0 |
| TGE VALUE CREATIVE SOLUTIONS | USD CL A ORD SHS | G8773E100 | BBG01WT4P2Z8 | 4559343 | 461472 | SH |  | SOLE |  | 461472 | 0 | 0 |
| XFLH CAP CORP | ORD SHS | G9834D107 | BBG020LMZPD7 | 4189518 | 424470 | SH |  | SOLE |  | 424470 | 0 | 0 |
| XFLH CAP CORP | RIGHT 12/31/2029 | G9834D115 | BBG020S19MK4 | 42446 | 424470 | SH |  | SOLE |  | 424470 | 0 | 0 |
| YORKVILLE ACQUISITION CORP. | *W EXP 06/06/203 | G98659124 |  | 60186 | 175268 | SH |  | SOLE |  | 175268 | 0 | 0 |

---