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Prospect Hill Management, LLC

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13F filer, CIK 1837320, SHORT HILLS, NJ

Prospect Hill Management, LLC reported $257,489,064 across 14 holdings for the quarter ended 2026-06-30, in a 13F-HR filed 2026-08-06. Its ten largest share positions make up 98.26% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001837320-26-000003

Period
2026-06-30
Reported value
$257M
Holdings
14
Top 10 weight
98.26%
New
0
Sold out
0

Largest buys vs the previous quarter

SecurityShares changeApprox. value
NVDAadded+30,030$6.01M
PLTRadded+5,500$642K
AAPLadded+366$106K
ISRGadded+250$99.4K
TSLAadded+170$71.5K

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-25,000-$1.42M
MAreduced-500-$257K
METAreduced-25-$14.1K

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 2026

Share positions as resolved from 13F-HR 0001837320-26-000003, largest first. % of portfolio is the value over $257,489,064, 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; 2024Q3: 513,836 shares; 2024Q4: 512,031 shares; 2025Q1: 512,481 shares; 2025Q2: 506,986 shares; 2025Q3: 507,076 shares; 2025Q4: 505,976 shares; 2026Q1: 505,476 shares; 2026Q2: 505,842 shares 505,842$146M56.85%+366Timeline
TSLATESLA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 99,062 shares; 2024Q4: 99,022 shares; 2025Q1: 100,291 shares; 2025Q2: 100,317 shares; 2025Q3: 100,417 shares; 2025Q4: 100,452 shares; 2026Q1: 100,616 shares; 2026Q2: 100,786 shares 100,786$42.4M16.46%+170Timeline
AMZNAMAZON COM INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 51,818 shares; 2024Q4: 51,718 shares; 2025Q1: 51,643 shares; 2025Q2: 51,143 shares; 2025Q3: 51,293 shares; 2025Q4: 52,693 shares; 2026Q1: 52,743 shares; 2026Q2: 52,793 shares 52,793$12.6M4.89%+50Timeline
NVDANVIDIA CORPORATIONQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 25,650 shares; 2024Q4: 25,650 shares; 2025Q1: 31,909 shares; 2025Q2: 31,534 shares; 2025Q3: 31,834 shares; 2025Q4: 31,834 shares; 2026Q1: 31,813 shares; 2026Q2: 61,843 shares 61,843$12.4M4.81%+30,030Timeline
GOOGALPHABET INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 30,020 shares; 2024Q4: 30,020 shares; 2025Q1: 30,020 shares; 2025Q2: 30,020 shares; 2025Q3: 30,020 shares; 2025Q4: 30,020 shares; 2026Q1: 30,020 shares; 2026Q2: 30,020 shares 30,020$10.6M4.12%0Timeline
GOOGLALPHABET INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 27,120 shares; 2024Q4: 27,120 shares; 2025Q1: 27,120 shares; 2025Q2: 27,120 shares; 2025Q3: 27,370 shares; 2025Q4: 27,370 shares; 2026Q1: 27,870 shares; 2026Q2: 28,020 shares 28,020$10M3.89%+150Timeline
ISRGINTUITIVE SURGICAL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 14,325 shares; 2024Q4: 14,325 shares; 2025Q1: 15,125 shares; 2025Q2: 15,075 shares; 2025Q3: 14,825 shares; 2025Q4: 14,450 shares; 2026Q1: 14,575 shares; 2026Q2: 14,825 shares 14,825$5.9M2.29%+250Timeline
BACBANK OF AMER CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 280,000 shares; 2024Q4: 280,000 shares; 2025Q1: 189,448 shares; 2025Q2: 117,500 shares; 2025Q3: 117,500 shares; 2025Q4: 117,500 shares; 2026Q1: 117,500 shares; 2026Q2: 92,500 shares 92,500$5.27M2.05%-25,000Timeline
NFLXNETFLIX INC.Quarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 6,181 shares; 2024Q4: 6,181 shares; 2025Q1: 6,181 shares; 2025Q2: 6,176 shares; 2025Q3: 6,191 shares; 2025Q4: 61,910 shares; 2026Q1: 62,513 shares; 2026Q2: 63,514 shares 63,514$4.53M1.76%+1,001Timeline
MAMASTERCARD INCORPORATEDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 7,400 shares; 2024Q4: 7,150 shares; 2025Q1: 7,150 shares; 2025Q2: 7,150 shares; 2025Q3: 7,150 shares; 2025Q4: 7,150 shares; 2026Q1: 6,300 shares; 2026Q2: 5,800 shares 5,800$2.98M1.16%-500Timeline
TMOTHERMO FISHER SCIENTIFIC INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 3,250 shares; 2024Q4: 3,250 shares; 2025Q1: 3,250 shares; 2025Q2: 3,250 shares; 2025Q3: 3,250 shares; 2025Q4: 3,000 shares; 2026Q1: 3,000 shares; 2026Q2: 3,000 shares 3,000$1.5M0.58%0Timeline
METAMETA PLATFORMS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 705 shares; 2024Q4: 705 shares; 2025Q1: 1,725 shares; 2025Q2: 1,725 shares; 2025Q3: 1,800 shares; 2025Q4: 2,430 shares; 2026Q1: 2,405 shares; 2026Q2: 2,380 shares 2,380$1.34M0.52%-25Timeline
PLTRPALANTIR TECHNOLOGIES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 4,450 shares; 2026Q2: 9,950 shares 9,950$1.16M0.45%+5,500Timeline
AXPAMERICAN EXPRESS COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q3: 875 shares; 2024Q4: 875 shares; 2025Q1: 2,000 shares; 2025Q2: 2,000 shares; 2025Q3: 2,000 shares; 2025Q4: 2,000 shares; 2026Q1: 1,375 shares; 2026Q2: 1,375 shares 1,375$465K0.18%0Timeline

