Mariner Investment Group LLC

13F filer · CIK 0001096978

Reported Jul 27, 2026

Net buyer this quarter

13F portfolio value$463MU.S. long equity reported on 13F

Positions5420 new · 6 closed

Net flow last quarter+$67.8MBuys minus sells

Top 10 positions weight43.5%Concentration

Holdings

13F · last 4 quarters free

Scroll for earlier quarters

Company	Value	% of portfolio	% of company	POSITION CHANGE qoq %	First reported
Q2 2026Reported Jul 27, 202654 positions
IBITiShares Bitcoin Trust ETF	$104M	22.49%	0.22%	Not reported	Q2 2025
SPYSPDR S&P 500 ETF Trust	$57.1M	12.33%	Not reported	Not reported	Q3 2013
RITMRithm Capital Corp.	$12.5M	2.70%	0.24%	Not reported	Q2 2015
CIMChimera Investment Corp	$5.05M	1.09%	0.45%	Not reported	Q2 2015
ETREntergy Corp	$4.59M	0.99%	0.01%	Not reported	Q4 2024
LECOLincoln Electric Holdings Inc	$4.17M	0.90%	0.03%	+161.8%	Q2 2025
WMBWilliams Companies, Inc.	$4.09M	0.88%	0.00%	+22.2%	Q2 2013
GLWCorning Inc	$3.58M	0.77%	0.00%	Not reported	Q3 2024
MTZMastec Inc	$3.33M	0.72%	0.01%	+33.3%	Q2 2025
AEROGrupo Aeromexico, S.A.B. de C.V.	$3.05M	0.66%	0.01%	Not reported	Q4 2025
FERGFerguson Enterprises Inc.	$2.85M	0.61%	0.01%	Not reported	Q2 2025
RWTRedwood Trust Inc	$2.61M	0.56%	0.44%	Not reported	Q1 2025
FOURShift4 Payments, Inc.	$2.43M	0.53%	0.06%	-65.5%	Q3 2025
MFAMfa Financial, Inc.	$2.03M	0.44%	0.21%	Not reported	Q1 2026
PMTPennyMac Mortgage Investment Trust	$2.03M	0.44%	0.21%	Not reported	Q2 2015
TOLToll Brothers, Inc.	$1.65M	0.36%	0.01%	New	Q2 2026
BHFBrighthouse Financial, Inc.	$1.58M	0.34%	0.04%	Not reported	Q3 2025
FIXComfort Systems USA Inc	$1.49M	0.32%	0.00%	Not reported	Q1 2025
IRENIREN Ltd	$1.37M	0.30%	0.01%	Not reported	Q4 2024
LUMNLumen Technologies, Inc.	$1.34M	0.29%	0.02%	+133.3%	Q4 2024
DXDynex Capital Inc	$1.25M	0.27%	0.04%	Not reported	Q4 2022
GEVGE Vernova Inc.	$1.17M	0.25%	0.00%	New	Q2 2026
RRCRange Resources Corp	$1.12M	0.24%	0.01%	Not reported	Q3 2014
EQTEQT Corp	$1.06M	0.23%	0.00%	Not reported	Q3 2024
SABRSabre Corp	$836K	0.18%	0.10%	New	Q2 2026
WMTWalmart Inc.	$823K	0.18%	0.00%	Not reported	Q4 2013
WIXWix.com Ltd.	$778K	0.17%	0.03%	+90.5%	Q1 2026
KRMNKarman Holdings Inc.	$749K	0.16%	0.01%	+200.0%	Q1 2026
QQnity Electronics, Inc.	$653K	0.14%	0.00%	New	Q2 2026
CORZCore Scientific, Inc./tx	$640K	0.14%	0.01%	+25.0%	Q1 2026
CIFRCipher Digital Inc.	$613K	0.13%	0.01%	Not reported	Q4 2024
CSCOCisco Systems, Inc.	$587K	0.13%	0.00%	Not reported	Q4 2025
CCKCrown Holdings, Inc.	$559K	0.12%	0.00%	Not reported	Q4 2025
AESAes Corp	$513K	0.11%	0.00%	Not reported	Q1 2026
CRWVCoreWeave, Inc.	$498K	0.11%	Not reported	Not reported	Q3 2025
FLEXFlex Ltd.	$486K	0.10%	0.00%	New	Q2 2026
WOLFWolfspeed, Inc.	$483K	0.10%	0.02%	-60.0%	Q3 2025
XPROExpro Ltd	$443K	0.10%	Not reported	+50.0%	Q3 2025
IHRTiHeartMedia, Inc.	$438K	0.09%	2.03%	+61.6%	Q1 2026
TWOTwo Harbors Investment Corp.	$407K	0.09%	Not reported	Not reported	Q3 2014
MCDMcdonalds Corp	$405K	0.09%	0.00%	Not reported	Q4 2013
MITTTPG Mortgage Investment Trust, Inc.	$381K	0.08%	0.15%	Not reported	Q4 2021
NENoble Corp plc	$373K	0.08%	0.01%	Not reported	Q2 2025
TDSTelephone & Data Systems Inc	$370K	0.08%	0.01%	+100.0%	Q4 2025
PKGPackaging Corp of America	$357K	0.08%	0.00%	Not reported	Q1 2026
USARUSA Rare Earth, Inc.	$324K	0.07%	0.01%	New	Q2 2026
AVEXAEVEX Corp.	$283K	0.06%	1352.80%	New	Q2 2026
PMTSCPI Card Group Inc.	$271K	0.06%	0.11%	-27.7%	Q3 2019
TSEMTower Semiconductor Ltd	$261K	0.06%	0.00%	New	Q2 2026
ENPHEnphase Energy, Inc.	$246K	0.05%	0.00%	New	Q2 2026

