Mariner Investment Group LLC: 13F holdings, Q2 2026
Hedge fund · SEC EDGAR filings (CIK 1096978) · Explore on the interactive board
Mariner Investment Group LLC disclosed 75 US equity positions worth $426.3m in its Q2 2026 13F filing (holdings as of June 30, 2026, filed July 27, 2026). Its largest position is IBIT at 24.4% of the reported book, followed by SPY, ALIBABA GROUP HLDG LTD. The top ten holdings are 76.2% of the book, and the portfolio behaves like about 10 equal-weight positions. Versus the prior filing it opened 29 new positions, added to 15, reduced 4 and exited 7. Note: this manager's most recent filing is 3934 quarters behind the newest quarter on file, so these figures are history rather than current positioning.
What does Mariner Investment Group LLC own? Top holdings as of June 30, 2026
Change is measured in shares against the previous filing (Q1 2026), so price moves do not read as decisions. This quarter: 29 new, 15 added, 4 reduced, 7 exited.
| # | Stock | Sector | Weight | Value | Shares | Δ shares | Action |
|---|---|---|---|---|---|---|---|
| 1 | IBIT ISHARES BITCOIN TRUST ETF | 24.4% | $104.2m | 3,129,352 | 0% | held | |
| 2 | SPY STATE STR SPDR S&P 500 ETF T | 13.4% | $57.1m | 76,475 | – | new | |
| 3 | ALIBABA GROUP HLDG LTD | 8.3% | $35.4m | 30,000,000 | 20% | added | |
| 4 | FLR FLUOR CORP | 7.8% | $33.3m | 25,100,000 | 0% | held | |
| 5 | DASH DOORDASH INC | Consumer Cyclical | 5.8% | $24.7m | 25,000,000 | – | new |
| 6 | GLOBAL PMTS INC | 5.3% | $22.5m | 25,000,000 | 0% | held | |
| 7 | RIVIAN AUTOMOTIVE INC | 3.8% | $16.0m | 15,000,000 | – | new | |
| 8 | RITM RITHM CAPITAL CORP | Real Estate | 2.9% | $12.5m | 1,332,583 | 0% | held |
| 9 | AKAMAI TECHNOLOGIES INC | 2.6% | $11.0m | 7,500,000 | – | new | |
| 10 | SHY ISHARES TR | 1.9% | $8.3m | 101,199 | 33% | added | |
| 11 | LIVE NATION ENTERTAINMENT IN | 1.4% | $6.0m | 5,000,000 | 0% | held | |
| 12 | CIM CHIMERA INVT CORP | 1.2% | $5.1m | 378,899 | 0% | held | |
| 13 | MUB ISHARES TR | 1.1% | $4.9m | 45,454 | – | new | |
| 14 | ETR ENTERGY CORP NEW | Utilities | 1.1% | $4.6m | 40,000 | 0% | held |
| 15 | VCSH VANGUARD SCOTTSDALE FDS | 1.0% | $4.2m | 53,317 | 2% | added | |
| 16 | LECO LINCOLN ELEC HLDGS INC | Industrials | 1.0% | $4.2m | 15,705 | 162% | added |
| 17 | WMB WILLIAMS COS INC | Energy | 1.0% | $4.1m | 55,000 | 22% | added |
| 18 | GLW CORNING INC | Technology | 0.8% | $3.6m | 14,000 | – | new |
| 19 | SHIFT4 PMTS INC | 0.8% | $3.4m | 55,000 | – | new | |
| 20 | MTZ MASTEC INC | Industrials | 0.8% | $3.3m | 8,000 | 33% | added |
| 21 | GRUPO AEROMEXICO SAB DE CV | 0.7% | $3.0m | 169,280 | 0% | held | |
| 22 | FERG FERGUSON ENTERPRISES INC | Industrials | 0.7% | $2.8m | 12,000 | – | new |
| 23 | EWZ ISHARES INC | 0.6% | $2.8m | 80,000 | – | new | |
| 24 | RWT REDWOOD TRUST INC | Real Estate | 0.6% | $2.6m | 550,361 | 0% | held |
| 25 | FOUR SHIFT4 PMTS INC | Technology | 0.6% | $2.4m | 50,000 | -66% | reduced |
| 26 | IEI ISHARES TR | 0.6% | $2.4m | 20,551 | 169% | added | |