How Q2 2026 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 0001837320-26-000003 base2026-08-06acceptance time not in the bulk data set

Filings

Every filing of this filer: 13F reports and notices, the 13D and 13G it filed or is a reporting person of, and Forms 3, 4 and 5 it reported as an owner.

FilingSubjectFiledAcceptedIngested
13F-HR 0001837320-26-000003 Quarter ended 2026-06-302026-08-06acceptance time not in the bulk data set
13F-HR 0001837320-26-000002 Quarter ended 2026-03-312026-05-06acceptance time not in the bulk data set
13F-HR 0001837320-26-000001 Quarter ended 2025-12-312026-01-29acceptance time not in the bulk data set
13F-HR 0001837320-25-000009 Quarter ended 2025-09-302025-11-07acceptance time not in the bulk data set
13F-HR 0001837320-25-000008 Quarter ended 2025-06-302025-08-11acceptance time not in the bulk data set
13F-HR 0001837320-25-000007 Quarter ended 2025-03-312025-05-05acceptance time not in the bulk data set
13F-HR 0001837320-25-000001 Quarter ended 2024-12-312025-02-11acceptance time not in the bulk data set
13F-HR 0001837320-24-000004 Quarter ended 2024-09-302024-11-05acceptance time not in the bulk data set
13F-HR 0001837320-24-000003 Quarter ended 2024-06-302024-08-02acceptance time not in the bulk data set
13F-HR 0001837320-24-000002 Quarter ended 2024-03-312024-05-08acceptance time not in the bulk data set
13F-HR 0001837320-24-000001 Quarter ended 2023-12-312024-02-08acceptance time not in the bulk data set
13F-HR 0001837320-23-000006 Quarter ended 2023-09-302023-10-16acceptance time not in the bulk data set
13F-HR 0001837320-23-000005 Quarter ended 2023-06-302023-08-08acceptance time not in the bulk data set
13F-HR 0001837320-23-000003 Quarter ended 2023-03-312023-05-09acceptance time not in the bulk data set
13F-HR 0001837320-23-000002 Quarter ended 2022-12-312023-02-06acceptance time not in the bulk data set
13F-HR 0001837320-22-000008 Quarter ended 2022-09-302022-11-07acceptance time not in the bulk data set
13F-HR 0001837320-22-000006 Quarter ended 2022-06-302022-08-05acceptance time not in the bulk data set
13F-HR 0001837320-22-000004 Quarter ended 2022-03-312022-05-04acceptance time not in the bulk data set
13F-HR 0001837320-22-000002 Quarter ended 2021-12-312022-02-07acceptance time not in the bulk data set
13F-HR 0001837320-21-000008 Quarter ended 2021-09-302021-11-05acceptance time not in the bulk data set
13F-HR 0001837320-21-000006 Quarter ended 2021-06-302021-08-11acceptance time not in the bulk data set
13F-HR 0001837320-21-000004 Quarter ended 2021-03-312021-05-10acceptance time not in the bulk data set
13F-HR 0001837320-21-000002 Quarter ended 2020-12-312021-02-08acceptance time not in the bulk data set