Alpha Pro Tech Ltd
APT- Exchange
- NYSE
- Industry
- Orthopedic, Prosthetic & Surgical Appliances & Supplies
- SEC CIK
- 0000884269
No open-market purchases or sales by Alpha Pro Tech Ltd insiders were filed in the last 90 days; 41 institutions reported holding it in 13F filings for Q2 2026, worth $17.1M in total; no superinvestor holds it.
Holders of 5% or more of APT
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Alpha Pro Tech Ltd, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Millar Donna | 13D/A | 11.70%1.28M shares | – | Feb 12, 20251 filing | Feb 12, 2025 | SEC |
| Needham Investment Management LLC | 13G/A | 6.20%642.5K shares | – | Feb 13, 20261 filing | Feb 13, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
3 Schedule 13D and 13G filings on Alpha Pro Tech Ltd, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Mar 26, 20263:32 PM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | –Below 5% | Mar 13, 2026 | SEC |
| Feb 13, 20266:11 PM ET | Needham Investment Management LLCand 3 others | 13G/A | 6.20%642.5K shares | – | Dec 31, 2025 | SEC |
| Feb 12, 20254:39 PM ET | Millar Donna | 13D/A | 11.70%1.28M shares | – | Dec 13, 2018 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Alpha Pro Tech Ltd shares.
No Form 144 notices for Alpha Pro Tech Ltd are on file.