1W
12 West Capital Management LP 13F Holdings & Recent Stock Buys (Q2 2026)
12 West Capital Management LPCIK: 0001540531
Momentum followerQuality / disciplined sizing
Total reported value
$534.7M
Reporting period: 2026-06-30 · Number of holdings: 18
12 West Capital Management LP disclosed 18 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $534.7M and a quarterly turnover rate of 48.7%.
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Personality snowflake
- Concentration
- 34.6
- Portfolio Stability
- 48.67
- Momentum
- 100
- Sector conviction
- 58.17
- Diversification
- 36
- Sizing Uniformity
- 92.32
12 West Capital Management LP's disclosed holdings carry a Herfindahl concentration index of 0.086 — mathematically equivalent to about 12 equally-sized positions, close to its 18 actual disclosed holdings. Value is spread relatively evenly across the portfolio rather than concentrated in a handful of names.
Position sizes are fairly uniform across the portfolio (a coefficient of variation of 0.77), suggesting a disciplined, rules-based approach to how much capital goes into each idea.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Sector classification currently covers about 50% of this portfolio's disclosed value; the remainder includes holdings (e.g. unmapped tickers, options, or other security types) not yet covered by our sector mapping.
Source and citation information
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Recent moves
View source Form 13F filing on SEC.govTrim SHAK
-30.6% -$61.7M
Add ACMR
+3588.5% $28.3M
Add MRVI
-2.8% $23.5M
Sold out WRBY
Trim KRUS
-60.8% -$21.1M
Add RGEN
+46.5% $15.7M
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 | GDS | Gds Holdings LTD - Adr | Stock-Other | 14.40% | -3.12% | -0.52% | |
| 2 | TBBB | BBB Foods Inc. | Stock-Other | 13.39% | -0.27% | -24.92% | |
| 3 | RBLX | Roblox CORP -class A | Stock-Comm Services | 9.66% | +0.59% | — | |
| 4 | SHAK | Shake Shack Inc - Class A | Stock-Consumer Disc | 9.05% | -9.52% | -30.57% | |
| 5 | MRVI | Maravai Lifesciences Hldgs-a | Stock-Other | 8.24% | +4.77% | -2.75% | |
| 6 | RGEN | Repligen CORP | Stock-Healthcare | 7.15% | +3.35% | +46.50% | |
| 7 | AFRM | Affirm Holdings Inc | Stock-Financials | 7.02% | +2.88% | -14.02% | |
| 8 | TOST | Toast Inc-class A | Stock-Tech | 6.49% | +0.91% | — | |
| 9 | ACMR | Acm Research Inc-class A | Stock-Other | 5.34% | +5.30% | +3588.52% | |
| 10 | HTFL | Heartflow Inc | Stock-Other | 4.95% | +2.32% | +41.02% | |
| 11 | NET | Cloudflare Inc - Class A | Stock-Tech | 4.82% | +1.16% | — | |
| 12 | HE | Hawaiian Electric Inds | Stock-Utilities | 2.85% | -1.66% | -37.50% | |
| 13 | KRUS | Kura Sushi USA Inc-class A | Stock-Other | 1.88% | -3.38% | -60.80% | |
| 14 | OFRM | Once Upon A Farm Pbc | Stock-Other | 1.40% | +0.39% | — | |
| 15 | SHOP | Shopify Inc - Class A | Stock-Tech | 1.11% | +0.07% | — | |
| 16 | ENPH | Enphase Energy Inc | Stock-Tech | 0.92% | +0.92% | NEW | |
