OpCo 13F-HR · quarter narrative
OpCo 13F-HR changes
How operating-company 13F-HR books shifted last quarter — strategic stakes, not hedge-fund “moves.” Soft language: new stake · weight up · weight down · still held · closed. Featured manager firehose stays on Activity. Latest books on OpCo 13F-HR.
OpCo 13F-HR changes·new stake
52 shownnarrative
newest filed first · soft labels · open company or period
| ticker | narrative | company | Δ weight | detail | period |
|---|---|---|---|---|---|
| 15 May 3 | |||||
| VST | new stake | Loews conglomerate | +0.09 pp | opened 0.09% | 2025Q4→2026Q1 |
| Generate Biomedicines | new stake | Nvidia tech treasury | +0.06 pp | opened 0.06% | 2025Q4→2026Q1 |
| United Parks | new stake | Loews conglomerate | +0.03 pp | opened 0.03% | 2025Q4→2026Q1 |
| 12 May 3 | |||||
| MRVL | new stake | Advanced Micro Devices tech treasury | +3.72 pp | opened 3.7% | 2025Q4→2026Q1 |
| Xanadu Quantum | new stake | Advanced Micro Devices tech treasury | +0.88 pp | opened 0.9% | 2025Q4→2026Q1 |
| AGMB | new stake | Pfizer pharma | +0.34 pp | opened 0.3% | 2025Q4→2026Q1 |
| 11 May 6 | |||||
| Vanguard St | new stake | Allstate insurance float | +10.69 pp | opened 10.7% | 2025Q4→2026Q1 |
| SNDK | new stake | Allstate insurance float | +0.10 pp | opened 0.1% | 2025Q4→2026Q1 |
| MSCI | new stake | Allstate insurance float | +0.09 pp | opened 0.09% | 2025Q4→2026Q1 |
| LITE | new stake | Allstate insurance float | +0.05 pp | opened 0.05% | 2025Q4→2026Q1 |
| CDE | new stake | Allstate insurance float | +0.04 pp | opened 0.04% | 2025Q4→2026Q1 |
| COHR | new stake | Allstate insurance float | +0.04 pp | opened 0.04% | 2025Q4→2026Q1 |
OpCo 13F-HR narrative uses the same QoQ math as featured Activity, with softer labels. “Still held” = kept stake with <1 pp weight change. Featured New/Exit/Add/Reduce stays on Activity. Not investment advice.