Decagon Asset Management LLP — 13F Holdings & Portfolio
CIK 1950677 · latest 13F-HR filed 2026-05-15
Decagon Asset Management LLP manages $386.2M in 13F-reported U.S. long-equity assets across 77 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are NSC (16.05%), PEN (14.25%), EA (7.05%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 44 new positions, exited 25, added to 17, and trimmed 12.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
$386.2M
Long-equity book
77
Distinct positions
2026-03-31
Filed 2026-05-15
+44 / −25 / ↑17 / ↓12
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- NORFOLK SOUTHN CORP$28.5M +85.1%
- MASTERBRAND INC$4.4M +52.6%
- OAKTREE ACQUISITION CORP III$3.5M +48.4%
- KOCHAV DEFENSE ACQUI CO$1.3M +25.8%
- BAIN CAP GSS INVT CORP$943.0K +16.5%
Top Trims
- HOLOGIC INC-$16.3M -44.0%
- TEXAS VENTURES ACQUISITION I-$156.0K -60.6%
- NEW PROVIDENCE ACQUISITION C-$42.9K -83.7%
- COPLEY ACQUISITION CORP-$38.1K -41.8%
- YORKVILLE ACQUISITION CORP.-$26.0K -30.2%
New Positions
- PENUMBRA INC$55.0M
- ELECTRONIC ARTS INC$27.2M
- CLEARWATER ANALYTICS HLDGS I$26.9M
- MISTER CAR WASH INC$20.4M
- COLOMBIER ACQUISITION CORP I$15.0M
Exited Positions
- EXACT SCIENCES CORP$35.3M
- CYBERARK SOFTWARE LTD$18.3M
- AVIDITY BIOSCIENCES INC$17.5M
- YORKVILLE ACQUISITION CORP.$12.3M
- INFLECTION POINT ACQUISITION$8.8M
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | NORFOLK SOUTHN CORP | NSC | 655844108 | $62.0M | 16.05% | 216,040 | SH |
| 2 | PENUMBRA INC | PEN | 70975L107 | $55.0M | 14.25% | 167,588 | SH |
| 3 | ELECTRONIC ARTS INC | EA | 285512109 | $27.2M | 7.05% | 133,559 | SH |
| 4 | CLEARWATER ANALYTICS HLDGS I | CWAN | 185123106 | $26.9M | 6.98% | 1,139,167 | SH |
| 5 | HOLOGIC INC | HOLX | 436440101 | $20.8M | 5.38% | 275,000 | SH |
| 6 | MISTER CAR WASH INC | MCW | 60646V105 | $20.4M | 5.28% | 2,924,720 | SH |
| 7 | COLOMBIER ACQUISITION CORP I | CLBR | G2284A103 | $15.0M | 3.88% | 1,488,233 | SH |
| 8 | MASTERBRAND INC | MBC | 57638P104 | $12.9M | 3.33% | 1,546,997 | SH |
| 9 | CHART INDS INC | GTLS | 16115Q308 | $10.9M | 2.83% | 52,856 | SH |
| 10 | OAKTREE ACQUISITION CORP III | OACC | G6717R104 | $10.6M | 2.75% | 1,002,427 | SH |
| 11 | APEX TECH ACQUISITION INC | TRAD.U | G0R21F121 | $10.1M | 2.62% | 1,011,984 | SH |
| 12 | GALAXYEDGE ACQUISITION CORP | GLED.U | G3710B129 | $9.9M | 2.57% | 990,000 | SH |
| 13 | BHAV ACQUISITION CORP | BHAVU | G1R59W127 | $9.9M | 2.56% | 990,000 | SH |
| 14 | NEW AMER ACQUISITION I CORP | NWAX | 023634108 | $8.9M | 2.30% | 885,957 | SH |
| 15 | M EVO GBL ACQUISITION CORP I | MEVO | G6071J102 | $8.8M | 2.29% | 898,398 | SH |
| 16 | FUTURE MONEY ACQUISITION COR | FMACU | G3700S124 | $8.4M | 2.18% | 844,320 | SH |
| 17 | HELIX ACQUISITION CORP III | HLXC | G4444S107 | $8.1M | 2.10% | 798,891 | SH |
| 18 | GIGCAPITAL9 CORP | GIX | G3865B114 | $7.5M | 1.93% | 758,375 | SH |
| 19 | BAIN CAP GSS INVT CORP | BCSS | G0R78B106 | $6.6M | 1.72% | 656,944 | SH |
