APT
ALPHA PRO TECH LTD
Orthopedic, Prosthetic & Surgical Appliances & SuppliesNYSENon-accelerated filer<br>Smaller reporting company
Total Trades
15
Buys
0
Sells
11
Largest Trade
$100K–$500K
Insiders
3
Institutional Funds
27
Inst. Value
$1M+
Activist Filings
9
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Buchan James | Director | SELL | $15K–$50K | 5K | $4.61 | Dec 8, 2025 |
| Buchan James | Director | SELL | $15K–$50K | 9K | $4.86 | Sep 11, 2025 |
| RITOTA JOHN | Director | SELL | $100K–$500K | 15K | $14.25 | Apr 24, 2025 |
| RITOTA JOHN | Director | SELL | $100K–$500K | 15K | $14.25 | Apr 24, 2025 |
| RITOTA JOHN | Director | SELL | $15K–$50K | 9K | $5.15 | Mar 20, 2025 |
| MCDONALD COLLEEN J | CFO | SELL | $100K–$500K | 20K | $6.16 | Mar 25, 2024 |
| RITOTA JOHN | Director | EXERCISE | $50K–$100K | 15K | $3.42 | Mar 22, 2024 |
| RITOTA JOHN | Director | SELL | $15K–$50K | 7K | $5.97 | Mar 22, 2024 |
| Buchan James | Director | SELL | $15K–$50K | 10K | $4.46 | Sep 12, 2023 |
| Buchan James | Director | EXERCISE | $15K–$50K | 10K | $3.60 | Sep 12, 2023 |
| RITOTA JOHN | Director | SELL | $15K–$50K | 5K | $4.15 | Nov 16, 2022 |
| RITOTA JOHN | Director | EXERCISE | $15K–$50K | 5K | $3.90 | Nov 16, 2022 |
| Buchan James | Director | EXERCISE | $15K–$50K | 8K | $3.66 | Sep 22, 2022 |
| Buchan James | Director | SELL | $15K–$50K | 8K | $3.92 | Sep 22, 2022 |
| RITOTA JOHN | Director | SELL | $15K–$50K | 9K | $4.50 | May 25, 2022 |
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Institutional Ownership
13F filings as of Dec 31, 2025 · 27 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC | 523K | $1M+ | SH |
| ACADIAN ASSET MANAGEMENT LLC | 133K | $500K+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 125K | $500K+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 73K | $100K–$500K | SH |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 58K | $100K–$500K | SH |
| STATE STREET CORP | 47K | $100K–$500K | SH |
| BlackRock, Inc. | 44K | $100K–$500K | SH |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 34K | $100K–$500K | SH |
| NewEdge Advisors, LLC | 33K | $100K–$500K | SH |
| Pinnacle Financial Partners, Inc. | 25K | $100K–$500K | SH |
| Pinnacle Financial Partners, Inc. | 25K | $100K–$500K | SH |
| JANE STREET GROUP, LLC | 21K | $50K–$100K | SH (Call) |
| CALDWELL SUTTER CAPITAL, INC. | 16K | $50K–$100K | SH |
| JAMES INVESTMENT RESEARCH, INC. | 11K | $15K–$50K | SH |
| VANGUARD GROUP INC | 4K | $15K–$50K | SH |
| WELLS FARGO & COMPANY/MN | 3K | $1K–$15K | SH |
| Federation des caisses Desjardins du Quebec | 2K | $1K–$15K | SH |
| Garton & Associates Financial Advisors LLC | 1K | $1K–$15K | SH |
| JPMORGAN CHASE & CO | 566 | $1K–$15K | SH |
| BARCLAYS PLC | 426 | $1K–$15K | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
NEEDHAM INVESTMENT MANAGEMENT L.L.C.
SC 13G/A · Feb 13, 2026
6.2%
643K shares
SC 13D/A · Feb 12, 2025
11.7%
1.3M shares
Needham Investment Management L.L.C.
SC 13G · May 30, 2024
5.1%
600K shares
The Vanguard Group - 23-1945930
SC 13G · Feb 13, 2024
5.8%
674K shares
Renaissance Technologies LLC 26-0385758
SC 13G · Feb 13, 2024
5.0%
589K shares
SC 13G/A · Feb 14, 2023
1.4%
172K shares
SC 13D/A · Feb 10, 2023
10.2%
1.3M shares
SC 13D/A · Mar 2, 2022
9.7%
1.3M shares
Renaissance Technologies LLC 26-0385758
SC 13G/A · Feb 10, 2022
4.6%
611K shares