ALPHA PRO TECH LTD (APT) Institutional Ownership Changes & 13F Activity
ALPHA PRO TECH LTD (APT). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Group One Trading Llc, Susquehanna International Group, Llp, Marshall Wace, Llp, Vanguard Capital Management Llc, and Geode Capital Management, Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Group One Trading Llc | Sell | -110,992 | -98.2% | 2,079 | $11.68K | Q2 2026 | Aug 14, 2026 |
| Susquehanna International Group, Llp | Buy | +101,473 | +71.9% | 242,699 | $1.36M | Q2 2026 | Aug 14, 2026 |
| Bridgeway Capital Management, Llc | Sell | -14,000 | -17.8% | 64,525 | $362.63K | Q2 2026 | Aug 14, 2026 |
| Pinnacle Financial Partners, Inc. | Sell | -12,600 | -50.4% | 12,400 | $69.69K | Q2 2026 | Aug 14, 2026 |
| Jane Street Group, Llc | Sell | -12,583 | -49.1% | 13,047 | $73.32K | Q2 2026 | Aug 14, 2026 |
| Wells Fargo & Company/Mn | Sell | -3,000 | -100.0% | 1 | $3.00 | Q2 2026 | Aug 14, 2026 |
| Xtx Topco Ltd | Buy | +2,500 | +17.0% | 17,217 | $96.76K | Q2 2026 | Aug 14, 2026 |
| Osaic Holdings, Inc. | Sell | -1,000 | -20.9% | 3,780 | $21.24K | Q2 2026 | Aug 14, 2026 |
| Marshall Wace, Llp | Buy | +52,113 | — | 52,113 | $292.87K | Q2 2026 | Aug 13, 2026 |
| Vanguard Capital Management Llc | Sell | -41,198 | -7.4% | 512,476 | $2.88M | Q2 2026 | Aug 13, 2026 |
| Renaissance Technologies LLC | Buy | +17,500 | +3.2% | 561,572 | $3.16M | Q2 2026 | Aug 13, 2026 |
| Acadian Asset Management Llc | Sell | -6,486 | -4.9% | 126,866 | $712.00K | Q2 2026 | Aug 13, 2026 |
| Ubs Group Ag | Buy | +5,761 | — | 5,761 | $32.38K | Q2 2026 | Aug 13, 2026 |
| Northern Trust Corp | Buy | +2,623 | +14.5% | 20,697 | $116.32K | Q2 2026 | Aug 13, 2026 |
| Morgan Stanley | Sell | -700 | -8.0% | 8,066 | $45.33K | Q2 2026 | Aug 13, 2026 |
| Fmr Llc | Buy | +400 | — | 400 | $2.25K | Q2 2026 | Aug 13, 2026 |
| Vanguard Fiduciary Trust Co | Buy | +356 | +0.7% | 51,788 | $291.05K | Q2 2026 | Aug 13, 2026 |
| Geode Capital Management, Llc | Buy | +28,467 | +41.6% | 96,853 | $545.00K | Q2 2026 | Aug 12, 2026 |
| Simplex Trading, Llc | Buy | +16,772 | — | 16,772 | $94.26K | Q2 2026 | Aug 12, 2026 |
| Newedge Advisors, Llc | Buy | +11,056 | — | 11,056 | $62.13K | Q2 2026 | Aug 12, 2026 |
| Jpmorgan Chase & Co | Buy | +131 | — | 131 | $727.00 | Q2 2026 | Aug 12, 2026 |
| Dimensional Fund Advisors Lp | Sell | -232 | -0.2% | 137,103 | $770.52K | Q2 2026 | Aug 11, 2026 |
| Tower Research Capital Llc (Trc) | Buy | +42 | +6.5% | 684 | $3.84K | Q2 2026 | Aug 11, 2026 |
| Blackrock, Inc. | Buy | +6,887 | +2.5% | 278,687 | $1.57M | Q2 2026 | Aug 07, 2026 |
| Cva Family Office, Llc | Buy | +3 | — | 3 | $17.00 | Q2 2026 | Aug 07, 2026 |
| Essex Investment Management Co Llc | Sell | -111 | -0.3% | 34,264 | $192.56K | Q2 2026 | Aug 06, 2026 |
| Caitong International Asset Management Co., Ltd | Buy | +22 | — | 22 | $124.00 | Q2 2026 | Aug 05, 2026 |
| Signaturefd, Llc | Buy | +10 | — | 10 | $56.00 | Q2 2026 | Jul 24, 2026 |
| Jones Financial Companies Lllp | Sell | -150 | -100.0% | 0 | $0.00 | Q2 2026 | May 15, 2026 |
| Cwm, Llc | Sell | -100 | -100.0% | 0 | $0.00 | Q2 2026 | May 14, 2026 |
Frequently asked questions about APT activity
Which institutional owners are buying APT?
Institutional owners buying APT include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in APT activity?
"Buy" means an investor increased their reported position in APT compared to the prior reporting period. This reflects growing exposure to ALPHA PRO TECH LTD (APT) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in APT increasing?
Institutional interest in APT can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related APT Institutional Insights
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- Industrials Sector Institutional Ownership
- Industrials Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
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- APT Insider Trading & SEC Form 4 Activity
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