| 17 | ON | On Semiconductor | Stock-Tech | 0.88% | +0.88% | NEW | |
| 18 | NU | Nu Holdings Ltd. | Stock-Financials | 0.46% | +0.01% | — |
Portfolio Performance
Performance for Q3 2026
+13.6%
Performance Last 4 Quarters
-14.3%
- Stdev
- +26.2%
- Beta
- +1.2
- Alpha
- -11.2%
- Max Drawdown
- -27.7%
- Annualized Perf
- +9.9%
- Batting Avg vs S&P
- +44.4%
- Sortino
- +0.79
- Stutzer
- +0.14
- Treynor
- +0.11
- Sterling
- +0.36
- Calmar
- +0.36
- Information Ratio
- -0.34
- Tracking Error
- +21.2%
- Stdev Down
- +16.4%
- Winning Months %
- +50%
- Losing Months %
- +50%
- Best 12 Months
- +51.3%
- Worst 12 Months
- -26.5%
- Efficiency Ratio
- +0.15
- Sharpe
- +0.49
- Stdev Sectors
- +6.7%
- Skewness
- -0.2
- Kurtosis
- +0.12
- Upside Potential
- +2.61
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
| Period | Holdings | Total value | Stability | Top holdings | |
|---|---|---|---|---|---|
| 2026 Q2 | 18 | $534.7M | 49 | ||
| 2026 Q1 | 20 | $592.4M | 54 | ||
| 2025 Q4 | 18 | $839.7M | 28 | ||
| 2025 Q3 | 17 | $964.1M | 40 | ||
| 2025 Q2 | 17 | $945.5M | 0 | ||
| 2025 Q1 | 17 | $677.6M | 100 | ||
| 2024 Q4 | 16 | $954.6M | 0 | ||
| 2024 Q3 | 17 | $977.4M | 0 | ||
| 2024 Q2 | 19 | $972.7M | 0 | ||
| 2024 Q1 | 25 | $1.1B | 0 | ||
| 2023 Q4 | 20 | $1.1B | 0 | ||
| 2023 Q3 | 24 | $1.1B | 0 | ||
| 2023 Q2 | 23 | $1.2B | 0 | ||
| 2023 Q1 | 24 | $1.2B | 0 | ||
| 2022 Q4 | 21 | $989.4M | 0 | ||
| 2022 Q3 | 20 | $1.1B | 0 | ||
| 2022 Q2 | 22 | $1.2B | 0 | ||
| 2022 Q1 | 22 | $1.6B | 0 | ||
| 2021 Q4 | 19 | $2.3B | 0 | ||
| 2021 Q3 | 17 | $2.2B | 0 | ||
| 2021 Q2 | 15 | $2.4B | 22 | ||
| 2021 Q1 | 14 | $2.1B | 34 | ||
| 2020 Q4 | 14 | $2.3B | 25 | ||
| 2020 Q3 | 17 | $2.1B | 26 | ||
| 2020 Q2 | 16 | $1.9B | 47 | ||
| 2020 Q1 | 18 | $1.7B | 33 | ||
| 2019 Q4 | 14 | $1.6B | 40 | ||
| 2019 Q3 | 15 | $1.6B | 19 | ||
| 2019 Q2 | 15 | $1.3B | 21 | ||
| 2019 Q1 | 14 | $1.2B | 38 | ||
| 2018 Q4 | 16 | $971.5M | 40 | ||
| 2018 Q3 | 20 | $1.4B | 46 | ||
| 2018 Q2 | 22 | $1.2B | 43 | ||
| 2018 Q1 | 19 | $909.4M | 37 | ||
| 2017 Q4 | 18 | $827.1M | 27 | ||
| 2017 Q3 | 19 | $715.1M | 46 | ||
| 2017 Q2 | 16 | $591.0M | 61 | ||
| 2017 Q1 | 18 | $502.8M | 55 | ||
| 2016 Q4 | 16 | $562.6M | 32 | ||
| 2016 Q3 | 21 | $697.4M | 34 | ||
| 2016 Q2 | 20 | $620.0M | 28 | ||
| 2016 Q1 | 19 | $719.5M | 49 | ||
| 2015 Q4 | 17 | $700.7M | 28 | ||
| 2015 Q3 | 17 | $685.3M | 37 | ||
| 2015 Q2 | 18 | $875.8M | 21 | ||
| 2015 Q1 | 17 | $898.8M | 24 | ||
| 2014 Q4 | 16 | $806.2M | 40 | ||
| 2014 Q3 | 23 | $856.9M | 74 | ||
| 2014 Q2 | 16 | $780.2M | 58 | ||
| 2014 Q1 | 17 | $625.7M | 21 | ||
| 2013 Q4 | 14 | $627.9M | 34 | ||
| 2013 Q3 | 16 | $699.8M | 52 | ||
| 2013 Q2 | 16 | $629.7M | 0 |
* This report is exclusively curated by the AlphaSMO team. AlphaSMO is the web's most authoritative 13F / Inside Trader database, delivering precise insider trading and institutional holdings insights.
