Latest MARINER INVESTMENT GROUP LLC Stock Portfolio

MARINER INVESTMENT GROUP LLC Performance:

2025 Q4: -2.17%YTD: 3.29%2024: 12.17%

Performance for 2025 Q4 is -2.17%, and YTD is 3.29%, and 2024 is 12.17%.

About MARINER INVESTMENT GROUP LLC and 13F Hedge Fund Stock Holdings

On 2026-02-25, the fund reported it's updated stock portfolio. In the 13F Holdings report, MARINER INVESTMENT GROUP LLC reported an equity portfolio of $1.7 Billions as of 31 Dec, 2025.

The top stock holdings of MARINER INVESTMENT GROUP LLC are MSFT, LRCX, GOOG. The fund has invested 9.7% of it's portfolio in MICROSOFT CORP and 7.4% of portfolio in LAM RESEARCH CORP.

The fund managers got completely rid off SPDR S&P 500 ETF TR (SPY), ISHARES TR (IJR) and BRIGHTHOUSE FINL INC (BHF) stocks. They significantly reduced their stock positions in EATON VANCE MUN BD FD, VISTRA CORP (VST) and REDWOOD TRUST INC (RWT). MARINER INVESTMENT GROUP LLC opened new stock positions in MICROSOFT CORP (MSFT), LAM RESEARCH CORP (LRCX) and ALPHABET INC (GOOG). The fund showed a lot of confidence in some stocks as they added substantially to MASTEC INC (MTZ), RANGE RES CORP (RRC) and SHIFT4 PMTS INC (FOUR).

MARINER INVESTMENT GROUP LLC Annual Return Estimates Vs S&P 500

Our best estimate is that MARINER INVESTMENT GROUP LLC made a return of -2.17% in the last quarter. In trailing 12 months, it's portfolio return was 3.29%.

Performance
S&P 500

New Buys

Ticker	$ Bought
microsoft corp	166,365,000
lam research corp	125,988,000
alphabet inc	109,830,000
costco whsl corp new	107,792,000
cisco sys inc	105,685,000
asml holding n v	99,497,000
texas instrs inc	96,980,900
nvidia corporation	92,690,500

New stocks bought by MARINER INVESTMENT GROUP LLC

Additions

Ticker	% Inc.
mastec inc	806
range res corp	206
alibaba group hldg ltd	200
fluor corp	196
shift4 pmts inc	177
chimera invt corp	152
ford mtr co	100
on semiconductor corp	100

Additions to existing portfolio by MARINER INVESTMENT GROUP LLC

Reductions

Ticker	% Reduced
eaton vance mun bd fd	-89.58
nuveen floating rate income	-71.93
vistra corp	-66.67
redwood trust inc	-45.45
wolfspeed inc	-20.00
redwood trust inc	-12.04
rithm capital corp	-10.9

MARINER INVESTMENT GROUP LLC reduced stake in above stock

Sold off

Ticker	$ Sold
jd.com inc	-10,770,000
ishares tr	-20,956,400
brighthouse finl inc	-7,218,880
spdr s&p 500 etf tr	-25,596,000
array digital infrastructure	-1,064,810
shutterstock inc	-335,977
proshares tr ii	-636,750
advanced micro devices inc	-2,022,380

MARINER INVESTMENT GROUP LLC got rid off the above stocks

Sector Distribution

MARINER INVESTMENT GROUP LLC has about 46.6% of it's holdings in Technology sector.

Sector	%
Technology	46.6
Others	15.1
Industrials	8.6
Communication Services	6.9
Consumer Defensive	6.8
Basic Materials	5.4
Consumer Cyclical	4.7
Financial Services	3.6
Real Estate	1.1

Market Cap. Distribution

MARINER INVESTMENT GROUP LLC has about 83.1% of it's portfolio invested in the large-cap and mega-cap stocks.

Category	%
MEGA-CAP	71.8
UNALLOCATED	15.1
LARGE-CAP	11.3

Stocks belong to which Index?

About 82.3% of the stocks held by MARINER INVESTMENT GROUP LLC either belong to S&P 500 or RUSSELL 2000 index.

Index	%
S&P 500	82.3
Others	16.9

Top 5 Winners (%)		%
LUMN	lumen technologies inc	27.0 %
XPRO	expro group holdings nv	12.4 %
VMI	valmont inds inc	3.8 %
LECO	lincoln elec hldgs inc	1.6 %
MTZ	mastec inc	1.2 %

Top 5 Winners ($)		$
LUMN	lumen technologies inc	0.1 M
LECO	lincoln elec hldgs inc	0.1 M
MTZ	mastec inc	0.0 M
XPRO	expro group holdings nv	0.0 M
VMI	valmont inds inc	0.0 M

Top 5 Losers (%)		%
	bolt projs hldgs inc	-58.6 %
	coreweave inc	-47.7 %
	wolfspeed inc	-35.2 %
	borealis foods inc	-34.5 %
CC	chemours co	-25.6 %

Top 5 Losers ($)		$
	ishares bitcoin trust etf	-31.9 M
FOUR	shift4 pmts inc	-1.2 M
	nuveen floating rate income	-0.5 M
RITM	rithm capital corp	-0.5 M
VST	vistra corp	-0.3 M

MARINER INVESTMENT GROUP LLC Holdings Map

This heatmap illustrates the top 50 positions within the fund's portfolio.

Current Stock Holdings of MARINER INVESTMENT GROUP LLC

MARINER INVESTMENT GROUP LLC has 59 stocks in it's portfolio. About 64% of the portfolio is in top 10 stocks. proved to be the most loss making stock for the portfolio. LUMN was the most profitable stock for MARINER INVESTMENT GROUP LLC last quarter.

Last Reported on: 25 Feb, 2026

Ticker	Namesorted ascending	% Portfolio	Shares Held	$ Value	Type	% Change
AAPL	apple inc	3.94	248,000	67,421,300	new

AAXJ	ishares tr	0.01	2,500	201,575	new

AGQ	proshares tr ii	0.00	0.00	0.00	sold off	-100

AMD	advanced micro devices inc	0.00	0.00	0.00	sold off	-100

AOA	ishares tr	1.18	400,000	20,180,000	new

AR	antero resources corp	0.08	38,500	1,326,710	new

ASML	asml holding n v	5.81	93,000	99,497,000	new

BABA	alibaba group hldg ltd	1.36	15,000,000	23,332,500	added	200

BHF	brighthouse finl inc	0.00	0.00	0.00	sold off	-100

CC	chemours co	0.04	55,000	648,450	unchanged	0.00

CCK	crown hldgs inc	0.03	5,000	514,850	new

CIM	chimera invt corp	0.21	290,000	3,604,700	added	152

CMCSA	comcast corp new	0.07	42,500	1,270,320	new

COST	costco whsl corp new	6.29	125,000	107,792,000	new

CRDO	credo technology group holdi	0.02	2,000	287,780	new

CRH	crh plc	0.00	0.00	0.00	sold off	-100

CSCO	cisco sys inc	6.17	1,372,000	105,685,000	new

CTAS	cintas corp	2.95	269,000	50,590,800	new

DAN	dana inc	0.00	0.00	0.00	sold off	-100

DUK	duke energy corp new	0.35	51,250	6,007,010	added	28.12