Stocks/Funds/CIK 1096978

MARINER INVESTMENT GROUP LLC

Quarterly 13F filings · Latest period 2026-03-31 · CIK 1096978
Assets
$194M
-22.8% YoY
Holdings
44
Lifetime alpha vs market
+21.30% annual
Average hold time
0.7 yr
median 0.5 yr

Quarterly history

Cum return +344% vs S&P +78% · α +267% lifetimeAUM $194M · peak $1.6BFlow $-1.4B (-90%)2015-122017-062018-122020-062021-122023-122025-062026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
-8.52%
trims when stocks drop
when a holding falls −10%+
Middle response
-4.53%
baseline attrition
Rally response
-15.95%
trims into rallies
when a holding rises +10%+

Top positions · 30

Ticker$ value% portYoYHold time
IBITiShares Bitcoin Trust ET$120M61.9%1.0 yr
RITM-PDRithm Capital Corp.$13M6.5%1.5 yr
FOURShift4 Payments, Inc.$6M3.3%-46.5%0.8 yr
SHYiShares 1-3 Year Treasur$6M3.2%0.5 yr
CIMChimera Investment Corpo$5M2.4%+6.4%0.8 yr
ETREntergy Corporation$4M2.3%+35.0%1.5 yr
VCSHVanguard Short-Term Corp$4M2.1%0.3 yr
WMBThe Williams Companies, $3M1.7%+25.8%1.3 yr
RWTRedwood Trust, Inc.$3M1.6%+1.6%1.3 yr
CATCaterpillar Inc.$3M1.4%+117.8%0.3 yr
$2M1.2%0.5 yr
PMTPennyMac Mortgage Invest$2M1.1%-12.6%0.3 yr
MFAMFA Financial, Inc.$2M1.0%+4.7%0.3 yr
MTZMasTec, Inc.$2M1.0%+175.7%1.0 yr
LECOLincoln Electric Holding$1M0.8%+33.0%1.0 yr

Portfolio composition (YoY)

Industry mix
Asset Management66.1%+1.2pp$128M
REIT - Mortgage13.7%+13.4pp$27M
Software - Infrastructure3.8%$7M
Regulated Electric2.3%+1.6pp$4M
Asset Management - Bonds2.1%-4.4pp$4M
Oil & Gas Midstream1.7%+1.0pp$3M
Engineering & Construction1.4%+1.3pp$3M
Agricultural - Machinery1.4%$3M
Oil & Gas Exploration & Production1.4%-2.3pp$3M
Unknown1.2%+0.8pp$2M
Country
US98.4%-1.1pp
Unknown1.2%+0.8pp
IL0.4%
Top 5: 77.3% · Top 10: 86.4% · Top 25: 96.8%

Winners

TickerPrev $PnLYoY %
ETR$2M+0.00B35.0%
RRC$3M+0.00B14.2%
WMB$2M+0.00B25.8%
EQT$2M+0.00B20.5%
LUMN$0M+0.00B77.3%

Losers

TickerPrev $PnLYoY %

Top buys this quarter · 15

CAT Caterpillar Inc.new+$3M
PMT PennyMac Mortgage Investment Tnew+$2M
MFA MFA Financial, Inc.new+$2M
SOLS Solstice Advanced Materials Innew+$1M
CIM Chimera Investment Corporation+$1M
DX Dynex Capital, Inc.+$1M
FOUR Shift4 Payments, Inc.+$6M
MCHP Microchip Technology Incorporanew+$1M
WIX Wix.com Ltd.new+$1M
MTSI MACOM Technology Solutions Holnew+$1M

Top sells this quarter · 15

LRCX Lam Research Corporationexit$157M
MSFT Microsoft Corporationexit$127M
COST Costco Wholesale Corporationexit$125M
ASML ASML Holding N.V.exit$123M
TXN Texas Instruments Incorporatedexit$109M
CSCO Cisco Systems, Inc.exit$106M
GOOG Alphabet Inc.exit$100M
LIN Linde plcexit$99M
INTC Intel Corporationexit$97M
HON Honeywell International Inc.exit$89M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$194M44+26.44%+17.59%+8.84%-1.44B
2025-12-31$1.60B59+18.52%+17.72%+0.80%+1.33B
2025-09-30$257M38+18.18%+17.52%+0.66%-0.03B
2025-06-30$274M45+17.24%+14.94%+2.30%-0.01B
2025-03-31$252M26+9.50%+8.30%+1.19%-0.23B
2024-12-31$498M32+26.12%+24.89%+1.24%+0.12B
2024-09-30$364M22+27.23%+36.04%-8.81%-0.13B
2024-06-30$462M17+25.22%+38.23%-13.01%+0.13B
2024-03-31$320M18+15.49%+42.44%-26.96%-0.09B
2023-12-31$368M18+67.71%+22.68%+45.04%+0.36B
2023-03-31$3M20+12.47%-7.82%+20.29%-0.03B
2022-12-31$32M76+5.40%-18.17%+23.58%-0.04B
2022-09-30$70M173+102.44%-15.51%+117.95%-0.05B
2022-06-30$73M183-30.52%-16.11%-14.41%+0.02B
2022-03-31$75M156-2.31%-4.62%+2.31%-0.15B
2021-12-31$231M176+86.05%+11.07%+74.98%+0.17B