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Mariner

Mariner Portfolio holdings

AUM $85.7B
1-Year Est. Return 24.21%
This Fund
S&P 500
This Quarter Est. Return
+11.61%
1 Year Est. Return
+24.21%
3 Year Est. Return
+74.24%
5 Year Est. Return
+87.67%
10 Year Est. Return
+269.13%
AUM
$69.3B
AUM Growth
+$9.18B
Cap. Flow
+$3.47B
Cap. Flow %
5.01%
Top 10 Hldgs %
26.5%
Holding
3,740
New
311
Increased
1,893
Reduced
1,169
Closed
273

Top Buys

Rank Stock Value
1
AAPL icon
Apple
AAPL
+$261M
2
MSFT icon
Microsoft
MSFT
+$169M
3
GEV icon
GE Vernova
GEV
+$143M
4
IVV icon
iShares Core S&P 500 ETF
IVV
+$107M
5
JPM icon
JPMorgan Chase
JPM
+$90.8M

Sector Composition

Rank Sector Weight
1 Technology 20.78%
2 Financials 8.14%
3 Consumer Discretionary 5.23%
4 Healthcare 4.75%
5 Communication Services 4.62%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
SGRY icon
3651
Surgery Partners
SGRY
$2.06B
-10,088
Closed -$240K
SH icon
3652
ProShares Short S&P500
SH
$887M
-60,000
Closed -$2.67M
SITM icon
3653
SiTime
SITM
$16.6B
-1,556
Closed -$238K
SIZE icon
3654
iShares MSCI USA Size Factor ETF
SIZE
$427M
-2,750
Closed -$400K
SLE icon
3655
Super League Enterprise
SLE
$4.28M
-80
Closed -$8.99K
SLRN
3656
DELISTED
ACELYRIN
SLRN
-31,389
Closed -$77.5K
SMTC icon
3657
Semtech
SMTC
$11.7B
-6,456
Closed -$222K
SNDR icon
3658
Schneider National
SNDR
$6.59B
-9,634
Closed -$220K
TAOX
3659
Tao Synergies Inc
TAOX
$24.6M
-10,328
Closed -$25K
SNX icon
3660
TD Synnex
SNX
$19.4B
-6,007
Closed -$624K
SPB icon
3661
Spectrum Brands
SPB
$2.04B
-3,551
Closed -$254K
SPCE icon
3662
Virgin Galactic
SPCE
$320M
-10,728
Closed -$32.5K
SPLB icon
3663
State Street SPDR Portfolio Long Term Corporate Bond ETF
SPLB
$1.18B
-10,249
Closed -$231K
SQM icon
3664
Sociedad Química y Minera de Chile
SQM
$19.6B
-5,715
Closed -$227K
SRI icon
3665
Stoneridge
SRI
$209M
-20,465
Closed -$93.9K
SRPT icon
3666
Sarepta Therapeutics
SRPT
$1.66B
-7,459
Closed -$476K
STAA icon
3667
STAAR Surgical
STAA
$1.16B
-16,588
Closed -$292K
STEP icon
3668
StepStone Group
STEP
$3.48B
-5,467
Closed -$286K
STEM icon
3669
Stem
STEM
$49.2M
-2,058
Closed -$14.4K
STGW icon
3670
Stagwell
STGW
$1.84B
-12,951
Closed -$78.4K
STKL
3671
DELISTED
SunOpta
STKL
-10,524
Closed -$51.1K
STRW icon
3672
Strawberry Fields REIT
STRW
$192M
-11,074
Closed -$132K
SVC
3673
Service Properties Trust
SVC
$1.1B
-8,097
Closed -$106K
SWTX
3674
DELISTED
SpringWorks Therapeutics
SWTX
-9,241
Closed -$408K
SXI icon
3675
Standex International
SXI
$3.68B
-1,798
Closed -$290K

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Mariner's Q2 2025 Portfolio in Review

As of Q2 2025, Mariner held 3,740 positions worth $69.3B, up 15% from $60.1B the previous quarter. Its ten largest holdings account for 26% of the portfolio.

Mariner deployed $3.47B of net new capital in Q2 2025, opening 311 new positions and adding to 1,893 existing holdings. Its largest new stake was iShares MSCI USA Small-Cap Min Vol Factor ETF: 384,640 shares worth $16.2M.

By sector, the portfolio is most concentrated in Technology at 21% of assets, up from 18% a quarter earlier, followed by Financials and Consumer Discretionary.

On the sell side, the largest reduction was Union Pacific, an estimated $83.9M trimmed.

  • Mariner's largest Q2 2025 buy was iShares MSCI USA Small-Cap Min Vol Factor ETF: 384,640 shares worth $16.2M.
  • Mariner added most to Apple in Q2 2025, an estimated $261M increase.
  • Mariner's biggest Q2 2025 reduction was Union Pacific, cutting an estimated $83.9M.
  • Mariner fully exited Discover Financial Services in Q2 2025, selling an estimated $7.86M.
  • Mariner's ten largest holdings make up 26% of its $69.3B portfolio in Q2 2025.
  • Mariner opened 311 new positions and closed 273 in Q2 2025.
  • Mariner's portfolio value rose 15% quarter-over-quarter to $69.3B.

Based on Mariner's 13F filing for Q2 2025, filed 14 Aug 2025.