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Alpha Pro Tech, Ltd. (APT) institutional ownership

Latest close $5.21 Jul 20, 2026
Market cap$52M 52-week range SectorIndustrials
Funds holding · Q1 2026
21
reported APT position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Activity unavailable N/A
10 buyers · 11 sellers

Alpha Pro Tech, Ltd. (APT) price and institutional activity

Dates

Q1 2026

$0 bought by 10 investors
Group One Trading LLCSusquehanna International Group, LLP +8 more
$0 sold by 11 investors
GeodeCitadel Advisors LLC +9 more
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Bought Sold Totals per quarter; hover a bar for the names.

Alpha Pro Tech, Ltd. (APT) institutional activity · 21

Investor Type Est. change Change Δ Own Date
Group One Trading LLC · New
Change +113K Date Q1 2026
Group One Trading LLC New· Q1 2026 +113K Q1 2026
Susquehanna International Group, LLP · Added
Change +73K Date Q1 2026
Susquehanna International Group, LLP Added· Q1 2026 +73K Q1 2026
Jane Street Group, LLC · New
Change +26K Date Q1 2026
Jane Street Group, LLC New· Q1 2026 +26K Q1 2026
Geode · Reduced
Change −24K Date Q1 2026
Geode Reduced· Q1 2026 −24K Q1 2026
Citadel Advisors LLC Exited· Q1 2026 −21K −100.0% Q1 2026
Renaissance Technologies LLC Added· Q1 2026 +21K +4.0% Q1 2026
Osaic Holdings, Inc. · Reduced
Change −19K Date Q1 2026
Osaic Holdings, Inc. Reduced· Q1 2026 −19K Q1 2026
Xtx Topco Ltd · New
Change +15K Date Q1 2026
Xtx Topco Ltd New· Q1 2026 +15K Q1 2026
Newedge Advisors, LLC · Reduced
Change −14K Date Q1 2026
Newedge Advisors, LLC Reduced· Q1 2026 −14K Q1 2026
Bank of America Corp · Exited
Change −7K Δ Own −100.0% Date Q1 2026
Bank of America Corp Exited· Q1 2026 −7K −100.0% Q1 2026
Federation des Caisses Desjardins du Quebec · Exited
Change −2K Δ Own −100.0% Date Q1 2026
Federation des Caisses Desjardins du Quebec Exited· Q1 2026 −2K −100.0% Q1 2026
BlackRock · Added
Change +1K Date Q1 2026
BlackRock Added· Q1 2026 +1K Q1 2026
Garton & Associates Financial Advisors LLC · Exited
Change −1K Δ Own −100.0% Date Q1 2026
Garton & Associates Financial Advisors LLC Exited· Q1 2026 −1K −100.0% Q1 2026
JPMorgan Chase & Co · Reduced
Change −566 Date Q1 2026
JPMorgan Chase & Co Reduced· Q1 2026 −566 Q1 2026
Tower Research Capital LLC (trc) · Reduced
Change −504 Date Q1 2026
Tower Research Capital LLC (trc) Reduced· Q1 2026 −504 Q1 2026
Data through Q1 2026 · filed Jun 3, 2026
15 of 21

Famous investor activity in Alpha Pro Tech, Ltd. (APT)

