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Mariner

Mariner Portfolio holdings

AUM $95.2B Turnover 23.58%
1-Year Est. Return 32.92%
This Fund
S&P 500
This Quarter Est. Return
-0.96%
1 Year Est. Return
+32.92%
3 Year Est. Return
+93.86%
5 Year Est. Return
+109.77%
10 Year Est. Return
+319.92%
AUM
$85.7B
AUM Growth
+$1.66B
Cap. Flow
+$4.07B
Cap. Flow %
4.75%
Top 10 Hldgs %
27.24%
Holding
3,909
New
385
Increased
1,802
Reduced
1,276
Closed
364
Avg Time Held
3.2 years
Top 10 Avg Time Held
4.1 years
Top 20 Avg Time Held
5.4 years

Top Buys

Rank Stock Value
1
APO icon
Apollo Global Management
APO
+$274M
2
IEI icon
iShares 3-7 Year Treasury Bond ETF
IEI
+$184M
3
MSFT icon
Microsoft
MSFT
+$172M
4
VEA icon
Vanguard FTSE Developed Markets ETF
VEA
+$170M
5
AGG icon
iShares Core US Aggregate Bond ETF
AGG
+$169M

Top Sells

Rank Stock Value
1
IEF icon
iShares 7-10 Year Treasury Bond ETF
IEF
+$179M
2
TMUS icon
T-Mobile US
TMUS
+$162M
3
USD icon
ProShares Ultra Semiconductors
USD
+$135M
4
NOW icon
ServiceNow
NOW
+$128M
5
ABT icon
Abbott
ABT
+$126M

Sector Composition

Rank Sector Weight
1 Miscellaneous 43.33%
2 Technology 21.37%
3 Financials 7.66%
4 Healthcare 5.22%
5 Consumer Discretionary 5.2%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow Held Since
ZTR icon
3851
Virtus Total Return Fund
ZTR
$312M
– –
-13,956
Closed -$87.9K –
FLUT icon
3852
Flutter Entertainment
FLUT
$13.2B
– –
-7,128
Closed -$1.53M –
DAY icon
3853
DELISTED
Dayforce
DAY
– –
-108,856
Closed -$7.53M –
AHR icon
3854
American Healthcare REIT
AHR
$11.6B
– –
-19,703
Closed -$924K –
TELO icon
3855
Telomir Pharmaceuticals
TELO
$77.3M
– –
-11,631
Closed -$15.5K –
UMAC icon
3856
Unusual Machines
UMAC
$891M
– –
-16,043
Closed -$204K –
PACS icon
3857
PACS Group
PACS
$7.56B
– –
-26,319
Closed -$1.01M –
LRGG icon
3858
Nomura Focused Large Growth ETF
LRGG
$294M
– –
-7,301
Closed -$216K –
RPT icon
3859
Rithm Property Trust
RPT
$83.9M
– –
-19,970
Closed -$69.8K –
TEM icon
3860
Tempus AI
TEM
$12.9B
– –
-68,858
Closed -$4.06M –
RSPA icon
3861
Invesco S&P 500 Equal Weight Income Advantage ETF
RSPA
$1.24B
– –
-5,060
Closed -$258K –
CON icon
3862
Concentra Group Holdings
CON
$4.99B
– –
-11,559
Closed -$228K –
TXNM icon
3863
TXNM Energy Inc
TXNM
$6.45B
– –
-13,531
Closed -$796K –
ZBIO icon
3864
Zenas BioPharma
ZBIO
$1.66B
– –
-7,676
Closed -$279K –
PMBS icon
3865
PIMCO Mortgage-Backed Securities Active Exchange-Traded Fund
PMBS
$1.39B
– –
-21,400
Closed -$1.06M –
AMTM icon
3866
Amentum Holdings
AMTM
$4.67B
– –
-48,837
Closed -$1.42M –
BTGD icon
3867
STKd 100% Bitcoin & 100% Gold ETF
BTGD
$50.9M
– –
-5,860
Closed -$201K –
NNOV icon
3868
Innovator Growth-100 Power Buffer ETF - November
NNOV
$78.2M
– –
-7,060
Closed -$203K –
LDRT icon
3869
iShares iBonds 1-5 Year Treasury Ladder ETF
LDRT
$273M
– –
-24,888
Closed -$630K –
SMBS icon
3870
Schwab Mortgage-Backed Securities ETF
SMBS
$6.17B
– –
-29,388
Closed -$755K –
NUAI icon
3871
New Era Energy & Digital Inc
NUAI
$402M
– –
-26,700
Closed -$78.2K –
JBTM icon
3872
JBT Marel
JBTM
$5.5B
– –
-2,703
Closed -$407K –
TBCH icon
3873
Turtle Beach Corp
TBCH
$290M
– –
-12,256
Closed -$172K –
BBNX icon
3874
Beta Bionics
BBNX
$934M
– –
-20,671
Closed -$630K –
XIFR icon
3875
XPLR Infrastructure LP
XIFR
$926M
– –
-10,067
Closed -$101K –
152 153 154
155
156

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Alphabet Inc
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BNP Paribas Asset Management
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Sanders Capital
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Mariner's Q1 2026 Portfolio in Review

As of Q1 2026, Mariner held 3,909 positions worth $85.7B, up 2% from $84B the previous quarter. Its ten largest holdings account for 27% of the portfolio.

Mariner deployed $4.07B of net new capital in Q1 2026, opening 385 new positions and adding to 1,802 existing holdings. Its largest new stake was BNY Mellon Dynamic Value ETF: 960,263 shares worth $28.5M.

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

On the sell side, the largest reduction was iShares 7-10 Year Treasury Bond ETF, an estimated $179M trimmed.

  • Mariner's largest Q1 2026 buy was BNY Mellon Dynamic Value ETF: 960,263 shares worth $28.5M.
  • Mariner added most to Apollo Global Management in Q1 2026, an estimated $274M increase.
  • Mariner's biggest Q1 2026 reduction was iShares 7-10 Year Treasury Bond ETF, cutting an estimated $179M.
  • Mariner fully exited Exact Sciences in Q1 2026, selling an estimated $11.1M.
  • Mariner's ten largest holdings make up 27% of its $85.7B portfolio in Q1 2026.
  • Mariner opened 385 new positions and closed 364 in Q1 2026.
  • Mariner's portfolio value rose 2% quarter-over-quarter to $85.7B.

Based on Mariner's 13F filing for Q1 2026, filed 13 May 2026.