12 West Capital Management LP
CIK 1540531 · View on SEC EDGAR ↗
- Portfolio value
- $534.7M
- Positions
- 18
- As of
- June 30, 2026
Portfolio value QoQ: -9.7% 13F does not disclose cash
- Top 10 holdings weight
- 85.68%
- Top 25 holdings weight
- 100.00%
- Positions above 1%
- 15
- Effective number of positions
- 11.6
Based on 13F long-equity holdings only (cash, bonds, shorts not disclosed)
Turnover Q2 2026: 10.16% Est. buys $57,262,853 · sells $110,662,725
Median holding: 2.0 quarters Tracked Q4 2024–Q2 2026 · 48.6% still held
- New positions
- 2
- Increased
- 3
- Decreased
- 7
- Closed
- 4
On this page
- Performance vs S&P How this manager's 13F portfolio performed against the S&P 500.
- Sector breakdown How the portfolio splits across market sectors.
- Portfolio Every stock this institution reports holding, from its latest 13F.
- Biggest new bets Brand-new positions opened in the latest quarter.
- Top moves The biggest position increases and decreases this quarter.
- Exited positions Positions the manager fully sold out of last quarter.
- Related The person behind this filer, where we can match one.
Performance vs S&P 500
Annualized: -2.0% · S&P 500: +18.0%
Approximates a buy-and-hold portfolio built from quarterly SEC 13F snapshots. Excludes cash, short positions, options/derivatives, and non-13(f) securities — reflects the disclosed long-equity book only, not total fund AUM. SEC filing lag is up to 45 days; this is not a real-time-copyable timing.
Priceable coverage: 100.0% · Options excluded: 0.0%
Sector breakdown
Full portfolio 18 positions
| Type | Streak | 8Q trend | |||||
|---|---|---|---|---|---|---|---|
| GDS GDS Holdings Limited - American Depositary Shares | $76,972,656 | 14.40% | 2,563,192 | $-26,837,591 | Down ×4 | ||
| TBBB BBB Foods Inc. Class A Common Shares | $71,579,476 | 13.39% | 1,717,770 | $-9,338,949 | Down ×3 | ||
| RBLX Roblox Corporation Class A Common Stock | $51,661,000 | 9.66% | 950,000 | $-2,071,000 | |||
| SHAK Shake Shack, Inc. Class A Common Stock | $48,368,284 | 9.05% | 863,411 | $-61,652,566 | Down ×2 | ||
| MRVI Maravai LifeSciences Holdings, Inc. - Class A common stock | $44,055,617 | 8.24% | 7,060,195 | $23,509,265 | Down ×3 | ||
| RGEN Repligen Corporation - Common Stock | $38,225,713 | 7.15% | 280,165 | $15,694,641 | Up ×1 | ||
| AFRM Affirm Holdings, Inc. - Class A Common Stock | $37,513,000 | 7.02% | 460,000 | $12,999,300 | Down ×1 | ||
| TOST Toast, Inc. Class A Common Stock | $34,714,909 | 6.49% | 1,247,840 | $1,634,671 | |||
| ACMR ACM Research, Inc. - Class A Common Stock | $28,550,250 | 5.34% | 225,000 | $28,310,215 | Up ×1 | ||
| HTFL Heartflow, Inc. - Common Stock | $26,479,350 | 4.95% | 902,500 | $10,908,150 | Up ×1 | ||
| NET Cloudflare, Inc. Class A Common Stock | $25,754,400 | 4.82% | 105,000 | $4,088,700 | |||
| HE Hawaiian Electric Industries, Inc. Common Stock | $15,221,250 | 2.85% | 1,125,000 | $-11,490,750 | Down ×2 | ||
| KRUS Kura Sushi USA, Inc. - Class A Common Stock | $10,073,000 | 1.88% | 175,000 | $-21,082,303 | Down ×3 | ||
| OFRM Once Upon a Farm, PBC Common Stock | $7,475,200 | 1.40% | 365,000 | $1,507,450 | |||
| SHOP Shopify Inc. - Class A Subordinate Voting Shares | $5,937,360 | 1.11% | 52,000 | $-230,880 | |||
| ENPH Enphase Energy, Inc. - Common Stock | $4,924,000 | 0.92% | 100,000 | Up ×1 | |||
| ON ON Semiconductor Corporation - Common Stock | $4,727,000 | 0.88% | 50,000 | Up ×1 | |||
| NU Nu Holdings Ltd. Class A Ordinary Shares | $2,471,600 | 0.46% | 185,000 | $-186,850 | |||
| No matches | |||||||
Biggest new bets
New positions opened this quarter, largest first.
Top movers (QoQ)
| Security | Action | Shares Δ | Value Δ |
|---|---|---|---|
| SHAK | Trimmed | -380K | -$61.7M |
| GDS | Trimmed | -13K | -$26.8M |
| MRVI | Trimmed | -200K | +$23.5M |
| KRUS | Trimmed | -271K | -$21.1M |
| RGEN | Bought more | +89K | +$15.7M |
| AFRM | Trimmed | -75K | +$13.0M |
| HE | Trimmed | -675K | -$11.5M |
| HTFL | Bought more | +262K | +$10.9M |
| TBBB | Trimmed | -570K | -$9.3M |
| NET | Price move only | +0 | +$4.1M |
1 position hidden (data completeness check)
Exited positions
Includes corporate events (mergers, delistings) — not all exits are sells
Closed positions reflect 13F reporting changes; for index managers these are often mechanical (delisting, M&A, index rebalancing), not active decisions.
| Security | Quarter | Shares before | Value before | Price since exit |
|---|---|---|---|---|
| KVYO | March 31, 2026 | 1,838,000 | $59,679,860 | -7.9% |
| U | Dec. 31, 2025 | 965,000 | $38,638,600 | 4.4% |
| DDOG | March 31, 2025 | 266,500 | $38,080,185 | 131.7% |
| WRBY | June 30, 2026 | 1,304,727 | $27,490,598 | -9.9% |
| SN | Sept. 30, 2025 | 226,000 | $22,371,740 | 75.0% |
| WRBY | June 30, 2025 | 1,175,000 | $21,420,250 | 24.7% |
| WING | March 31, 2026 | 79,000 | $18,840,710 | -26.3% |
| GO | March 31, 2025 | 1,170,000 | $18,263,700 | -18.8% |
| BBNX | March 31, 2026 | 575,000 | $17,520,250 | 87.4% |
| VSCO | March 31, 2025 | 422,962 | $17,519,086 | No longer tracked |
| TPR | March 31, 2025 | 250,000 | $16,332,500 | 85.6% |
| FWRG | March 31, 2026 | 1,070,701 | $16,146,171 | 21.6% |
| GAP | March 31, 2025 | 650,000 | $15,359,500 | -2.7% |
| SDHC | Dec. 31, 2025 | 535,140 | $9,450,572 | -25.5% |
| MNDY | June 30, 2025 | 34,000 | $8,267,440 | -71.9% |
| CPNG | March 31, 2026 | 250,000 | $5,897,500 | -14.7% |
| ELF | June 30, 2026 | 70,000 | $4,242,700 | 35.2% |
| OSCR | March 31, 2026 | 126,855 | $1,822,906 | 168.7% |
| AEHR | June 30, 2026 | 22,000 | $815,760 | 8.5% |
| CRWV | June 30, 2026 | 7,000 | $542,290 | -9.5% |