Alpha Pro Tech APT Institutional Ownership

NYSE APT

$5.27 -0.01 (-0.19%)

As of: Sep 9, 2026 · 3:59 PM EDT

Institutions by Trading Activity

41 Institutions

Increased 18 43.9%

Unchanged 12 29.3%

Reduced 11 26.8%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

30.15%

▲+0.30 pp QoQ

Shares Held by Institutions

3.05Mn

of 10.12Mn outstanding

▲+1.44% QoQ

Shares Outstanding

10.12Mn

7.07Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▲+5 vs prior quarter

Net Shares Added (QoQ)

+43.22K

accumulated since last quarter

Value of Holdings

$16.17Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Alpha Pro Tech Ltd (NYSE:APT) appears in 41 institutional 13F filings for the quarter ending June 2026.

Collectively, these holders controlled 30.1% of Alpha Pro Tech's outstanding shares in June 2026, up from 29.9% in March 2026.
They increased total shares held in Alpha Pro Tech by 1.44% from the prior quarter, while the number of investors in APT increased 20.59% year over year.
Of these 41 funds, 18 grew their exposure to Alpha Pro Tech, 11 cut back, and 12 maintained positions.
Altogether, these fund groups held 3.05Mn shares in APT by June 2026, up by 43.22K shares quarter on quarter, and up 68.51K shares year over year.
As of June 30, 2026, the biggest holder of Alpha Pro Tech is NEEDHAM INVESTMENT MANAGEMENT LLC at 642.5K shares, representing 6.35% of shares outstanding.
Leading buyers of Alpha Pro Tech shares for the quarter ending June 2026 were SUSQUEHANNA INTERNATIONAL GROUP, LLP (101.47K), MARSHALL WACE, LLP (52.11K), GEODE CAPITAL MANAGEMENT, LLC (28.47K), RENAISSANCE TECHNOLOGIES LLC (17.5K), SIMPLEX TRADING, LLC (16.77K).
The biggest sellers of Alpha Pro Tech for the quarter ending June 2026 included GROUP ONE TRADING LLC (110.99K), VANGUARD CAPITAL MANAGEMENT LLC (41.2K), BRIDGEWAY CAPITAL MANAGEMENT, LLC (14.0K), Pinnacle Financial Partners, Inc. (12.6K), JANE STREET GROUP, LLC (12.58K).
Per Business Quant data, the top 10 holders of Alpha Pro Tech for the quarter ending June 2026 are NEEDHAM INVESTMENT MANAGEMENT LLC (642.5K), RENAISSANCE TECHNOLOGIES LLC (561.57K), VANGUARD CAPITAL MANAGEMENT LLC (512.48K), BlackRock, Inc. (278.69K), SUSQUEHANNA INTERNATIONAL GROUP, LLP (242.7K), DIMENSIONAL FUND ADVISORS LP (137.1K), ACADIAN ASSET MANAGEMENT LLC (126.87K), GEODE CAPITAL MANAGEMENT, LLC (96.85K), BRIDGEWAY CAPITAL MANAGEMENT, LLC (64.53K), ARROWSTREET CAPITAL, LIMITED PARTNERSHIP (58.31K).

Form 13F Holdings

41 Institutional Holders

Report period 30 Jun, 2026

Total shares held 3.05Mn

Of outstanding 30.15%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	NEEDHAM INVESTMENT MANAGEMENT LLC	0001167212	642,500	6.35%	0	0.00%	$3.61Mn
2	RENAISSANCE TECHNOLOGIES LLC	0001037389	561,572	5.55%	▲17,500	+3.22%	$3.16Mn
3	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	512,476	5.06%	▼41,198	-7.44%	$2.88Mn
4	BlackRock, Inc.	0002012383	278,687	2.75%	▲6,887	+2.53%	$1.57Mn
5	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0001446194	242,699	2.40%	▲101,473	+71.85%	$1.36Mn
6	DIMENSIONAL FUND ADVISORS LP	0000354204	137,103	1.35%	▼232	-0.17%	$770.52K
7	ACADIAN ASSET MANAGEMENT LLC	0000916542	126,866	1.25%	▼6,486	-4.86%	$712
8	GEODE CAPITAL MANAGEMENT, LLC	0001214717	96,853	0.96%	▲28,467	+41.63%	$545.00K
9	BRIDGEWAY CAPITAL MANAGEMENT, LLC	0001107261	64,525	0.64%	▼14,000	-17.83%	$362.63K
10	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	0001164508	58,309	0.58%	0	0.00%	$327.70K
11	MARSHALL WACE, LLP	0001318757	52,113	0.51%	▲52,113	0.00%	$292.87K
12	VANGUARD FIDUCIARY TRUST CO	0000933478	51,788	0.51%	▲356	+0.69%	$291.05K
13	State Street Corp	0000093751	46,957	0.46%	0	0.00%	$263.90K
14	ESSEX INVESTMENT MANAGEMENT CO LLC	0000201772	34,264	0.34%	▼111	-0.32%	$192.56K
15	Northern Trust Corp	0000073124	20,697	0.20%	▲2,623	+14.51%	$116.32K
16	XTX Topco Ltd	0001828301	17,217	0.17%	▲2,500	+16.99%	$96.76K
17	SIMPLEX TRADING, LLC	0001488542	16,772	0.17%	▲16,772	0.00%	$94.26K
18	PRICE T ROWE ASSOCIATES INC /MD/	0000080255	16,000	0.16%	0	0.00%	$90
19	JANE STREET GROUP, LLC	0001595888	13,047	0.13%	▼12,583	-49.09%	$73.32K
20	Pinnacle Financial Partners, Inc.	0002082866	12,400	0.12%	▼12,600	-50.40%	$69.69K

Showing 1 to 20 of 41 holders