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Mariner Portfolio holdings
AUM
$85.7B
1-Year Est. Return
24.21%
This Fund
S&P 500
This Quarter
Est. Return
-0.96%
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
$85.7B
AUM Growth
+$1.66B
(+2%)
Cap. Flow
+$4.07B
Cap. Flow
% of AUM
4.75%
Top 10 Holdings %
Top 10 Hldgs %
27.24%
Holding
3,909
New
385
Increased
1,802
Reduced
1,276
Closed
364
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apollo Global Management
APO
|
+$274M |
| 2 |
iShares 3-7 Year Treasury Bond ETF
IEI
|
+$184M |
| 3 |
Microsoft
MSFT
|
+$172M |
| 4 |
Vanguard FTSE Developed Markets ETF
VEA
|
+$170M |
| 5 |
iShares Core US Aggregate Bond ETF
AGG
|
+$169M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
iShares 7-10 Year Treasury Bond ETF
IEF
|
+$179M |
| 2 |
T-Mobile US
TMUS
|
+$162M |
| 3 |
ProShares Ultra Semiconductors
USD
|
+$135M |
| 4 |
ServiceNow
NOW
|
+$128M |
| 5 |
Abbott
ABT
|
+$126M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 21.37% |
| 2 | Financials | 7.66% |
| 3 | Healthcare | 5.22% |
| 4 | Consumer Discretionary | 5.2% |
| 5 | Industrials | 4.64% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1926
Teck Resources
TECK
$29.5B
| $1.06M | ﹤0.01% |
20,462
+2,995
| +17% | +$160K |
|
1927
Costamare
CMRE
$1.9B
| $1.05M | ﹤0.01% |
62,383
-23,286
| -27% | -$387K |
|
1928
Westamerica Bancorp
WABC
$1.39B
| $1.05M | ﹤0.01% |
20,193
+2,381
| +13% | +$121K |
|
1929
SGHC Ltd
SGHC
$7.3B
| $1.05M | ﹤0.01% |
97,091
+3,818
| +4% | +$39K |
|
1930
ARK 21Shares Bitcoin ETF
ARKB
$2.45B
| $1.05M | ﹤0.01% |
46,624
+2,934
| +7% | +$74.4K |
|
1931
United States Copper Index Fund
CPER
$742M
| $1.05M | ﹤0.01% |
+30,423
| New | +$1.09M |
|
1932
ACI Worldwide
ACIW
$5.72B
| $1.05M | ﹤0.01% |
25,499
+5,922
| +30% | +$249K |
|
1933
Ambarella
AMBA
$2.99B
| $1.04M | ﹤0.01% |
20,304
+12,927
| +175% | +$806K |
|
1934
Flowers Foods
FLO
$1.64B
| $1.04M | ﹤0.01% |
128,060
-29,078
| -19% | -$292K |
|
1935
Franklin Electric
FELE
$4.67B
| $1.04M | ﹤0.01% |
11,335
-1,488
| -12% | -$146K |
|
1936
NB Bancorp
NBBK
$983M
| $1.04M | ﹤0.01% |
49,495
+13,129
| +36% | +$276K |
|
|
GAM
1937
General American Investors Company
GAM
$1.54B
| $1.04M | ﹤0.01% |
17,796
+2,490
| +16% | +$150K |
|
1938
Kemper
KMPR
$1.7B
| $1.04M | ﹤0.01% |
33,919
-34,849
| -51% | -$1.19M |
|
1939
Alpha Tau Medical
DRTS
$1.13B
| $1.04M | ﹤0.01% |
146,396
+21,231
| +17% | +$150K |
|
|
SUNB
1940
Sunbelt Rentals Holdings
SUNB
$31B
| $1.03M | ﹤0.01% |
+15,904
| New | +$1.12M |
|
1941
Appian
APPN
$1.74B
| $1.03M | ﹤0.01% |
42,874
+18,736
| +78% | +$509K |
|
|
Q
1942
Qnity Electronics Inc
Q
$28.3B
| $1.03M | ﹤0.01% |
8,988
-36,318
| -80% | -$3.86M |
|
1943
Under Armour Class C
UA
$2.92B
| $1.03M | ﹤0.01% |
178,300
+4,628
| +3% | +$29.2K |
|
1944
Diodes
DIOD
$4B
| $1.03M | ﹤0.01% |
15,132
+3,535
| +30% | +$223K |
|
|
SAIL
1945
SailPoint Inc
SAIL
$8.48B
| $1.03M | ﹤0.01% |
77,867
+48,855
| +168% | +$763K |
|
1946
PBF Energy
PBF
$7.29B
| $1.03M | ﹤0.01% |
21,629
+6,673
| +45% | +$250K |
|
1947
America Movil
AMX
$78.1B
| $1.03M | ﹤0.01% |
40,431
+2,432
| +6% | +$55.5K |
|
1948
Golub Capital BDC
GBDC
$3.33B
| $1.03M | ﹤0.01% |
81,243
-20,052
| -20% | -$257K |
|
1949
iShares ESG Aware USD Corporate Bond ETF
SUSC
$1.29B
| $1.03M | ﹤0.01% |
44,419
+14,613
| +49% | +$342K |
|
1950
American Airlines Group
AAL
$9.58B
| $1.03M | ﹤0.01% |
95,601
-41,270
| -30% | -$547K |
|
Similar funds
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 Technology at 21% of assets, down from 23% a quarter earlier, followed by Financials and Healthcare.
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.