Alpha Pro Tech, Ltd. (APT) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Garcia David R. · Director 2 operations -6K
Owned 3K Trade date May 19, 2026 Filed date May 19, 2026
Garcia David R. Director 2 operations -6K 3K May 19, 2026 May 19, 2026
Garcia David R. · Director Sell −$34K
Price $5.56 Qty −6K Owned 20K Trade date May 15, 2026 Filed date May 19, 2026
Garcia David R. Director Sell $5.56 −6K −$34K 20K May 15, 2026 May 19, 2026
Garcia David R. · Director 5 operations 5K
Price $3.99–$4.23 Owned 26K Trade date May 15, 2026 Filed date May 19, 2026
Garcia David R. Director 5 operations $3.99–$4.23 5K 26K May 15, 2026 May 19, 2026
Garcia David R. · Director Sell −$29K
Price $5.88 Qty −5K Owned 20K Trade date May 14, 2026 Filed date May 18, 2026
Garcia David R. Director Sell $5.88 −5K −$29K 20K May 14, 2026 May 18, 2026
Montgomery Charles D. · Director 4 operations −$125K
Price $6.04–$6.35 Qty −20K Owned 25K Trade date May 12, 2026 Filed date May 13, 2026
Montgomery Charles D. Director 4 operations $6.04–$6.35 −20K −$125K 25K May 12, 2026 May 13, 2026
Montgomery Charles D. · Director Sell −$27K
Price $7.03 Qty −4K Owned 45K Trade date May 11, 2026 Filed date May 13, 2026
Montgomery Charles D. Director Sell $7.03 −4K −$27K 45K May 11, 2026 May 13, 2026
Ritota John · Director Sell −$11K
Price $4.94 Qty −2K Owned 41K Trade date Mar 17, 2026 Filed date Mar 18, 2026
Ritota John Director Sell $4.94 −2K −$11K 41K Mar 17, 2026 Mar 18, 2026
Ritota John · Director Sell −$23K
Price $4.84 Qty −5K Owned 44K Trade date Mar 16, 2026 Filed date Mar 18, 2026
Ritota John Director Sell $4.84 −5K −$23K 44K Mar 16, 2026 Mar 18, 2026
Hoffman Lloyd · Director, Officer Grant (A) 12K
Owned 256K Trade date Jan 5, 2026 Filed date Jan 7, 2026
Hoffman Lloyd Director, Officer Grant (A) 12K 256K Jan 5, 2026 Jan 7, 2026
Buchan James · Director Sell −$22K
Price $4.61 Qty −5K Owned 6K Trade date Dec 5, 2025 Filed date Dec 8, 2025
Buchan James Director Sell $4.61 −5K −$22K 6K Dec 5, 2025 Dec 8, 2025
Ritota John · Director Grant (A) 6K
Owned 48K Trade date Sep 29, 2025 Filed date Oct 1, 2025
Ritota John Director Grant (A) 6K 48K Sep 29, 2025 Oct 1, 2025
Buchan James · Director Grant (A) 6K
Owned 10K Trade date Sep 29, 2025 Filed date Sep 30, 2025
Buchan James Director Grant (A) 6K 10K Sep 29, 2025 Sep 30, 2025
Shaw Benjamin A. · Director Grant (A) 5K
Owned 10K Trade date Sep 29, 2025 Filed date Sep 30, 2025
Shaw Benjamin A. Director Grant (A) 5K 10K Sep 29, 2025 Sep 30, 2025
Garcia David R. · Director Grant (A) 6K
Owned 20K Trade date Sep 29, 2025 Filed date Sep 30, 2025
Garcia David R. Director Grant (A) 6K 20K Sep 29, 2025 Sep 30, 2025
Buchan James · Director 2 operations −$46K
Price $4.81–$4.88 Qty −9K Owned 11K Trade date Sep 9, 2025 Filed date Sep 11, 2025
Buchan James Director 2 operations $4.81–$4.88 −9K −$46K 11K Sep 9, 2025 Sep 11, 2025
15 of 15

Alpha Pro Tech, Ltd. (APT) activist and large shareholders

What are Schedules 13D and 13G?

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
Millar Donna 1.3M
% of shares outstanding 11.7% Filing date Feb 12, 2025
Millar Donna 1.3M 11.7% Feb 12, 2025
Needham Investment Management LLC 642K
% of shares outstanding 6.2% Filing date Feb 13, 2026
Needham Investment Management LLC 642K 6.2% Feb 13, 2026
Vanguard Capital Management LLC 609K
% of shares outstanding 6.0% Filing date Apr 28, 2026
Vanguard Capital Management LLC 609K 6.0% Apr 28, 2026
Renaissance Technologies LLC 589K
% of shares outstanding 5.0% Filing date Feb 13, 2024
Renaissance Technologies LLC 589K 5.0% Feb 13, 2024
BlackRock Inc. 215K
% of shares outstanding 1.6% Filing date Jul 12, 2021
BlackRock Inc. 215K 1.6% Jul 12, 2021
Susquehanna Securities, LLC 172K
% of shares outstanding 1.4% Filing date Feb 14, 2023
Susquehanna Securities, LLC 172K 1.4% Feb 14, 2023
Hutch Onshore LLC 5
% of shares outstanding 0.1% Filing date Feb 12, 2024
Hutch Onshore LLC 5 0.1% Feb 12, 2024
Vanguard Group Inc 0
% of shares outstanding 0.0% Filing date Mar 26, 2026
Vanguard Group Inc 0 0.0% Mar 26, 2026
8 of 8

Alpha Pro Tech, Ltd. (APT) ownership FAQ

Who owns APT?

21 reporting institutions disclosed APT position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.