SummerHaven Investment Management, LLC reported 164 positions worth $133.98M for the quarter ended Sep 30, 2026, down 25.5% on the prior quarter. It opened 82 new positions, added to 40, trimmed 42 and exited 103. Its largest holding is Pediatrix Medical Group, Inc. at 1% of the portfolio.
Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.
Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.
How many positions were opened, added to, trimmed or closed each quarter.
Share of reported value in each sector at every quarter end.
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| ATNI ATN International, Inc. | +36.8K | – | $1.19M | 0.889% |
| RYAM Rayonier Advanced Materials Inc. | +139.0K | – | $1.19M | 0.888% |
| BBW Build-A-Bear Workshop Inc | +31.5K | – | $1.08M | 0.809% |
| GPI Group 1 Automotive Inc | +2,687 | – | $1.03M | 0.768% |
| HAPN Happen, Inc. | +89.5K | – | $1.02M | 0.764% |
| TBBK Bancorp, Inc. | +19.0K | – | $1.02M | 0.759% |
| DOLE Dole plc | +61.5K | – | $1.00M | 0.748% |
| HNRG Hallador Energy Co | +105.4K | – | $994.02K | 0.742% |
| OI O-I Glass, Inc. | +74.0K | – | $971.17K | 0.725% |
| CNX CNX Resources Corp | +29.8K | – | $969.25K | 0.723% |
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| AMKR Amkor Technology, Inc. | -36.4K | -100.0% | $3.14M | Exited |
| NWPX NWPX Infrastructure, Inc. | -18.5K | -100.0% | $2.77M | Exited |
| CENX Century Aluminum Co | -41.4K | -100.0% | $1.90M | Exited |
| BHE Benchmark Electronics Inc | -19.2K | -100.0% | $1.89M | Exited |
| MYE Myers Industries Inc | -49.7K | -100.0% | $1.76M | Exited |
| MEC Mayville Engineering Company, Inc. | -45.3K | -100.0% | $1.70M | Exited |
| LBRT Liberty Energy Inc. | -64.8K | -100.0% | $1.70M | Exited |
| OII Oceaneering International Inc | -36.2K | -100.0% | $1.47M | Exited |
| M Macy's, Inc. | -60.6K | -100.0% | $1.43M | Exited |
| FLXS Flexsteel Industries Inc | -19.0K | -100.0% | $1.41M | Exited |
| Holding | Shares | Trade Value | Weight |
|---|---|---|---|
| ATNI ATN International, Inc. | +36.8K | $1.19M | 0.889% |
| RYAM Rayonier Advanced Materials Inc. | +139.0K | $1.19M | 0.888% |
| BBW Build-A-Bear Workshop Inc | +31.5K | $1.08M | 0.809% |
| GPI Group 1 Automotive Inc | +2,687 | $1.03M | 0.768% |
| HAPN Happen, Inc. | +89.5K | $1.02M | 0.764% |
| TBBK Bancorp, Inc. | +19.0K | $1.02M | 0.759% |
| DOLE Dole plc | +61.5K | $1.00M | 0.748% |
| HNRG Hallador Energy Co | +105.4K | $994.02K | 0.742% |
| OI O-I Glass, Inc. | +74.0K | $971.17K | 0.725% |
| CNX CNX Resources Corp | +29.8K | $969.25K | 0.723% |
| Holding | Shares Sold | Trade Value | Prior Weight |
|---|---|---|---|
| AMKR Amkor Technology, Inc. | -36.4K | $3.14M | 1.75% |
| NWPX NWPX Infrastructure, Inc. | -18.5K | $2.77M | 1.54% |
| CENX Century Aluminum Co | -41.4K | $1.90M | 1.06% |
| BHE Benchmark Electronics Inc | -19.2K | $1.89M | 1.05% |
| MYE Myers Industries Inc | -49.7K | $1.76M | 0.977% |
| MEC Mayville Engineering Company, Inc. | -45.3K | $1.70M | 0.944% |
| LBRT Liberty Energy Inc. | -64.8K | $1.70M | 0.944% |
