Sunstone Asset Management, LP
CIK 2111996 · View on SEC EDGAR ↗
- Portfolio value
- $91.2M
- Positions
- 57
- As of
- June 30, 2026
#8,416 of 9,443 by 13F value · top 89.1%
Portfolio value QoQ: +7.2% 13F does not disclose cash
- Top 10 holdings weight
- 44.38%
- Top 25 holdings weight
- 76.84%
- Positions above 1%
- 38
- Effective number of positions
- 33.0
Based on 13F long-equity holdings only (cash, bonds, shorts not disclosed)
Turnover Q2 2026: 40.89% Est. buys $36,049,056 · sells $37,839,271
- New positions
- 23
- Increased
- 12
- Decreased
- 6
- Closed
- 20
On this page
- 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.
Sector breakdown
Technology
44.3%
Industrials
8.6%
Consumer Discretionary
6.6%
Telecommunication
5.8%
Retail
5.4%
Real Estate
4.4%
Communications
3.6%
Financial Services
2.7%
Communication Services
1.9%
Financials
1.4%
Consumer products
1.1%
Other/Unmapped
14.1%
Full portfolio 57 positions
| Type | Streak | 8Q trend | |||||
|---|---|---|---|---|---|---|---|
| AMAT Applied Materials, Inc. - Common Stock | $5,480,340 | 6.01% | 7,580 | $2,916,915 | Up ×2 | ||
| MKSI MKS Inc. - Common Stock | $5,159,680 | 5.66% | 11,600 | Up ×1 | |||
| MTSI MACOM Technology Solutions Holdings, Inc. - Common Stock | $4,435,495 | 4.86% | 11,661 | $1,268,555 | Down ×1 | ||
| GLW Corning Incorporated Common Stock | $4,353,205 | 4.77% | 17,052 | $2,290,404 | Up ×1 | ||
| DASH DoorDash, Inc. - Common Stock | $4,225,737 | 4.63% | 22,900 | $1,868,382 | Up ×2 | ||
| Unknown issuer (CUSIP: 090043AF7) | $4,037,191 | 4.43% | 4,660,000 | $-118,597 | |||
| SNPS Synopsys, Inc. - Common Stock | $3,635,471 | 3.98% | 8,150 | $689,625 | Up ×2 | ||
| ASML ASML Holding N.V. - New York Registry Shares | $3,382,048 | 3.71% | 1,700 | Up ×1 | |||
| SNOW Snowflake Inc. Common Stock | $3,054,000 | 3.35% | 12,000 | $1,968,096 | Up ×1 | ||
| GSAT Globalstar, Inc. - Common Stock | $2,723,215 | 2.98% | 33,500 | Up ×1 | |||
| TDS Telephone and Data Systems, Inc. Common Shares | $2,613,054 | 2.86% | 70,604 | $-359,374 | |||
| APH Amphenol Corporation Common Stock | $2,556,640 | 2.80% | 14,500 | $724,565 | |||
| SE Sea Limited American Depositary Shares, each representing one Class A Ordinary Share | $2,512,088 | 2.75% | 26,214 | $1,384,713 | Up ×2 | ||
| V Visa Inc. | $2,504,557 | 2.75% | 7,300 | $298,205 | |||
| AMZN Amazon.com, Inc. - Common Stock | $2,454,902 | 2.69% | 10,300 | Up ×1 | |||
| ADI Analog Devices, Inc. - Common Stock | $2,383,020 | 2.61% | 6,000 | $1,619,484 | Up ×1 | ||
| Unknown issuer (CUSIP: 91332UAB7) | $1,968,000 | 2.16% | 2,000,000 | $22,000 | |||
| ANET Arista Networks, Inc. Common Stock | $1,766,752 | 1.94% | 10,400 | Up ×1 | |||
| EQIX Equinix, Inc. - Common Stock | $1,714,732 | 1.88% | 1,645 | $-329,068 | Down ×1 | ||
| NTNX Nutanix, Inc. - Class A Common Stock | $1,676,074 | 1.84% | 32,890 | $425,925 | |||
| AMT American Tower Corporation (REIT) Common Stock | $1,621,633 | 1.78% | 9,914 | $-89,325 | |||
| ORCL Oracle Corporation Common Stock | $1,540,035 | 1.69% | 10,500 | $730,820 | Up ×2 | ||
