APT
Alpha Pro Tech Ltd
$5.16
-0.14 (-2.64%)
At close · Jul 17
Market Cap
$52.72M
Shares
10,216,932
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
The Jun 30, 2026 filing window is
still open — showing the latest known positions. Funds that have not filed yet
carry their prior-quarter positions; a fund that filed without this stock counts
as sold out.
Holders: 38
Total Value: $18,300,696
Total Shares: 4,121,686
Institutional Ownership Trend
26 quarters
Holder Concentration
Across 38 13F filersTop Holder
19.1%
of institutional value
Top 5
71.5%
of institutional value
Top 10
89.3%
of institutional value
HHI
1,151
Broadly held
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Mid NEEDHAM INVESTMENT MANAGEMENT LLC | $2,852,700 | 15.59% | 642,500 | Shares | Defined | 2026-05-15 | ||||
| Mega CITADEL ADVISORS LLC | $2,611,608 | 14.27% | 588,200 | Put | Defined | 2026-05-15 | ||||
| Mega VANGUARD CAPITAL MANAGEMENT LLC | $2,458,312 | 13.43% | 553,674 | Shares | Defined | 2026-05-15 | ||||
| Large RENAISSANCE TECHNOLOGIES LLC | $2,415,679 | 13.20% | 544,072 | Shares | Sole | 2026-05-14 | ||||
| Mega BlackRock, Inc. | $1,206,790 | 6.59% | 271,800 | Shares | Sole | 2026-05-13 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1,091,352 | 5.96% | 245,800 | Call | Other | 2026-05-15 | ||||
| Mega CITADEL ADVISORS LLC | $875,124 | 4.78% | 197,100 | Call | Defined | 2026-05-15 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $627,043 | 3.43% | 141,226 | Shares | Other | 2026-05-15 | ||||
| Mega DIMENSIONAL FUND ADVISORS LP | $609,766 | 3.33% | 137,335 | Shares | Sole | 2026-05-07 | ||||
| Large ACADIAN ASSET MANAGEMENT LLC | $592,082 | 3.24% | 133,352 | Shares | Defined | 2026-05-13 | ||||
| Mid GROUP ONE TRADING LLC | $502,035 | 2.74% | 113,071 | Shares | Sole | 2026-05-13 | ||||
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC | $348,651 | 1.91% | 78,525 | Shares | Sole | 2026-05-15 | ||||
| Mega GEODE CAPITAL MANAGEMENT, LLC | $303,633 | 1.66% | 68,386 | Shares | Defined | 2026-05-15 | ||||
| Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $258,891 | 1.41% | 58,309 | Shares | Defined | 2026-05-14 | ||||
| Mega VANGUARD FIDUCIARY TRUST CO Bank | $228,358 | 1.25% | 51,432 | Shares | Defined | 2026-05-08 | ||||
| Mega STATE STREET CORP | $208,489 | 1.14% | 46,957 | Shares | Defined | 2026-05-15 | ||||
| Small ESSEX INVESTMENT MANAGEMENT CO LLC | $152,625 | 0.83% | 34,375 | Shares | Sole | 2026-05-11 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $146,964 | 0.80% | 33,100 | Put | Other | 2026-05-15 | ||||
| Mega JANE STREET GROUP, LLC | $113,796 | 0.62% | 25,630 | Shares | Defined | 2026-05-12 | ||||
| Mid Pinnacle Financial Partners, Inc. | $111,000 | 0.61% | 25,000 | Shares | Defined | 2026-05-14 | ||||
| Large NewEdge Advisors, LLC | $82,988 | 0.45% | 18,691 | Shares | Sole | 2026-06-03 | ||||
| Mega NORTHERN TRUST CORP Bank | $80,248 | 0.44% | 18,074 | Shares | Defined | 2026-05-14 | ||||
| Small CALDWELL SUTTER CAPITAL, INC. | $72,087 | 0.39% | 16,236 | Shares | Sole | 2026-05-06 | ||||
| Mega PRICE T ROWE ASSOCIATES INC /MD/ | $71,040 | 0.39% | 16,000 | Shares | Defined | 2026-05-15 | ||||
| Mid XTX Topco Ltd | $65,343 | 0.36% | 14,717 | Shares | Defined | 2026-05-15 | ||||
| Mega JANE STREET GROUP, LLC | $64,380 | 0.35% | 14,500 | Call | Defined | 2026-05-12 | ||||
| Small JAMES INVESTMENT RESEARCH, INC. | $49,062 | 0.27% | 11,050 | Shares | Sole | 2026-04-24 | ||||
| Mega MORGAN STANLEY | $38,920 | 0.21% | 8,766 | Shares | Defined | 2026-05-15 | ||||
| Large OSAIC HOLDINGS, INC. | $21,223 | 0.12% | 4,780 | Shares | Defined | 2026-05-15 | ||||
| Mega Vanguard Global Advisers, LLC | $17,586 | 0.10% | 3,961 | Shares | Defined | 2026-05-08 | ||||
| Mega WELLS FARGO & COMPANY/MN | $13,324 | 0.07% | 3,001 | Shares | Defined | 2026-05-11 | ||||
| Mid Tower Research Capital LLC (TRC) | $2,850 | 0.02% | 642 | Shares | Defined | 2026-05-15 | ||||
| Mid Farther Finance Advisors, LLC | $2,040 | 0.01% | 363 | Shares | Sole | 2026-07-17 | ||||
| Mega BARCLAYS PLC | $1,891 | 0.01% | 426 | Shares | Defined | 2026-05-15 | ||||
| Mid SBI Securities Co., Ltd. Broker-Dealer | $1,118 | 0.01% | 252 | Shares | Defined | 2026-04-28 | ||||
| Large JONES FINANCIAL COMPANIES LLLP | $666 | 0.00% | 150 | Shares | Sole | 2026-05-15 | ||||
| Large CWM, LLC | $444 | 0.00% | 100 | Shares | Sole | 2026-05-14 | ||||
| Mega JPMORGAN CHASE & CO | $177 | 0.00% | 40 | Shares | Defined | 2026-05-13 | ||||
| Large TD Waterhouse Canada Inc. | $177 | 0.00% | 40 | Shares | Defined | 2026-05-12 | ||||
| Small Archer Investment Corp | $173 | 0.00% | 39 | Shares | Sole | 2026-05-04 | ||||
| Mega BNP PARIBAS ARBITRAGE, SA | $57 | 0.00% | 13 | Shares | Defined | 2026-05-12 | ||||
| Mega CITIGROUP INC | $4 | 0.00% | 1 | Shares | Defined | 2026-05-11 | ||||
| No holders match your search. | ||||||||||