OAK RIDGE INVESTMENTS LLC
Q3 2026 Form 13-F

CHICAGO, ILLINOIS
CIK 0001054554 · CRD 107066 · SEC-registered investment adviser
$1.7B Reported Value Total

OAK RIDGE INVESTMENTS, LLC reports 3,920 total accounts under management (AUM). There are 3,920 discretionary accounts valued at $1,704,405,756, and 0 non-discretionary accounts.

Source: Form ADV filed * Note that certain holdings are exempt from Form 13-F reporting, so the AUM totals may be greater than the Form 13-F total.
SEC Registered Discretionary Manager
Firm Brochure (Part 2A)
Private funds (Form ADV)
1 fund · $8.4M gross asset value
Other: $8.4M
Source: Form ADV filed 2026-05-04
Reported value
$1.7B
Quarter over quarter
+0.1%
Holdings
173
Top-10 concentration
53.9%

Filing Structure

Reports holdings for

Holdings reported by

  • Argent Wealth Management LLC (not a 13F filer in our records) · Q4 2019 – Q2 2020 · declared by one filing
  • ALGERT GLOBAL LLC · Q4 2015 – Q1 2019 · declared by one filing

Key People

Form ADV owners & control persons
David Michael Klaskin
TRUSTEE
Robert Gregg Mcvicker
MANAGER, MEMBER
John Kane Brinckerhoff
COO
Q2 2026

Coverage begins with the second quarter of 2013. Earlier quarters are not shown while their accuracy is being verified.

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Q3 2026 13F filing summary

Period of report September 30, 2026
Filed October 30, 2026
Form 13F-HR
Reported value $1.7B
Positions 173
Change in reported value -4.9%
New positions 15
Exited positions 12
Position turnover 14.6%
Top-10 concentration 53.9%

13F filings by quarter

Quarter Positions Value
Q3 2026 13F
Filed Oct 30, 2026
 173 $1.7B
Q2 2026 13F
Filed Jul 21, 2026
 170 $1.8B
Q1 2026 13F
Filed Apr 30, 2026
 181 $1.5B
Q4 2025 13F
Filed Jan 23, 2026
 178 $1.6B
Q3 2025 13F
Filed Oct 29, 2025
 179 $1.5B
Q2 2025 13F
Filed Jul 25, 2025
 171 $1.4B
Q1 2025 13F
Filed May 13, 2025
 163 $1.2B
Q4 2024 13F
Filed Jan 15, 2025
 167 $1.3B
Q3 2024 13F
Filed Oct 28, 2024
 152 $1.1B
Q2 2024 13F
Filed Jul 16, 2024
 146 $1.0B
Q1 2024 13F
Filed May 1, 2024
 143 $991.0M
Q4 2023 13F
Filed Jan 16, 2024
 148 $869.1M
Q3 2023 13F
Filed Oct 30, 2023
 142 $783.6M
Q2 2023 13F
Filed Aug 7, 2023
 147 $811.0M
Q1 2023 13F
Filed Apr 14, 2023
 147 $738.9M
Q4 2022 13F
Filed Jan 24, 2023
 150 $671.5M
Q3 2022 13F
Filed Nov 8, 2022
 153 $659.8M
Q2 2022 13F
Filed Jul 28, 2022
 151 $687.1M
Q1 2022 13F
Filed Apr 22, 2022
 157 $900.2M
Q4 2021 13F
Filed Feb 1, 2022
 167 $1.2B

34 earlier quarters on file — choose one from the quarter menu above.

Top 20 holdings · Q3 2026

# Holding Reported value % of portfolio
1 NVDA NVIDIA CORPORATION $226.8M 13.5%
2 GOOG ALPHABET INC $133.3M 7.93%
3 AAPL APPLE INC $113.7M 6.77%
4 MSFT MICROSOFT CORP $75.0M 4.46%
5 AVGO BROADCOM INC $73.3M 4.36%
6 LLY ELI LILLY & CO $71.1M 4.23%
7 META META PLATFORMS INC $69.1M 4.11%
8 AMD ADVANCED MICRO DEVICES INC $55.8M 3.32%
9 MU MICRON TECHNOLOGY INC $47.2M 2.81%
10 TSLA TESLA INC $41.1M 2.44%
11 V VISA INC $28.7M 1.71%
12 GOOGL ALPHABET INC $27.6M 1.64%
13 CRWD CROWDSTRIKE HLDGS INC $25.9M 1.54%
14 AMZN AMAZON COM INC $24.5M 1.46%
15 LRCX LAM RESEARCH CORP $23.4M 1.39%
16 KLAC KLA CORP $22.2M 1.32%
17 MA MASTERCARD INCORPORATED $21.6M 1.29%
18 NET CLOUDFLARE INC $20.1M 1.19%
19 COST COSTCO WHOLESALE CORPORATION $19.2M 1.14%
20 GEV GE VERNOVA INC $17.8M 1.06%

Values as reported on the Q3 2026 Form 13F. Every position is in the holdings table below.

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