13F Filings/MARINER INVESTMENT GROUP LLC

MARINER INVESTMENT GROUP LLC

Hedge FundCIK0001096978LocationNEW YORK, NY 10171, United States

Long U.S. equity positions disclosed to the SEC on Form 13F-HR.

Latest filingQ2 2026Quarter ended30 Jun 2026Filed27 Jul 2026
Firm profile · Form ADV
SEC adviser registration

Mariner Investment Group LLC isSummarised from the firm’s Form ADV Part 2A brochure.

CRD
124744 · 801-62016
Portfolio Turnover
44%
Of book traded, QoQ
Positions
124
Long U.S. equities
Top 10 Concentration
73%
Of reported value
QoQ Change
$117.2M
Value change
Assets under management
Form ADV RAUM · client mix · 13F over time
Regulatory AUM
$149.6B
Form ADV, as of Mar 2026
● 100% discretionary ($149.6B)
By client type
Pooled investment vehicles: $125.9B (84.1%) · 34 clients
Pooled investment vehicles
$125.9B · 84%
Sovereign wealth funds: $18.5B (12.4%) · 0 clients
Sovereign wealth funds
$18.5B · 12%
Investment companies: $3.2B (2.1%) · 2 clientsPension & profit-sharing plans: $2.1B (1.4%) · 0 clients
13F AUM over time
$463M
Q2 ’26 · 13F AUM
▲ 28%
40 quarters
Reported Holdings
Q2 2026 · upgrade to Pro for past quarters
↗
★ Position spotlightIBITISHARES BITCOIN TRUST ETF · 22.5% of bookThis highlighted stock and its 1Y chart are public
Loading position history…
Security⇅Shares⇅Market Value▼Est. Cost⇅Last Px⇅Est. Return⇅% Portfolio⇅Δ Shares⇅Action⇅
ISHARES BITCOIN TRUST ETF
IBIT
3.13MSH$104.2M~$33.29$46.71▲40.3%22.5%—Unchanged
STATE STR SPDR S&P 500 ETF T
SPY
76KSH$57.1M~$746.77$769.05▲3.0%12.3%▼ 89.9%Reduced
ALIBABA GROUP HLDG LTD
30.00MPRN$35.4M———7.7%▲ 20.0%Added
FLUOR CORP
25.10MPRN$33.3M———7.2%—Unchanged
DOORDASH INC
25.00MPRN$24.7M———5.3%NewNew
GLOBAL PMTS INC
25.00MPRN$22.5M———4.9%—Unchanged
INVESCO QQQ TR
QQQ
1.40MCall$19.5M—$717.63—4.2%NewNew
RIVIAN AUTOMOTIVE INC
15.00MPRN$16.0M———3.5%NewNew
RITHM CAPITAL CORP
RITM· Financials
1.33MSH$12.5M~$9.39$8.64▼8.0%2.7%—Unchanged
AKAMAI TECHNOLOGIES INC
7.50MPRN$11.0M———2.4%NewNew
IBITISHARES BITCOIN TRUST ETFUnchanged
$104.2M· 22.5%· 3.13M SH· —· cost $33.29· last $46.71· ▲40.3%
SHS BEN INT · DFND
SPYSTATE STR SPDR S&P 500 ETF TReduced
$57.1M· 12.3%· 76K SH· ▼ 89.9%· cost $746.77· last $769.05· ▲3.0%
TR UNIT · DFND
ALIBABA GROUP HLDG LTDAdded
$35.4M· 7.7%· 30.00M PRN· ▲ 20.0%
NOTE 0.500% 6/0 · DFND
FLUOR CORPUnchanged
$33.3M· 7.2%· 25.10M PRN· —
NOTE 1.125% 8/1 · DFND
DOORDASH INCNew
$24.7M· 5.3%· 25.00M PRN· New
NOTE 5/1 · DFND
GLOBAL PMTS INCUnchanged
$22.5M· 4.9%· 25.00M PRN· —
NOTE 1.500% 3/0 · DFND
QQQINVESCO QQQ TRNew
$19.5M· 4.2%· 1.40M Call· New· last $717.63
UNIT SER 1 · DFND
RIVIAN AUTOMOTIVE INCNew
$16.0M· 3.5%· 15.00M PRN· New
NOTE 3.625%10/1 · DFND
RITMRITHM CAPITAL CORPUnchanged
$12.5M· 2.7%· 1.33M SH· —· cost $9.39· last $8.64· ▼8.0%
Financials · COM NEW · DFND
AKAMAI TECHNOLOGIES INCNew
$11.0M· 2.4%· 7.50M PRN· New
NOTE 0.250% 5/1 · DFND
1–10 of 124
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Sector Breakdown
Q2 2026
Unclassified81.7% · $378.3M
Financials6.4% · $29.8M
Industrials3.9% · $18.2M
Information Technology3.2% · $14.7M
Utilities1.5% · $7.1M
Energy1.4% · $6.3M
Materials0.7% · $3.1M
Other1.2% · $5.5M
← All 13F filings