Q1 2026Reported May 5, 202640 positions
IBITiShares Bitcoin Trust ETF	$120M	34.76%	0.23%	+45.8%	Q2 2025
RITMRithm Capital Corp.	$12.6M	3.65%	0.24%	+53.4%	Q2 2015
FOURShift4 Payments, Inc.	$6.34M	1.83%	0.18%	+16.0%	Q3 2025
CIMChimera Investment Corp	$4.76M	1.37%	0.45%	+30.7%	Q2 2015
ETREntergy Corp	$4.49M	1.30%	0.01%	-11.1%	Q4 2024
WMBWilliams Companies, Inc.	$3.28M	0.95%	0.00%	Not reported	Q2 2013
RWTRedwood Trust Inc	$3.09M	0.89%	0.44%	-26.2%	Q1 2025
CATCaterpillar Inc	$2.69M	0.78%	0.00%	New	Q1 2026
AEROGrupo Aeromexico, S.A.B. de C.V.	$2.37M	0.69%	0.01%	Not reported	Q4 2025
PMTPennyMac Mortgage Investment Trust	$2.1M	0.61%	0.21%	Not reported	Q2 2015
MFAMfa Financial, Inc.	$2.01M	0.58%	0.21%	New	Q1 2026
MTZMastec Inc	$1.93M	0.56%	0.01%	-58.6%	Q2 2025
LECOLincoln Electric Holdings Inc	$1.49M	0.43%	0.01%	-62.5%	Q2 2025
RRCRange Resources Corp	$1.36M	0.39%	0.01%	-34.8%	Q3 2014
EQTEQT Corp	$1.27M	0.37%	0.00%	Not reported	Q3 2024
DXDynex Capital Inc	$1.21M	0.35%	0.05%	Not reported	Q4 2022
SOLSSolstice Advanced Materials Inc.	$1.14M	0.33%	0.01%	New	Q1 2026
WMTWalmart Inc.	$903K	0.26%	0.00%	Not reported	Q4 2013
LGNLegence Corp.	$847K	0.24%	Not reported	+50.0%	Q4 2025
MCHPMicrochip Technology Inc	$840K	0.24%	0.00%	New	Q1 2026
WIXWix.com Ltd.	$811K	0.23%	0.02%	New	Q1 2026
MTSIMACOM Technology Solutions Holdings, Inc.	$666K	0.19%	0.00%	New	Q1 2026
LUMNLumen Technologies, Inc.	$521K	0.15%	0.01%	Not reported	Q4 2024
CCKCrown Holdings, Inc.	$501K	0.14%	0.00%	Not reported	Q4 2025
AESAes Corp	$493K	0.14%	0.00%	New	Q1 2026
NENoble Corp plc	$491K	0.14%	0.01%	Not reported	Q2 2025
WOLFWolfspeed, Inc.	$408K	0.12%	0.05%	+25.0%	Q3 2025
KRMNKarman Holdings Inc.	$400K	0.12%	0.00%	New	Q1 2026
TWOTwo Harbors Investment Corp.	$374K	0.11%	Not reported	Not reported	Q3 2014
MITTTPG Mortgage Investment Trust, Inc.	$352K	0.10%	0.15%	Not reported	Q4 2021
XPROExpro Ltd	$348K	0.10%	Not reported	Not reported	Q3 2025
PKGPackaging Corp of America	$318K	0.09%	0.00%	New	Q1 2026
CORZCore Scientific, Inc./tx	$299K	0.09%	0.01%	New	Q1 2026
PMTSCPI Card Group Inc.	$262K	0.08%	0.16%	Not reported	Q3 2019
TDSTelephone & Data Systems Inc	$211K	0.06%	0.00%	Not reported	Q4 2025
IHRTiHeartMedia, Inc.	$184K	0.05%	1.25%	New	Q1 2026
WINGWingstop Inc.	$155K	0.04%	0.00%	New	Q1 2026
AOMRAngel Oak Mortgage REIT, Inc.	$146K	0.04%	0.07%	New	Q1 2026
BRLSWBorealis Foods Inc.	$1.81K	0.00%	Not reported	Not reported	Q1 2022
CYCUWCycurion, Inc.	$618	0.00%	Not reported	Not reported	Q4 2022
Q4 2025Reported Feb 25, 202656 positions
MSFTMicrosoft Corp	$166M	9.71%	0.00%	Not reported	Q3 2013
LRCXLam Research Corp	$126M	7.36%	0.06%	New	Q4 2025
GOOGAlphabet Inc.	$110M	6.41%	Not reported	New	Q4 2025
COSTCostco Wholesale Corp	$108M	6.29%	0.03%	New	Q4 2025
