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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
+9.26%
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
$77.4B
AUM Growth
+$8.11B
(+12%)
Cap. Flow
+$3.32B
Cap. Flow
% of AUM
4.29%
Top 10 Holdings %
Top 10 Hldgs %
28.04%
Holding
3,806
New
339
Increased
1,836
Reduced
1,278
Closed
264
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
ProShares Ultra Semiconductors
USD
|
+$770M |
| 2 |
NVIDIA
NVDA
|
+$373M |
| 3 |
Meta Platforms (Facebook)
META
|
+$179M |
| 4 |
Teledyne Technologies
TDY
|
+$167M |
| 5 |
Apple
AAPL
|
+$155M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Take-Two Interactive
TTWO
|
+$189M |
| 2 |
lululemon athletica
LULU
|
+$80.3M |
| 3 |
iShares 0-1 Year Treasury Bond ETF
SHV
|
+$79.8M |
| 4 |
Arch Capital
ACGL
|
+$42.3M |
| 5 |
Advanced Micro Devices
AMD
|
+$38.4M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 22.54% |
| 2 | Financials | 7.9% |
| 3 | Consumer Discretionary | 5.38% |
| 4 | Communication Services | 4.83% |
| 5 | Healthcare | 4.73% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
3476
Alpha Tau Medical Warrant
DRTSW
$74.4M
| $32.4K | ﹤0.01% |
93,888
| – | – |
|
3477
New Fortress Energy
NFE
$101M
| $30.9K | ﹤0.01% |
+14,000
| New | +$39.8K |
|
3478
Aclaris Therapeutics
ACRS
$730M
| $30.6K | ﹤0.01% |
16,112
-4,898
| -23% | -$8.54K |
|
3479
Blink Charging
BLNK
$75.2M
| $30.6K | ﹤0.01% |
18,641
-941
| -5% | -$1.05K |
|
3480
Clean Energy Fuels
CLNE
$447M
| $29.8K | ﹤0.01% |
11,566
-97
| -0.8% | -$227 |
|
3481
TScan Therapeutics
TCRX
$51.9M
| $29.2K | ﹤0.01% |
16,031
-1,023
| -6% | -$1.81K |
|
3482
Oramed Pharmaceuticals
ORMP
$165M
| $29.1K | ﹤0.01% |
11,021
+935
| +9% | +$2.07K |
|
3483
Jasper Therapeutics
JSPR
$22.9M
| $29K | ﹤0.01% |
12,193
-13,320
| -52% | -$40.4K |
|
3484
Fate Therapeutics
FATE
$281M
| $28.9K | ﹤0.01% |
22,930
+11,393
| +99% | +$12.3K |
|
3485
Nkarta
NKTX
$162M
| $28.2K | ﹤0.01% |
13,609
+505
| +4% | +$1.04K |
|
3486
Expensify
EXFY
$166M
| $28.1K | ﹤0.01% |
15,163
+5,155
| +52% | +$10.4K |
|
|
OLPX
3487
DELISTED
Olaplex Holdings
OLPX
| $28K | ﹤0.01% |
+21,404
| New | +$30.7K |
|
3488
Telomir Pharmaceuticals
TELO
$79.1M
| $27.8K | ﹤0.01% |
+19,994
| New | +$30.2K |
|
3489
Greenland Technologies Holding
GTEC
$13.6M
| $27.2K | ﹤0.01% |
+20,596
| New | +$32K |
|
|
IAUX
3490
i-80 Gold Corp
IAUX
$1.17B
| $25.9K | ﹤0.01% |
27,084
+2,635
| +11% | +$1.92K |
|
3491
Chegg
CHGG
$108M
| $25.6K | ﹤0.01% |
16,983
-4,665
| -22% | -$6.56K |
|
3492
Standard BioTools
LAB
$326M
| $25.6K | ﹤0.01% |
19,670
-8,521
| -30% | -$11.2K |
|
3493
INmune Bio
INMB
$43.1M
| $25.5K | ﹤0.01% |
12,331
+1,452
| +13% | +$3.32K |
|
|
CAN
3494
Canaan Creative
CAN
$176M
| $25.4K | ﹤0.01% |
28,785
+7,100
| +33% | +$5.39K |
|
3495
Kopin
KOPN
$663M
| $24.3K | ﹤0.01% |
10,000
| – | – |
|
3496
Hain Celestial
HAIN
$47.8M
| $24K | ﹤0.01% |
15,203
+2,601
| +21% | +$4.43K |
|
3497
Butterfly Network
BFLY
$1.72B
| $23.2K | ﹤0.01% |
12,007
+7
| +0.1% | +$12 |
|
3498
Companhia Siderúrgica Nacional
SID
$1.43B
| $23K | ﹤0.01% |
15,311
-30,800
| -67% | -$44.4K |
|
3499
MIRA Pharmaceuticals
MIRA
$37.1M
| $22.4K | ﹤0.01% |
16,500
| – | – |
|
3500
Talphera
TLPH
$70.1M
| $22.3K | ﹤0.01% |
+25,000
| New | +$14.5K |
|
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Mariner's Q3 2025 Portfolio in Review
As of Q3 2025, Mariner held 3,806 positions worth $77.4B, up 12% from $69.3B the previous quarter. Its ten largest holdings account for 28% of the portfolio.
Mariner deployed $3.32B of net new capital in Q3 2025, opening 339 new positions and adding to 1,836 existing holdings. Its largest new stake was ProShares Ultra Semiconductors: 17,808,292 shares worth $8.97M.
By sector, the portfolio is most concentrated in Technology at 23% of assets, up from 21% a quarter earlier, followed by Financials and Consumer Discretionary.
On the sell side, the largest reduction was Take-Two Interactive, an estimated $189M trimmed.
- Mariner's largest Q3 2025 buy was ProShares Ultra Semiconductors: 17,808,292 shares worth $8.97M.
- Mariner added most to NVIDIA in Q3 2025, an estimated $373M increase.
- Mariner's biggest Q3 2025 reduction was Take-Two Interactive, cutting an estimated $189M.
- Mariner fully exited Hess in Q3 2025, selling an estimated $5.21M.
- Mariner's ten largest holdings make up 28% of its $77.4B portfolio in Q3 2025.
- Mariner opened 339 new positions and closed 264 in Q3 2025.
- Mariner's portfolio value rose 12% quarter-over-quarter to $77.4B.
Based on Mariner's 13F filing for Q3 2025, filed 14 Nov 2025.