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Mariner

Mariner Portfolio holdings

AUM $95.2B
1-Year Est. Return 32.92%
This Fund
S&P 500
This Quarter Est. Return
+19.43%
1 Year Est. Return
+32.92%
3 Year Est. Return
+93.86%
5 Year Est. Return
+109.77%
10 Year Est. Return
+319.93%
AUM
$95.2B
AUM Growth
+$9.54B
Cap. Flow
-$1.86B
Cap. Flow %
-1.95%
Top 10 Hldgs %
27.89%
Holding
4,003
New
458
Increased
1,438
Reduced
1,530
Closed
486

Top Buys

Rank Stock Value
1
MU icon
Micron Technology
MU
+$318M
2
JAZZ icon
Jazz Pharmaceuticals
JAZZ
+$125M
3
TJX icon
TJX Companies
TJX
+$120M
4
AGG icon
iShares Core US Aggregate Bond ETF
AGG
+$110M
5
VEA icon
Vanguard FTSE Developed Markets ETF
VEA
+$105M

Top Sells

Rank Stock Value
1
USD icon
ProShares Ultra Semiconductors
USD
+$318M
2
HD icon
Home Depot
HD
+$139M
3
MSFT icon
Microsoft
MSFT
+$129M
4
GLW icon
Corning
GLW
+$126M
5
IWY icon
iShares Russell Top 200 Growth ETF
IWY
+$113M

Sector Composition

Rank Sector Weight
1 Miscellaneous 40.96%
2 Technology 24.61%
3 Financials 7.71%
4 Healthcare 5.25%
5 Industrials 5.02%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
MASI
3751
DELISTED
Masimo
MASI
– –
-61,265
Closed -$10.9M
MCR
3752
DELISTED
MFS Charter Income Trust
MCR
– –
-11,740
Closed -$69.7K
MCW
3753
DELISTED
Mister Car Wash
MCW
– –
-106,257
Closed -$741K
MD icon
3754
Pediatrix Medical
MD
$2.2B
– –
-14,067
Closed -$301K
MDGL icon
3755
Madrigal Pharmaceuticals
MDGL
$12.5B
– –
-567
Closed -$296K
MEAR icon
3756
BlackRock Short Maturity Municipal Bond ETF
MEAR
$1.4B
– –
-40,527
Closed -$2.04M
MGM icon
3757
MGM Resorts International
MGM
$10.4B
– –
-6,077
Closed -$225K
MMS icon
3758
Maximus
MMS
$3.02B
– –
-5,453
Closed -$350K
MMTM icon
3759
State Street SPDR S&P 1500 Momentum Tilt ETF
MMTM
$162M
– –
-24,845
Closed -$6.96M
MOD icon
3760
Modine Manufacturing
MOD
$10.3B
– –
-3,078
Closed -$667K
MRCY icon
3761
Mercury Systems
MRCY
$4.96B
– –
-2,993
Closed -$218K
MTDR icon
3762
Matador Resources
MTDR
$7.32B
– –
-30,010
Closed -$1.9M
MTZ icon
3763
MasTec
MTZ
$19B
– –
-18,544
Closed -$5.97M
MUC icon
3764
BlackRock MuniHoldings California Quality Fund
MUC
$984M
– –
-13,343
Closed -$139K
NCA icon
3765
Nuveen California Municipal Value Fund
NCA
$296M
– –
-15,614
Closed -$146K
NMTC icon
3766
NeuroOne Medical Technologies
NMTC
$14.8M
– –
-1,737
Closed -$8.09K
NOTV
3767
DELISTED
Inotiv
NOTV
– –
-120,216
Closed -$32.8K
NOVT icon
3768
Novanta
NOVT
$5.61B
– –
-7,334
Closed -$865K
NPO icon
3769
Enpro
NPO
$6.29B
– –
-3,242
Closed -$813K
NUBD icon
3770
Nuveen ESG US Aggregate Bond ETF
NUBD
$489M
– –
-52,826
Closed -$1.17M
NUEM icon
3771
Nuveen ESG Emerging Markets Equity ETF
NUEM
$428M
– –
-20,914
Closed -$768K
NUS icon
3772
Nu Skin
NUS
$236M
– –
-38,371
Closed -$279K
NUV icon
3773
Nuveen Municipal Value Fund
NUV
$1.86B
– –
-11,661
Closed -$105K
NXT icon
3774
Nextpower Inc. Common Stock
NXT
$12.8B
– –
-13,826
Closed -$1.67M
OBIL icon
3775
US Treasury 12 Month Bill ETF
OBIL
$312M
– –
-8,507
Closed -$426K
149 150
151
152 153

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Mariner's Q2 2026 Portfolio in Review

As of Q2 2026, Mariner held 4,003 positions worth $95.2B, up 11% from $85.7B the previous quarter. Its ten largest holdings account for 28% of the portfolio.

Mariner's Q2 2026 filing shows 458 new, 1,438 increased, 1,530 reduced and 486 closed positions. Its largest new stake was Honeywell Aerospace: 217,569 shares worth $48.1M. The largest sale was ProShares Ultra Semiconductors, an estimated $318M.

By sector, the portfolio is most concentrated in Miscellaneous at 41% of assets, down from 43% a quarter earlier, followed by Technology and Financials.

  • Mariner's largest Q2 2026 buy was Honeywell Aerospace: 217,569 shares worth $48.1M.
  • Mariner added most to Micron Technology in Q2 2026, an estimated $318M increase.
  • Mariner's biggest Q2 2026 reduction was ProShares Ultra Semiconductors, cutting an estimated $318M.
  • Mariner fully exited Fidelity Fundamental Large Cap Core ETF in Q2 2026, selling an estimated $52.7M.
  • Mariner's ten largest holdings make up 28% of its $95.2B portfolio in Q2 2026.
  • Mariner opened 458 new positions and closed 486 in Q2 2026.
  • Mariner's portfolio value rose 11% quarter-over-quarter to $95.2B.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.