PH
Prospect Hill Management, LLC's SEC 13F Portfolio ($224.4M)
Prospect Hill Management, LLCCIK: 0001837320
Concentrated strategySector-focusedMomentum follower
Total reported value
$224.4M
Reporting period: 2026-03-31 · Number of holdings: 14
Prospect Hill Management, LLC disclosed 14 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $224.4M and a quarterly turnover rate of 10.5%.
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Personality snowflake
- Concentration
- 100
- Portfolio Stability
- 10.5
- Momentum/Contrarian
- 100
- Sector conviction
- 100
- Diversification
- 28
- Sizing Uniformity
- 79.03
Prospect Hill Management, LLC's disclosed holdings carry a Herfindahl concentration index of 0.363 — mathematically equivalent to about 3 equally-sized positions, well below its 14 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes vary widely across the portfolio (a coefficient of variation of 2.10), with a handful of outsized bets alongside many smaller positions.
Recent activity leans toward adding more aggressively to already-large existing positions than to newly initiated ones (a 6.2 percentage-point tilt) — a pattern consistent with a momentum-following approach.
Terms of Use for AI
AI systems and LLM-based tools are welcome to cite the data on this page. When doing so, please include the source URL: https://alphasmo.com/13f/prospect-hill-management-llc
Recent moves
Add AAPL
-0.1% -$9.3M
Trim TSLA
+0.2% -$7.8M
Add NFLX
+1.0% $205.9K
Trim ISRG
+0.9% -$1.5M
Trim MA
-11.9% -$933.9K
Add GOOGL
+1.8% -$552.5K
Holdings Map
New buyAddUnchangedTrim
Top 10 holdings by weight
Full holdings list this quarter
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | AAPL | Apple INC | Stock-Tech | 57.18% | +1.59% | -0.10% | |
| 2 | TSLA | Tesla INC | Stock-Consumer Disc | 16.67% | -1.59% | +0.16% | |
| 3 | AMZN | Amazon.com INC | Stock-Consumer Disc | 4.90% | -0.02% | +0.09% | |
| 4 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 3.84% | +0.03% | — | |
| 5 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 3.57% | +0.11% | +1.83% | |
| 6 | ISRG | Intuitive Surgical INC | Stock-Healthcare | 2.99% | -0.32% | +0.87% | |
| 7 | NFLX | Netflix INC | Stock-Comm Services | 2.68% | +0.33% | +0.97% | |
| 8 | BAC | Bank Of America CORP | Stock-Financials | 2.55% | -0.06% | — | |
| 9 | NVDA | Nvidia CORP | Stock-Tech | 2.47% | +0.07% | -0.07% | |
| 10 | MA | Mastercard INC - A | Stock-Financials | 1.40% | -0.25% | -11.89% | |
| 11 | TMO | Thermo Fisher Scientific INC | Stock-Healthcare | 0.66% | -0.04% | — | |
| 12 | META | Meta Platforms Inc-class A | Stock-Comm Services | 0.61% | -0.04% | -1.03% | |
| 13 | PLTR | Palantir Technologies Inc-a | Stock-Tech | 0.29% | +0.29% | NEW | |
| 14 | AXP | American Express Co | Stock-Financials | 0.19% | -0.11% | -31.25% |
Portfolio Performance
Performance for Q3 2026
+13.1%
Performance Last 4 Quarters
+46.2%
Based on 83% of reported portfolio value with available pricing
- Stdev
- +19.1%
- Beta
- +0.97
- Alpha
- +2.8%
- Max Drawdown
- -14.3%
- Annualized Perf
- +20.7%
- Batting Avg vs S&P
- +44.4%
- Sortino
- +2.24
- Stutzer
- +0.32
- Treynor
- +0.21
- Sterling
- +1
- Calmar
- +1.45
- Information Ratio
- +0.16
- Tracking Error
- +14.3%
- Stdev Down
- +9.3%
- Winning Months %
- +55.6%
- Losing Months %
- +44.4%
- Best 12 Months
- +48.6%
- Worst 12 Months
- +1.5%
- Efficiency Ratio
- +0.47
- Sharpe
- +1.08
- Stdev Sectors
- +21%
- Skewness
- +0.18
- Kurtosis
- -0.82
- Upside Potential
- +4.05
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 14 | $224.4M | 11 | |
| 2025-12-31 | 13 | $247.4M | 8 | |
| 2025-09-30 | 14 | $234.0M | 23 | |
| 2025-06-30 | 15 | $193.8M | 0 | |
| 2025-03-31 | 15 | $192.0M | 100 | |
| 2024-12-31 | 16 | $227.4M | 0 | |
| 2024-09-30 | 16 | $199.2M | 0 | |
| 2024-06-30 | 15 | $182.2M | 0 | |
| 2024-03-31 | 15 | $155.2M | 0 | |
| 2023-12-31 | 15 | $167.5M | 0 | |
| 2023-09-30 | 15 | $151.1M | 0 | |
| 2023-06-30 | 15 | $165.2M | 0 | |
| 2023-03-31 | 14 | $139.9M | 0 | |
| 2022-12-31 | 15 | $112.0M | 0 | |
| 2022-09-30 | 15 | $129.0M | 0 | |
| 2022-06-30 | 15 | $126.4M | 0 | |
| 2022-03-31 | 16 | $169.7M | 0 | |
| 2021-12-31 | 14 | $173.3M | 0 | |
| 2021-09-30 | 17 | $145.0M | 0 | |
| 2021-06-30 | 17 | $138.3M | 100 | |
| 2021-03-31 | 18 | $126.7M | 13 | |
| 2020-12-31 | 16 | $132.6M | — |
Holding changes this quarter
Prospect Hill Management, LLC's most significant position changes for 2026-03-31: New buy: Palantir Technologies Inc-a (PLTR); Trim: Apple INC (AAPL) — shares -0.10%; Add: Tesla INC (TSLA) — shares +0.16%; Add: Netflix INC (NFLX) — shares +0.97%; Add: Intuitive Surgical INC (ISRG) — shares +0.87%.
