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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
+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
(+15%)
Cap. Flow
+$3.47B
Cap. Flow
% of AUM
5.01%
Top 10 Holdings %
Top 10 Hldgs %
26.5%
Holding
3,740
New
311
Increased
1,893
Reduced
1,169
Closed
273
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$261M |
| 2 |
Microsoft
MSFT
|
+$169M |
| 3 |
GE Vernova
GEV
|
+$143M |
| 4 |
iShares Core S&P 500 ETF
IVV
|
+$107M |
| 5 |
JPMorgan Chase
JPM
|
+$90.8M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Union Pacific
UNP
|
+$83.9M |
| 2 |
Thermo Fisher Scientific
TMO
|
+$78.6M |
| 3 |
General Mills
GIS
|
+$42.3M |
| 4 |
Target
TGT
|
+$27.6M |
| 5 |
iShares 7-10 Year Treasury Bond ETF
IEF
|
+$23.7M |
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 | |
|---|---|---|---|---|---|---|
|
HUYA
3351
Huya Inc
HUYA
$542M
| $46.3K | ﹤0.01% |
13,143
-193
| -1% | -$700 |
|
|
MAPS
3352
DELISTED
WM TECHNOLOGY INC A
MAPS
| $46.2K | ﹤0.01% |
51,515
-1,796
| -3% | -$1.94K |
|
|
AGEN
3353
Agenus
AGEN
$249M
| $46.1K | ﹤0.01% |
+10,095
| New | +$35K |
|
3354
SES AI
SES
$186M
| $45.5K | ﹤0.01% |
51,273
-64,867
| -56% | -$54.4K |
|
|
AUTL
3355
Autolus Therapeutics
AUTL
$386M
| $43.2K | ﹤0.01% |
+18,947
| New | +$31.3K |
|
|
CSAI
3356
Cloudastructure
CSAI
$6.1M
| $42.3K | ﹤0.01% |
19,134
+300
| +2% | +$1.04K |
|
3357
Acco Brands
ACCO
$369M
| $40.9K | ﹤0.01% |
+11,428
| New | +$42.3K |
|
3358
Accuray
ARAY
$28.4M
| $40.6K | ﹤0.01% |
+29,665
| New | +$43.9K |
|
|
EB
3359
DELISTED
Eventbrite
EB
| $40.2K | ﹤0.01% |
+15,275
| New | +$35.2K |
|
|
SLI
3360
Standard Lithium
SLI
$517M
| $39.4K | ﹤0.01% |
20,117
-5,750
| -22% | -$9.05K |
|
3361
ProQR Therapeutics
PRQR
$243M
| $39.2K | ﹤0.01% |
19,219
+885
| +5% | +$1.44K |
|
|
NB
3362
NioCorp Developments
NB
$603M
| $38.4K | ﹤0.01% |
16,488
+150
| +0.9% | +$374 |
|
3363
Acacia Research
ACTG
$450M
| $37K | ﹤0.01% |
10,344
-20,817
| -67% | -$71.7K |
|
|
TDAY
3364
USA Today Co
TDAY
$1.23B
| $36.3K | ﹤0.01% |
+10,147
| New | +$34K |
|
|
LAC
3365
Lithium Americas
LAC
$986M
| $35.9K | ﹤0.01% |
13,379
+630
| +5% | +$1.75K |
|
|
GCTS
3366
GCT Semiconductor Holding
GCTS
$177M
| $35.3K | ﹤0.01% |
+23,682
| New | +$32K |
|
|
BLDP
3367
Ballard Power Systems
BLDP
$874M
| $34.1K | ﹤0.01% |
21,445
+7,212
| +51% | +$9.64K |
|
|
DHF
3368
BNY Mellon High Yield Strategies Fund
DHF
$171M
| $34.1K | ﹤0.01% |
13,109
+38
| +0.3% | +$94 |
|
3369
Standard BioTools
LAB
$326M
| $33.8K | ﹤0.01% |
28,191
-45,954
| -62% | -$50.9K |
|
3370
Ring Energy
REI
$322M
| $33.2K | ﹤0.01% |
41,868
+2,337
| +6% | +$1.98K |
|
3371
Telos
TLS
$337M
| $33K | ﹤0.01% |
10,401
-1,694
| -14% | -$4.4K |
|
|
BRY
3372
DELISTED
Berry Corp
BRY
| $32.9K | ﹤0.01% |
+11,883
| New | +$31.8K |
|
|
SGMO
3373
DELISTED
SANGAMO THERAPEUTICS INC
SGMO
| $32.9K | ﹤0.01% |
+60,782
| New | +$36.1K |
|
|
NXDR
3374
Nextdoor Holdings
NXDR
$835M
| $32.7K | ﹤0.01% |
+19,699
| New | +$29.7K |
|
3375
Opko Health
OPK
$921M
| $31.8K | ﹤0.01% |
24,092
+6,629
| +38% | +$9.06K |
|
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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.