CIK: 0002022905
Total reported value
$165.0M
Reporting period: 2026-03-31 · Number of holdings: 13
Charter Oak Advisors LP disclosed 13 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $165.0M and a quarterly turnover rate of 69.4%.
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Charter Oak Advisors LP's disclosed holdings carry a Herfindahl concentration index of 0.136 — mathematically equivalent to about 7 equally-sized positions, well below its 13 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 0.91), suggesting a disciplined, rules-based approach to how much capital goes into each idea.
Recent activity leans toward adding more aggressively to already-large existing positions than to newly initiated ones (a 2.8 percentage-point tilt) — a pattern consistent with a momentum-following approach.
Add MOD
+787.0% $26.1M
Trim TLN
+29.0% $3.1M
Add GLNG
+55.4% $11.0M
Trim ICE
-59.8% -$3.8M
Trim CR
-56.3% -$3.1M
Add COO
+147.6% $7.3M
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | TLN | Talen Energy CORP | Stock-Utilities | 21.27% | -5.59% | +28.96% | |
| 2 | MOD | Modine Manufacturing Co | Stock-Consumer Disc | 17.03% | +15.39% | +786.99% | |
| 3 | SON | Sonoco Products Co | Stock-Consumer Disc | 14.34% | +0.38% | +14.87% | |
| 4 | GLNG | Golar LNG Limited | Stock-Energy | 11.97% | +4.62% | +55.39% | |
| 5 | CLH | Clean Harbors INC | Stock-Industrials | 10.99% | -0.97% | +4.17% | |
| 6 | AER | AerCap Holdings N.V. | Stock-Industrials | 8.35% | +8.35% | NEW | |
| 7 | COO | Cooper Cos Inc/the | Stock-Healthcare | 8.23% | +2.94% | +147.64% | |
| 8 | KBR | Kbr INC | Stock-Industrials | 1.72% | -1.24% | -11.88% | |
| 9 | ICE | Intercontinental Exchange In | Stock-Financials | 1.48% | -3.79% | -59.80% | |
| 10 | PNR | Pentair plc | Stock-Industrials | 1.48% | -2.75% | -42.10% | |
| 11 | CR | Crane Co | Stock-Industrials | 1.29% | -3.13% | -56.27% | |
| 12 | VVV | Valvoline INC | Stock-Consumer Disc | 0.94% | -1.92% | -60.60% | |
| 13 | ATMU | Atmus Filtration Technologie | Stock-Consumer Disc | 0.91% | -1.99% | -60.18% |
Performance for Q3 2026
-4.3%
Performance Last 4 Quarters
-2%
Based on 77% of reported portfolio value with available pricing
Charter Oak Advisors LP's most significant position changes for 2026-03-31: New buy: AerCap Holdings N.V. (AER); Sold out: Corning INC (GLW); Add: Modine Manufacturing Co (MOD) — shares +786.99%; Add: Talen Energy CORP (TLN) — shares +28.96%; Add: Golar LNG Limited (GLNG) — shares +55.39%.
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | MOD | Modine Manufacturing Co | +15.4% | +786.99% | Add |
| 2 | GLNG | Golar LNG Limited | +4.6% | +55.39% | Add |
| 3 | COO | Cooper Cos Inc/the | +2.9% | +147.64% | Add |
| 4 | SON | Sonoco Products Co | +0.4% | +14.87% | Add |
| 5 | CLH | Clean Harbors INC | -1% | +4.17% | Add |
| 6 | KBR | Kbr INC | -1.2% | -11.88% | Trim |
| 7 | VVV | Valvoline INC | -1.9% | -60.60% | Trim |
| 8 | ATMU | Atmus Filtration Technologie | -2% | -60.18% | Trim |
| 9 | PNR | Pentair plc | -2.8% | -42.10% | Trim |
| 10 | CR | Crane Co | -3.1% | -56.27% | Trim |
| 11 | ICE | Intercontinental Exchange In | -3.8% | -59.80% | Trim |
| 12 | TLN | Talen Energy CORP | -5.6% | +28.96% | Add |
| 13 | AER | AerCap Holdings N.V. | — | NEW | New buy |
| 14 | GLW | Corning INC | — | EXIT | Sold out |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-14 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-02-13 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-11-13 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-08-13 | 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 |
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