CIK: 0001054554
Total reported value
$1.5B
Reporting period: 2026-03-31 · Number of holdings: 181
OAK RIDGE INVESTMENTS LLC disclosed 181 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $1.5B and a quarterly turnover rate of 23.9%.
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Oak Ridge Investments LLC's disclosed holdings carry a Herfindahl concentration index of 0.046 — mathematically equivalent to about 22 equally-sized positions, well below its 181 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes vary widely across the portfolio (a coefficient of variation of 2.71), with a handful of outsized bets alongside many smaller positions.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Trim MSFT
-1.0% -$41.5M
Add HWM
+1030.4% $10.0M
Add ADI
+3043.7% $8.8M
Add KLAC
+6.4% $6.1M
Trim TDG
-55.8% -$8.0M
Add GEV
+1.1% $4.3M
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | NVDA | Nvidia CORP | Stock-Tech | 12.10% | +0.31% | +0.54% | |
| 2 | AAPL | Apple INC | Stock-Tech | 10.02% | +0.26% | +0.70% | |
| 3 | MSFT | Microsoft CORP | Stock-Tech | 8.57% | -1.80% | -1.03% | |
| 4 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 4.89% | +0.01% | +0.42% | |
| 5 | AMZN | Amazon.com INC | Stock-Consumer Disc | 4.81% | -0.13% | -0.96% | |
| 6 | AVGO | Broadcom INC | Stock-Tech | 4.67% | -0.16% | -1.01% | |
| 7 | LLY | Eli Lilly & Co | Stock-Healthcare | 4.02% | -0.26% | +0.56% | |
| 8 | META | Meta Platforms Inc-class A | Stock-Comm Services | 3.84% | -0.25% | -0.59% | |
| 9 | TSLA | Tesla INC | Stock-Consumer Disc | 2.29% | -0.13% | +4.72% | |
| 10 | KLAC | Kla CORP | Stock-Tech | 1.80% | +0.52% | +6.43% | |
| 11 | V | Visa Inc-class A Shares | Stock-Financials | 1.73% | -0.15% | -1.91% | |
| 12 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 1.55% | — | +3.09% | |
| 13 | NFLX | Netflix INC | Stock-Comm Services | 1.54% | — | +0.73% | |
| 14 | COST | Costco Wholesale CORP | Stock-Consumer Staples | 1.47% | +0.31% | +1.18% | |
| 15 | MA | Mastercard INC - A | Stock-Financials | 1.40% | -0.06% | +0.48% | |
| 16 | ORCL | Oracle CORP | Stock-Tech | 1.13% | -0.26% | -1.38% | |
| 17 | GEV | GE Vernova INC | Stock-Industrials | 1.11% | +0.36% | +1.12% | |
| 18 | CLS | Celestica INC | Stock-Tech | 1.02% | — | +3.19% | |
| 19 | ECL | Ecolab INC | Stock-Materials | 0.99% | — | +0.70% | |
| 20 | NET | Cloudflare INC - Class A | Stock-Tech | 0.89% | — | +0.50% | |
| 21 | PLTR | Palantir Technologies Inc-a | Stock-Tech | 0.87% | -0.10% | +0.43% | |
| 22 | PWR | Quanta Services INC | Stock-Industrials | 0.84% | +0.25% | +0.66% | |
| 23 | ORLY | O'reilly Automotive INC | Stock-Consumer Disc | 0.80% | — | -3.93% | |
| 24 | VRT | Vertiv Holdings Co-a | Stock-Industrials | 0.77% | +0.31% | +0.16% | |
| 25 | SYK | Stryker CORP | Stock-Healthcare | 0.74% | — | +1.03% | |
| 26 | BTSG | Brightspring Health Services | Stock-Other | 0.73% | — | +2.89% | |
| 27 | HWM | Howmet Aerospace INC | Stock-Industrials | 0.72% | +0.67% | +1030.41% | |
| 28 | UBER | Uber Technologies INC | Stock-Industrials | 0.68% | — | +4.76% | |
| 29 | CRWD | Crowdstrike Holdings INC - A | Stock-Tech | 0.67% | -0.06% | +0.77% | |
| 30 | COHR | Coherent CORP | Stock-Tech | 0.67% | +0.22% | +5.31% | |
| 31 | AZN | AstraZeneca PLC | Stock-Healthcare | 0.65% | +0.65% | NEW | |
