SEC Form 13F

MARINER INVESTMENT GROUP LLC 13F Holdings

Inspect MARINER INVESTMENT GROUP LLC's 2026-06-30 SEC 13F positions, public filing date, amendments and original receipt.

As of 2026-07-28T03:59:59.999Z

Report period
2026-06-30
Publicly available
2026-07-28
Reported value
$463,109,047
Positions
123

Read this manager's filing book

Step 1 of 3

Disclosed positions

MARINER INVESTMENT GROUP LLC: source evidence dated 2026-07-28T03:59:59.999Z.

Issuer
ISHARES BITCOIN TRUST ETF
Ticker
IBIT
Class
SHS BEN INT
Reported value
$104,176,128
Reported amount
3,129,352
Unit
SH
Option
None
What you should see

The displayed owner or issuer and source fields identify the receipt to verify; keep reporting and availability dates separate.

Step 2 of 3

What was reported for this quarter?

13F positions are dated quarter-end holdings, with later publication and possible amendments. Read report period and availability before calling them current.

SEC 13F-HR: 0001096978-26-000006
What you should see

Open the effective filing receipt and inspect shares, value and any put/call classification separately.

Step 3 of 3

Browse institutional filings

Open the effective filing receipt and inspect shares, value and any put/call classification separately.

Browse institutional filings
What you should see

Keep reporting dates and units beside the answer, and inspect its original citations.

Disclosed positions

See the complete disclosed positions
ISHARES BITCOIN TRUST ETFIBITSHS BEN INT$104,176,1283,129,352SHNone
STATE STR SPDR S&P 500 ETF TSPYTR UNIT$57,109,23676,475SHNone
ALIBABA GROUP HLDG LTDBABANOTE 0.500% 6/0$35,430,00030,000,000PRNNone
FLUOR CORPFLRNOTE 1.125% 8/1$33,301,42525,100,000PRNNone
DOORDASH INCUnresolvedNOTE 5/1$24,656,25025,000,000PRNNone
GLOBAL PMTS INCGPNNOTE 1.500% 3/0$22,500,00025,000,000PRNNone
INVESCO QQQ TRQQQUNIT SER 1$19,474,0001,400,000SHCall
RIVIAN AUTOMOTIVE INCRIVNNOTE 3.625%10/1$16,015,86815,000,000PRNNone
RITHM CAPITAL CORPRITMCOM NEW$12,512,9541,332,583SHNone
AKAMAI TECHNOLOGIES INCUnresolvedNOTE 0.250% 5/1$10,955,6267,500,000PRNNone
ISHARES TRSHY1 3 YR TREAS BD$8,309,450101,199SHNone
LIVE NATION ENTERTAINMENT INLYVNOTE 2.875% 1/1$5,980,0005,000,000PRNNone
CHIMERA INVT CORPCIMCOM SHS$5,054,513378,899SHNone
ISHARES TRMUBNATIONAL MUN ETF$4,891,75945,454SHNone
ENTERGY CORP NEWETRCOM$4,594,40040,000SHNone
VANGUARD SCOTTSDALE FDSVCSHSHRT TRM CORP BD$4,213,64353,317SHNone
LINCOLN ELEC HLDGS INCLECOCOM$4,169,83515,705SHNone
WILLIAMS COS INCWMBCOM$4,088,70055,000SHNone
CORNING INCGLWCOM$3,576,02014,000SHNone
SHIFT4 PMTS INCFOUR6 SER A CNV PREF$3,424,85055,000SHNone
MASTEC INCMTZCOM$3,328,4808,000SHNone
GRUPO AEROMEXICO SAB DE CVAEROSPONSORED ADS$3,047,040169,280SHNone
FERGUSON ENTERPRISES INCFERGCOMMON STOCK NEW$2,847,96012,000SHNone
ISHARES INCEWZMSCI BRAZIL ETF$2,760,00080,000SHNone
REDWOOD TRUST INCRWTCOM$2,608,711550,361SHNone
COHERENT CORPCOHRCOM$2,440,02536,500SHCall
SHIFT4 PMTS INCFOURCL A$2,432,00050,000SHNone
ISHARES TRIEI3 7 YR TREAS BD$2,413,71520,551SHNone
CIENA CORPCIENCOM NEW$2,142,00036,000SHCall
ISHARES TRIEF7-10 YR TRSY BD$2,136,90422,596SHNone
PENNYMAC CORPPMTNOTE 8.500% 6/0$2,046,6002,000,000PRNNone
MFA FINL INCMFACOM$2,034,900210,000SHNone
PENNYMAC MTG INVT TRPMTCOM$2,030,400180,000SHNone
ISHARES TRHYGIBOXX HI YD ETF$1,967,26224,600SHNone
REDWOOD TRUST INCRWTNOTE 7.750% 6/1$1,827,0001,800,000PRNNone
TOLL BROTHERS INCTOLCOM$1,647,50010,000SHNone
REDFIN CORPRDFNNOTE 0.500% 4/0$1,587,4251,645,000PRNNone
BRIGHTHOUSE FINL INCBHFCOM$1,582,50025,000SHNone
ISHARES TRTLT20 YR TR BD ETF$1,562,47418,080SHNone
QNITY ELECTRONICS INCQCOMMON STOCK$1,555,000100,000SHCall
COMFORT SYS USA INCFIXCOM$1,486,463750SHNone
IREN LIMITEDIRENORDINARY SHARES$1,371,90030,000SHNone
LUMEN TECHNOLOGIES INCLUMNCOM$1,344,000175,000SHNone
DYNEX CAP INCDXCOM$1,245,45095,000SHNone
GE VERNOVA INCGEVCOM$1,174,8601,000SHNone
ISHARES TRIGVEXPANDED TECH$1,132,50012,500SHNone
RANGE RES CORPRRCCOM$1,115,70030,000SHNone
ENTEGRIS INCENTGCOM$1,085,00050,000SHCall
EQT CORPEQTCOM$1,063,40020,000SHNone
LYONDELLBASELL INDUSTRIES NVUnresolvedPUT$1,045,000200,000SHPut

Largest 50 positions by reported value; the filing may contain more positions.

How amendments affect these holdings

This view uses 1 effective filing version(s). A restatement replaces the previous book; a new-holdings amendment adds positions. 5 positions lack a resolved ticker and 48 positions are put or call entries.

A 13F is a delayed quarterly snapshot of disclosed holdings. It is not a complete trade ledger and does not reveal every position in a manager's portfolio. Option values refer to the reported underlying position rather than a traded option premium.

Quarter end and public filing date

Use the filing's public availability date when constructing a historical observation. The quarter-end report period is earlier and cannot be substituted for when the public learned the holdings.

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