| 20 | PONO CAP FOUR INC | PONOU | G71702123 | $6.6M | 1.71% | 661,496 | SH |
| 21 | KARBON CAP PARTNERS CORP | KBON | G5225W100 | $6.6M | 1.70% | 653,813 | SH |
| 22 | KOCHAV DEFENSE ACQUI CO | KCHV | G5304D106 | $6.1M | 1.59% | 598,654 | SH |
| 23 | TGE VALUE CREATIVE SOLUTIONS | BEBE | G8773E100 | $4.6M | 1.18% | 461,472 | SH |
| 24 | XFLH CAP CORP | XFLH | G9834D107 | $4.2M | 1.08% | 424,470 | SH |
| 25 | METALS ACQUISITION CORP II | MTAL.U | G60420125 | $3.5M | 0.90% | 344,015 | SH |
| 26 | NEWBRIDGE ACQUISITION LTD | NBRG | G6464L102 | $3.5M | 0.89% | 350,000 | SH |
| 27 | IDEA ACQUISITION CORP | IACOU | G4727U126 | $3.2M | 0.82% | 318,350 | SH |
| 28 | PRAETORIAN ACQUISITION CORP | PTOR | G7S17G103 | $2.3M | 0.59% | 233,030 | SH |
| 29 | RF ACQUISITION CORP III | RFAM | G7537X107 | $986.9K | 0.26% | 100,811 | SH |
| 30 | ELECTRONIC ARTS INC Put | EA | 285512109 | $978.6K | 0.25% | 4,800 | SH |
| 31 | ELECTRONIC ARTS INC Call | EA | 285512109 | $305.8K | 0.08% | 1,500 | SH |
| 32 | GSR IV ACQUISITION CORP | GSRFR | G4R12K115 | $267.1K | 0.07% | 109,028 | SH |
| 33 | SBC MED GROUP HLDGS INC | SBCWW | 73245B115 | $259.9K | 0.07% | 944,992 | SH |
| 34 | KOCHAV DEFENSE ACQUI CO | KCHVR | G5304D114 | $256.3K | 0.07% | 1,079,002 | SH |
| 35 | NEW AMER ACQUISITION I CORP | NWAX.WS | 023634116 | $221.5K | 0.06% | 442,979 | SH |
| 36 | COLOMBIER ACQUISITION CORP I | CLBR.WS | G2284A111 | $184.1K | 0.05% | 186,027 | SH |
| 37 | GIGCAPITAL9 CORP | GIXXR | G3865B122 | $166.8K | 0.04% | 758,375 | SH |
| 38 | EGH ACQUISITION CORP. | EGHAR | G2946P118 | $161.7K | 0.04% | 646,873 | SH |
| 39 | K&F GROWTH ACQUISITION CORP | KFIIR | G52258129 | $157.5K | 0.04% | 874,864 | SH |
| 40 | M EVO GBL ACQUISITION CORP I | MEVOW | G6071J110 | $152.7K | 0.04% | 449,194 | SH |
| 41 | EVOLUTION GLOBAL ACQUISITION | EVOXW | G3226F119 | $147.6K | 0.04% | 369,005 | SH |
| 42 | OAKTREE ACQUISITION CORP III | OACCW | G6717R112 | $122.0K | 0.03% | 162,702 | SH |
| 43 | TEXAS VENTURES ACQUISITION I | TVACW | G8772L113 | $101.5K | 0.03% | 221,072 | SH |
| 44 | IRIS ACQUISITION CORP II | IRAB.WS | G4940M117 | $88.0K | 0.02% | 285,707 | SH |
| 45 | BAIN CAP GSS INVT CORP | BCSS.WS | G0R78B114 | $87.1K | 0.02% | 140,462 | SH |
| 46 | KARBON CAP PARTNERS CORP | KBONW | G5225W118 | $84.0K | 0.02% | 163,450 | SH |
| 47 | TGE VALUE CREATIVE SOLUTIONS | BEBE.WS | G8773E118 | $77.7K | 0.02% | 267,995 | SH |
| 48 | BLACK SPADE ACQUISITION III | BIII.WS | G1154S111 | $73.1K | 0.02% | 208,860 | SH |
| 49 | PROCAP ACQUISITION CORP | PCAPW | G7257A121 | $72.1K | 0.02% | 225,358 | SH |
| 50 | AXIOM INTELLIGENCE AC CORP 1 | AXINR | G0750N112 | $66.5K | 0.02% | 350,000 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-15 | $386.2M | 77 | 0001950677-26-000010 |
| 2025-12-31 | 2026-02-17 | $260.1M | 57 | 0001950677-26-000002 |
| 2025-09-30 | 2025-11-14 | $198.1M | 59 | 0001950677-25-000007 |