Managers / Q3 2025 · view latest →
PROMETHIUM ADVISORS,LLC
CIK 0002034073 · 7272 WISCONSIN AVE, 10-105, BETHESDA, MD, 20814 · 610-871-1593
Summary
Promethium Advisors,LLC reported $174M in U.S.-listed holdings across 119 positions for Q3 2025.
Its largest position, AAPL, represents 7.8% of the portfolio.
Compared with Q2 2025, the fund opened 8 new positions and exited 3.
Portfolio Metrics
Methodology: turnover is min(value bought, value sold) ÷ average reported value across the two quarters — value-based, so market moves inflate it slightly versus a share-based measure. Concentration and largest position are shares of the filing’s total reported value, options excluded. New/exited counts compare against the prior filed quarter. All figures derive solely from the fund’s 13F filings.
Reported Value by Quarter
Portfolio Composition
- Common Stock · 78.3% · $136M
- ETP · 16.4% · $29M
- REIT · 2.3% · $4M
- MLP · 1.1% · $2M
- Closed-End Fund · 0.7% · $1M
- Other · 1.2% · $2M
Quarter-over-Quarter Changes full breakdown →
vs Q2 2025 (amended baseline)
| Issuer | Move | Share Δ | Shares now | Value Δ | Value now |
|---|---|---|---|---|---|
| WBIWATERBRIDGE INFRASTRUCTURE L | NEW | +32.0K | 32.0K | +$806,586 | $806,586 |
| QC10FLAGSTAR FINANCIAL INC | NEW | +69.7K | 69.7K | +$804,458 | $804,458 |
| UNHUNITEDHEALTH GROUP INC | NEW | +1.3K | 1.3K | +$454,070 | $454,070 |
| NVDANVIDIA CORPORATION | NEW | +1.7K | 1.7K | +$317,187 | $317,187 |
| GSGOLDMAN SACHS GROUP INC | NEW | +290 | 290 | +$230,942 | $230,942 |
| MEDTRONIC PLC | NEW | +2.3K | 2.3K | +$217,807 | $217,807 |
| MUMICRON TECHNOLOGY INC | NEW | +1.2K | 1.2K | +$204,967 | $204,967 |
| GMGENERAL MTRS CO | NEW | +3.4K | 3.4K | +$204,859 | $204,859 |
Value changes conflate price moves with buying and selling — share changes are the real signal. Share counts are not split-adjusted.
Holdings — Q3 2025
Filing History
| Quarter | Reported Value | Positions | Filed | Type | Links |
|---|---|---|---|---|---|
| Q1 2026 | $193M | 112 | Apr 22, 2026 | 13F-HR | changes · EDGAR ↗ |
| Q4 2025 | $185M | 116 | Feb 12, 2026 | 13F-HR | changes · EDGAR ↗ |
| Q3 2025 | $174M | 119 | Nov 14, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q2 2025 | $165M | 114 | Aug 11, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q1 2025 | $156M | 122 | May 15, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q4 2024 | $146M | 127 | Feb 11, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q3 2024 | $142M | 133 | Nov 14, 2024 | 13F-HR | changes · EDGAR ↗ |
13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.