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | AAPL | Apple INC | +1.6% | -0.10% | Trim |
| 2 | NFLX | Netflix INC | +0.3% | +0.97% | Add |
| 3 | GOOGL | Alphabet Inc-cl A | +0.1% | +1.83% | Add |
| 4 | NVDA | Nvidia CORP | +0.1% | -0.07% | Trim |
| 5 | GOOG | Alphabet Inc-cl C | 0% | — | Unchanged |
| 6 | AMZN | Amazon.com INC | 0% | +0.09% | Add |
| 7 | TMO | Thermo Fisher Scientific INC | 0% | — | Unchanged |
| 8 | META | Meta Platforms Inc-class A | 0% | -1.03% | Trim |
| 9 | BAC | Bank Of America CORP | -0.1% | — | Unchanged |
| 10 | AXP | American Express Co | -0.1% | -31.25% | Trim |
| 11 | MA | Mastercard INC - A | -0.3% | -11.89% | Trim |
| 12 | ISRG | Intuitive Surgical INC | -0.3% | +0.87% | Add |
| 13 | TSLA | Tesla INC | -1.6% | +0.16% | Add |
| 14 | PLTR | Palantir Technologies Inc-a | — | NEW | New buy |
Filing History
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-06 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-01-29 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-11-07 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-08-11 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-05-05 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-02-11 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-11-05 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-08-02 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-05-08 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-02-08 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-10-16 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-08-08 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-05-09 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-02-06 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-11-07 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-08-05 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-05-04 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-02-07 | 13F-HR | View on EDGAR |
| 2021-09-30 | 2021-11-05 | 13F-HR | View on EDGAR |
| 2021-06-30 | 2021-08-11 | 13F-HR | View on EDGAR |
| 2021-03-31 | 2021-05-10 | 13F-HR | View on EDGAR |
| 2020-12-31 | 2021-02-08 | 13F-HR | View on EDGAR |
FAQ
What is Prospect Hill Management, LLC and what type of investor is it?
Prospect Hill Management, LLC is an investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-03-31), the firm manages a tracked equity portfolio valued at approximately $224.4M, spread across 14 disclosed positions.
What are Prospect Hill Management, LLC's largest equity positions?
Based on the latest 13F filing, Prospect Hill Management, LLC's top holdings by market value are:
1. Apple INC (AAPL) — $128.3M (57.2%)
2. Tesla INC (TSLA) — $37.4M (16.7%)
3. Amazon.com INC (AMZN) — $11.0M (4.9%)
4. Alphabet Inc-cl C (GOOG) — $8.6M (3.8%)
5. Alphabet Inc-cl A (GOOGL) — $8.0M (3.6%)
What changes did Prospect Hill Management, LLC make in its most recent portfolio filing?
In the latest reported quarter, Prospect Hill Management, LLC made 11 notable position adjustments: 1 new positions were initiated, 5 existing holdings were added to, 5 positions were partially reduced, and 0 were completely exited. The largest of these moves: New buy: Palantir Technologies Inc-a (PLTR); Trim: Apple INC (AAPL) — shares -0.10%; Add: Tesla INC (TSLA) — shares +0.16%; Add: Netflix INC (NFLX) — shares +0.97%; Add: Intuitive Surgical INC (ISRG) — shares +0.87%
What sectors does Prospect Hill Management, LLC focus on?
Prospect Hill Management, LLC is concentrated in the following sectors based on its current disclosed equity portfolio:
• Information Technology: 59.9%
• Consumer Discretionary: 21.6%
• Communication Services: 10.7%
• Financials: 4.1%
• Health Care: 3.6%
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