Quick Takeaways
- APT - ALPHA PRO TECH LTD has 9 insiders with reported activity on this page.
- Net insider value flow over the last year: -$254,004.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 9 Insiders of ALPHA PRO TECH LTD
- Symbol
- APT on NYSE
- Location
- Aurora
What Changed
- Buy value: ; sell value: $254,003.
- Net share flow: -45,039.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Source Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$254,004.
Buys
$0
Shares: 0
Insiders: 0
Sells
$254,004
Shares: 45,039
Insiders: 3
Net
-$254,004
Shares: -45,039
Insiders: -3
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 30,886 | $0 | $186,428 | -$186,428 |
| 3-6 | 0 | 4,740 | $0 | $21,851 | -$21,851 |
| 6-9 | 0 | 9,413 | $0 | $45,725 | -$45,725 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
ALPHA PRO TECH LTD executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Donna Millar | Director, 10%+ Owner | $4,704,563 | Mixed | 18 Mar 2024 | ||
| Lloyd Hoffman | CEO AND PRESIDENT, Director | $1,188,144 | Mixed | 05 Jan 2026 | ||
| Colleen J. Mcdonald | Cfo | $346,165 | Filing P/S | 21 Mar 2024 | ||
| Dr. John Ritota | Director | $260,817 | -$34,109 | -12% | Mixed | 16 Mar 2026 |
| Russell Manock | Director | $191,909 | Mixed | 23 Sep 2022 | ||
| Charles D. Montgomery | Director | $152,697 | -$152,319 | -50% | Filing P/S | 11 May 2026 |
| David R. Garcia | Director | $95,677 | Mixed | 29 Sep 2025 | ||
| Benjamin A. Shaw | Director | $50,118 | Mixed | 29 Sep 2025 | ||
| James Buchan | Director | $25,885 | -$67,576 | -72% | Filing P/S | 05 Dec 2025 |
Top shareholders of ALPHA PRO TECH LTD (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Donna Millar |
13D/G
3/4/5
|
Millar Donna · Director, 10%+ Owner |
12%
|
1,284,603
|
$5,356,795 | $0 | 13 Dec 2018 | |
| NEEDHAM INVESTMENT MANAGEMENT LLC |
13D/G
13F
|
NEEDHAM INVESTMENT MANAGEMENT L.L.C. · Company |
6.2%
|
642,500
|
$3,026,175 | $0 | 31 Dec 2025 | |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
|
Vanguard Capital Management · Company |
6%
|
609,067
|
$2,801,830 | $0 | 31 Mar 2026 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
|
Company |
5.3%
|
544,072
|
$2,415,680 | — | 31 Mar 2026 | |
| BlackRock, Inc. |
13F
|
Company |
2.7%
|
271,800
|
$1,206,792 | — | 31 Mar 2026 | |
| Lloyd Hoffman |
3/4/5
|
CEO AND PRESIDENT, Director |
2.5%
|
255,515
|
$1,188,144 | — | 05 Jan 2026 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
1.4%
|
141,226
|
$627,043 | — | 31 Mar 2026 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
1.3%
|
137,335
|
$609,767 | — | 31 Mar 2026 | |
| ACADIAN ASSET MANAGEMENT LLC |
13F
|
Company |
1.3%
|
133,352
|
$591,000 | — | 31 Mar 2026 | |
| GROUP ONE TRADING LLC |
13F
|
Company |
1.1%
|
113,071
|
$502,035 | — | 31 Mar 2026 | |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.77%
|
78,525
|
$348,651 | — | 31 Mar 2026 | |
| Colleen J. Mcdonald |
3/4/5
|
CFO |
—
class O/S missing
|
55,833
|
$346,165 | — | 21 Mar 2024 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.67%
|
68,386
|
$304,142 | — | 31 Mar 2026 | |
| Dr. John Ritota |
3/4/5
|
Director |
0.52%
|
53,355
|
$260,817 | -$34,109 | 16 Mar 2026 | |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP |
13F
|
Company |
0.57%
|
58,309
|
$258,892 | — | 31 Mar 2026 | |
| VANGUARD FIDUCIARY TRUST CO |
13F
|
Company |
0.5%
|
51,432
|
$228,358 | — | 31 Mar 2026 | |
| STATE STREET CORP |
13F
|
Company |
0.46%
|
46,957
|
$208,489 | — | 31 Mar 2026 | |
| Russell Manock |
3/4/5
|
Director |
—
mixed-class rows
|
44,313
mixed-class rows
|
$191,909 | — | 23 Sep 2022 | |
| Charles D. Montgomery |
3/4/5
|
Director |
0.25%
|
25,281
|
