CIK: 0001420816
Total reported value
$1.4B
Reporting period: 2026-06-30 · Number of holdings: 57
Telemark Asset Management, LLC disclosed 57 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $1.4B and a quarterly turnover rate of 32.0%.
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Telemark Asset Management, LLC's disclosed holdings carry a Herfindahl concentration index of 0.031 — mathematically equivalent to about 33 equally-sized positions, well below its 57 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes are fairly uniform across the portfolio (a coefficient of variation of 0.87), suggesting a disciplined, rules-based approach to how much capital goes into each idea.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
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Trim CCJ
0.0% -$6.1M
Trim HAL
0.0% -$6.0M
Add MRNA
+40.0% $23.6M
New buy ODFL
Trim NVDA
0.0% $15.4M
Sold out CAMT
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | NVDA | Nvidia CORP | Stock-Tech | 8.67% | -1.00% | — | |
| 2 | CCJ | Cameco CORP | Stock-Energy | 6.62% | -2.42% | — | |
| 3 | NOVT | Novanta Inc | Stock-Other | 4.98% | +0.89% | +13.33% | |
| 4 | HEI | Heico CORP | Stock-Industrials | 3.60% | +0.05% | — | |
| 5 | MRNA | Moderna Inc | Stock-Healthcare | 3.54% | +1.19% | +40.00% | |
| 6 | TSM | Taiwan Semiconductor-sp Adr | Stock-Tech | 3.45% | +0.33% | — | |
| 7 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 3.44% | -0.41% | — | |
| 8 | GLW | Corning Inc | Stock-Tech | 3.05% | +0.54% | -17.50% | |
| 9 | HAL | Halliburton Co | Stock-Energy | 2.94% | -1.39% | — | |
| 10 | TER | Teradyne Inc | Stock-Tech | 2.62% | +0.70% | +7.14% | |
| 11 | WCN | Waste Connections Inc | Stock-Industrials | 2.41% | +0.91% | +100.00% | |
| 12 | HEI-A | Heico Corp-class A | Stock-Other | 2.33% | -0.11% | — | |
| 13 | CAT | Caterpillar Inc | Stock-Industrials | 2.31% | +0.35% | — | |
| 14 | DOCN | Digitalocean Holdings Inc | Stock-Tech | 2.27% | +0.68% | — | |
| 15 | KOPN | Kopin CORP | Stock-Other | 2.27% | +0.81% | — | |
| 16 | CLH | Clean Harbors Inc | Stock-Industrials | 2.16% | -0.49% | — | |
| 17 | PLTR | Palantir Technologies Inc-a | Stock-Tech | 2.11% | -0.59% | +25.00% | |
| 18 | SLB | Slb LTD | Stock-Energy | 2.02% | -0.83% | — | |
| 19 | ADI | Analog Devices Inc | Stock-Tech | 2.01% | -0.05% | — | |
| 20 | AMSC | American Superconductor CORP | Stock-Other | 1.80% | -0.08% | — | |
| 21 | TXN | Texas Instruments Inc | Stock-Tech | 1.72% | +0.28% | — | |
| 22 | BKR | Baker Hughes Co | Stock-Energy | 1.60% | -0.66% | — | |
| 23 | AMAT | Applied Materials Inc | Stock-Tech | 1.57% | +0.31% | -25.00% | |
| 24 | FNV | Franco-nevada CORP | Stock-Materials | 1.51% | -0.77% | — | |
| 25 | ALNT | Allient Inc | Stock-Other | 1.49% | +0.67% | +33.33% | |
| 26 | ASML | ASML Holding N.V. | Stock-Tech | 1.44% | +0.22% | — | |
| 27 | ALM | Almonty Industries Inc | Stock-Other | 1.44% | -0.17% | — | |
| 28 | ANDG | Andersen Group Inc - A | Stock-Other | 1.36% | +0.10% | — | |
| 29 | MOD | Modine Manufacturing Co | Stock-Consumer Disc | 1.35% | -0.25% | -12.50% | |
| 30 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 1.29% | -0.04% | — | |
| 31 | GRMN | Garmin Ltd. | Stock-Tech | 1.29% | +0.22% | +50.00% | |
| 32 | LRCX | Lam Research CORP | Stock-Tech | 1.25% | +0.26% | -20.00% | |
| 33 | META | Meta Platforms Inc-class A | Stock-Comm Services | 1.22% | -0.37% | — | |
| 34 | LPTH | Lightpath Technologies Inc-a | Stock-Other | 1.21% | +0.85% | +166.23% | |
