CIK: 0001714267
Total reported value
$557.9M
Reporting period: 2026-03-31 · Number of holdings: 43
THAMES CAPITAL MANAGEMENT LLC disclosed 43 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $557.9M and a quarterly turnover rate of 73.3%.
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Thames Capital Management LLC's disclosed holdings carry a Herfindahl concentration index of 0.034 — mathematically equivalent to about 29 equally-sized positions, close to its 43 actual disclosed holdings. Value is spread relatively evenly across the portfolio rather than concentrated in a handful of names.
Position sizes are fairly uniform across the portfolio (a coefficient of variation of 0.69), 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.
Add VRT
-7.7% $12.4M
Add GEV
-7.4% $8.4M
Trim STT
-48.0% -$16.6M
Add SNDK
0.0% $9.0M
Add TSM
0.0% $2.6M
Add FIX
+9.0% $5.3M
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | GEV | GE Vernova INC | Stock-Industrials | 7.88% | +2.71% | -7.45% | |
| 2 | VRT | Vertiv Holdings Co-a | Stock-Industrials | 7.42% | +3.20% | -7.70% | |
| 3 | TSM | Taiwan Semiconductor-sp Adr | Stock-Tech | 4.65% | +1.26% | — | |
| 4 | NVDA | Nvidia CORP | Stock-Tech | 3.63% | -0.95% | -31.17% | |
| 5 | HUT | Hut 8 CORP | Stock-Financials | 3.58% | +0.05% | -19.48% | |
| 6 | AGX | Argan INC | Stock-Industrials | 3.56% | +1.20% | -29.61% | |
| 7 | APH | Amphenol Corp-cl A | Stock-Tech | 3.30% | — | -4.61% | |
| 8 | FN | Fabrinet | Stock-Tech | 3.23% | +3.23% | NEW | |
| 9 | GE | General Electric | Stock-Industrials | 3.16% | — | — | |
| 10 | MA | Mastercard INC - A | Stock-Financials | 3.10% | -0.07% | -9.15% | |
| 11 | STT | State Street CORP | Stock-Financials | 3.09% | -1.83% | -47.98% | |
| 12 | MU | Micron Technology INC | Stock-Tech | 3.04% | +0.02% | -31.06% | |
| 13 | AAPL | Apple INC | Stock-Tech | 2.81% | — | — | |
| 14 | MKSI | Mks INC | Stock-Tech | 2.79% | +2.79% | NEW | |
| 15 | ONDS | Ondas INC | Stock-Tech | 2.62% | — | +1.10% | |
| 16 | SNDK | Sandisk CORP | Stock-Tech | 2.58% | +1.80% | — | |
| 17 | PRIM | Primoris Services CORP | Stock-Industrials | 2.56% | — | — | |
| 18 | META | Meta Platforms Inc-class A | Stock-Comm Services | 2.54% | -0.70% | -26.57% | |
| 19 | FIX | Comfort Systems USA INC | Stock-Industrials | 2.50% | +1.24% | +9.02% | |
| 20 | V | Visa Inc-class A Shares | Stock-Financials | 2.47% | -0.16% | -11.45% | |
| 21 | RKT | Rocket Cos Inc-class A | Stock-Financials | 2.38% | -0.26% | -0.68% | |
| 22 | COHR | Coherent CORP | Stock-Tech | 2.33% | +0.10% | -34.38% | |
| 23 | DOCN | Digitalocean Holdings INC | Stock-Tech | 2.24% | +2.24% | NEW | |
| 24 | AEIS | Advanced Energy Industries | Stock-Industrials | 2.21% | +2.21% | NEW | |
| 25 | WULF | Terawulf INC | Stock-Financials | 2.03% | +0.74% | +2.03% | |
| 26 | SOXL | Direx Dail Semi Bu 3x Et-usd | ETF-Other | 1.96% | +1.96% | NEW | |
| 27 | BKD | Brookdale Senior Living INC | Stock-Other | 1.86% | +1.03% | +42.63% | |
| 28 | AMPX | Amprius Technologies INC | Stock-Other | 1.59% | +0.99% | — | |
| 29 | LITE | Lumentum Holdings INC | Stock-Tech | 1.55% | +1.55% | NEW | |
| 30 | SPOT | Spotify Technology S.A. | Stock-Comm Services | 1.29% | -1.06% | -46.82% | |
| 31 | TMO | Thermo Fisher Scientific INC | Stock-Healthcare | 1.16% | — | — | |
| 32 | STRL | Sterling Infrastructure INC | Stock-Industrials | 1.14% | +1.14% | NEW | |
| 33 | AAOI | Applied Optoelectronics INC | Stock-Tech | 1.13% | +1.13% | NEW | |
| 34 | CLS | Celestica INC | Stock-Tech | 0.99% | — | — | |
| 35 | SIMO | Silicon Motion Technol-adr | Stock-Other | 0.93% | +0.93% | NEW | |
