Skip to content

Boundary Creek Advisors LP

Follow

13F filer, CIK 1771944, TUCKAHOE, NY

Boundary Creek Advisors LP reported $375,826,623 across 20 holdings for the quarter ended 2025-03-31, in a 13F-HR filed 2025-05-16. Its ten largest share positions make up 97.27% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001771944-25-000003

Period
2025-03-31
Reported value
$376M
Holdings
20
Top 10 weight
97.27%
New
4
Sold out
16

Largest buys vs the previous quarter

SecurityShares changeApprox. value
EUnew+2,171,497$2.9M
VSTadded+20,000$2.35M
SLSRadded+227,279$765K
UISadded+158,939$730K

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
VLOreduced-50,000-$6.6M
CEGreduced-32,500-$6.55M
AMBPexited-1,709,635-$5.15M
KNXreduced-78,885-$3.43M
LEUreduced-45,032-$2.8M

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 0001771944-25-000003, largest first. % of portfolio is the value over $113,671,479, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
SLSRSOLARIS RES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 7,225,500 shares; 2024Q4: 7,185,900 shares; 2025Q1: 7,413,179 shares 7,413,179$25M21.95%+227,279Timeline
MERCMERCER INTL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 4,289,752 shares; 2024Q4: 4,236,054 shares; 2025Q1: 3,981,773 shares 3,981,773$24.5M21.54%-254,281Timeline
KNXKNIGHT-SWIFT TRANSN HLDGS INQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 263,435 shares; 2024Q4: 437,664 shares; 2025Q1: 358,779 shares 358,779$15.6M13.73%-78,885Timeline
MATVMATIV HOLDINGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 2,343,340 shares; 2024Q4: 2,321,405 shares; 2025Q1: 1,945,289 shares 1,945,289$12.1M10.66%-376,116Timeline
LEUCENTRUS ENERGY CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 327,095 shares; 2024Q4: 218,818 shares; 2025Q1: 173,786 shares 173,786$10.8M9.51%-45,032Timeline
CEGCONSTELLATION ENERGY 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: 60,000 shares; 2025Q1: 27,500 shares 27,500$5.54M4.88%-32,500Timeline
VLOVALERO ENERGY 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: 90,000 shares; 2025Q1: 40,000 shares 40,000$5.28M4.65%-50,000Timeline
VSTVISTRA 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: 20,000 shares; 2025Q1: 40,000 shares 40,000$4.7M4.13%+20,000Timeline
UISUNISYS CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,520,087 shares; 2024Q4: 510,321 shares; 2025Q1: 669,260 shares 669,260$3.07M2.7%+158,939Timeline
EUENCORE ENERGY 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: not reported; 2025Q1: 2,171,497 shares 2,171,497$2.9M2.55%newTimeline
URBAN ONE INCURBAN ONE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,390,483 shares; 2024Q4: 863,826 shares; 2025Q1: 276,962 shares 276,962$199K0.18%-586,864
VEEAWVEEA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 28,083 shares; 2024Q4: 28,083 shares; 2025Q1: 28,083 shares 28,083$2.31K<0.01%0Timeline

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
MPTMEDICAL PROPERTIES TRUST INC REITput22,704,900$137M+5,092,900
KNXKNIGHT-SWIFT TRANSN HLDGS IN CL Acall1,000,000$43.5M-61,300
EFAISHARES TR MSCI EAFE ETFput500,000$40.9Mnew
VLOVALERO ENERGY CORP Stockcall200,000$26.4Mnew
DXCDXC TECHNOLOGY CO Stockcall500,000$8.53Mnew
MATVMATIV HOLDINGS INC COMcall875,000$5.45M-962,500
SLSRSOLARIS RES INC COM NEWcall147,300$499K-352,700

Principal amounts

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

SecurityTypeAmountValueChange
WOLFSPEED INCWOLFSPEED INC NOTE 1.875%12/0principal17,500,000$4M+3,000,000

Sold out in Q1 2025

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

SecurityShares beforeValue beforeType
HYGISHARES TR4,500,000$354Mput
SPYSTATE STR SPDR S&P 500 ETF T600,000$352Mput
IWMISHARES TR1,000,000$221Mput
XLISELECT SECTOR SPDR TR1,000,000$132Mput
GLGLOBE LIFE INC572,900$63.9Mput
CCLCARNIVAL CORP1,000,000$24.9Mput
VSTVISTRA CORP150,000$20.7Mcall
ABRARBOR REALTY TRUST INC1,124,300$15.6Mput
OPTUOPTIMUM COMMUNICATIONS INC5,405,500$13Mcall
CRKCOMSTOCK RES INC500,000$9.11Mput
AALAMERICAN AIRLINES GROUP INC500,000$8.71Mput
DANDANA INC532,500$6.16Mcall
AMBPARDAGH METAL PACKAGING S A1,709,635$5.15Mshares
JBLUJETBLUE AIRWAYS CORP500,000$3.93Mput
MERCMERCER INTL INC558,400$3.63Mcall
UISUNISYS CORP50,000$316Kcall

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 0001771944-25-000003 base2025-05-16acceptance time not in the bulk data set