| 35 | BWXT | Bwx Technologies Inc | Stock-Industrials | 1.13% | -0.76% | -20.00% | |
| 36 | ODFL | Old Dominion Freight Line | Stock-Industrials | 1.10% | +1.10% | NEW | |
| 37 | BV | Brightview Holdings Inc | Stock-Other | 0.87% | -0.06% | — | |
| 38 | QBTS | D-wave Quantum Inc | Stock-Tech | 0.87% | +0.20% | — | |
| 39 | NXT | Nextpower Inc-cl A | Stock-Tech | 0.86% | -0.25% | — | |
| 40 | AXON | Axon Enterprise Inc | Stock-Industrials | 0.81% | +0.02% | — | |
| 41 | BDSX | Biodesix Inc | Stock-Other | 0.80% | +0.14% | — | |
| 42 | ✓ | Stock-Other | 0.77% | -0.22% | — | ||
| 43 | TWLO | Twilio Inc - A | Stock-Tech | 0.75% | +0.17% | — | |
| 44 | APP | Applovin Corp-class A | Stock-Tech | 0.74% | — | — | |
| 45 | SHOP | Shopify Inc - Class A | Stock-Tech | 0.74% | -0.25% | — | |
| 46 | TRMB | Trimble Inc | Stock-Tech | 0.74% | -0.47% | — | |
| 47 | HLMN | Hillman Solutions CORP | Stock-Other | 0.67% | -0.06% | +15.79% | |
| 48 | ORA | Ormat Technologies Inc | Stock-Utilities | 0.63% | -0.20% | — | |
| 49 | CDXS | Codexis Inc | Stock-Other | 0.63% | +0.05% | — | |
| 50 | ROG | Rogers CORP | Stock-Other | 0.59% | +0.59% | NEW |
Performance for Q3 2026
-2.1%
Performance Last 4 Quarters
+24.3%
| Period | Holdings | Total value | Stability | Top holdings | |
|---|---|---|---|---|---|
| 2026 Q2 | 57 | $1.4B | 32 | ||
| 2026 Q1 | 53 | $1.1B | 52 | ||
| 2025 Q4 | 56 | $1.0B | 46 | ||
| 2025 Q3 | 47 | $1.1B | 49 | ||
| 2025 Q2 | 49 | $1.1B | 0 | ||
| 2025 Q1 | 47 | $764.3M | 100 | ||
| 2024 Q4 | 54 | $1.0B | 0 | ||
| 2024 Q3 | 56 | $990.3M | 0 | ||
| 2024 Q2 | 58 | $1.1B | 0 | ||
| 2024 Q1 | 63 | $967.7M | 0 | ||
| 2023 Q4 | 47 | $671.4M | 0 | ||
| 2023 Q3 | 48 | $659.1M | 0 | ||
| 2023 Q2 | 49 | $737.2M | 0 | ||
| 2023 Q1 | 43 | $673.3M | 0 | ||
| 2022 Q4 | 38 | $659.4M | 0 | ||
| 2022 Q3 | 39 | $637.0M | 0 | ||
| 2022 Q2 | 39 | $591.2M | 0 | ||
| 2022 Q1 | 55 | $1.1B | 0 | ||
| 2021 Q4 | 52 | $1.4B | 0 | ||
| 2021 Q3 | 56 | $1.4B | 0 | ||
| 2021 Q2 | 68 | $1.3B | 100 | ||
| 2021 Q1 | 64 | $1.2B | 58 | ||
| 2020 Q4 | 52 | $964.5M | 65 | ||
| 2020 Q3 | 59 | $827.2M | 55 | ||
| 2020 Q2 | 56 | $631.7M | 68 | ||
| 2020 Q1 | 46 | $419.2M | 94 | ||
| 2019 Q4 | 50 | $690.0M | 61 | ||
| 2019 Q3 | 38 | $639.4M | 65 | ||
| 2019 Q2 | 41 | $872.0M | 67 | ||
| 2019 Q1 | 37 | $791.6M | 67 | ||
| 2018 Q4 | 24 | $486.8M | 89 | ||
| 2018 Q3 | 39 | $802.4M | 58 | ||
| 2018 Q2 | 55 | $794.6M | 71 | ||
| 2018 Q1 | 57 | $685.4M | 53 | ||
| 2017 Q4 | 41 | $510.1M | 61 | ||
| 2017 Q3 | 43 | $486.4M | 40 | ||
| 2017 Q2 | 43 | $462.8M | 49 | ||
| 2017 Q1 | 44 | $424.8M | 55 | ||
| 2016 Q4 | 45 | $458.2M | 85 | ||
| 2016 Q3 | 36 | $482.1M | 34 | ||
| 2016 Q2 | 34 | $434.7M | 55 | ||
| 2016 Q1 | 31 | $403.8M | 81 | ||
| 2015 Q4 | 27 | $426.9M | 61 | ||
| 2015 Q3 | 21 | $326.9M | 87 | ||
| 2015 Q2 | 31 | $378.8M | 48 | ||
| 2015 Q1 | 27 | $357.9M | 52 | ||
| 2014 Q4 | 30 | $339.1M | 48 | ||
| 2014 Q3 | 37 | $374.1M | 63 | ||
| 2014 Q2 | 43 | $365.7M | 86 | ||
| 2014 Q1 | 45 | $396.7M | 68 | ||
| 2013 Q4 | 56 | $403.8M | 52 | ||
| 2013 Q3 | 50 | $335.9M | 99 | ||
| 2013 Q2 | 39 | $263.0M | — |
Telemark Asset Management, LLC's most significant position changes for 2026-06-30: New buy: Old Dominion Freight Line (ODFL); Sold out: Camtek Ltd. (CAMT); New buy: Rogers CORP (ROG); New buy: Flex Ltd. (FLEX); New buy: Knight-swift Transportation (KNX).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | MRNA | Moderna Inc | +1.2% | +40.00% | Add |
| 2 | ODFL | Old Dominion Freight Line | +1.1% | NEW | New buy |
