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Little Harbor Advisors, LLC

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13F filer, CIK 1539639, MARBLEHEAD, MA

Little Harbor Advisors, LLC reported $168,540,000 across 7 holdings for the quarter ended 2025-06-30, in a 13F-HR filed 2025-08-14.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001539639-25-000006

Period
2025-06-30
Reported value
$169M
Holdings
7
Top 10 weight
100%
New
2
Sold out
2

Largest buys vs the previous quarter

SecurityShares changeApprox. value
SPHYnew+252,500$6.01M
USHYnew+159,100$5.97M
QQQadded+804$443K

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
BKLNexited-345,705-$7.16M
SHYGexited-158,896-$6.76M
SPYreduced-6,183-$3.82M
SJNKreduced-53,193-$1.36M
SRLNreduced-30,000-$1.25M

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, Q2 2025

Share positions as resolved from 13F-HR 0001539639-25-000006, largest first. % of portfolio is the value over $168,540,000, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
SPYSTATE STR SPDR S&P 500 ETF TQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 205,493 shares; 2024Q4: 208,061 shares; 2025Q1: 206,852 shares; 2025Q2: 200,669 shares 200,669$124M73.56%-6,183Timeline
QQQINVESCO QQQ TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 18,787 shares; 2024Q4: 23,339 shares; 2025Q1: 24,143 shares; 2025Q2: 24,947 shares 24,947$13.8M8.16%+804Timeline
FTSLFIRST TR EXCHANGE-TRADED FDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 143,155 shares; 2024Q4: 151,105 shares; 2025Q1: 151,105 shares; 2025Q2: 151,105 shares 151,105$6.93M4.11%0Timeline
SPHYSPDR SERIES TRUSTQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 252,500 shares 252,500$6.01M3.57%newTimeline
USHYISHARES TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 159,100 shares 159,100$5.97M3.54%newTimeline
SRLNSSGA ACTIVE ETF TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 164,268 shares; 2024Q4: 173,388 shares; 2025Q1: 173,388 shares; 2025Q2: 143,388 shares 143,388$5.96M3.54%-30,000Timeline
SJNKSPDR SERIES TRUSTQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 270,633 shares; 2024Q4: 285,663 shares; 2025Q1: 285,663 shares; 2025Q2: 232,470 shares 232,470$5.92M3.51%-53,193Timeline

Sold out in Q2 2025

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

SecurityShares beforeValue beforeType
BKLNINVESCO EXCH TRADED FD TR II345,705$7.16Mshares
SHYGISHARES TR158,896$6.76Mshares

How Q2 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 0001539639-25-000006 base2025-08-14acceptance time not in the bulk data set