ROSENBLUM SILVERMAN SUTTON S F INC /CA — 13F Holdings & Portfolio
CIK 918893 · latest 13F-HR filed 2026-08-13
ROSENBLUM SILVERMAN SUTTON S F INC /CA manages $416.2M in 13F-reported U.S. long-equity assets across 80 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are NVDA (10.73%), AMZN (5.39%), GOOGL (4.94%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 8 new positions, exited 4, added to 43, and trimmed 15.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
SUITE 725
SAN FRANCISCO, CA 94109
$416.2M
Long-equity book
80
Distinct positions
2026-06-30
Filed 2026-08-13
+8 / −4 / ↑43 / ↓15
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- VANGUARD SCOTTSDALE FDS$6.3M +557.8%
- SHARKNINJA INC$5.0M +39.0%
- BLOCK INC$3.5M +203.7%
- ALPHABET INC$3.3M +19.4%
- SOMNIGROUP INTERNATIONAL INC$3.0M +371.0%
Top Trims
- NETFLIX INC.-$4.9M -27.0%
- XYLEM INC-$4.2M -88.2%
- INSULET CORP-$2.0M -28.6%
- INVESCO EXCHANGE TRADED FD T-$1.7M -74.8%
- SALESFORCE INC-$1.6M -21.3%
New Positions
- JANUS DETROIT STR TR$7.6M
- AMPHENOL CORP$7.3M
- ISHARES TR$941.7K
- J P MORGAN EXCHANGE TRADED F$593.0K
- PROSHARES TR$242.1K
Exited Positions
- ZILLOW GROUP INC$4.5M
- BELLRING BRANDS INC$758.0K
- ZOETIS INC$412.1K
- PAYPAL HLDGS INC$206.9K
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | NVIDIA CORPORATION | NVDA | 67066G104 | $44.6M | 10.73% | 223,074 | SH |
| 2 | AMAZON COM INC | AMZN | 023135106 | $22.4M | 5.39% | 94,068 | SH |
| 3 | ALPHABET INC | GOOGL | 02079K305 | $20.5M | 4.94% | 57,476 | SH |
| 4 | VISA INC | V | 92826C839 | $19.5M | 4.68% | 56,807 | SH |
| 5 | SHARKNINJA INC | SN | G8068L108 | $17.8M | 4.28% | 117,059 | SH |
| 6 | MICROSOFT CORP | MSFT | 594918104 | $17.1M | 4.12% | 45,941 | SH |
| 7 | META PLATFORMS INC | META | 30303M102 | $16.7M | 4.00% | 29,575 | SH |
| 8 | COSTCO WHOLESALE CORPORATION | COST | 22160K105 | $16.2M | 3.90% | 17,355 | SH |
| 9 | NETFLIX INC. | NFLX | 64110L106 | $13.3M | 3.20% | 186,495 | SH |
| 10 | JANUS DETROIT STR TR | JMBS | 47103U852 | $12.5M | 2.99% | 276,850 | SH |
| 11 | ALPHABET INC | GOOG | 02079K107 | $11.7M | 2.81% | 33,097 | SH |
| 12 | CINTAS CORP | CTAS | 172908105 | $11.7M | 2.80% | 68,633 | SH |
| 13 | ALNYLAM PHARMACEUTICALS INC | ALNY | 02043Q107 | $9.7M | 2.33% | 32,172 | SH |
| 14 | VANGUARD SCOTTSDALE FDS | VCIT | 92206C870 | $9.4M | 2.25% | 113,435 | SH |
| 15 | THERMO FISHER SCIENTIFIC INC | TMO | 883556102 | $9.2M | 2.22% | 18,388 | SH |
| 16 | J P MORGAN EXCHANGE TRADED F | JBND | 46654Q716 | $9.2M | 2.21% | 172,210 | SH |
| 17 | ISHARES TR | FLOT | 46429B655 | $8.8M | 2.11% | 171,980 | SH |
| 18 | REDDIT INC | RDDT | 75734B100 | $8.2M | 1.98% | 47,403 | SH |
