13F-HR filed by MARINER INVESTMENT GROUP LLC
MARINER INVESTMENT GROUP LLC filed this 13F-HR for the quarter ended 2025-12-31, filed 2026-02-25, with 111 holding rows worth $1,712,737,524.
- Accession
- 0001096978-26-000004
- Filer
- CIK 1096978
- Filed
- 2026-02-25
- Accepted by EDGAR
- acceptance time not in the bulk data set
- Ingested
- Source
- SEC quarterly data set
13F report for Q4 2025
A holdings report, 111 entries on the cover page, a total value of $1,712,737,524 stated on the cover page (in dollars after the unit check, H1), rows summing to $1,712,737,524 with VALUE read as dollars as filed, 13F file number 028-11231. The quarter's positions are built on this report. The resolved quarter.
The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).
| Issuer as filed | CUSIP | Class | Amount | Value | Value read as | Type |
|---|---|---|---|---|---|---|
| Microsoft Corp | 594918104 | COM | 344,000 | $166,365,280 | dollars as filed | |
| Lam Research Corporation | 512807306 | COM | 736,000 | $125,988,480 | dollars as filed | |
| Alphabet Inc. Reg. Shares C | 02079K107 | COM | 350,000 | $109,830,000 | dollars as filed | |
| Costco Wholesale Corporation | 22160K105 | COM | 125,000 | $107,792,500 | dollars as filed | |
| IShares Bitcoin Trust Registered | 46438F101 | SHS | 2,146,536 | $106,575,512 | dollars as filed | |
| Cisco Systems,Inc. | 17275R102 | COM | 1,372,000 | $105,685,160 | dollars as filed | |
| ASMLHLDGNVFSPONSOREDADR1ADRREPS1ORDSHS | N07059210 | STOK | 93,000 | $99,496,980 | dollars as filed | |
| Texas Instruments Incorporated | 882508104 | COM | 559,000 | $96,980,910 | dollars as filed | |
| NVIDIA Corp | 67066G104 | COM | 497,000 | $92,690,500 | dollars as filed | |
| Linde plc | G54950103 | COM | 200,000 | $85,278,000 | dollars as filed | |
| Intel Corp | 458140100 | COM | 2,200,000 | $81,180,000 | dollars as filed | |
| Honeywell Technologies | 438516106 | COM | 392,000 | $76,475,280 | dollars as filed | |
| Apple Inc | 037833100 | COM | 248,000 | $67,421,280 | dollars as filed | |
| MasterCard, Inc | 57636Q104 | COM | 100,000 | $57,088,000 | dollars as filed | |
| CINTAS CORP COM | 172908105 | Stock | 269,000 | $50,590,830 | dollars as filed | |
| McDonalds Corporation | 580135101 | COM | 163,000 | $49,817,690 | dollars as filed | |
| Lowes Companies,Inc. | 548661107 | COM | 101,000 | $24,357,160 | dollars as filed | |
| ALIBABA GROUP HLDG LTD | 01609WBG6 | NOTE 0.500% 6/0 | 15,000,000 | $23,332,500 | dollars as filed | principal |
| FORD MTR CO | 345370CZ1 | NOTE 3/1 | 20,000,000 | $20,820,000 | dollars as filed | principal |
| ISHARES 10 Y INVE GRADE COR B | 464289511 | 10+ YR INVST GRD | 400,000 | $20,180,000 | dollars as filed | |
| FLUOR CORP | 343412AJ1 | NOTE 1.125% 8/1 | 15,100,000 | $17,239,670 | dollars as filed | principal |
| NEXTERA ENERGY CAP HLDGS INC | 65339KCY4 | NOTE 3.000% 3/0 | 10,000,000 | $12,435,000 | dollars as filed | principal |
| ON SEMICONDUCTOR CORP | 682189AU9 | NOTE 0.500% 3/0 | 10,000,000 | $9,485,000 | dollars as filed | principal |
| RITHM CAPITAL CORP COM NEW | 64828T201 | REIT | 868,711 | $9,468,950 | dollars as filed | |
| SHIFT4 PMTS INC CL A | 82452J109 | Stock | 125,000 | $7,871,250 | dollars as filed | |
| SNOWFLAKE INC | 833445AB5 | NOTE 10/0 | 5,000,000 | $7,435,000 | dollars as filed | principal |
| LIVE NATION ENTERTAINMENT IN | 538034BA6 | NOTE 3.125% 1/1 | 5,000,000 | $7,277,500 | dollars as filed | principal |
| Duke Energy Corporation | 26441C204 | COM | 51,250 | $6,007,013 | dollars as filed | |
| Live Nation Entertainment In Note 2.875 percent 1/1 | 538034BC2 | Convertible | 5,000,000 | $5,265,000 | dollars as filed | principal |
| NUVEEN FLOATING RATE INCOME | 67072T108 | COM | 633,488 | $4,960,211 | dollars as filed | |