IBITiShares Bitcoin Trust ETF	$107M	6.22%	0.15%	+6.5%	Q2 2025
CSCOCisco Systems, Inc.	$106M	6.17%	0.03%	New	Q4 2025
ASMLAsml Holding NV	$99.5M	5.81%	0.02%	New	Q4 2025
TXNTexas Instruments Inc	$97M	5.66%	0.06%	New	Q4 2025
NVDANvidia Corp	$92.7M	5.41%	0.00%	New	Q4 2025
LINLinde PLC	$85.3M	4.98%	0.04%	New	Q4 2025
INTCIntel Corp	$81.2M	4.74%	0.04%	Not reported	Q2 2013
HONHoneywell International Inc	$76.5M	4.47%	0.06%	New	Q4 2025
AAPLApple Inc.	$67.4M	3.94%	0.00%	Not reported	Q2 2013
MAMastercard Inc	$57.1M	3.33%	0.01%	Not reported	Q4 2013
CTASCintas Corp	$50.6M	2.95%	0.07%	Not reported	Q2 2014
MCDMcdonalds Corp	$49.8M	2.91%	0.02%	Not reported	Q4 2013
LOWLowes Companies Inc	$24.4M	1.42%	0.02%	New	Q4 2025
IGLBBimergen Energy Corp	$20.2M	1.18%	Not reported	New	Q4 2025
RITMRithm Capital Corp.	$9.47M	0.55%	0.16%	-10.9%	Q2 2015
FOURShift4 Payments, Inc.	$7.87M	0.46%	0.15%	+177.8%	Q3 2025
DUKDuke Energy CORP	$6.01M	0.35%	0.01%	+28.1%	Q2 2025
JFRNuveen Floating Rate Income Fund	$4.96M	0.29%	Not reported	-71.9%	Q1 2014
ETREntergy Corp	$4.16M	0.24%	0.01%	Not reported	Q4 2024
RWTRedwood Trust Inc	$4.12M	0.24%	0.60%	-12.0%	Q1 2025
LECOLincoln Electric Holdings Inc	$3.83M	0.22%	0.03%	+6.7%	Q2 2025
AEROGrupo Aeromexico, S.A.B. de C.V.	$3.72M	0.22%	0.01%	New	Q4 2025
CIMChimera Investment Corp	$3.6M	0.21%	0.35%	+152.2%	Q2 2015
MTZMastec Inc	$3.15M	0.18%	0.02%	+806.3%	Q2 2025
WMBWilliams Companies, Inc.	$2.7M	0.16%	0.00%	+12.5%	Q2 2013
TLNTalen Energy Corp	$1.87M	0.11%	0.01%	New	Q4 2025
FIXComfort Systems USA Inc	$1.87M	0.11%	0.01%	Not reported	Q1 2025
RRCRange Resources Corp	$1.62M	0.09%	0.02%	+206.7%	Q3 2014
FERGFerguson Enterprises Inc.	$1.34M	0.08%	0.00%	Not reported	Q2 2025
ARANTERO RESOURCES Corp	$1.33M	0.08%	0.01%	Not reported	Q2 2016
CMCSAComcast Corp	$1.27M	0.07%	0.00%	Not reported	Q4 2013
EQTEQT Corp	$1.07M	0.06%	0.00%	Not reported	Q3 2024
DYDycom Industries Inc	$1.01M	0.06%	0.01%	Not reported	Q3 2024
KRKroger Co	$937K	0.05%	0.00%	+50.0%	Q4 2024
VSTVistra Corp.	$807K	0.05%	0.00%	-66.7%	Q1 2021
VMIValmont Industries Inc	$805K	0.05%	0.01%	Not reported	Q2 2025
CCChemours Co	$648K	0.04%	0.04%	Not reported	Q3 2025
LUMNLumen Technologies, Inc.	$583K	0.03%	0.01%	Not reported	Q4 2024
CCKCrown Holdings, Inc.	$515K	0.03%	0.00%	New	Q4 2025
LGNLegence Corp.	$430K	0.03%	Not reported	New	Q4 2025
WOLFWolfspeed, Inc.	$348K	0.02%	0.07%	-20.0%	Q3 2025
MLMMartin Marietta Materials Inc	$311K	0.02%	0.00%	Not reported	Q2 2025
CRDOCredo Technology Group Holding Ltd	$288K	0.02%	0.00%	New	Q4 2025
VMCVulcan Materials CO	$285K	0.02%	0.00%	Not reported	Q2 2025
NENoble Corp plc	$282K	0.02%	0.01%	Not reported	Q2 2025
XPROExpro Ltd	$267K	0.02%	Not reported	Not reported	Q3 2025