| 32 | CAT | Caterpillar INC | Stock-Industrials | 0.64% | +0.64% | NEW | |
| 33 | ISRG | Intuitive Surgical INC | Stock-Healthcare | 0.61% | -0.07% | +0.77% | |
| 34 | ADI | Analog Devices INC | Stock-Tech | 0.60% | +0.59% | +3043.67% | |
| 35 | VIAV | Viavi Solutions INC | Stock-Tech | 0.59% | +0.27% | -10.22% | |
| 36 | APP | Applovin Corp-class A | Stock-Tech | 0.53% | -0.25% | +5.71% | |
| 37 | INTU | Intuit INC | Stock-Tech | 0.49% | -0.19% | +0.49% | |
| 38 | EXLS | Exlservice Holdings INC | Stock-Tech | 0.48% | -0.14% | -0.20% | |
| 39 | TTWO | Take-two Interactive Softwre | Stock-Comm Services | 0.47% | -0.09% | -0.60% | |
| 40 | AXON | Axon Enterprise INC | Stock-Industrials | 0.46% | -0.10% | +0.98% | |
| 41 | SPOT | Spotify Technology S.A. | Stock-Comm Services | 0.46% | — | +0.16% | |
| 42 | ENSG | Ensign Group Inc/the | Stock-Healthcare | 0.39% | — | +0.92% | |
| 43 | KLIC | Kulicke & Soffa Industries | Stock-Tech | 0.37% | +0.37% | NEW | |
| 44 | ROAD | Construction Partners Inc-a | Stock-Industrials | 0.36% | — | +1.12% | |
| 45 | SHOP | Shopify INC - Class A | Stock-Tech | 0.35% | — | +3.28% | |
| 46 | DDOG | Datadog INC - Class A | Stock-Tech | 0.34% | — | +5.20% | |
| 47 | ECG | Everus Construction Group | Stock-Industrials | 0.34% | — | +1.14% | |
| 48 | TDG | Transdigm Group INC | Stock-Industrials | 0.33% | -0.46% | -55.77% | |
| 49 | SNOW | Snowflake INC | Stock-Tech | 0.33% | -0.11% | -0.51% | |
| 50 | PLMR | Palomar Holdings INC | Stock-Financials | 0.31% | -0.10% | -22.60% |
Performance for Q3 2026
+1.2%
Performance Last 4 Quarters
+17.2%
Based on 80% of reported portfolio value with available pricing
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 181 | $1.5B | 24 | |
| 2025-12-31 | 178 | $1.6B | 23 | |
| 2025-09-30 | 179 | $1.5B | 39 | |
| 2025-06-30 | 171 | $1.4B | 0 | |
| 2025-03-31 | 163 | $1.2B | 100 | |
| 2024-12-31 | 167 | $1.3B | 0 | |
| 2024-09-30 | 152 | $1.1B | 0 | |
| 2024-06-30 | 146 | $1.0B | 0 | |
| 2024-03-31 | 143 | $991.0M | 0 | |
| 2023-12-31 | 148 | $869.1M | 0 | |
| 2023-09-30 | 142 | $783.6M | 0 | |
| 2023-06-30 | 147 | $811.0M | 0 | |
| 2023-03-31 | 147 | $738.9M | 0 | |
| 2022-12-31 | 150 | $671.5M | 0 | |
| 2022-09-30 | 153 | $659.8M | 0 | |
| 2022-06-30 | 151 | $687.1M | 0 | |
| 2022-03-31 | 157 | $900.2M | 0 | |
| 2021-12-31 | 301 | $1.2B | 0 | |
| 2021-09-30 | 308 | $1.1B | 0 | |
| 2021-06-30 | 304 | $1.1B | 97 | |
| 2021-03-31 | 316 | $11.0B | 0 | |
| 2020-12-31 | 313 | $1.1B | 23 | |
| 2020-09-30 | 310 | $1.3B | 24 | |
| 2020-06-30 | 299 | $1.2B | 31 | |
| 2020-03-31 | 287 | $976.8M | 50 | |
| 2019-12-31 | 301 | $1.4B | 18 | |
| 2019-09-30 | 299 | $1.3B | 26 | |
| 2019-06-30 | 279 | $1.4B | 31 | |
| 2019-03-31 | 168 | $1.6B | 29 | |
| 2018-12-31 | 167 | $1.4B | 35 | |
| 2018-09-30 | 161 | $1.8B | 17 | |
| 2018-06-30 | 156 | $1.8B | 20 | |
| 2018-03-31 | 159 | $1.8B | 34 | |
| 2017-12-31 | 164 | $2.1B | 28 | |
| 2017-09-30 | 159 | $2.5B | 44 | |
| 2017-06-30 | 149 | $3.1B | 21 | |
| 2017-03-31 | 141 | $3.0B | 33 | |
| 2016-12-31 | 147 | $3.1B | 34 | |
| 2016-09-30 | 244 | $3.9B | 25 | |
| 2016-06-30 | 240 | $3.9B | 22 | |
| 2016-03-31 | 234 | $4.0B | 22 | |
| 2015-12-31 | 241 | $4.2B | 26 | |
| 2015-09-30 | 244 | $4.2B | 31 | |
| 2015-06-30 | 248 | $4.7B | 23 | |