| 3 | WCN | Waste Connections Inc | +0.9% | +100.00% | Add |
| 4 | NOVT | Novanta Inc | +0.9% | +13.33% | Add |
| 5 | LPTH | Lightpath Technologies Inc-a | +0.9% | +166.23% | Add |
| 6 | KOPN | Kopin CORP | +0.8% | — | Unchanged |
| 7 | TER | Teradyne Inc | +0.7% | +7.14% | Add |
| 8 | DOCN | Digitalocean Holdings Inc | +0.7% | — | Unchanged |
| 9 | ALNT | Allient Inc | +0.7% | +33.33% | Add |
| 10 | ROG | Rogers CORP | +0.6% | NEW | New buy |
| 11 | FLEX | Flex Ltd. | +0.6% | NEW | New buy |
| 12 | KNX | Knight-swift Transportation | +0.6% | NEW | New buy |
| 13 | GLW | Corning Inc | +0.5% | -17.50% | Trim |
| 14 | CAT | Caterpillar Inc | +0.4% | — | Unchanged |
| 15 | TSM | Taiwan Semiconductor-sp Adr | +0.3% | — | Unchanged |
| 16 | PTEN | Patterson-uti Energy Inc | +0.3% | NEW | New buy |
| 17 | HLIO | Helios Technologies Inc | +0.3% | NEW | New buy |
| 18 | AMAT | Applied Materials Inc | +0.3% | -25.00% | Trim |
| 19 | TXN | Texas Instruments Inc | +0.3% | — | Unchanged |
| 20 | LRCX | Lam Research CORP | +0.3% | -20.00% | Trim |
| 21 | ASML | ASML Holding N.V. | +0.2% | — | Unchanged |
| 22 | GRMN | Garmin Ltd. | +0.2% | +50.00% | Add |
| 23 | QBTS | D-wave Quantum Inc | +0.2% | — | Unchanged |
| 24 | TWLO | Twilio Inc - A | +0.2% | — | Unchanged |
| 25 | BDSX | Biodesix Inc | +0.1% | — | Unchanged |
| 26 | ASPN | Aspen Aerogels Inc | +0.1% | — | Unchanged |
| 27 | ANDG | Andersen Group Inc - A | +0.1% | — | Unchanged |
| 28 | HEI | Heico CORP | +0.1% | — | Unchanged |
| 29 | CDXS | Codexis Inc | +0.1% | — | Unchanged |
| 30 | AXON | Axon Enterprise Inc | 0% | — | Unchanged |
| 31 | APP | Applovin Corp-class A | — | — | Unchanged |
| 32 | GOOGL | Alphabet Inc-cl A | 0% | — | Unchanged |
| 33 | ADI | Analog Devices Inc | -0.1% | — | Unchanged |
| 34 | BV | Brightview Holdings Inc | -0.1% | — | Unchanged |
| 35 | HLMN | Hillman Solutions CORP | -0.1% | +15.79% | Add |
| 36 | AMSC | American Superconductor CORP | -0.1% | — | Unchanged |
| 37 | HEI-A | Heico Corp-class A | -0.1% | — | Unchanged |
| 38 | ALM | Almonty Industries Inc | -0.2% | — | Unchanged |
| 39 | OVV | Ovintiv Inc | -0.2% | — | Unchanged |
| 40 | NXE | Nexgen Energy LTD | -0.2% | — | Unchanged |
| 41 | ORA | Ormat Technologies Inc | -0.2% | — | Unchanged |
| 42 | ✓ | -0.2% | — | Unchanged | |
| 43 | MOD | Modine Manufacturing Co | -0.3% | -12.50% | Trim |
| 44 | SHOP | Shopify Inc - Class A | -0.3% | — | Unchanged |
| 45 | NXT | Nextpower Inc-cl A | -0.3% | — | Unchanged |
| 46 | EPAC | Enerpac Tool Group CORP | -0.3% | EXIT | Sold out |
| 47 | META | Meta Platforms Inc-class A | -0.4% | — | Unchanged |
| 48 | AMZN | Amazon.com Inc | -0.4% | — | Unchanged |
| 49 | TRMB | Trimble Inc | -0.5% | — | Unchanged |
| 50 | CLH | Clean Harbors Inc | -0.5% | — | Unchanged |
Telemark Asset Management, LLC returned an annualized 18.9% over the trailing 36 months — underperforming the S&P 500 by 10.6 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 1.54 (more volatile than the market) and a 53% quarterly batting average against the index.
Its portfolio is broadly diversified and moderately active, with 47.3% of the portfolio concentrated in Information Technology.
Its turnover score has risen from 0 to 32 over the past 4 quarters — a shift toward more active trading.
It has added to its GLW position over the past two quarters (+$24.6M, now $42.1M), while trimming TRMB over the same stretch (-$13.3M, still holding $10.2M).
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