| 36 | AIP | Arteris INC | Stock-Other | 0.87% | — | — | |
| 37 | IREN | Iren LTD F | Stock-Other | 0.85% | +0.85% | NEW | |
| 38 | MTSI | Macom Technology Solutions H | Stock-Tech | 0.71% | +0.71% | NEW | |
| 39 | UBER | Uber Technologies INC | Stock-Industrials | 0.69% | -0.56% | -49.06% | |
| 40 | IDR | Idaho Strategic Resources In | Stock-Other | 0.53% | — | — | |
| 41 | QS | Quantumscape CORP | Stock-Consumer Disc | 0.42% | — | — | |
| 42 | JBL | Jabil INC | Stock-Tech | 0.42% | +0.42% | NEW | |
| 43 | TTI | Tetra Technologies INC | Stock-Other | 0.18% | — | — |
Performance for Q3 2026
-7.9%
Performance Last 4 Quarters
+20.6%
Based on 82% of reported portfolio value with available pricing
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 43 | $557.9M | 73 | |
| 2025-12-31 | 48 | $687.8M | 68 | |
| 2025-09-30 | 58 | $700.8M | 98 | |
| 2025-06-30 | 43 | $441.4M | 0 | |
| 2025-03-31 | 28 | $260.4M | 100 | |
| 2024-12-31 | 37 | $368.9M | 0 | |
| 2024-09-30 | 38 | $321.0M | 0 | |
| 2024-06-30 | 25 | $255.4M | 0 | |
| 2024-03-31 | 24 | $240.3M | 0 | |
| 2023-12-31 | 24 | $194.1M | 0 | |
| 2023-09-30 | 25 | $175.0M | 0 | |
| 2023-06-30 | 24 | $187.7M | 0 | |
| 2023-03-31 | 19 | $142.1M | 0 | |
| 2022-12-31 | 24 | $210.6M | 0 | |
| 2022-09-30 | 27 | $201.5M | 0 | |
| 2022-06-30 | 24 | $249.0M | 0 | |
| 2022-03-31 | 44 | $474.1M | 0 | |
| 2021-12-31 | 51 | $522.2M | 0 | |
| 2021-09-30 | 49 | $458.5M | 0 | |
| 2021-06-30 | 49 | $426.4M | 100 | |
| 2021-03-31 | 55 | $433.6M | 42 | |
| 2020-12-31 | 53 | $355.6M | 45 | |
| 2020-09-30 | 44 | $283.5M | 58 | |
| 2020-06-30 | 45 | $254.9M | 75 | |
| 2020-03-31 | 29 | $127.5M | 100 | |
| 2019-12-31 | 42 | $301.6M | 88 | |
| 2019-09-30 | 34 | $335.9M | 100 | |
| 2019-06-30 | 27 | $353.5M | 46 | |
| 2019-03-31 | 30 | $355.2M | 71 | |
| 2018-12-31 | 24 | $237.4M | 100 | |
| 2018-09-30 | 35 | $393.7M | 74 | |
| 2018-06-30 | 30 | $291.7M | 86 | |
| 2018-03-31 | 29 | $237.6M | 100 | |
| 2017-12-31 | 31 | $159.1M | — |
Thames Capital Management LLC's most significant position changes for 2026-03-31: Sold out: American Express Co (AXP); Sold out: Microsoft CORP (MSFT); Sold out: United Rentals INC (URI); New buy: Fabrinet (FN); Sold out: Citigroup INC (C).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | VRT | Vertiv Holdings Co-a | +3.2% | -7.70% | Trim |
| 2 | GEV | GE Vernova INC | +2.7% | -7.45% | Trim |
| 3 | SNDK | Sandisk CORP | +1.8% | — | Unchanged |
| 4 | TSM | Taiwan Semiconductor-sp Adr | +1.3% | — | Unchanged |
| 5 | FIX | Comfort Systems USA INC | +1.2% | +9.02% | Add |
| 6 | AGX | Argan INC | +1.2% | -29.61% | Trim |
| 7 | BKD | Brookdale Senior Living INC | +1% | +42.63% | Add |
| 8 | AMPX | Amprius Technologies INC | +1% | — | Unchanged |
| 9 | WULF | Terawulf INC | +0.7% | +2.03% | Add |
| 10 | COHR | Coherent CORP | +0.1% | -34.38% | Trim |
| 11 | HUT | Hut 8 CORP | +0.1% | -19.48% | Trim |
| 12 | MU | Micron Technology INC | 0% | -31.06% | Trim |
| 13 | MA | Mastercard INC - A | -0.1% | -9.15% | Trim |
| 14 | V | Visa Inc-class A Shares | -0.2% | -11.45% | Trim |
| 15 | RKT | Rocket Cos Inc-class A | -0.3% | -0.68% | Trim |
| 16 | UBER | Uber Technologies INC | -0.6% | -49.06% | Trim |
| 17 | META | Meta Platforms Inc-class A | -0.7% | -26.57% | Trim |
| 18 | NVDA | Nvidia CORP | -1% | -31.17% | Trim |
| 19 | SPOT | Spotify Technology S.A. | -1.1% | -46.82% | Trim |
| 20 | STT | State Street CORP | -1.8% | -47.98% | Trim |
| 21 | AXP | American Express Co | — | EXIT | Sold out |
| 22 | MSFT | Microsoft CORP | — | EXIT | Sold out |