| 19 | JPMORGAN CHASE & CO | JPM | 46625H100 | $7.6M | 1.82% | 23,195 | SH |
| 20 | JANUS DETROIT STR TR | JAAA | 47103U845 | $7.6M | 1.82% | 149,875 | SH |
| 21 | VANGUARD SCOTTSDALE FDS | VCSH | 92206C409 | $7.4M | 1.78% | 93,920 | SH |
| 22 | AMPHENOL CORP | APH | 032095101 | $7.3M | 1.75% | 41,398 | SH |
| 23 | DECKERS OUTDOOR CORP | DECK | 243537107 | $6.9M | 1.65% | 69,115 | SH |
| 24 | SYNOPSYS INC | SNPS | 871607107 | $6.2M | 1.49% | 13,873 | SH |
| 25 | SALESFORCE INC | CRM | 79466L302 | $5.9M | 1.41% | 37,572 | SH |
| 26 | BLOCK INC | XYZ | 852234103 | $5.3M | 1.27% | 69,455 | SH |
| 27 | INSULET CORP | PODD | 45784P101 | $5.1M | 1.22% | 33,452 | SH |
| 28 | HOME DEPOT INC | HD | 437076102 | $5.0M | 1.19% | 14,039 | SH |
| 29 | BLACKSTONE INC | BX | 09260D107 | $4.7M | 1.14% | 40,257 | SH |
| 30 | OKTA INC | OKTA | 679295105 | $4.3M | 1.04% | 31,723 | SH |
| 31 | TESLA INC | TSLA | 88160R101 | $4.1M | 0.98% | 9,720 | SH |
| 32 | ISHARES TR | DGRO | 46434V621 | $3.9M | 0.94% | 51,649 | SH |
| 33 | ISHARES TR | IWB | 464287622 | $3.9M | 0.94% | 9,506 | SH |
| 34 | SOMNIGROUP INTERNATIONAL INC | SGI | 88023U101 | $3.8M | 0.92% | 48,920 | SH |
| 35 | SAIA INC | SAIA | 78709Y105 | $3.6M | 0.87% | 8,588 | SH |
| 36 | IQVIA HLDGS INC | IQV | 46266C105 | $3.0M | 0.72% | 15,468 | SH |
| 37 | ADOBE INC | ADBE | 00724F101 | $2.8M | 0.67% | 13,652 | SH |
| 38 | APPLE INC | AAPL | 037833100 | $2.8M | 0.67% | 9,660 | SH |
| 39 | BANK OF AMER CORP | BAC | 060505104 | $2.7M | 0.64% | 46,720 | SH |
| 40 | SERVICENOW INC | NOW | 81762P102 | $2.4M | 0.59% | 24,610 | SH |
| 41 | STATE STR SPDR S&P MIDCAP 40 | MDY | 78467Y107 | $2.3M | 0.55% | 3,232 | SH |
| 42 | SPDR SERIES TRUST | CWB | 78464A359 | $2.1M | 0.49% | 19,093 | SH |
| 43 | TJX COS INC NEW | TJX | 872540109 | $1.9M | 0.46% | 12,716 | SH |
| 44 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $1.7M | 0.40% | 2,245 | SH |
| 45 | ISHARES TR | IJT | 464287887 | $1.4M | 0.33% | 7,653 | SH |
| 46 | AMERICAN TOWER CORP | AMT | 03027X100 | $1.4M | 0.32% | 8,261 | SH |
| 47 | DYNATRACE INC | DT | 268150109 | $1.3M | 0.32% | 30,247 | SH |
| 48 | VANGUARD INDEX FDS | VOT | 922908538 | $1.3M | 0.30% | 4,132 | SH |
| 49 | VANGUARD INDEX FDS | VB | 922908751 | $1.2M | 0.29% | 4,048 | SH |
| 50 | MORGAN STANLEY | MS | 617446448 | $1.2M | 0.28% | 5,596 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-13 | $416.2M | 80 | 0000918893-26-000006 |
| 2026-03-31 | 2026-05-13 | $382.3M | 76 | 0000918893-26-000004 |
| 2025-12-31 | 2026-02-13 | $432.2M | 80 | 0000918893-26-000002 |
| 2025-09-30 | 2025-11-13 | $437.9M | 78 | 0000918893-25-000010 |