| 27 | IEF ISHARES TR | 0.5% | $2.1m | 22,596 | – | new | |
| 28 | PENNYMAC CORP | 0.5% | $2.0m | 2,000,000 | 100% | added | |
| 29 | MFA MFA FINL INC | Real Estate | 0.5% | $2.0m | 210,000 | 0% | held |
| 30 | PMT PENNYMAC MTG INVT TR | Real Estate | 0.5% | $2.0m | 180,000 | 0% | held |
| 31 | HYG ISHARES TR | 0.5% | $2.0m | 24,600 | – | new | |
| 32 | REDWOOD TRUST INC | 0.4% | $1.8m | 1,800,000 | 0% | held | |
| 33 | TOL TOLL BROTHERS INC | Consumer Cyclical | 0.4% | $1.6m | 10,000 | – | new |
| 34 | REDFIN CORP | 0.4% | $1.6m | 1,645,000 | 0% | held | |
| 35 | BHF BRIGHTHOUSE FINL INC | Financial Services | 0.4% | $1.6m | 25,000 | – | new |
| 36 | TLT ISHARES TR | 0.4% | $1.6m | 18,080 | – | new | |
| 37 | FIX COMFORT SYS USA INC | Industrials | 0.3% | $1.5m | 750 | – | new |
| 38 | IREN IREN LIMITED | Financial Services | 0.3% | $1.4m | 30,000 | – | new |
| 39 | LUMN LUMEN TECHNOLOGIES INC | Communication Services | 0.3% | $1.3m | 175,000 | 133% | added |
| 40 | DX DYNEX CAP INC | Real Estate | 0.3% | $1.2m | 95,000 | 0% | held |
| 41 | GEV GE VERNOVA INC | Industrials | 0.3% | $1.2m | 1,000 | – | new |
| 42 | IGV ISHARES TR | 0.3% | $1.1m | 12,500 | 0% | held | |
| 43 | RRC RANGE RES CORP | Energy | 0.3% | $1.1m | 30,000 | 0% | held |
| 44 | EQT EQT CORP | Energy | 0.2% | $1.1m | 20,000 | 0% | held |
| 45 | SABR SABRE CORP | Technology | 0.2% | $836.0k | 400,000 | – | new |
| 46 | WMT WALMART INC | Consumer Defensive | 0.2% | $822.7k | 7,264 | 0% | held |
| 47 | WIX WIX COM LTD | Technology | 0.2% | $777.8k | 17,144 | 90% | added |
| 48 | KRMN KARMAN HLDGS INC | Industrials | 0.2% | $748.8k | 15,000 | 200% | added |
| 49 | Q QNITY ELECTRONICS INC | Technology | 0.2% | $653.2k | 4,000 | – | new |
| 50 | CORZ CORE SCIENTIFIC INC NEW | Technology | 0.2% | $639.8k | 25,000 | 25% | added |
What did Mariner Investment Group LLC sell? Positions exited since the previous filing
| Stock | Prior weight | Prior value |
|---|---|---|
| SNOW SNOWFLAKE INC | 62.8% | $17.7m |
| LIVE NATION ENTERTAINMENT IN | 26.9% | $7.6m |
| LGN LEGENCE CORP | 3.0% | $846.9k |
| MCHP MICROCHIP TECHNOLOGY INC. | 3.0% | $839.9k |
| MTSI MACOM TECH SOLUTIONS HLDGS I | 2.4% | $666.2k |
| WOLF WOLFSPEED INC | 1.4% | $387.9k |
| WING WINGSTOP INC | 0.5% | $155.0k |
Sector mix
| Sector | Weight |
|---|---|
| Consumer Cyclical | 6.5% |
| Real Estate | 4.8% |
| Industrials | 3.2% |
| Technology | 3.0% |
| Energy | 1.5% |
| Utilities | 1.2% |
Sectors cover positions whose ticker resolved to a sector; the remainder is unclassified, not cash.
Filing history
How concentrated is Mariner Investment Group LLC's portfolio?
Across every quarter Mariner Investment Group LLC has filed, its median largest position is 30.4% of the book and its median top-ten weight is 79.2%, which WhaleCreep classifies as concentrated (the gate is a median largest position of 5%). Of 8.0 completed holding spells, the median lasted 1.0 quarters; 75.0 positions are still open and their final length is unknown.