APT ALPHA PRO TECH LTD: institutional ownership and insider trading
46 funds reported holding $25.1M of ALPHA PRO TECH LTD in their latest 13F filings; in Q2 2026 funds net sold $908K, with 8 new positions and 3 funds selling out; over the last 12 months insiders bought $0 and sold $417K on the open market.
Famous investors holding APT
- Renaissance Technologies (Renaissance Technologies): $3.16M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $2.88M, 0.0% of the portfolio
Largest institutional holders of APT
- NEEDHAM INVESTMENT MANAGEMENT LLC — $3.61M
- SUSQUEHANNA INTERNATIONAL GROUP, LLP — $3.52M
- RENAISSANCE TECHNOLOGIES LLC — $3.16M
- VANGUARD CAPITAL MANAGEMENT LLC — $2.88M
- CITADEL ADVISORS LLC — $2.88M
- VANGUARD GROUP INC — $2.70M
- BlackRock, Inc. (BLK) — $1.57M
- DIMENSIONAL FUND ADVISORS LP — $771K
- ACADIAN ASSET MANAGEMENT LLC — $712K
- GEODE CAPITAL MANAGEMENT, LLC — $545K
Recent APT insider trades
- Sep 28, 2026: Montgomery Charles D sold 21,943 shares ($111K)
- Sep 28, 2026: Millar Donna sold 6,971 shares ($35.1K)
- May 15, 2026: Garcia David R sold 6,186 shares ($34.4K)
- May 14, 2026: Garcia David R sold 4,900 shares ($28.8K)
5%+ owners
- Vanguard Capital Management: 6.0% (Schedule 13G, filed Apr 28, 2026)