APT · Alpha Pro Tech Ltd · Holdings
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.
Institutional Ownership Trend
Holder Concentration
Across 42 13F filersWho Holds APT
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 41 filers, like-for-like change +0.3%; actively managed books +0.6%; index-like books -0.3%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 70.5% | 15 | -1.5% |
| Exempt adviser | 1.7% | 1 | new |
| Bank | 2.8% | 7 | -7.6% |
| Broker-dealer | 0.1% | 1 | -98.2% |
| Non-US | 0.0% | 2 | 0.0% |
| Holding company | 9.5% | 4 | +2.0% |
| Adviser | 0.0% | 0 | — |
| Unknown | 15.4% | 11 | +27.8% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 33.3% | 7 | -0.3% |
| Systematic-like | 2.4% | 4 | -43.9% |
| Concentrated | 0.0% | 1 | -98.0% |
| Diversified active | 64.4% | 29 | +3.6% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 41.8% | 20 | +0.8% |
| Medium turnover | 27.9% | 9 | +0.3% |
| High turnover | 11.3% | 8 | +16.7% |
| Unknown | 19.0% | 4 | -8.4% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 19.6% | 6 | -7.8% |
| Medium horizon | 9.7% | 3 | +8.7% |
| Long horizon | 67.8% | 29 | +4.8% |
| Unknown | 2.9% | 3 | -40.0% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 1.5% | 5 | -26.5% |
| $1B to $10B | 24.4% | 8 | -12.4% |
| $10B to $100B | 25.2% | 8 | +5.8% |
| $100B or more | 48.9% | 20 | +6.3% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 0.4% | 4 | -67.5% |
| Pooled investment vehicles | 20.4% | 3 | +2.9% |
| Registered funds and BDCs | 48.2% | 6 | -1.8% |
| Diversified | 1.5% | 2 | -0.2% |
| Unknown | 29.5% | 26 | +4.8% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 43.1% | 4 | +5.6% |
| Private equity funds | 0.0% | 1 | new |
| Real estate funds | 0.0% | 0 | — |
| Other private funds | 7.1% | 3 | -6.1% |
| No private funds | 22.0% | 8 | -5.2% |
| Private funds, type not stated | 0.0% | 0 | — |
| Unknown | 27.8% | 25 | -1.2% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 97.5% | 34 | -1.7% |
| Outside the US | 2.5% | 7 | +391.3% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 1 holder with no observed 2026-06-30 13F.
Conviction and Crowding
41 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 23.6% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shareholder Targets
13F filers that own its peers but not APT, quarter ended Jun 30, 2026APT has no holder-overlap peers, so these filers hold the largest Industrials stocks: SPCX, CAT, GE, GEV, RTX, UNP, ETN, BA, DE, PH, VRT, HWM, PWR, TT, LMT, CMI, GD, JCI, WM, TDG. 6,145 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | Alphabet Inc. Unknown, Concentrated | $94,176,237,970 1 held | SPCX |
| 2 | Valor Management LLC Adviser, Concentrated | $86,013,406,595 1 held | SPCX |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser, Diversified active | $83,375,688,063 20 held | CAT, GE, VRT |
| 4 | BANK OF AMERICA CORP /DE/ Bank, Diversified active | $50,842,182,391 20 held | CAT, ETN, RTX |
| 5 | Capital World Investors Adviser, Diversified active | $49,191,955,588 15 held | UNP, DE, BA |
| 6 | VY Capital Management Co. Ltd. Exempt adviser, Concentrated | $46,441,712,890 1 held | SPCX |
| 7 | Capital Research Global Investors Adviser, Diversified active | $42,021,126,393 13 held | GE, RTX, UNP |
| 8 | Fisher Asset Management, LLC Adviser, Diversified active | $34,223,376,115 20 held | CAT, RTX, GE |
| 9 | NORGES BANK Non-US, Index-like | $33,558,857,825 16 held | GE, GEV, RTX |
| 10 | Invesco Ltd. Adviser, Diversified active | $31,767,816,113 20 held | CAT, GE, GEV |
Fund Ownership of APT by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 6.02% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 0.75% | 77,018 |
| Index ETFs | 5.26% | 537,270 |
| Active ETFs | 0.30% | 30,251 |
| Active funds | 7.79% | 795,247 |