| 2015-03-31 | 256 | $4.5B | 34 | |
| 2014-12-31 | 250 | $4.2B | 25 | |
| 2014-09-30 | 247 | $3.8B | 34 | |
| 2014-06-30 | 250 | $4.2B | 17 | |
| 2014-03-31 | 245 | $4.0B | 22 | |
| 2013-12-31 | 236 | $3.8B | 21 | |
| 2013-09-30 | 229 | $3.6B | 25 | |
| 2013-06-30 | 224 | $3.2B | 0 |
Oak Ridge Investments LLC's most significant position changes for 2026-03-31: New buy: AstraZeneca PLC (AZN); New buy: Caterpillar INC (CAT); Sold out: Verisk Analytics INC (VRSK); Sold out: Servicenow INC (NOW); Sold out: Astrazeneca Plc-spons Adr (AZNN).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | HWM | Howmet Aerospace INC | +0.7% | +1030.41% | Add |
| 2 | ADI | Analog Devices INC | +0.6% | +3043.67% | Add |
| 3 | KLAC | Kla CORP | +0.5% | +6.43% | Add |
| 4 | GEV | GE Vernova INC | +0.4% | +1.12% | Add |
| 5 | NVDA | Nvidia CORP | +0.3% | +0.54% | Add |
| 6 | VRT | Vertiv Holdings Co-a | +0.3% | +0.16% | Add |
| 7 | COST | Costco Wholesale CORP | +0.3% | +1.18% | Add |
| 8 | VIAV | Viavi Solutions INC | +0.3% | -10.22% | Trim |
| 9 | AAPL | Apple INC | +0.3% | +0.70% | Add |
| 10 | PWR | Quanta Services INC | +0.3% | +0.66% | Add |
| 11 | COHR | Coherent CORP | +0.2% | +5.31% | Add |
| 12 | GOOG | Alphabet Inc-cl C | 0% | +0.42% | Add |
| 13 | MA | Mastercard INC - A | -0.1% | +0.48% | Add |
| 14 | CRWD | Crowdstrike Holdings INC - A | -0.1% | +0.77% | Add |
| 15 | ISRG | Intuitive Surgical INC | -0.1% | +0.77% | Add |
| 16 | TTWO | Take-two Interactive Softwre | -0.1% | -0.60% | Trim |
| 17 | PLTR | Palantir Technologies Inc-a | -0.1% | +0.43% | Add |
| 18 | AXON | Axon Enterprise INC | -0.1% | +0.98% | Add |
| 19 | PLMR | Palomar Holdings INC | -0.1% | -22.60% | Trim |
| 20 | SNOW | Snowflake INC | -0.1% | -0.51% | Trim |
| 21 | AMZN | Amazon.com INC | -0.1% | -0.96% | Trim |
| 22 | TSLA | Tesla INC | -0.1% | +4.72% | Add |
| 23 | EXLS | Exlservice Holdings INC | -0.1% | -0.20% | Trim |
| 24 | ZS | Zscaler INC | -0.1% | -14.54% | Trim |
| 25 | V | Visa Inc-class A Shares | -0.2% | -1.91% | Trim |
| 26 | AVGO | Broadcom INC | -0.2% | -1.01% | Trim |
| 27 | INTU | Intuit INC | -0.2% | +0.49% | Add |
| 28 | META | Meta Platforms Inc-class A | -0.3% | -0.59% | Trim |
| 29 | APP | Applovin Corp-class A | -0.3% | +5.71% | Add |
| 30 | LLY | Eli Lilly & Co | -0.3% | +0.56% | Add |
| 31 | ORCL | Oracle CORP | -0.3% | -1.38% | Trim |
| 32 | TDG | Transdigm Group INC | -0.5% | -55.77% | Trim |
| 33 | MSFT | Microsoft CORP | -1.8% | -1.03% | Trim |
| 34 | AZN | AstraZeneca PLC | — | NEW | New buy |
| 35 | CAT | Caterpillar INC | — | NEW | New buy |
| 36 | VRSK | Verisk Analytics INC | — | EXIT | Sold out |
| 37 | NOW | Servicenow INC | — | EXIT | Sold out |
| 38 | AZNN | Astrazeneca Plc-spons Adr | — | EXIT | Sold out |
| 39 | IWO | Ishares Russell 2000 Growth | — | EXIT | Sold out |
| 40 | ✓ | Cyberark Software LTD | — | EXIT | Sold out |
| 41 | RDDT | Reddit Inc-cl A | — | EXIT | Sold out |
| 42 | URI | United Rentals INC | — | EXIT | Sold out |
| 43 | KLIC | Kulicke & Soffa Industries | — | NEW | New buy |
| 44 | BE | Bloom Energy Corp- A | — | NEW | New buy |
| 45 | SNEX | Stonex Group INC | — | NEW | New buy |
| 46 | MOD | Modine Manufacturing Co | — | NEW | New buy |
| 47 | LOPE | Grand Canyon Education INC | — | EXIT | Sold out |