Q3 2025Reported Nov 14, 202536 positions
IBITiShares Bitcoin Trust ETF	$131M	39.62%	0.15%	+142.3%	Q2 2025
SPYSPDR S&P 500 ETF Trust	$25.6M	7.74%	Not reported	-70.3%	Q3 2013
JFRNuveen Floating Rate Income Fund	$18.5M	5.58%	Not reported	-43.0%	Q1 2014
RITMRithm Capital Corp.	$11.1M	3.36%	0.18%	+1850.0%	Q2 2015
BHFBrighthouse Financial, Inc.	$7.22M	2.18%	0.24%	New	Q3 2025
DUKDuke Energy CORP	$4.95M	1.50%	0.01%	-20.0%	Q2 2025
RWTRedwood Trust Inc	$4.91M	1.48%	0.67%	+323.7%	Q1 2025
ETREntergy Corp	$4.19M	1.27%	0.01%	-10.0%	Q4 2024
LECOLincoln Electric Holdings Inc	$3.54M	1.07%	0.03%	+114.3%	Q2 2025
FOURShift4 Payments, Inc.	$3.48M	1.05%	0.05%	New	Q3 2025
VSTVistra Corp.	$2.94M	0.89%	0.00%	-40.0%	Q1 2021
CEGConstellation Energy Corp	$2.67M	0.81%	0.00%	+170.0%	Q4 2024
WMBWilliams Companies, Inc.	$2.53M	0.77%	0.00%	-27.3%	Q2 2013
AMDAdvanced Micro Devices Inc	$2.02M	0.61%	0.00%	New	Q3 2025
CIMChimera Investment Corp	$1.52M	0.46%	0.14%	Not reported	Q2 2015
EIMEaton Vance Municipal Bond Fund	$1.16M	0.35%	Not reported	-41.6%	Q2 2014
ADArray Digital Infrastructure, Inc.	$1.06M	0.32%	0.02%	-52.7%	Q4 2024
CCChemours Co	$871K	0.26%	0.04%	New	Q3 2025
UPSUnited Parcel Service Inc	$835K	0.25%	0.00%	Not reported	Q3 2014
VMIValmont Industries Inc	$775K	0.23%	0.01%	Not reported	Q2 2025
WOLFWolfspeed, Inc.	$715K	0.22%	0.02%	New	Q3 2025
KRKroger Co	$674K	0.20%	0.00%	Not reported	Q4 2024
SVXYProShares Trust II	$637K	0.19%	Not reported	Not reported	Q3 2024
RRCRange Resources Corp	$565K	0.17%	0.01%	-57.1%	Q3 2014
LUMNLumen Technologies, Inc.	$459K	0.14%	0.01%	Not reported	Q4 2024
CRHCRH Public Ltd Co	$360K	0.11%	0.00%	Not reported	Q2 2025
MTZMastec Inc	$340K	0.10%	0.00%	-68.0%	Q2 2025
SSTKShutterstock, Inc.	$336K	0.10%	0.05%	New	Q3 2025
MLMMartin Marietta Materials Inc	$315K	0.10%	0.00%	Not reported	Q2 2025
VMCVulcan Materials CO	$308K	0.09%	0.00%	Not reported	Q2 2025
NENoble Corp plc	$283K	0.09%	0.01%	Not reported	Q2 2025
CRWVCoreWeave, Inc.	$274K	0.08%	Not reported	New	Q3 2025
XPROExpro Ltd	$238K	0.07%	Not reported	New	Q3 2025
DANDANA Inc	$200K	0.06%	0.01%	Not reported	Q2 2025
BRLSWBorealis Foods Inc.	$1.78K	0.00%	Not reported	Not reported	Q1 2022
CYCUWCycurion, Inc.	$1.21K	0.00%	Not reported	Not reported	Q4 2022

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