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MIG

Mariner Investment Group Portfolio holdings

AUM $463M
1-Year Est. Return 13.33%
This Fund
S&P 500
This Quarter Est. Return
+2.13%
1 Year Est. Return
+13.33%
3 Year Est. Return
–
5 Year Est. Return
–
10 Year Est. Return
–
AUM
$1.71B
AUM Growth
+$1.38B
Cap. Flow
+$1.45B
Cap. Flow %
84.65%
Top 10 Hldgs %
64.03%
Holding
130
New
52
Increased
17
Reduced
10
Closed
20

Top Buys

Rank Stock Value
1
MSFT icon
Microsoft
MSFT
+$172M
2
LRCX icon
Lam Research
LRCX
+$114M
3
COST icon
Costco
COST
+$113M
4
CSCO icon
Cisco
CSCO
+$102M
5
GOOG icon
Alphabet (Google) Class C
GOOG
+$100M

Top Sells

Rank Stock Value
1
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$26M
2
LQD icon
iShares iBoxx $ Investment Grade Corporate Bond ETF
LQD
+$21M
3
JFR icon
Nuveen Floating Rate Income Fund
JFR
+$12.8M
4
BHF icon
Brighthouse Financial
BHF
+$7.22M
5
CEG icon
Constellation Energy
CEG
+$2.94M

Sector Composition

Rank Sector Weight
1 Technology 49.3%
2 Industrials 8.37%
3 Communication Services 6.53%
4 Consumer Staples 6.35%
5 Materials 5.05%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
AERO
26
Grupo Aeromexico SAB de CV
AERO
$2.32B
$3.72M 0.22%
+169,280
New +$3.24M
CIM
27
Chimera Investment
CIM
$1B
$3.6M 0.21%
290,000
+175,000
+152% +$2.22M
MTZ icon
28
MasTec
MTZ
$21.9B
$3.15M 0.18%
14,500
+12,900
+806% +$2.71M
WMB icon
29
Williams Companies
WMB
$86.1B
$2.7M 0.16%
45,000
+5,000
+13% +$302K
TLN
30
Talen Energy Corp
TLN
$16.7B
$1.87M 0.11%
+5,000
New +$1.94M
FIX icon
31
Comfort Systems
FIX
$59.6B
$1.87M 0.11%
+2,000
New +$1.85M
RRC icon
32
Range Resources
RRC
$8.95B
$1.62M 0.09%
46,000
+31,000
+207% +$1.15M
FERG icon
33
Ferguson
FERG
$49.8B
$1.34M 0.08%
+6,000
New +$1.43M
AR icon
34
Antero Resources
AR
$10.7B
$1.33M 0.08%
+38,500
New +$1.3M
LYB icon
35
PUT
LyondellBasell Industries
LYB
$19.2B
$1.32M 0.08%
500,000
+300,000
+150% +$13.6M
CMCSA icon
36
Comcast
CMCSA
$90B
$1.27M 0.07%
+42,500
New +$1.21M
EQT icon
37
EQT Corp
EQT
$32.3B
$1.07M 0.06%
+20,000
New +$1.12M
DY icon
38
Dycom Industries
DY
$12.3B
$1.01M 0.06%
+3,000
New +$946K
KR icon
39
Kroger
KR
$34.8B
$937K 0.05%
15,000
+5,000
+50% +$327K
VST icon
40
Vistra
VST
$47.4B
$807K 0.05%
5,000
-10,000
-67% -$1.82M
VMI icon
41
Valmont Industries
VMI
$9.53B
$805K 0.05%
2,000
– –
GLW icon
42
CALL
Corning
GLW
$143B
$738K 0.04%
200,000
– –
VRT icon
43
CALL
Vertiv
VRT
$105B
$664K 0.04%
+75,000
New +$13M
CC icon
44
Chemours
CC
$2.37B
$648K 0.04%
55,000
– –
LUMN icon
45
Lumen
LUMN
$6.44B
$583K 0.03%
75,000
– –
CEG icon
46
CALL
Constellation Energy
CEG
$95.6B
$563K 0.03%
+30,000
New +$10.9M
CCK icon
47
Crown Holdings
CCK
$13.1B
$515K 0.03%
+5,000
New +$487K
CCOI icon
48
PUT
Cogent Communications
CCOI
$508M
$478K 0.03%
105,000
– –
LEN icon
49
PUT
Lennar Class A
LEN
$21.2B
$459K 0.03%
+58,500
New +$7.06M
LGN
50
Legence Corp
LGN
$4.95B
$430K 0.03%
+10,000
New +$395K
1
2
3 4 5

Similar funds

CPIM
Coalescence Partners Investment Management New York $463M AUM 8.27% 1-Year Est. Return
NG
NatWest Group Edinburgh, Scotland, United Kingdom $462M AUM 47.31% 1-Year Est. Return
PC
ParaFi Capital New York $462M AUM 12.81% 1-Year Est. Return
AC
Aristides Capital Louisville, Kentucky $462M AUM 28.94% 1-Year Est. Return
PRCP
Pacific Ridge Capital Partners Lake Oswego, Oregon $462M AUM 40.76% 1-Year Est. Return
RAA
RWC Asset Advisors Miami, Florida $464M AUM 93.73% 1-Year Est. Return
GLAM
Gardner Lewis Asset Management Chadds Ford, Pennsylvania $462M AUM 65.29% 1-Year Est. Return
ACGA
Atlanta Consulting Group Advisors Atlanta, Georgia $465M AUM 17.21% 1-Year Est. Return

Mariner Investment Group's Q4 2025 Portfolio in Review

As of Q4 2025, Mariner Investment Group held 130 positions worth $1.71B, up 418% from $331M the previous quarter. Its ten largest holdings account for 64% of the portfolio.

Mariner Investment Group deployed $1.45B of net new capital in Q4 2025, opening 52 new positions and adding to 17 existing holdings. Its largest new stake was Microsoft: 344,000 shares worth $166M.

By sector, the portfolio is most concentrated in Technology at 49% of assets, up from 2% a quarter earlier, followed by Industrials and Communication Services.

On the sell side, the largest reduction was Nuveen Floating Rate Income Fund, an estimated $12.8M trimmed.

  • Mariner Investment Group's largest Q4 2025 buy was Microsoft: 344,000 shares worth $166M.
  • Mariner Investment Group added most to iShares Bitcoin Trust in Q4 2025, an estimated $7.47M increase.
  • Mariner Investment Group's biggest Q4 2025 reduction was Nuveen Floating Rate Income Fund, cutting an estimated $12.8M.
  • Mariner Investment Group fully exited State Street SPDR S&P 500 ETF Trust in Q4 2025, selling an estimated $26M.
  • Mariner Investment Group's ten largest holdings make up 64% of its $1.71B portfolio in Q4 2025.
  • Mariner Investment Group opened 52 new positions and closed 20 in Q4 2025.
  • Mariner Investment Group's portfolio value rose 418% quarter-over-quarter to $1.71B.

Based on Mariner Investment Group's 13F filing for Q4 2025, filed 25 Feb 2026.