$152,697 | -$152,319 | 11 May 2026 | |
| ESSEX INVESTMENT MANAGEMENT CO LLC |
13F
|
Company |
0.34%
|
34,375
|
$152,625 | — | 31 Mar 2026 | |
| JANE STREET GROUP, LLC |
13F
|
Company |
0.25%
|
25,630
|
$113,796 | — | 31 Mar 2026 | |
| Pinnacle Financial Partners, Inc. |
13F
|
Company |
0.25%
|
25,000
|
$111,000 | — | 31 Mar 2026 | |
| David R. Garcia |
3/4/5
|
Director |
0.19%
|
19,768
|
$95,677 | — | 29 Sep 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.18%
|
18,074
|
$80,249 | — | 31 Mar 2026 | |
| CALDWELL SUTTER CAPITAL, INC. |
13F
|
Company |
0.16%
|
16,236
|
$72,088 | — | 31 Mar 2026 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
0.16%
|
16,000
|
$72,000 | — | 31 Mar 2026 | |
| XTX Topco Ltd |
13F
|
Company |
0.14%
|
14,717
|
$65,343 | — | 31 Mar 2026 | |
| Benjamin A. Shaw |
3/4/5
|
Director |
0.1%
|
10,355
|
$50,118 | — | 29 Sep 2025 | |
| JAMES INVESTMENT RESEARCH, INC. |
13F
|
Company |
0.11%
|
11,050
|
$49,062 | — | 31 Mar 2026 | |
| MORGAN STANLEY |
13F
|
Company |
0.09%
|
8,766
|
$38,921 | — | 31 Mar 2026 | |
| James Buchan |
3/4/5
|
Director |
0.06%
|
5,615
|
$25,885 | -$67,576 | 05 Dec 2025 | |
| OSAIC HOLDINGS, INC. |
13F
|
Company |
0.05%
|
4,780
|
$21,223 | — | 31 Mar 2026 | |
| Vanguard Global Advisers, LLC |
13F
|
Company |
0.04%
|
3,961
|
$17,587 | — | 31 Mar 2026 | |
| WELLS FARGO & COMPANY/MN |
13F
|
Company |
0.03%
|
3,001
|
$13,322 | — | 31 Mar 2026 | |
| Tower Research Capital LLC (TRC) |
13F
|
Company |
0.01%
|
642
|
$2,850 | — | 31 Mar 2026 | |
| BARCLAYS PLC |
13F
|
Company |
0%
|
426
|
$1,891 | — | 31 Mar 2026 | |
| Farther Finance Advisors, LLC |
13F
|
Company |
0%
|
363
|
$1,728 | — | 31 Mar 2026 | |
| SBI Securities Co., Ltd. |
13F
|
Company |
0%
|
252
|
$1,119 | — | 31 Mar 2026 | |
| JONES FINANCIAL COMPANIES LLLP |
13F
|
Company |
0%
|
150
|
$660 | — | 31 Mar 2026 | |
| CWM, LLC |
13F
|
Company |
0%
|
100
|
$444 | — | 31 Mar 2026 | |
| TD Waterhouse Canada Inc. |
13F
|
Company |
0%
|
40
|
$186 | — | 31 Mar 2026 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0%
|
40
|
$182 | — | 31 Mar 2026 | |
| Archer Investment Corp |
13F
|
Company |
0%
|
39
|
$173 | — | 31 Mar 2026 | |
| BNP PARIBAS FINANCIAL MARKETS |
13F
|
Company |
0%
|
13
|
$58 | — | 31 Mar 2026 | |
| CITIGROUP INC |
13F
|
Company |
0%
|
1
|
$4 | — | 31 Mar 2026 |
Recent Insider Transactions by Companies or Individuals for ALPHA PRO TECH LTD
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Charles D. Montgomery | APT | common stock | Sale | -44.2% | $125,000 | $6.25 | -20,000 | 25,281 | 12 May 2026 | Direct |
| Charles D. Montgomery | APT | common stock | Sale | -7.9% | $27,319 | $7.03 | -3,886 | 45,281 | 11 May 2026 | Direct |
| Dr. John Ritota | APT | Common Stock | Sale | -5.18% | $11,165 | $4.94 | -2,260 | 41,355 | 17 Mar 2026 | Direct |
| Dr. John Ritota | APT | Common Stock | Sale | -9.8% | $22,944 | $4.84 | -4,740 | 43,615 | 16 Mar 2026 | Direct |
| Lloyd Hoffman | APT | Common stock | Award | 5.11% | 12,425 | 255,515 | 05 Jan 2026 | Direct | ||
| James Buchan | APT | Common Stock | Sale | -45.8% | $21,851 | $4.61 | -4,740 | 5,615 | 05 Dec 2025 | Direct |
| Dr. John Ritota | APT | Common Stock | Award | 13.1% | 5,615 | 48,355 | 29 Sep 2025 | Direct | ||
| James Buchan | APT | Common Stock | Award | 118.5% | 5,615 | 10,355 | 29 Sep 2025 | Direct | ||
| Benjamin A. Shaw | APT | common stock | Award | 118.5% | 5,615 | 10,355 | 29 Sep 2025 | Direct | ||
| David R. Garcia | APT | common stock | Award | 39.7% | 5,615 | 19,768 | 29 Sep 2025 | Direct | ||
| James Buchan | APT | Common Stock | Sale | -66.5% | $45,725 | $4.86 | -9,413 | 4,740 | 09 Sep 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.