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Prospect Hill Management, LLC

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13F filer, CIK 1837320, SHORT HILLS, NJ

Prospect Hill Management, LLC reported $193,784,835 across 15 holdings for the quarter ended 2025-06-30, in a 13F-HR filed 2025-08-11. Its ten largest share positions make up 97.13% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001837320-25-000008

Period
2025-06-30
Reported value
$194M
Holdings
15
Top 10 weight
97.13%
New
0
Sold out
0

Largest buys vs the previous quarter

SecurityShares changeApprox. value
TSLAadded+26$8.26K

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
BACreduced-71,948-$3.4M
AAPLreduced-5,495-$1.13M
AMZNreduced-500-$110K
NVDAreduced-375-$59.2K
ISRGreduced-50-$27.2K

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 0001837320-25-000008, largest first. % of portfolio is the value over $193,784,835, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
AAPLAPPLE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 513,836 shares; 2024Q4: 512,031 shares; 2025Q1: 512,481 shares; 2025Q2: 506,986 shares 506,986$104M53.68%-5,495Timeline
TSLATESLA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 99,062 shares; 2024Q4: 99,022 shares; 2025Q1: 100,291 shares; 2025Q2: 100,317 shares 100,317$31.9M16.44%+26Timeline
AMZNAMAZON COM INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 51,818 shares; 2024Q4: 51,718 shares; 2025Q1: 51,643 shares; 2025Q2: 51,143 shares 51,143$11.2M5.79%-500Timeline
NFLXNETFLIX INC.Quarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 6,181 shares; 2024Q4: 6,181 shares; 2025Q1: 6,181 shares; 2025Q2: 6,176 shares 6,176$8.27M4.27%-5Timeline
ISRGINTUITIVE SURGICAL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 14,325 shares; 2024Q4: 14,325 shares; 2025Q1: 15,125 shares; 2025Q2: 15,075 shares 15,075$8.19M4.23%-50Timeline
BACBANK OF AMER CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 280,000 shares; 2024Q4: 280,000 shares; 2025Q1: 189,448 shares; 2025Q2: 117,500 shares 117,500$5.56M2.87%-71,948Timeline
GOOGALPHABET INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 30,020 shares; 2024Q4: 30,020 shares; 2025Q1: 30,020 shares; 2025Q2: 30,020 shares 30,020$5.33M2.75%0Timeline
NVDANVIDIA CORPORATIONQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 25,650 shares; 2024Q4: 25,650 shares; 2025Q1: 31,909 shares; 2025Q2: 31,534 shares 31,534$4.98M2.57%-375Timeline
GOOGLALPHABET INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 27,120 shares; 2024Q4: 27,120 shares; 2025Q1: 27,120 shares; 2025Q2: 27,120 shares 27,120$4.78M2.47%0Timeline
MAMASTERCARD INCORPORATEDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 7,400 shares; 2024Q4: 7,150 shares; 2025Q1: 7,150 shares; 2025Q2: 7,150 shares 7,150$4.02M2.07%0Timeline
NXPINXP SEMICONDUCTORS N VQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 6,135 shares; 2024Q4: 6,135 shares; 2025Q1: 6,035 shares; 2025Q2: 6,035 shares 6,035$1.32M0.68%0Timeline
TMOTHERMO FISHER SCIENTIFIC INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 3,250 shares; 2024Q4: 3,250 shares; 2025Q1: 3,250 shares; 2025Q2: 3,250 shares 3,250$1.32M0.68%0Timeline
METAMETA PLATFORMS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 705 shares; 2024Q4: 705 shares; 2025Q1: 1,725 shares; 2025Q2: 1,725 shares 1,725$1.27M0.66%0Timeline
ARMARM HOLDINGS PLCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 4,595 shares; 2024Q4: 4,601 shares; 2025Q1: 6,339 shares; 2025Q2: 6,214 shares 6,214$1.01M0.52%-125Timeline
AXPAMERICAN EXPRESS COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 875 shares; 2024Q4: 875 shares; 2025Q1: 2,000 shares; 2025Q2: 2,000 shares 2,000$638K0.33%0Timeline

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 0001837320-25-000008 base2025-08-11acceptance time not in the bulk data set