| ENTERGY CORP NEW COM | 29364G103 | Stock | 45,000 | $4,159,350 | dollars as filed | |
| REDWOOD TRUST INC | 758075402 | COM | 745,346 | $4,121,763 | dollars as filed | |
| LINCOLN ELEC HLDGS INC | 533900106 | COM | 16,000 | $3,834,240 | dollars as filed | |
| GRUPO AEROMEXICO SAB DE CV | 40054J109 | SPONSORED ADS | 169,280 | $3,717,389 | dollars as filed | |
| CHIMERA INVT CORP | 16934Q802 | COM SHS | 290,000 | $3,604,700 | dollars as filed | |
| MASTEC INC COM | 576323109 | Stock | 14,500 | $3,151,865 | dollars as filed | |
| WILLIAMS COS INC COM | 969457100 | Stock | 45,000 | $2,704,950 | dollars as filed | |
| TALEN ENERGY CORP COM | 87422Q109 | Stock | 5,000 | $1,874,200 | dollars as filed | |
| COMFORT SYS USA INC COM | 199908104 | Stock | 2,000 | $1,866,580 | dollars as filed | |
| Redwood Trust Inc Note 7.750 percent 6/1 | 758075AF2 | Convertible | 1,800,000 | $1,795,500 | dollars as filed | principal |
| RANGE RES CORP COM | 75281A109 | Stock | 46,000 | $1,621,960 | dollars as filed | |
| REDFIN CORP | 75737FAE8 | NOTE 0.500% 4/0 | 1,645,000 | $1,547,945 | dollars as filed | principal |
| FERGUSON ENTERPRISES INC COMMON STOCK NEW | 31488V107 | Stock | 6,000 | $1,335,780 | dollars as filed | |
| ANTERO RESOURCES CORP COM | 03674X106 | Stock | 38,500 | $1,326,710 | dollars as filed | |
| LYONDELLBASELL INDUSTRIES NV SHS - A - | N53745100 | Stock | 500,000 | $1,316,000 | dollars as filed | put |
| Comcast Corp | 20030N101 | COM | 42,500 | $1,270,325 | dollars as filed | |
| EQT CORP COM | 26884L109 | Stock | 20,000 | $1,072,000 | dollars as filed | |
| PennyMac Corp | 70932AAH6 | Convertible Bond | 1,000,000 | $1,063,000 | dollars as filed | principal |
| DYCOM INDS INC COM | 267475101 | Stock | 3,000 | $1,013,700 | dollars as filed | |
| KROGER CO COM | 501044101 | Stock | 15,000 | $937,200 | dollars as filed | |
| VISTRA CORP COM | 92840M102 | Stock | 5,000 | $806,650 | dollars as filed | |
| VALMONT INDS INC COM | 920253101 | Stock | 2,000 | $804,640 | dollars as filed | |
| CORNING INC | 219350105 | COM | 200,000 | $738,000 | dollars as filed | call |
| VERTIV HOLDINGS CO COM CL A | 92537N108 | Stock | 75,000 | $663,750 | dollars as filed | call |
| CHEMOURS CO COM | 163851108 | Stock | 55,000 | $648,450 | dollars as filed | |
| LUMEN TECHNOLOGIES INC | 550241103 | COM | 75,000 | $582,750 | dollars as filed | |
| CONSTELLATION ENERGY CORP COM | 21037T109 | Stock | 30,000 | $562,500 | dollars as filed | call |
| CROWN HLDGS INC COM | 228368106 | Stock | 5,000 | $514,850 | dollars as filed | |
| COGENT COMMUNICATIONS GROUP | 19239V302 | COM NEW | 105,000 | $477,750 | dollars as filed | put |
| LENNAR CORP CL A | 526057104 | Stock | 58,500 | $459,225 | dollars as filed | put |
| LEGENCE CORP | 52476L109 | CL A | 10,000 | $430,400 | dollars as filed | |
| DOW HLDGS INC COM | 260557103 | Stock | 550,000 | $411,500 | dollars as filed | put |
| WOLFSPEED INC | 977852AP7 | NOTE 2.500% 6/1 | 271,000 | $402,774 | dollars as filed | principal |
| OLIN CORP | 680665205 | COM PAR $1 | 200,000 | $362,500 | dollars as filed | put |
| WOLFSPEED INC | 97785W106 | COMMON STOCK | 20,000 | $348,200 | dollars as filed | |
| MARTIN MARIETTA MATLS INC COM | 573284106 | Stock | 500 | $311,330 | dollars as filed | |
| CREDO TECHNOLOGY GROUP HOLDING ORDINARY SHARES | G25457105 | Stock | 2,000 | $287,780 | dollars as filed | |
| VULCAN MATLS CO COM | 929160109 | Stock | 1,000 | $285,220 | dollars as filed | |
| NOBLE CORP PLC ORD SHS A | G65431127 | Stock | 10,000 | $282,400 | dollars as filed | |
| EXPRO GROUP HOLDINGS NV | N3144W105 | COMMON STOCK | 20,000 | $267,000 | dollars as filed | |
| FS KKR CAP CORP | 302635206 | COM | 425,000 | $266,250 | dollars as filed | put |
