Mariner Investment Group LLC In its 13F for Q1 2024 (holdings as of March 31, 2024, filed May 14, 2024), Mariner Investment Group LLC reported 12 stock positions worth $319.3 million . Its top holding was SS SPDR S&P 500 ETF Trust-US (SPY) at 63.8% of the portfolio, followed by Invesco Senior Loan ETF (BKLN, 25.8% ) and SS Blackstone Sr Loan ETF (SRLN, 7.1% ). Compared with Q4 2023, it opened 7 new positions, sold out of 7, added to 2 and reduced 1. The biggest buy was Invesco Senior Loan ETF (BKLN, shares +86% ) and the biggest sale SS SPDR S&P 500 ETF Trust-US (SPY, shares −39% ).
Location NEW YORK, NY
CIK 0001096978
Portfolio Value $319.3M (Q1 2024) Holdings 12 stocks · $319.3M Holdings quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock % Of Portfolio ▼ Shares Held Total Value Change vs Q4 2023 SPY SS SPDR S&P 500 ETF Trust-US 389,332 $203.6M Reduce -38.9% BKLN Invesco Senior Loan ETF 3,900,000 $82.5M Add +85.7% SRLN SS Blackstone Sr Loan ETF 541,034 $22.8M Add +60.3% LQD Ishr Ibx Usd Invgd CB ETF-Ui 42,500 $4.6M New JBLU Jetblue Airways Corp. 350,000 $2.6M New CCL Carnival Corp. 100,000 $1.6M New RIG Transocean Ltd. 80,000 $502K New GLATFELTER CORP 226,982 $454K New EAF Graftech International Ltd. 300,000 $414K New FLG New York Community Bancorp 50,000 $161K New POWER REIT 15,423 $12K No change BSLKW Golden Arrow Merger Corp. 19,150 $3K No change
Options reported separately and not counted above: VST calls ($1.7M), SAVEQ puts ($304K), SPY puts ($155K), PEG calls ($115K), MARA puts ($109K), IWM puts ($92K), JBLU puts ($33K), WULF calls ($13K), CCL calls ($12K), XLF puts ($8K).
Other holdings (6): bonds, preferreds, convertibles and warrants · $6K (not counted above) Security Class Shares / Principal Value Change BRLSW Oxus Acquisition Corp. -CW23 *W EXP 02/07/202 23,300 $3K New CYCUW Cycurion Inc.-CW27 *W EXP 02/13/203 30,000 $906 No change PUCKW Goal Acquisitions Corp.-CW *W EXP 99/99/999 50,000 $608 No change NBSTW Newbury Street Acq -CW27 *W EXP 04/30/202 12,413 $525 No change ATEKW Athena Technology Acq -CW23 *W EXP 10/17/202 10,000 $302 No change SHPSQ Shapeways Holdings Inc.-CW26 *W EXP 09/29/202 11,950 $45 No change
Total filed on the 13F, all lines: $319.3M.
Portfolio Sells Q4 2023 → Q1 2024 Portfolio Sells quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock Change vs Q4 2023 % Of Portfolio Change To Portfolio ▲ SPY SS SPDR S&P 500 ETF Trust-US Reduce -38.9% 63.77% −18.41 KRE SS SPDR S&P Regional Bank Sold out 0.00% −0.57 DBD Diebold Nixdorf Inc. Sold out 0.00% −0.49 EIM Eaton Vance Municipal Bond Sold out 0.00% −0.30 BLE BlackRock Muni Inc. TR II Sold out 0.00% −0.20 XMYDX BlackRock Muniyield Fund Sold out 0.00% −0.18 EVN Eaton Vance Muni Inc. TR Sold out 0.00% −0.11 NUV Nuveen Municipal Value Sold out 0.00% −0.03
Portfolio Buys Q4 2023 → Q1 2024 Portfolio Buys quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock Change vs Q4 2023 % Of Portfolio Change To Portfolio ▼ BKLN Invesco Senior Loan ETF Add +85.7% 25.83% +13.75 SRLN SS Blackstone Sr Loan ETF Add +60.3% 7.13% +3.29 LQD Ishr Ibx Usd Invgd CB ETF-Ui New 1.45% +1.45 JBLU Jetblue Airways Corp. New 0.81% +0.81 CCL Carnival Corp. New 0.51% +0.51 RIG Transocean Ltd. New 0.16% +0.16 GLATFELTER CORP New 0.14% +0.14 EAF Graftech International Ltd. New 0.13% +0.13 FLG New York Community Bancorp New 0.05% +0.05
Options Activity Q4 2023 → Q1 2024 Security Type Change vs Q4 2023 Underlying Shares Value ▼ VST Vistra Corp. call New 75,000 $1.7M ESPR Esperion Therapeutics Inc. call Sold out 400,000 $510Kbefore exit SAVEQ Spirit Airlines Inc. put New 1,500,000 $304K MARA Mara Holdings Inc. call Sold out 75,000 $298Kbefore exit SPY SS SPDR S&P 500 ETF Trust-US put Reduce -73.2% 130,000 $155K PEG Public Service Enterprise GP call New 50,000 $115K MARA Mara Holdings Inc. put Reduce -50.0% 375,000 $109K IWM iShares Russell 2000 ETF put Add +300.0% 400,000 $92K JETS US Global Jets ETF put Sold out 500,000 $36Kbefore exit JBLU Jetblue Airways Corp. put New 350,000 $33K CCL Carnival Corp. call New 80,000 $12K XLF SS Financial Select Sector put New 185,000 $8K HSBC HSBC Holdings PLC-Spons ADR put Sold out 100,000 $3Kbefore exit JPM JPMorgan Chase & Co. put Sold out 100,000 $500before exit
Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.
Notes & Other Activity Q4 2023 → Q1 2024 Security Class Change vs Q4 2023 Shares / Principal Value ▼ BRLSW Oxus Acquisition Corp. -CW23 *W EXP 02/07/202 New 23,300 $3K BRLSW Oxus Acquisition Corp. -CW23 *W EXP 99/99/999 Sold out 23,300 $1Kbefore exit
Bonds, preferreds, convertibles and warrants; not part of the stock holdings or percentages above.
All Filings Quarter Positions 13F Reported Value Top Holdings Q2 2026 60 $268.0M IBIT, SPY, RITM, SHY, CIM Q1 2026 42 $194.2M IBIT, RITM, FOUR, SHY, CIM Q4 2025 56 $1.6B MSFT, LRCX, GOOG, COST, IBIT Q3 2025 35 $257.5M IBIT, SPY, LQD, JFR, RITM Q2 2025 42 $273.8M SPY, IBIT, JFR, HYG, LQD Q1 2025 23 $251.6M SPY, BKLN, JFR, HYG, VST Q4 2024 30 $498.2M SPY, BKLN, FDX, TLT, GLW Q3 2024 18 $364.4M SPY, BKLN, JAAA, SRLN, HYG Q2 2024 12 $462.3M SPY, BKLN, SRLN, CCL, VST Q1 2024 12 $319.3M SPY, BKLN, SRLN, LQD, JBLU