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Diameter Capital Partners LP

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13F filer, CIK 1727012, New York, NY

Diameter Capital Partners LP reported $857,657,686 across 23 holdings for the quarter ended 2025-03-31, in a 13F-HR filed 2025-05-15. Its ten largest share positions make up 87.01% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001172661-25-001976

Period
2025-03-31
Reported value
$858M
Holdings
23
Top 10 weight
87.01%
New
6
Sold out
12

Largest buys vs the previous quarter

SecurityShares changeApprox. value
ECHOadded+999,000$25.6M
MCYnew+350,000$19.6M
VISNnew+2,702,363$14.3M
ATIadded+140,000$7.28M
NVRIadded+635,427$4.23M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
BAPRAexited-1,000,000-$60.9M
CORZexited-2,265,000-$31.8M
VEONreduced-463,279-$20.2M
TACexited-1,250,000-$17.7M
PRIMexited-200,000-$15.3M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q1 2025

Share positions as resolved from 13F-HR 0001172661-25-001976, largest first. % of portfolio is the value over $420,330,743, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
ECHOECHOSTAR CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 805,970 shares; 2024Q4: 5,026,823 shares; 2025Q1: 6,025,823 shares 6,025,823$154M36.67%+999,000Timeline
SILASILA REALTY TRUST INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,899,130 shares; 2024Q4: 1,449,208 shares; 2025Q1: 1,347,765 shares 1,347,765$36M8.56%-101,443Timeline
NBISNEBIUS GROUP N.V.Quarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 1,190,476 shares; 2025Q1: 1,190,476 shares 1,190,476$25.1M5.98%0Timeline
OPTUOPTIMUM COMMUNICATIONS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 11,025,187 shares; 2024Q4: 9,173,516 shares; 2025Q1: 8,137,239 shares 8,137,239$21.6M5.15%-1,036,277Timeline
WBDWARNER BROS DISCOVERY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,250,000 shares; 2024Q4: 1,900,000 shares; 2025Q1: 1,855,000 shares 1,855,000$19.9M4.74%-45,000Timeline
MCYMERCURY GENL CORP NEWQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 350,000 shares 350,000$19.6M4.65%newTimeline
TDSTELEPHONE & DATA SYS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 253,199 shares; 2024Q4: 450,000 shares; 2025Q1: 486,924 shares 486,924$18.9M4.49%+36,924Timeline
VISNVISTANCE NETWORKS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 125,000 shares; 2024Q4: not reported; 2025Q1: 2,702,363 shares 2,702,363$14.3M3.41%newTimeline
ATIATI INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 130,000 shares; 2025Q1: 270,000 shares 270,000$14M3.34%+140,000Timeline
AMBPARDAGH METAL PACKAGING S AQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 3,974,121 shares; 2024Q4: 4,374,121 shares; 2025Q1: 4,624,121 shares 4,624,121$14M3.32%+250,000Timeline
CCOCLEAR CHANNEL OUTDOOR HLDGSQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 437,307 shares; 2024Q4: 10,104,095 shares; 2025Q1: 8,923,403 shares 8,923,403$9.9M2.36%-1,180,692Timeline
NVRIENVIRI CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 500,000 shares; 2025Q1: 1,135,427 shares 1,135,427$7.55M1.8%+635,427Timeline
VEONVEON LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 627,465 shares; 2025Q1: 164,186 shares 164,186$7.16M1.7%-463,279Timeline
NESRNATIONAL ENERGY SERVICES REUQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 908,693 shares; 2025Q1: 843,506 shares 843,506$6.21M1.48%-65,187Timeline
BLCOBAUSCH PLUS LOMB CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,100,000 shares; 2024Q4: 701,414 shares; 2025Q1: 265,165 shares 265,165$3.84M0.91%-436,249Timeline
PRIVSSGA ACTIVE TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 63,800 shares 63,800$1.6M0.38%newTimeline

Options

Puts and calls, as filed. The amount and value describe the underlying shares, not the option premium, so they stay out of % of portfolio (H5).

SecurityTypeAmountValueChange
IWMISHARES TR SHSput1,000,000$199Mnew
BKLNINVESCO EXCH TRADED FD TR II SR LN ETFput7,000,000$145Mnew
WBDWARNER BROS DISCOVERY INC Stockcall8,000,000$85.8M+5,000,000
BHCBAUSCH HEALTH COS INC Stockcall1,096,900$7.1Mnew

Principal amounts

Notes and convertibles filed as a face amount (PRN). A face amount is never added to a share count (H6).

SecurityTypeAmountValueChange
ANYWHERE REAL ESTATE GROUP LANYWHERE REAL ESTATE GROUP L CNVprincipal44,865,000$42.1M0
LIBERTY INTERACTIVE LLCLIBERTY INTERACTIVE LLC DEB 3.750% 2/1principal11,400,000$3.22M+791,290
LIBERTY INTERACTIVE LLCLIBERTY INTERACTIVE LLC DEB 4.000%11/1principal4,000,000$1.16M+390,178

Sold out in Q1 2025

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
BAPRABOEING CO1,000,000$60.9Mshares
UNHUNITEDHEALTH GROUP INC120,000$60.7Mcall
HUMHUMANA INC132,500$33.6Mcall
CORZCORE SCIENTIFIC INC NEW2,265,000$31.8Mshares
TACTRANSALTA CORP1,250,000$17.7Mshares
PRIMPRIMORIS SVCS CORP200,000$15.3Mshares
CABLE ONE INCCABLE ONE INC17,016,000$14.1Mprincipal
CVSCVS HEALTH CORP300,000$13.5Mcall
CTSHCOGNIZANT TECHNOLOGY SOLUTIO149,800$11.5Mput
BHCBAUSCH HEALTH COS INC992,612$8Mshares
BAHBOOZ ALLEN HAMILTON HLDG COR50,000$6.43Mshares
HUTHUT 8 CORP130,000$2.66Mshares

How Q1 2025 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0001172661-25-001976 base2025-05-15acceptance time not in the bulk data set