CIK: 0001383782
Total reported value
$186.1M
Reporting period: 2026-03-31 · Number of holdings: 109
Merrion Investment Management Co, LLC disclosed 109 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $186.1M and a quarterly turnover rate of 22.1%.
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Merrion Investment Management Co, LLC's disclosed holdings carry a Herfindahl concentration index of 0.027 — mathematically equivalent to about 37 equally-sized positions, well below its 109 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 1.40), 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.
Sector classification currently covers about 50% of this portfolio's disclosed value; the remainder includes holdings (e.g. unmapped tickers, options, or other security types) not yet covered by our sector mapping.
Trim CCJ
-44.9% -$4.7M
Trim JEF
-0.5% -$4.2M
Add ECHO
+34.5% $2.4M
Add VRT
0.0% $2.0M
Add GLW
-0.4% $2.0M
Add NMM
+14.6% $1.9M
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 6.81% | -0.66% | — | |
| 2 | NVDA | Nvidia CORP | Stock-Tech | 6.09% | -0.43% | — | |
| 3 | AAPL | Apple INC | Stock-Tech | 5.16% | -0.37% | — | |
| 4 | CCJ | Cameco CORP | Stock-Energy | 4.73% | -2.53% | -44.94% | |
| 5 | JEF | Jefferies Financial Group In | Stock-Financials | 4.41% | -2.26% | -0.50% | |
| 6 | ECHO | Echostar Corp-a | Stock-Comm Services | 4.20% | +1.30% | +34.46% | |
| 7 | NMM | Navios Maritime Partners L.P. | Stock-Other | 3.17% | +1.02% | +14.63% | |
| 8 | VRT | Vertiv Holdings Co-a | Stock-Industrials | 3.03% | +1.07% | — | |
| 9 | GLW | Corning INC | Stock-Tech | 3.02% | +1.06% | -0.36% | |
| 10 | GS | Goldman Sachs Group INC | Stock-Financials | 2.64% | — | +4.50% | |
| 11 | BRK-B | Berkshire Hathaway Inc-cl B | Stock-Other | 2.64% | -0.13% | — | |
| 12 | GEV | GE Vernova INC | Stock-Industrials | 2.59% | +0.63% | -0.72% | |
| 13 | HAL | Halliburton Co | Stock-Energy | 2.32% | +0.63% | — | |
| 14 | MGM | Mgm Resorts International | Stock-Consumer Disc | 2.17% | — | — | |
| 15 | CNQ | Canadian Natural Resources | Stock-Energy | 2.06% | +0.61% | — | |
| 16 | MPC | Marathon Petroleum CORP | Stock-Energy | 2.05% | +0.68% | — | |
| 17 | TFPM | Triple Flag Precious Met | Stock-Materials | 1.68% | — | — | |
| 18 | SPY | Ss Spdr S&p 500 ETF Trust-us | ETF-Large Cap & Growth | 1.61% | — | — | |
| 19 | GSAT | Globalstar INC | Stock-Other | 1.56% | +0.12% | — | |
| 20 | NVEC | Nve CORP | Stock-Other | 1.50% | +0.14% | — | |
| 21 | ORCL | Oracle CORP | Stock-Tech | 1.30% | -0.42% | — | |
| 22 | MSFT | Microsoft CORP | Stock-Tech | 1.23% | -0.54% | -9.20% | |
| 23 | JNJ | Johnson & Johnson | Stock-Healthcare | 1.16% | +0.17% | — | |
| 24 | MU | Micron Technology INC | Stock-Tech | 1.09% | +0.13% | -4.00% | |
| 25 | CEG | Constellation Energy | Stock-Utilities | 1.04% | -0.27% | — | |
| 26 | AIG | American International Group | Stock-Financials | 1.03% | -0.19% | -3.79% | |
| 27 | XOM | Exxon Mobil CORP | Stock-Energy | 0.95% | +0.27% | — | |
| 28 | FCNCA | First Citizens Bcshs -cl A | Stock-Financials | 0.89% | -0.12% | — | |
| 29 | VTS | Vitesse Energy INC | Stock-Other | 0.86% | — | +1.15% | |
| 30 | ABBV | Abbvie INC | Stock-Healthcare | 0.82% | — | — | |
| 31 | BWXT | Bwx Technologies INC | Stock-Industrials | 0.81% | +0.13% | — | |
| 32 | NE | Noble Corporation plc | Stock-Energy | 0.79% | +0.33% | — | |