| OII Oceaneering International Inc | -36.2K | $1.47M | 0.815% |
| M Macy's, Inc. | -60.6K | $1.43M | 0.794% |
| FLXS Flexsteel Industries Inc | -19.0K | $1.41M | 0.786% |
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | MD Pediatrix Medical Group, Inc. | Healthcare | 111.3K | $1.29M | 0.963% | +53.5K | +92.7% | Added | 0.14% |
| 2 | ATNI ATN International, Inc. | Communication Services | 36.8K | $1.19M | 0.889% | +36.8K | – | New | 0.24% |
| 3 | RYAM Rayonier Advanced Materials Inc. | Basic Materials | 139.0K | $1.19M | 0.888% | +139.0K | – | New | 0.21% |
| 4 | MHO M/I Homes, Inc. | Consumer Discretionary | 6,329 | $1.08M | 0.809% | +188 | +3.1% | Added | 0.02% |
| 5 | BBW Build-A-Bear Workshop Inc | Consumer Discretionary | 31.5K | $1.08M | 0.809% | +31.5K | – | New | 0.25% |
| 6 | VSXY Victoria's Secret & Co. | Consumer Discretionary | 41.8K | $1.07M | 0.802% | +2,146 | +5.4% | Added | 0.05% |
| 7 | DMC Del Monte Corp | Consumer Staples | 35.5K | $1.05M | 0.783% | +12.8K | +56.3% | Added | 0.08% |
| 8 | CCSI Consensus Cloud Solutions, Inc. | Technology | 44.6K | $1.05M | 0.783% | +11.2K | +33.6% | Added | 0.24% |
| 9 | CPF Central Pacific Financial Corp | Financial Services | 35.5K | $1.05M | 0.783% | +9,917 | +38.7% | Added | 0.14% |
| 10 | MNRO Monro, Inc. | Consumer Discretionary | 35.7K | $1.03M | 0.769% | -9,598 | -21.2% | Reduced | 0.11% |
| 11 | GPI Group 1 Automotive Inc | Consumer Discretionary | 2,687 | $1.03M | 0.768% | +2,687 | – | New | 0.02% |
| 12 | HAPN Happen, Inc. | Financial Services | 89.5K | $1.02M | 0.764% | +89.5K | – | New | 0.08% |
| 13 | TBBK Bancorp, Inc. | Financial Services | 19.0K | $1.02M | 0.759% | +19.0K | – | New | 0.05% |
| 14 | DOLE Dole plc | Consumer Staples | 61.5K | $1.00M | 0.748% | +61.5K | – | New | 0.06% |
| 15 | MBC MasterBrand, Inc. | Consumer Discretionary | 53.8K | $997.62K | 0.745% | -6,872 | -11.3% | Reduced | 0.03% |
Tip. Select a row to see that position’s full history at SummerHaven Investment Management.
As of its Q3 2026 13F filing, SummerHaven Investment Management, LLC’s five largest positions were Pediatrix Medical Group, Inc. (MD) at 1.0%, ATN International, Inc. (ATNI) at 0.9%, Rayonier Advanced Materials Inc. (RYAM) at 0.9%, M/I Homes, Inc. (MHO) at 0.8%, Build-A-Bear Workshop Inc (BBW) at 0.8% of the reported portfolio.
SummerHaven Investment Management, LLC reported a 13F portfolio worth $133.98M across 164 positions for Q3 2026. That is down 25.5% from the previous quarter.
Its largest purchases by value were ATN International, Inc. ($1.19M), Rayonier Advanced Materials Inc. ($1.19M), Build-A-Bear Workshop Inc ($1.08M). It opened 82 new positions.
Its largest sales by value were Amkor Technology, Inc. ($3.14M), NWPX Infrastructure, Inc. ($2.77M), Century Aluminum Co ($1.90M). It exited 103 positions entirely.
From the Form 13F-HR reports SummerHaven Investment Management, LLC files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.
13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.