| CIEN Ciena Corporation Common Stock | $1,491,302 | 1.63% | 3,040 | Up ×1 | |||
| STX Seagate Technology Holdings PLC - Ordinary Shares (Ireland) | $1,428,200 | 1.57% | 1,480 | Up ×1 | |||
| Unknown issuer (CUSIP: 86800UAB0) | $1,386,750 | 1.52% | 1,500,000 | $586,850 | Up ×1 | ||
| Unknown issuer (CUSIP: 60937P906) | $1,379,500 | 1.51% | 20,000 | Up ×1 | |||
| MRSH Marsh Common Stock | $1,322,026 | 1.45% | 7,932 | $-955,719 | Down ×1 | ||
| JOYY JOYY Inc. - American Depositary Shares | $1,234,343 | 1.35% | 18,705 | $142,158 | |||
| TER Teradyne, Inc. - Common Stock | $1,122,509 | 1.23% | 2,320 | Up ×1 | |||
| NOW ServiceNow, Inc. Common Stock | $1,114,914 | 1.22% | 11,230 | $275,458 | Up ×2 | ||
| KLAC KLA Corporation - Common Stock | $1,068,053 | 1.17% | 3,540 | $-345,461 | Up ×1 | ||
| TWLO Twilio Inc. Class A Common Stock | $1,065,901 | 1.17% | 5,166 | $-389,333 | Down ×1 | ||
| TCOM Trip.com Group Limited - American Depositary Shares | $1,047,792 | 1.15% | 26,300 | $564,829 | Up ×1 | ||
| SONY Sony Group Corporation American Depositary Shares | $995,498 | 1.09% | 49,626 | $-31,760 | |||
| NET Cloudflare, Inc. Class A Common Stock | $993,536 | 1.09% | 4,046 | Up ×1 | |||
| COHR Coherent Corp. Common Stock | $946,728 | 1.04% | 2,400 | Up ×1 | |||
| GLD | $943,053 | 1.03% | 2,560 | $-158,592 | |||
| Unknown issuer (CUSIP: 90138F902) | $939,000 | 1.03% | 15,000 | Up ×1 | |||
| Unknown issuer (CUSIP: 833445909) | $828,250 | 0.91% | 10,000 | Up ×1 | |||
| SHOP Shopify Inc. - Class A Subordinate Voting Shares | $820,954 | 0.90% | 7,190 | $-31,924 | |||
| OLED Universal Display Corporation - Common Stock | $798,100 | 0.87% | 9,217 | $-46,730 | |||
| ABNB Airbnb, Inc. - Class A Common Stock | $715,500 | 0.78% | 5,000 | $-1,393,376 | Down ×1 | ||
| SBAC SBA Communications Corporation - Class A Common Stock | $705,840 | 0.77% | 4,000 | Up ×1 | |||
| GWRE Guidewire Software, Inc. Common Stock | $541,420 | 0.59% | 4,400 | Up ×1 | |||
| Unknown issuer (CUSIP: 03831W908) | $480,750 | 0.53% | 5,000 | Up ×1 | |||
| ESTC Elastic N.V. Ordinary Shares | $376,332 | 0.41% | 6,600 | $46,530 | |||
| S SentinelOne, Inc. Class A Common Stock | $339,400 | 0.37% | 20,000 | $81,800 | |||
| RBLX Roblox Corporation Class A Common Stock | $320,960 | 0.35% | 5,900 | $-512,112 | Down ×1 | ||
| Unknown issuer (CUSIP: 18915M907) | $274,625 | 0.30% | 5,000 | Up ×1 | |||
| Unknown issuer (CUSIP: 338307AF8) | $177,540 | 0.19% | 200,000 | $3,040 | |||
| ZIP ZipRecruiter, Inc. Class A Common Stock | $145,538 | 0.16% | 38,810 | $74,128 | |||
| Unknown issuer (CUSIP: 40171V900) | $139,000 | 0.15% | 20,000 | Up ×1 | |||
| Unknown issuer (CUSIP: 30303M902) | $138,250 | 0.15% | 5,000 | Up ×1 | |||
| Unknown issuer (CUSIP: 771049903) | $62,250 | 0.07% | 15,000 | Up ×1 | |||
| Unknown issuer (CUSIP: 29786A906) | $45,500 | 0.05% | 2,500 | Up ×1 | |||
| Unknown issuer (CUSIP: 67059N908) | $40,000 | 0.04% | 10,000 | Up ×1 | |||
| Unknown issuer (CUSIP: 68389X905) | $6,050 | 0.01% | 10,000 | Up ×1 | |||
| No matches | |||||||
Biggest new bets
New positions opened this quarter, largest first.