| 33 | DG | Dollar General CORP | Stock-Consumer Staples | 0.75% | -0.09% | — | |
| 34 | AMZN | Amazon.com INC | Stock-Consumer Disc | 0.67% | — | -0.33% | |
| 35 | GE | General Electric | Stock-Industrials | 0.64% | — | -0.60% | |
| 36 | QQQ | Invesco Qqq Trust Series 1 | ETF-Tech | 0.63% | — | -4.73% | |
| 37 | BKR | Baker Hughes Co | Stock-Energy | 0.62% | +0.15% | — | |
| 38 | JPM | Jpmorgan Chase & Co | Stock-Financials | 0.61% | — | — | |
| 39 | ET | Energy Transfer LP | Stock-Energy | 0.60% | +0.08% | — | |
| 40 | COST | Costco Wholesale CORP | Stock-Consumer Staples | 0.59% | -0.11% | -26.67% | |
| 41 | AJG | Arthur J Gallagher & Co | Stock-Financials | 0.58% | -0.12% | — | |
| 42 | UTG | Reaves Utility Income Fund | Stock-Other | 0.58% | +0.09% | +10.00% | |
| 43 | OLN | Olin CORP | Stock-Materials | 0.58% | +0.24% | +18.67% | |
| 44 | NFLX | Netflix INC | Stock-Comm Services | 0.55% | — | -8.62% | |
| 45 | LLY | Eli Lilly & Co | Stock-Healthcare | 0.54% | -0.10% | — | |
| 46 | WMB | Williams Cos INC | Stock-Energy | 0.50% | +0.09% | — | |
| 47 | CAT | Caterpillar INC | Stock-Industrials | 0.49% | +0.10% | — | |
| 48 | CB | Chubb Limited | Stock-Financials | 0.49% | — | — | |
| 49 | CVX | Chevron CORP | Stock-Energy | 0.48% | +0.12% | — | |
| 50 | ELV | Elevance Health INC | Stock-Healthcare | 0.47% | -0.09% | — |
Performance for Q3 2026
-2.3%
Performance Last 4 Quarters
+36.7%
Based on 78% of reported portfolio value with available pricing
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 109 | $186.1M | 22 | |
| 2025-12-31 | 113 | $185.7M | 18 | |
| 2025-09-30 | 106 | $174.3M | 31 | |
| 2025-06-30 | 103 | $154.2M | 0 | |
| 2025-03-31 | 98 | $139.3M | 100 | |
| 2024-12-31 | 101 | $143.7M | 0 | |
| 2024-09-30 | 103 | $151.6M | 0 | |
| 2024-06-30 | 97 | $145.5M | 0 | |
| 2024-03-31 | 99 | $139.9M | 0 | |
| 2023-12-31 | 91 | $127.3M | 0 | |
| 2023-09-30 | 93 | $115.6M | 0 | |
| 2023-06-30 | 98 | $117.9M | 0 | |
| 2023-03-31 | 92 | $104.7M | 0 | |
| 2022-12-31 | 88 | $107.4M | 0 | |
| 2022-09-30 | 87 | $101.3M | 0 | |
| 2022-06-30 | 90 | $103.3M | 0 | |
| 2022-03-31 | 98 | $136.8M | 0 | |
| 2021-12-31 | 98 | $136.3M | 0 | |
| 2021-09-30 | 92 | $131.3M | 0 | |
| 2021-06-30 | 92 | $131.9M | 95 | |
| 2021-03-31 | 85 | $119.8M | 27 | |
| 2020-12-31 | 259 | $118.3M | 0 |
Merrion Investment Management Co, LLC's most significant position changes for 2026-03-31: New buy: Tidewater INC (TDW); Sold out: Orla Mining LTD (ORLA); New buy: Transocean Ltd. (RIG); Sold out: Linde plc (LIN); Sold out: Sap Se-sponsored Adr (SAP).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | ECHO | Echostar Corp-a | +1.3% | +34.46% | Add |
| 2 | VRT | Vertiv Holdings Co-a | +1.1% | — | Unchanged |
| 3 | GLW | Corning INC | +1.1% | -0.36% | Trim |
| 4 | NMM | Navios Maritime Partners L.P. | +1% | +14.63% | Add |
| 5 | MPC | Marathon Petroleum CORP | +0.7% | — | Unchanged |
| 6 | HAL | Halliburton Co | +0.6% | — | Unchanged |
| 7 | GEV | GE Vernova INC | +0.6% | -0.72% | Trim |
| 8 | CNQ | Canadian Natural Resources | +0.6% | — | Unchanged |
| 9 | NE | Noble Corporation plc | +0.3% | — | Unchanged |
| 10 | XOM | Exxon Mobil CORP | +0.3% | — | Unchanged |
| 11 | OLN | Olin CORP | +0.2% | +18.67% | Add |
| 12 | JNJ | Johnson & Johnson | +0.2% | — | Unchanged |
| 13 | BKR | Baker Hughes Co | +0.2% | — | Unchanged |
| 14 | GLD | Spdr Gold Shares | +0.1% | +33.33% | Add |
| 15 | NVEC | Nve CORP | +0.1% | — | Unchanged |