| 23 | URI | United Rentals INC | — | EXIT | Sold out |
| 24 | FN | Fabrinet | — | NEW | New buy |
| 25 | C | Citigroup INC | — | EXIT | Sold out |
| 26 | EVR | Evercore INC - A | — | EXIT | Sold out |
| 27 | MKSI | Mks INC | — | NEW | New buy |
| 28 | CE | Celanese CORP | — | EXIT | Sold out |
| 29 | GOOGL | Alphabet Inc-cl A | — | EXIT | Sold out |
| 30 | APP | Applovin Corp-class A | — | EXIT | Sold out |
| 31 | DOCN | Digitalocean Holdings INC | — | NEW | New buy |
| 32 | AEIS | Advanced Energy Industries | — | NEW | New buy |
| 33 | SOXL | Direx Dail Semi Bu 3x Et-usd | — | NEW | New buy |
| 34 | ASH | Ashland INC | — | EXIT | Sold out |
| 35 | AMZN | Amazon.com INC | — | EXIT | Sold out |
| 36 | LITE | Lumentum Holdings INC | — | NEW | New buy |
| 37 | JNJ | Johnson & Johnson | — | EXIT | Sold out |
| 38 | CRM | Salesforce INC | — | EXIT | Sold out |
| 39 | STRL | Sterling Infrastructure INC | — | NEW | New buy |
| 40 | NOVT | Novanta INC | — | EXIT | Sold out |
| 41 | AAOI | Applied Optoelectronics INC | — | NEW | New buy |
| 42 | SIMO | Silicon Motion Technol-adr | — | NEW | New buy |
| 43 | VTR | Ventas INC | — | EXIT | Sold out |
| 44 | IREN | Iren LTD F | — | NEW | New buy |
| 45 | CHWY | Chewy INC - Class A | — | EXIT | Sold out |
| 46 | WELL | Welltower INC | — | EXIT | Sold out |
| 47 | CECO | Ceco Environmental CORP | — | EXIT | Sold out |
| 48 | AHR | American Healthcare Reit INC | — | EXIT | Sold out |
| 49 | MTSI | Macom Technology Solutions H | — | NEW | New buy |
| 50 | JBL | Jabil INC | — | NEW | New buy |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-12 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-02-10 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-10-28 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-08-11 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-05-13 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-02-13 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-11-14 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-08-13 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-05-14 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-02-14 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-11-14 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-08-11 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-05-11 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-02-14 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-11-14 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-08-11 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-05-11 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-02-14 | 13F-HR | View on EDGAR |
| 2021-09-30 | 2021-11-12 | 13F-HR | View on EDGAR |
| 2021-06-30 | 2021-08-13 | 13F-HR | View on EDGAR |
| 2021-03-31 | 2021-05-13 | 13F-HR | View on EDGAR |
| 2020-12-31 | 2021-02-12 | 13F-HR | View on EDGAR |
| 2020-09-30 | 2020-11-13 | 13F-HR | View on EDGAR |
| 2020-06-30 | 2020-08-12 | 13F-HR | View on EDGAR |
| 2020-03-31 | 2020-05-13 | 13F-HR | View on EDGAR |
| 2019-12-31 | 2020-02-13 | 13F-HR | View on EDGAR |
| 2019-09-30 | 2019-11-13 | 13F-HR | View on EDGAR |
| 2019-06-30 | 2019-08-14 | 13F-HR | View on EDGAR |
| 2019-03-31 | 2019-05-15 | 13F-HR | View on EDGAR |
| 2018-12-31 | 2019-02-13 | 13F-HR | View on EDGAR |
| 2018-09-30 | 2018-11-14 | 13F-HR | View on EDGAR |
| 2018-06-30 | 2018-08-14 | 13F-HR | View on EDGAR |
| 2018-03-31 | 2018-05-15 | 13F-HR | View on EDGAR |
| 2017-12-31 | 2018-02-14 | 13F-HR | View on EDGAR |
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