Institutional Manager · CIK 0001595533
Summit Street Capital Management, LLC
NEW YORK, NY · File #028-16811
Latest AUM
$636.2M
Positions
31
Top-10 Concentration
42.7%
Filings
11
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| NEW | LANTHEUS HLDGS INC | LNTH | +405,664 | +$27.0M | $0 |
| REDUCE | MICRON TECHNOLOGY INC | MU | -48,704 | -$13.9M | +$16.7M |
| REDUCE | LAM RESEARCH CORP | LRCX | -69,065 | -$11.8M | +$7.6M |
| REDUCE | APPLIED MATLS INC | 038222105 | -43,123 | -$11.1M | +$6.2M |
| REDUCE | MOLINA HEALTHCARE INC | MOH | -58,457 | -$10.1M | -$2.6M |
| ADD | LYONDELLBASELL INDUSTRIES N | LYB | +214,521 | +$9.3M | -$2.2M |
| REDUCE | HUMANA INC | HUM | -32,942 | -$8.4M | -$413,991 |
| REDUCE | DILLARDS INC | 254067101 | -13,082 | -$7.9M | -$448,273 |
| REDUCE | INTERDIGITAL INC | IDCC | -22,768 | -$7.2M | -$2.7M |
| ADD | TEXAS PACIFIC LAND CORPORATI | TPL | +22,290 | +$6.4M | -$9.4M |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 202531 pos · $636.2M
- 13F HOLDINGS REPORTQ/E Sep 202530 pos · $729.0M
- 13F HOLDINGS REPORTQ/E Jun 202530 pos · $606.2M
- 13F HOLDINGS REPORT (Amended)Q/E Jun 202530 pos · $638.0M
- 13F HOLDINGS REPORT (Amended)Q/E Jun 202530 pos · $600.6M
- 13F HOLDINGS REPORTQ/E Mar 202530 pos · $262.3M
- 13F HOLDINGS REPORTQ/E Dec 202431 pos · $281.4M
- 13F HOLDINGS REPORTQ/E Sep 202429 pos · $280.1M
- 13F HOLDINGS REPORTQ/E Jun 202429 pos · $273.7M
- 13F HOLDINGS REPORTQ/E Mar 202431 pos · $260.4M
- 13F HOLDINGS REPORTQ/E Dec 202331 pos · $224.1M
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | WARRIOR MET COAL INC | HCC | 351,989 | $31.0M | 4.88% |
| 2 | WARNER BROS DISCOVERY INC | WBD | 971,377 | $28.0M | 4.40% |
| 3 | WEATHERFORD INTL PLC | G48833118 | 355,282 | $27.8M | 4.37% |
| 4 | UNITED THERAPEUTICS CORP DEL | UTHR | 56,872 | $27.7M | 4.36% |
| 5 | CORE NATURAL RESOURCES INC | CNR | 305,260 | $27.0M | 4.25% |
| 6 | LANTHEUS HLDGS INC | LNTH | 405,664 | $27.0M | 4.24% |
| 7 | MICRON TECHNOLOGY INC | MU | 92,463 | $26.4M | 4.15% |
| 8 | LYONDELLBASELL INDUSTRIES N | LYB | 605,362 | $26.2M | 4.12% |
| 9 | DILLARDS INC | 254067101 | 41,754 | $25.3M | 3.98% |
| 10 | TEEKAY TANKERS LTD | TNK | 471,147 | $25.2M | 3.96% |
| 11 | INTERDIGITAL INC | IDCC | 76,848 | $24.5M | 3.85% |
| 12 | CF INDS HLDGS INC | 125269100 | 302,803 | $23.4M | 3.68% |
| 13 | FOX CORP | FOX | 316,870 | $23.2M | 3.64% |
| 14 | LAM RESEARCH CORP | LRCX | 135,187 | $23.1M | 3.64% |
| 15 | SIGNET JEWELERS LIMITED | SIG | 272,607 | $22.6M | 3.55% |
| 16 | ELEVANCE HEALTH INC FORMERLY | ELV | 62,896 | $22.0M | 3.47% |
| 17 | SCORPIO TANKERS INC | STNG | 418,959 | $21.3M | 3.35% |
| 18 | VALERO ENERGY CORP | VLO | 127,602 | $20.8M | 3.27% |
| 19 | APPLIED MATLS INC | 038222105 | 76,036 | $19.5M | 3.07% |
| 20 | KLA CORP | KLAC | 14,981 | $18.2M | 2.86% |