| Security | Value | Shares | % of portfolio |
|---|---|---|---|
| MKSI | $5,159,680 | 11,600 | 5.66% |
| ASML | $3,382,048 | 1,700 | 3.71% |
| GSAT | $2,723,215 | 33,500 | 2.98% |
| AMZN | $2,454,902 | 10,300 | 2.69% |
| ANET | $1,766,752 | 10,400 | 1.94% |
| CIEN | $1,491,302 | 3,040 | 1.63% |
| STX | $1,428,200 | 1,480 | 1.57% |
| Unknown issuer (CUSIP: 60937P906) | $1,379,500 | 20,000 | 1.51% |
| TER | $1,122,509 | 2,320 | 1.23% |
| NET | $993,536 | 4,046 | 1.09% |
| COHR | $946,728 | 2,400 | 1.04% |
| Unknown issuer (CUSIP: 90138F902) | $939,000 | 15,000 | 1.03% |
| Unknown issuer (CUSIP: 833445909) | $828,250 | 10,000 | 0.91% |
| SBAC | $705,840 | 4,000 | 0.77% |
| GWRE | $541,420 | 4,400 | 0.59% |
Top movers (QoQ)
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 |
|---|---|---|---|---|
| NVDA | June 30, 2026 | 30,441 | $5,310,280 | 9.5% |
| MDB | June 30, 2026 | 15,996 | $3,915,341 | 26.7% |
| CYBR | March 31, 2026 | 8,600 | $3,836,116 | No longer tracked |
| PANW | June 30, 2026 | 17,113 | $2,743,556 | 4.3% |
| AMD | June 30, 2026 | 11,096 | $2,257,259 | -19.8% |
| MSFT | June 30, 2026 | 5,900 | $2,184,003 | 29.5% |
| FLEX | June 30, 2026 | 30,274 | $1,981,736 | -31.4% |
| MNDY | March 31, 2026 | 11,641 | $1,717,746 | 31.3% |
| SNDK | June 30, 2026 | 2,600 | $1,651,884 | -30.9% |
| NFLX | June 30, 2026 | 16,000 | $1,537,920 | 13.0% |
| TXN | March 31, 2026 | 8,348 | $1,448,295 | 37.0% |
| GOOG | June 30, 2026 | 4,647 | $1,333,224 | -3.7% |
| NOK | June 30, 2026 | 164,800 | $1,324,992 | -25.4% |
| INTU | June 30, 2026 | 2,880 | $1,245,254 | 38.7% |
| TTMI | June 30, 2026 | 12,100 | $1,178,782 | -38.6% |
| CLS | June 30, 2026 | 3,998 | $1,126,157 | -17.4% |
| RMBS | June 30, 2026 | 11,746 | $1,010,508 | -31.2% |
| U | June 30, 2026 | 42,900 | $941,226 | 63.6% |
| FORM | March 31, 2026 | 15,409 | $858,928 | 17.2% |
| AVGO | June 30, 2026 | 2,721 | $842,585 | -3.6% |
| TTD | March 31, 2026 | 20,000 | $759,200 | -40.7% |
| CFLT | March 31, 2026 | 21,300 | $644,112 | No longer tracked |
| ETSY | June 30, 2026 | 10,900 | $544,782 | 9.5% |
| ZS | June 30, 2026 | 3,760 | $527,490 | 29.5% |
| DDOG | March 31, 2026 | 3,206 | $435,984 | 97.1% |
| BE | March 31, 2026 | 4,800 | $417,072 | 48.4% |
| SMCI | March 31, 2026 | 14,000 | $409,780 | 63.8% |
| ZM | June 30, 2026 | 4,200 | $337,638 | 24.9% |
| KVYO | March 31, 2026 | 10,335 | $335,577 | -6.9% |
| EM | June 30, 2026 | 48,918 | $55,277 | No longer tracked |