Holding changes this quarter
12 West Capital Management LP's most significant position changes for 2026-06-30: Sold out: Warby Parker Inc-class A (WRBY); New buy: Enphase Energy Inc (ENPH); New buy: On Semiconductor (ON); Sold out: Elf Beauty Inc (ELF); Sold out: Aehr Test Systems (AEHR).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | ACMR | Acm Research Inc-class A | +5.3% | +3588.52% | Add |
| 2 | MRVI | Maravai Lifesciences Hldgs-a | +4.8% | -2.75% | Trim |
| 3 | RGEN | Repligen CORP | +3.4% | +46.50% | Add |
| 4 | AFRM | Affirm Holdings Inc | +2.9% | -14.02% | Trim |
| 5 | HTFL | Heartflow Inc | +2.3% | +41.02% | Add |
| 6 | NET | Cloudflare Inc - Class A | +1.2% | — | Unchanged |
| 7 | ENPH | Enphase Energy Inc | +0.9% | NEW | New buy |
| 8 | TOST | Toast Inc-class A | +0.9% | — | Unchanged |
| 9 | ON | On Semiconductor | +0.9% | NEW | New buy |
| 10 | RBLX | Roblox CORP -class A | +0.6% | — | Unchanged |
| 11 | OFRM | Once Upon A Farm Pbc | +0.4% | — | Unchanged |
| 12 | SHOP | Shopify Inc - Class A | +0.1% | — | Unchanged |
| 13 | NU | Nu Holdings Ltd. | 0% | — | Unchanged |
| 14 | CRWV | Coreweave Inc-cl A | -0.1% | EXIT | Sold out |
| 15 | AEHR | Aehr Test Systems | -0.1% | EXIT | Sold out |
| 16 | TBBB | BBB Foods Inc. | -0.3% | -24.92% | Trim |
| 17 | ELF | Elf Beauty Inc | -0.7% | EXIT | Sold out |
| 18 | HE | Hawaiian Electric Inds | -1.7% | -37.50% | Trim |
| 19 | GDS | Gds Holdings LTD - Adr | -3.1% | -0.52% | Trim |
| 20 | KRUS | Kura Sushi USA Inc-class A | -3.4% | -60.80% | Trim |
| 21 | WRBY | Warby Parker Inc-class A | -4.6% | EXIT | Sold out |
| 22 | SHAK | Shake Shack Inc - Class A | -9.5% | -30.57% | Trim |
Filing History
FAQ
What is 12 West Capital Management LP and what type of investor is it?
12 West Capital Management LP 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 (2026-06-30), the firm manages a tracked equity portfolio valued at approximately $534.7M, spread across 18 disclosed positions.
What are 12 West Capital Management LP's largest equity positions?
Based on the latest 13F filing, 12 West Capital Management LP's top holdings by market value are:
1. Gds Holdings LTD - Adr (GDS) — $77.0M (14.4%)
2. BBB Foods Inc. (TBBB) — $71.6M (13.4%)
3. Roblox CORP -class A (RBLX) — $51.7M (9.7%)
4. Shake Shack Inc - Class A (SHAK) — $48.4M (9.1%)
5. Maravai Lifesciences Hldgs-a (MRVI) — $44.1M (8.2%)
What changes did 12 West Capital Management LP make in its most recent portfolio filing?
In the latest reported quarter, 12 West Capital Management LP made 16 notable position adjustments: 2 new positions were initiated, 3 existing holdings were added to, 7 positions were partially reduced, and 4 were completely exited. The largest of these moves: Sold out: Warby Parker Inc-class A (WRBY); New buy: Enphase Energy Inc (ENPH); New buy: On Semiconductor (ON); Sold out: Elf Beauty Inc (ELF); Sold out: Aehr Test Systems (AEHR)
What sectors does 12 West Capital Management LP focus on?
12 West Capital Management LP is concentrated in the following sectors based on its current disclosed equity portfolio:
• Information Technology: 28.2%
• Communication Services: 19.2%
• Consumer Discretionary: 17.9%
• Financials: 14.8%
• Health Care: 14.2%
• Utilities: 5.7%
Investment Profile
12 West Capital Management LP returned an annualized 9.9% over the trailing 36 months — underperforming the S&P 500 by 11.2 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 1.20 (more volatile than the market) and a 44% quarterly batting average against the index.
Its portfolio is broadly diversified and moderately active.
Its turnover score has risen from 0 to 49 over the past 4 quarters — a shift toward more active trading.
It has trimmed its SHAK position for two straight quarters, cutting it by $111.0M while still holding $48.4M.
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Developer Access
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