| D R HORTON INC COM | 23331A109 | Stock | 61,500 | $258,300 | dollars as filed | put |
| BUILDERS FIRSTSOURCE INC COM | 12008R107 | Stock | 100,000 | $237,500 | dollars as filed | put |
| POST HLDGS INC | 737446104 | COM | 75,000 | $225,000 | dollars as filed | put |
| ISHARES TR | 464287457 | COM | 2,636 | $218,314 | dollars as filed | |
| WORTHINGTON ENTERPRISES INC | 981811102 | COM | 4,196 | $216,388 | dollars as filed | |
| Caterpillar Inc. | 149123101 | COM | 40,000 | $210,000 | dollars as filed | call |
| TELEPHONE & DATA SYS INC | 879433829 | COM NEW | 5,000 | $205,000 | dollars as filed | |
| ISHARES TR | 464288513 | IBOXX HI YD ETF | 2,500 | $201,575 | dollars as filed | |
| VISTRA CORP COM | 92840M102 | Stock | 35,000 | $196,875 | dollars as filed | call |
| ISHARES TR | 464288513 | IBOXX HI YD ETF | 1,496,000 | $192,710 | dollars as filed | put |
| Broadcom Inc. | 11135F101 | COM | 10,000 | $180,750 | dollars as filed | call |
| ConocoPhillips | 20825C104 | COM | 50,000 | $175,000 | dollars as filed | put |
| COREWEAVE INC COM CL A | 21873S108 | COM | 2,000 | $143,220 | dollars as filed | |
| ONEOK INC NEW | 682680103 | COM | 100,000 | $127,500 | dollars as filed | put |
| HALLIBURTON CO COM | 406216101 | Stock | 100,000 | $126,000 | dollars as filed | put |
| CARRIER GLOBAL CORPORATION COM | 14448C104 | Stock | 50,000 | $125,000 | dollars as filed | put |
| WILLIAMS COS INC COM | 969457100 | Stock | 150,000 | $125,000 | dollars as filed | call |
| EATON VANCE MUNICIPAL BOND FUN | 27827X101 | COM | 12,181 | $118,521 | dollars as filed | |
| INTERNATIONAL PAPER CO COM | 460146103 | Stock | 100,000 | $117,500 | dollars as filed | put |
| RANGE RES CORP COM | 75281A109 | Stock | 130,000 | $91,000 | dollars as filed | call |
| iShares Russell 2000 ETF | 464287655 | SHS | 206,500 | $90,110 | dollars as filed | put |
| INVESCO QQQ TR | 46090E103 | COM | 50,000 | $66,750 | dollars as filed | call |
| FMC CORP COM NEW | 302491303 | Stock | 50,000 | $66,250 | dollars as filed | put |
| UNITED AIRLS HLDGS INC COM | 910047109 | Stock | 75,000 | $64,125 | dollars as filed | put |
| SPY | 78462F103 | SHS | 75,000 | $53,625 | dollars as filed | put |
| BLACKSTONE SECD LENDING FD | 09261X102 | COMMON STOCK | 125,000 | $43,750 | dollars as filed | put |
| Comcast Corp | 20030N101 | COM | 120,000 | $41,400 | dollars as filed | put |
| SMURFIT WESTROCK PLC SHS | G8267P108 | Stock | 50,000 | $40,000 | dollars as filed | put |
| SPY | 78462F103 | SHS | 50,000 | $39,250 | dollars as filed | call |
| iShares Expanded Tech-Software Sector ETF | 464287515 | SHS | 50,000 | $37,500 | dollars as filed | put |
| DELTA AIR LINES INC COM NEW | 247361702 | Stock | 50,000 | $30,000 | dollars as filed | put |
| HOWMET AEROSPACE INC COM | 443201108 | Stock | 25,000 | $18,750 | dollars as filed | put |
| DOXIMITY INC CL A | 26622P107 | Stock | 40,000 | $5,000 | dollars as filed | put |
| COREWEAVE INC COM CL A | 21873S108 | COM | 25,000 | $3,875 | dollars as filed | call |
| CHEMOURS CO COM | 163851108 | Stock | 50,000 | $2,500 | dollars as filed | call |
| Duke Energy Corporation | 26441C204 | COM | 25,000 | $1,250 | dollars as filed | call |
| BOREALIS FOODS INC | 09973D113 | *W EXP 02/07/202 | 23,300 | $1,167 | dollars as filed | |
| CYCURION INC | 95758L115 | *W EXP 02/13/203 | 30,000 | $1,020 | dollars as filed | |
| BOLT PROJECTS HLDS | 09769b115 | WT | 19,150 | $317 | dollars as filed | |
| SPY | 78462F103 | SHS | 0 | $0 | dollars as filed | Value filed as zero, left out of ratios.Amount filed as zero, left out of ratios. |
Amendment chain
| Filing | Role | Filed | Accepted | Ingested |
|---|---|---|---|---|
| 13F-HR 0001096978-26-000004 | this filing | 2026-02-25 | acceptance time not in the bulk data set |