Company · Ownership research

ALPHA PRO TECH LTD APT

CIK 0000884269 · CUSIP 020772109

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 020772109 (APT), not CUSIP 020772909 (APT), CUSIP 020772959 (APT), CUSIP 09258M101 (APT), and does not merge CUSIPs.

This page lists the top 20 of 28 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$2.73M 532,273 shares	0.00%	-29.30K(-5.20%)Reduced	SEC filing ↗ Nov 12, 2026	▾
02	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$701.97K 137,103 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ Nov 4, 2026	▾
03	ACADIAN ASSET MANAGEMENT LLC CIK 916542 · View history	$672.00K 131,733 shares	0.00%	+4.87K(+3.80%)Added	SEC filing ↗ Nov 9, 2026	▾
04	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$490.41K 95,660 shares	0.00%	-1.19K(-1.20%)Reduced	SEC filing ↗ Nov 6, 2026	▾
05	ESSEX INVESTMENT MANAGEMENT CO LLC CIK 201772 · View history	$242.09K 47,283 shares	0.04%	+13.02K(+38.00%)Added	SEC filing ↗ Oct 19, 2026	▾
06	STATE STREET CORP CIK 93751 · View history	$229.52K 44,829 shares	0.00%	-2.13K(-4.50%)Reduced	SEC filing ↗ Nov 12, 2026	▾
07	Hillsdale Investment Management Inc. CIK 1368465 · View history	$172.78K 33,746 shares	0.00%	+33.75KNew	SEC filing ↗ Nov 12, 2026	▾
08	Squarepoint Ops LLC CIK 1642575 · View history	$153.18K 29,918 shares	0.00%	+29.92KNew	SEC filing ↗ Nov 9, 2026	▾
09	JANE STREET GROUP, LLC CIK 1595888 · View history	$110.00K 21,485 shares	0.00%	+8.44K(+64.70%)Added	SEC filing ↗ Nov 12, 2026	▾
10	Legato Capital Management LLC CIK 1442641 · View history	$57.16K 11,165 shares	0.01%	+11.16KNew	SEC filing ↗ Nov 10, 2026	▾
11	JAMES INVESTMENT RESEARCH, INC. CIK 810384 · View history	$56.58K 11,050 shares	0.01%	0(0.00%)Unchanged	SEC filing ↗ Oct 22, 2026	▾
12	LOM Asset Management Ltd CIK 2077907 · View history	$30.72K 6,000 shares	0.01%	+6.00KNew	SEC filing ↗ Nov 12, 2026	▾
13	LSV ASSET MANAGEMENT CIK 1050470 · View history	$13.00K 2,500 shares	0.00%	+2.50KNew	SEC filing ↗ Nov 6, 2026	▾
14	SIMPLEX TRADING, LLC CIK 1488542 · View history	$12.86K 2,511 shares	0.00%	-14.26K(-85.00%)Reduced	SEC filing ↗ Nov 4, 2026	▾
15	OSAIC HOLDINGS, INC. CIK 1677044 · View history	$10.33K 1,980 shares	0.00%	-1.80K(-47.60%)Reduced	SEC filing ↗ Nov 12, 2026	▾
16	Nuveen, LLC CIK 1871926 · View history	$5.18K 993 shares	0.00%	+993New	SEC filing ↗ Nov 10, 2026	▾
17	Fortitude Family Office, LLC CIK 1950506 · View history	$4.63K 905 shares	0.00%	+905New	SEC filing ↗ Oct 14, 2026	▾
18	BARCLAYS PLC CIK 312069 · View history	$2.26K 442 shares	0.00%	+16(+3.80%)Added	SEC filing ↗ Nov 6, 2026	▾
19	Farther Finance Advisors, LLC CIK 1992825 · View history	$1.86K 363 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ Oct 8, 2026	▾
20	SBI Securities Co., Ltd. CIK 1851815 · View history	$1.29K 252 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ Oct 22, 2026	▾

Showing 20 / 28 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

1,112,556

Not deduplicated across managers

Disclosed value

$5.69M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

ALPHA PRO TECH LTD · Q3 2026

Explore all 28 reporting institutions.

This page includes 20 of 28 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.