| 16 | MU | Micron Technology INC | +0.1% | -4.00% | Trim |
| 17 | BWXT | Bwx Technologies INC | +0.1% | — | Unchanged |
| 18 | CVX | Chevron CORP | +0.1% | — | Unchanged |
| 19 | GSAT | Globalstar INC | +0.1% | — | Unchanged |
| 20 | LNG | Cheniere Energy INC | +0.1% | — | Unchanged |
| 21 | CAT | Caterpillar INC | +0.1% | — | Unchanged |
| 22 | UTG | Reaves Utility Income Fund | +0.1% | +10.00% | Add |
| 23 | WMB | Williams Cos INC | +0.1% | — | Unchanged |
| 24 | ET | Energy Transfer LP | +0.1% | — | Unchanged |
| 25 | ELV | Elevance Health INC | -0.1% | — | Unchanged |
| 26 | XYL | Xylem INC | -0.1% | -33.33% | Trim |
| 27 | DG | Dollar General CORP | -0.1% | — | Unchanged |
| 28 | QCOM | Qualcomm INC | -0.1% | — | Unchanged |
| 29 | LLY | Eli Lilly & Co | -0.1% | — | Unchanged |
| 30 | COST | Costco Wholesale CORP | -0.1% | -26.67% | Trim |
| 31 | FCNCA | First Citizens Bcshs -cl A | -0.1% | — | Unchanged |
| 32 | AJG | Arthur J Gallagher & Co | -0.1% | — | Unchanged |
| 33 | BRK-B | Berkshire Hathaway Inc-cl B | -0.1% | — | Unchanged |
| 34 | APO | Apollo Global Management INC | -0.2% | -14.60% | Trim |
| 35 | AIG | American International Group | -0.2% | -3.79% | Trim |
| 36 | CEG | Constellation Energy | -0.3% | — | Unchanged |
| 37 | AAPL | Apple INC | -0.4% | — | Unchanged |
| 38 | ORCL | Oracle CORP | -0.4% | — | Unchanged |
| 39 | NVDA | Nvidia CORP | -0.4% | — | Unchanged |
| 40 | MSFT | Microsoft CORP | -0.5% | -9.20% | Trim |
| 41 | GOOG | Alphabet Inc-cl C | -0.7% | — | Unchanged |
| 42 | JEF | Jefferies Financial Group In | -2.3% | -0.50% | Trim |
| 43 | CCJ | Cameco CORP | -2.5% | -44.94% | Trim |
| 44 | TDW | Tidewater INC | — | NEW | New buy |
| 45 | ORLA | Orla Mining LTD | — | EXIT | Sold out |
| 46 | RIG | Transocean Ltd. | — | NEW | New buy |
| 47 | LIN | Linde plc | — | EXIT | Sold out |
| 48 | SAP | Sap Se-sponsored Adr | — | EXIT | Sold out |
| 49 | BX | Blackstone INC | — | EXIT | Sold out |
| 50 | LYB | LyondellBasell Industries N.V. | — | EXIT | Sold out |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-04-23 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-02-17 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-10-15 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-08-07 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-04-21 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-01-23 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-10-09 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-07-18 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-04-17 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-01-12 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-10-19 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-07-17 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-04-06 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-01-24 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-10-17 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-08-05 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-05-13 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-02-03 | 13F-HR | View on EDGAR |
| 2021-09-30 | 2021-11-09 | 13F-HR | View on EDGAR |
| 2021-06-30 | 2021-07-28 | 13F-HR | View on EDGAR |
| 2021-03-31 | 2021-04-29 | 13F-HR | View on EDGAR |
| 2020-12-31 | 2021-02-09 | 13F-HR | View on EDGAR |
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