Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.
| Holder | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| Yorktown Energy Partners XI, L.P. | 1.1M | 1.0M | 1.2M | 1.2M | 1.3M | 1.3M | $13M |
| YORKTOWN ENERGY PARTNERS IX, L.P. | 1.1M | 1.0M | 1.2M | 1.2M | 1.2M | 1.2M | $13M |
| Yorktown Energy Partners X, L.P. | 713K | 669K | 806K | 816K | 828K | 827K | $8M |
| First Eagle Investment Management, LLC | — | — | — | 306K | 467K | 545K | $6M |
| VANGUARD CAPITAL MANAGEMENT LLC | — | — | — | — | — | 328K | $3M |
| MORGAN STANLEY | 45K | 76K | 195K | 187K | 199K | 320K | $3M |
| Simcoe Capital LLC | — | — | — | — | 161K | 166K | $2M |
| GEODE CAPITAL MANAGEMENT, LLC | 213K | 251K | 195K | 130K | 157K | 161K | $2M |
| AMERICAN CENTURY COMPANIES INC | 175K | 197K | 222K | 221K | 146K | 135K | $1M |
| RENAISSANCE TECHNOLOGIES LLC | 59K | 74K | 69K | 88K | 158K | 130K | $1M |
| DISCOVERY CAPITAL MANAGEMENT, LLC / CT | 11K | 27K | 39K | 74K | 126K | 127K | $1M |
| BlackRock, Inc. | 336K | 361K | 130K | 96K | 98K | 100K | $1M |
| MILLENNIUM MANAGEMENT LLC | — | — | 20K | 14K | 21K | 96K | $983,362 |
| South Dakota Investment Council | 92K | 92K | 92K | 85K | 87K | 88K | $897,000 |
| WEDGE CAPITAL MANAGEMENT L L P/NC | 205K | 160K | 177K | 144K | 76K | 73K | $743,886 |
Shares reported each quarter by the largest current holders. Green = added vs the prior filing, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.
Holder count only — too few computable %-of-shares-outstanding quarters for a % pane. Line breaks are quarters with no 13F record, never interpolated.
| Quarter | Holders | Shares held | % shares out | Value held |
|---|---|---|---|---|
| 2026-Q1 | 79 | 6,263,494 | — | $64M |
| 2025-Q4 | 83 | 6,163,242 | — | $72M |
| 2025-Q3 | 86 | 5,711,532 | — | $96M |
| 2025-Q2 | 97 | 5,841,534 | — | $48M |
| 2025-Q1 | 92 | 5,303,418 | — | $38M |
| 2024-Q4 | 87 | 5,245,807 | — | $52M |
| 2024-Q3 | 60 | 5,033,326 | — | $54M |
| 2024-Q2 | 66 | 5,009,091 | — | $54M |
| 2024-Q1 | 69 | 5,160,776 | — | $65M |
| 2023-Q4 | 66 | 5,088,864 | — | $68M |
| 2023-Q3 | 62 | 5,123,941 | — | $61M |
| 2023-Q2 | 71 | 5,008,661 | — | $53M |
Short interest has its own tab now — open SI →
Source: SEC Form 13F — every institution manager (≥ $100M in 13F securities) reporting a long US-listed position, across ~10,250 filers over 10 years of history. 13F is long-only, US-listed, filed up to 45 days after quarter-end.
