Sunstone Asset Management
Sunstone Asset Management reported 57 stocks worth $92.4M in its 13F filing for Q2 2026, filed Aug 14, 2026. Its largest holdings are AMAT (5.9%), MKSI (5.6%) and MTSI (4.8%). Compared with Q1 2026, the fund opened new positions in MKSI, BILL and ASML, added to AMAT, GLW and DASH, trimmed MTSI, EQIX and MRSH and sold out of NVDA, MDB and PANW.
Holdings
| # | Stock | Value | Weight | Shares | Change | Shares, 3 qtrs | Held |
|---|---|---|---|---|---|---|---|
| 1 |  AMAT Applied Matls Inc | $5.5M | 5.9% | 7,580 | +80 (+1%) | 3 of 3 | |
| 2 |  MKSI Mks Inc. | $5.2M | 5.6% | 12K | New position | 1 of 3 | |
| 3 |  MTSI Macom Tech Solutions Hldgs I | $4.4M | 4.8% | 12K | −2,600 (−18%) | 3 of 3 | |
| 4 |  GLW Corning Inc | $4.4M | 4.7% | 17K | +1,881 (+12%) | 2 of 3 | |
| 5 |  DASH Doordash Inc | $4.2M | 4.6% | 23K | +7,200 (+46%) | 3 of 3 | |
| 6 |  BILL Bill Holdings Inc | $4M | 4.4% | 4.7M | New position | 1 of 3 | |
| 7 |  SNPS Synopsys Inc | $3.6M | 3.9% | 8,150 | +720 (+10%) | 3 of 3 | |
| 8 |  ASML Asml Holding N V | $3.4M | 3.7% | 1,700 | New position | 1 of 3 | |
| 9 |  SNOW Snowflake Inc | $3.1M | 3.3% | 12K | +4,800 (+67%) | 2 of 3 | |
| 10 |  GSAT Globalstar Inc | $2.7M | 3.0% | 34K | New position | 1 of 3 |
Positions at Jun 30, 2026, as reported. Change is against the fund's Q1 2026 filing; weight is the share of the fund's reported stocks.
Sold out
held in Q1 2026, gone in Q2 2026| Stock | Value last quarter | Shares sold |
|---|---|---|
 NVDA Nvidia Corporation | $5.3M | 30K |
 MDB Mongodb Inc | $3.9M | 16K |
 PANW Palo Alto Networks Inc | $2.7M | 17K |
 AMD Advanced Micro Devices Inc | $2.3M | 11K |
 MSFT Microsoft Corp | $2.2M | 5,900 |
🔒 Free account: see all 20.
Reported value
last 3 quartersThe value of the US stocks the fund reported, at quarter end prices. It moves with the market as well as with buying and selling.
Filings for Q2 2026
straight from the SEC| Filed | Form | Quarter | |
|---|---|---|---|
| Aug 14, 2026 | 13F-HR | Q2 2026 | SEC filing ↗ |
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All hedge fund holdings →Sunstone Asset Management 13F FAQ
What does Sunstone Asset Management own?
Sunstone Asset Management reported 57 stocks worth $92.4M in its 13F filing for Q2 2026, filed Aug 14, 2026. Its largest holdings are AMAT (5.9%), MKSI (5.6%) and MTSI (4.8%). The table above lists every position in the filing (the top 10 without an account).
What did Sunstone Asset Management buy and sell in Q2 2026?
Compared with Q1 2026: 27 new positions, 11 added to, 6 trimmed and 20 sold out. New positions include MKSI, BILL and ASML. It sold all of NVDA, MDB and PANW.
When will Sunstone Asset Management file its next 13F?
Holdings as of Sep 30, 2026 are due by Nov 16, 2026. The filing appears on this page within minutes of reaching the SEC.
How much is Sunstone Asset Management's portfolio worth?
The Q2 2026 filing reports $92.4M in US stocks. That leaves out cash, bonds, short positions and most foreign holdings, so the fund's total assets are usually larger.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Holdings come from the fund's SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. The fund may have changed its positions since. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.