Managers / Q1 2026
Prospect Hill Management, LLC
CIK 0001837320 · 51 JFK PARKWAY, 1ST FLOOR WEST, SHORT HILLS, NJ, 07078 · 908-277-0159
Summary
Prospect Hill Management, LLC reported $224M in U.S.-listed holdings across 14 positions for Q1 2026.
The portfolio is heavily concentrated: AAPL alone accounts for 57.2% of reported value.
Compared with Q4 2025, the fund opened 1 new position and exited 0.
Portfolio Metrics
Methodology: turnover is min(value bought, value sold) ÷ average reported value across the two quarters — value-based, so market moves inflate it slightly versus a share-based measure. Concentration and largest position are shares of the filing’s total reported value, options excluded. New/exited counts compare against the prior filed quarter. All figures derive solely from the fund’s 13F filings.
Reported Value by Quarter
Portfolio Composition
- Common Stock · 100.0% · $224M
Quarter-over-Quarter Changes full breakdown →
vs Q4 2025 (amended baseline)
| Issuer | Move | Share Δ | Shares now | Value Δ | Value now |
|---|---|---|---|---|---|
| PLTRPALANTIR TECHNOLOGIES | NEW | +4.5K | 4.5K | +$650,946 | $650,946 |
| AXPAMERICAN EXPRESS | TRIMMED | −625 | 1.4K | −$323,990 | $415,910 |
| MAMASTERCARD INCORPORATED | TRIMMED | −850 | 6.3K | −$933,934 | $3M |
| GOOGLALPHABET INC | HELD | +500 | 27.9K | −$552,513 | $8M |
| METAMETA PLATFORMS INC | HELD | −25 | 2.4K | −$228,046 | $1M |
| NFLXNETFLIX INC | HELD | +603 | 62.5K | +$205,943 | $6M |
| ISRGINTUITIVE SURGICAL INC | HELD | +125 | 14.6K | −$1M | $7M |
| TSLATESLA INC | HELD | +164 | 100.6K | −$8M | $37M |
Value changes conflate price moves with buying and selling — share changes are the real signal. Share counts are not split-adjusted.
Holdings — Q1 2026
| # | Issuer | Class | % Portfolio | Value ↓ | Shares |
|---|---|---|---|---|---|
| 1 | AAPLAPPLE INChistory → | COM | 57.18% | $128M | 505.5K |
| 2 | TSLATESLA INChistory → | COM | 16.67% | $37M | 100.6K |
| 3 | GOOGALPHABET INC | CAP STK CL C · CAP STK CL A | 7.41% | $17M | 57.9K |
| 4 | AMZNAMAZON COM INChistory → | COM | 4.90% | $11M | 52.7K |
| 5 | ISRGINTUITIVE SURGICAL INChistory → | COM NEW | 2.99% | $7M | 14.6K |
| 6 | NFLXNETFLIX INChistory → | COM | 2.68% | $6M | 62.5K |
| 7 | BACBANK OF AMERICA CORPhistory → | COM | 2.55% | $6M | 117.5K |
| 8 | NVDANVIDIA CORPORATIONhistory → | COM | 2.47% | $6M | 31.8K |
| 9 | MAMASTERCARD INCORPORATEDhistory → | CL A | 1.40% | $3M | 6.3K |
| 10 | TMOTHERMO FISHER SCIENTIFIC INC | COM | 0.66% | $1M | 3.0K |
| 11 | METAMETA PLATFORMS INC | CL A | 0.61% | $1M | 2.4K |
| 12 | PLTRPALANTIR TECHNOLOGIES | CL A | 0.29% | $650,946 | 4.5K |
| 13 | AXPAMERICAN EXPRESS | COM | 0.19% | $415,910 | 1.4K |
Filing History
| Quarter | Reported Value | Positions | Filed | Type | Links |
|---|---|---|---|---|---|
| Q1 2026 | $224M | 14 | May 6, 2026 | 13F-HR | changes · EDGAR ↗ |
| Q4 2025 | $247M | 13 | Jan 29, 2026 | 13F-HR | changes · EDGAR ↗ |
| Q3 2025 | $234M | 14 | Nov 7, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q2 2025 | $194M | 15 | Aug 11, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q1 2025 | $192M | 15 | May 5, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q4 2024 | $227M | 16 | Feb 11, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q3 2024 | $199M | 16 | Nov 5, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q2 2024 | $182M | 15 | Aug 2, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q1 2024 | $155M | 15 | May 8, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q4 2023 | $168M | 15 | Feb 8, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q3 2023 | $151M | 15 | Oct 16, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q2 2023 | $165M | 15 | Aug 8, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q1 2023 | $140M | 14 | May 9, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q4 2022 | $112M | 15 | Feb 6, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q3 2022 | $129M | 15 | Nov 7, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q2 2022 | $126M | 15 | Aug 5, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q1 2022 | $170M | 16 | May 4, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q4 2021 | $173M | 14 | Feb 7, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q3 2021 | $145M | 17 | Nov 5, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q2 2021 | $138M | 17 | Aug 11, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q1 2021 | $127M | 18 | May 10, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q4 2020 | $133M | 16 | Feb 8, 2021 | 13F-HR | changes · EDGAR ↗ |
13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.