| 48 | QTWO | Q2 Holdings INC | — | EXIT | Sold out |
| 49 | EXPE | Expedia Group INC | — | EXIT | Sold out |
| 50 | POWL | Powell Industries INC | — | NEW | New buy |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-04-30 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-01-23 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-10-29 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-07-25 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-05-13 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-01-15 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-10-28 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-10-28 | Amendment | View on EDGAR |
| 2024-06-30 | 2024-07-16 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-05-01 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-01-16 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-10-30 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-08-07 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-04-14 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-01-24 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-11-08 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-07-28 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-04-22 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-02-01 | 13F-HR | View on EDGAR |
| 2021-09-30 | 2021-11-05 | 13F-HR | View on EDGAR |
| 2021-06-30 | 2021-07-30 | 13F-HR | View on EDGAR |
| 2021-03-31 | 2021-05-12 | Amendment | View on EDGAR |
| 2021-03-31 | 2021-05-04 | 13F-HR | View on EDGAR |
| 2020-12-31 | 2021-02-03 | 13F-HR | View on EDGAR |
| 2020-09-30 | 2020-11-12 | 13F-HR | View on EDGAR |
| 2020-06-30 | 2020-08-05 | 13F-HR | View on EDGAR |
| 2020-03-31 | 2020-05-13 | 13F-HR | View on EDGAR |
| 2019-12-31 | 2020-02-05 | 13F-HR | View on EDGAR |
| 2019-09-30 | 2019-11-07 | 13F-HR | View on EDGAR |
| 2019-06-30 | 2019-08-14 | 13F-HR | View on EDGAR |
| 2019-03-31 | 2019-05-09 | 13F-HR | View on EDGAR |
| 2018-12-31 | 2019-02-11 | 13F-HR | View on EDGAR |
| 2018-09-30 | 2018-11-07 | 13F-HR | View on EDGAR |
| 2018-06-30 | 2018-08-13 | 13F-HR | View on EDGAR |
| 2018-03-31 | 2018-05-14 | 13F-HR | View on EDGAR |
| 2017-12-31 | 2018-02-13 | 13F-HR | View on EDGAR |
| 2017-09-30 | 2017-11-07 | 13F-HR | View on EDGAR |
| 2017-06-30 | 2017-08-10 | 13F-HR | View on EDGAR |
| 2017-03-31 | 2017-05-15 | 13F-HR | View on EDGAR |
| 2016-12-31 | 2017-02-13 | 13F-HR | View on EDGAR |
| 2016-09-30 | 2016-11-07 | 13F-HR | View on EDGAR |
| 2016-06-30 | 2016-08-04 | 13F-HR | View on EDGAR |
| 2016-03-31 | 2016-07-13 | Amendment | View on EDGAR |
| 2016-03-31 | 2016-05-09 | 13F-HR | View on EDGAR |
| 2015-12-31 | 2016-02-01 | 13F-HR | View on EDGAR |
| 2015-09-30 | 2015-11-03 | 13F-HR | View on EDGAR |
| 2015-06-30 | 2015-08-04 | 13F-HR | View on EDGAR |
| 2015-03-31 | 2015-05-12 | 13F-HR | View on EDGAR |
| 2014-12-31 | 2015-02-04 | 13F-HR | View on EDGAR |
| 2014-09-30 | 2014-11-10 | 13F-HR | View on EDGAR |
| 2014-06-30 | 2014-08-04 | 13F-HR | View on EDGAR |
| 2014-03-31 | 2014-05-05 | 13F-HR | View on EDGAR |
| 2013-12-31 | 2014-02-03 | 13F-HR | View on EDGAR |
| 2013-09-30 | 2013-11-04 | 13F-HR | View on EDGAR |
| 2013-06-30 | 2013-08-01 | 13F-HR | View on EDGAR |
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