Ownership history in GROUP ONE TRADING LLC · 17 quarters on record
This page tracks every 13F SEC filing in which GROUP ONE TRADING LLC reported a position in ALPHA PRO TECH LTD (APT). 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 | 13,559 | -2,473 | -15.4% | 0.00% | $65K | $4.79 |
| 2025 Q2 | ADDED | 16,032 | +11,465 | +251.0% | 0.00% | $75K | $4.69 |
| 2025 Q1 | REDUCED | 4,567 | -7,083 | -60.8% | 0.00% | $23K | $5.00 |
| 2024 Q2 | REDUCED | 11,650 | -1,044 | -8.2% | 0.00% | $64K | $5.50 |
| 2024 Q1 | ADDED | 12,694 | +10,180 | +404.9% | 0.00% | $79K | $6.24 |
| 2023 Q1 | REDUCED | 2,514 | -66,815 | -96.4% | 0.00% | $10K | $4.16 |
| 2022 Q4 | ADDED | 69,329 | +34,075 | +96.7% | 0.00% | $279K | $4.02 |
| 2022 Q3 | REDUCED | 35,254 | -22,692 | -39.2% | 0.00% | $143K | $4.05 |
| 2022 Q2 | ADDED | 57,946 | +32,319 | +126.1% | 0.00% | $258K | $4.46 |
| 2022 Q1 | REDUCED | 25,627 | -17,495 | -40.6% | 0.00% | $108K | $4.20 |
As of 2025 Q4 — sorted by position size