Ownership history in Sigma Planning Corp · 28 quarters on record
This page tracks every 13F SEC filing in which Sigma Planning Corp reported a position in ATOMERA INC (ATOM). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.
| Quarter | Action | Shares | Change | Chg % | % of Fund | Mkt Value | Price (EOQ) |
|---|---|---|---|---|---|---|---|
| 2025 Q3 | REDUCED | 12,750 | -12,050 | -48.6% | 0.00% | $56K | $4.42 |
| 2025 Q2 | REDUCED | 24,800 | -24,210 | -49.4% | 0.00% | $125K | $5.04 |
| 2025 Q1 | REDUCED | 49,010 | -800 | -1.6% | 0.01% | $196K | $4.00 |
| 2024 Q4 | ADDED | 49,810 | +24,810 | +99.2% | 0.02% | $578K | $11.60 |
| 2024 Q3 | REDUCED | 25,000 | -1,200 | -4.6% | 0.00% | $66K | $2.63 |
| 2024 Q2 | REDUCED | 26,200 | -400 | -1.5% | 0.00% | $100K | $3.81 |
| 2024 Q1 | ADDED | 26,600 | +15,000 | +129.3% | 0.01% | $164K | $6.16 |
| 2023 Q4 | REDUCED | 11,600 | -15,150 | -56.6% | 0.01% | $81K | $7.01 |
| 2023 Q3 | UNCHANGED | 26,750 | — | 0% | 0.01% | $167K | $6.26 |
| 2023 Q2 | ADDED | 26,750 | +5,075 | +23.4% | 0.01% | $235K | $8.77 |
As of 2025 Q4 — sorted by position size