Institutional Manager · CIK 0001054554
OAK RIDGE INVESTMENTS LLC
Chicago, IL · File #028-06668
Latest AUM
$1.65B
Positions
178
Top-10 Concentration
67.6%
Filings
13
Sector Allocation
Filing History
View all filings →- 13F HOLDINGS REPORTQ/E Dec 2025178 pos · $1.65B
- 13F HOLDINGS REPORTQ/E Sep 2025179 pos · $1.55B
- 13F HOLDINGS REPORTQ/E Jun 2025171 pos · $1.39B
- 13F HOLDINGS REPORTQ/E Mar 2025163 pos · $1.20B
- 13F HOLDINGS REPORTQ/E Dec 2024167 pos · $1.27B
- 13F HOLDINGS REPORT (Amended)Q/E Sep 2024146 pos · $1.05B
- 13F HOLDINGS REPORTQ/E Sep 2024152 pos · $1.15B
- 13F HOLDINGS REPORTQ/E Jun 2024146 pos · $1.05B
- 13F HOLDINGS REPORTQ/E Mar 2024143 pos · $991.0M
- 13F HOLDINGS REPORTQ/E Dec 2023142 pos · $783.6M
- 13F HOLDINGS REPORTQ/E Sep 2023147 pos · $811.0M
- 13F HOLDINGS REPORTQ/E Jun 2023147 pos · $738.9M
- 13F HOLDINGS REPORTQ/E Mar 2023150 pos · $671.5M
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | NVIDIA CORPORATION | NVDA | 1,043,317 | $194.6M | 13.46% |
| 2 | MICROSOFT CORP | MSFT | 353,786 | $171.1M | 11.83% |
| 3 | APPLE INC | AAPL | 592,599 | $161.1M | 11.14% |
| 4 | AMAZON COM INC | AMZN | 352,857 | $81.4M | 5.63% |
| 5 | ALPHABET INC | GOOG | 256,717 | $80.6M | 5.57% |
| 6 | BROADCOM INC | AVGO | 230,433 | $79.8M | 5.52% |
| 7 | ELI LILLY & CO | LLY | 65,782 | $70.7M | 4.89% |
| 8 | META PLATFORMS INC | META | 102,185 | $67.5M | 4.67% |
| 9 | TESLA INC | TSLA | 88,813 | $39.9M | 2.76% |
| 10 | VISA INC | V | 88,244 | $30.9M | 2.14% |
| 11 | ALPHABET INC | GOOG | 79,096 | $24.8M | 1.71% |
| 12 | MASTERCARD INCORPORATED | MA | 42,168 | $24.1M | 1.66% |
| 13 | ORACLE CORP | ORCL-PD | 118,037 | $23.0M | 1.59% |
| 14 | NETFLIX INC | NFLX | 240,807 | $22.6M | 1.56% |
| 15 | KLA CORP | KLAC | 17,348 | $21.1M | 1.46% |
| 16 | COSTCO WHSL CORP NEW | 22160K105 | 22,117 | $19.1M | 1.32% |
| 17 | PALANTIR TECHNOLOGIES INC | PLTR | 89,659 | $15.9M | 1.10% |
| 18 | CELESTICA INC | CLS | 53,058 | $15.7M | 1.08% |
| 19 | ECOLAB INC | ECL | 56,083 | $14.7M | 1.02% |
| 20 | TRANSDIGM GROUP INC | TDG | 9,775 | $13.0M | 0.90% |