| Unclassified | 0.00% | 0 |
| All registered funds | 14.11% | 1,439,786 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mid NEEDHAM INVESTMENT MANAGEMENT LLC Registered adviser | $3,610,850 | 16.19% | 642,500 | Shares | 2026-08-14 | |
| Large RENAISSANCE TECHNOLOGIES LLC Registered adviser | $3,156,034 | 14.15% | 561,572 | Shares | 2026-08-13 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC Registered adviser | $2,880,115 | 12.91% | 512,476 | Shares | 2026-08-13 | |
| Mega BlackRock, Inc. Holding company | $1,566,219 | 7.02% | 278,687 | Shares | 2026-08-07 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $1,530,326 | 6.86% | 272,300 | Call | 2026-08-14 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1,363,968 | 6.11% | 242,699 | Shares | 2026-08-14 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $1,345,990 | 6.03% | 239,500 | Put | 2026-08-14 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1,304,964 | 5.85% | 232,200 | Call | 2026-08-14 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $848,058 | 3.80% | 150,900 | Put | 2026-08-14 | |
| Mega DIMENSIONAL FUND ADVISORS LP Registered adviser | $770,517 | 3.45% | 137,103 | Shares | 2026-08-11 | |
| Large ACADIAN ASSET MANAGEMENT LLC | $712,986 | 3.20% | 126,866 | Shares | 2026-08-13 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $544,313 | 2.44% | 96,853 | Shares | 2026-08-12 | |
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC Registered adviser | $362,630 | 1.63% | 64,525 | Shares | 2026-08-14 | |
| Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP Registered adviser | $327,696 | 1.47% | 58,309 | Shares | 2026-08-13 | |
| Large MARSHALL WACE, LLP Exempt adviser | $292,874 | 1.31% | 52,113 | Shares | 2026-08-13 | |
| Mega VANGUARD FIDUCIARY TRUST CO | $291,048 | 1.30% | 51,788 | Shares | 2026-08-13 | |
| Mega STATE STREET CORP Bank | $263,898 | 1.18% | 46,957 | Shares | 2026-09-22 | |
| Small ESSEX INVESTMENT MANAGEMENT CO LLC Registered adviser | $242,088 | 1.09% | 47,283 | Shares | 2026-10-19 | |
| Mega NORTHERN TRUST CORP Bank | $116,317 | 0.52% | 20,697 | Shares | 2026-08-13 | |
| Mid XTX Topco Ltd | $96,759 | 0.43% | 17,217 | Shares | 2026-08-14 | |
| Mid SIMPLEX TRADING, LLC | $94,258 | 0.42% | 16,772 | Shares | 2026-08-12 | |
| Mega PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser | $89,920 | 0.40% | 16,000 | Shares | 2026-08-14 | |
| Mega JANE STREET GROUP, LLC | $79,242 | 0.36% | 14,100 | Call | 2026-08-14 | |
| Mega JANE STREET GROUP, LLC | $73,323 | 0.33% | 13,047 | Shares | 2026-08-14 | |
| Large Pinnacle Financial Partners, Inc. Bank | $69,688 | 0.31% | 12,400 | Shares | 2026-08-14 | |
| Large NewEdge Advisors, LLC Registered adviser | $62,134 | 0.28% | 11,056 | Shares | 2026-08-12 | |
| Small JAMES INVESTMENT RESEARCH, INC. Registered adviser | $62,101 | 0.28% | 11,050 | Shares | 2026-07-24 | |
| Mega MORGAN STANLEY Holding company | $45,329 | 0.20% | 8,066 | Shares | 2026-08-13 | |
| Mega UBS Group AG Bank | $32,376 | 0.15% | 5,761 | Shares | 2026-08-13 | |
| Mega Vanguard Global Advisers, LLC Registered adviser | $22,260 | 0.10% | 3,961 | Shares | 2026-08-13 | |
| Large OSAIC HOLDINGS, INC. Holding company | $21,243 | 0.10% | 3,780 | Shares | 2026-08-14 | |
| Mid GROUP ONE TRADING LLC Broker-dealer | $11,683 | 0.05% | 2,079 | Shares | 2026-08-14 | |
| Small Fortitude Family Office, LLC Registered adviser | $4,633 | 0.02% | 905 | Shares | 2026-10-14 | |
| Mid Tower Research Capital LLC (TRC) | $3,844 | 0.02% | 684 | Shares | 2026-08-11 | |
| Mega BARCLAYS PLC Bank | $2,394 | 0.01% | 426 | Shares | 2026-08-14 | |
| Mega FMR LLC Holding company | $2,248 | 0.01% | 400 | Shares | 2026-08-13 | |
| Large Farther Finance Advisors, LLC Registered adviser | $1,858 | 0.01% | 363 | Shares | 2026-10-08 | |
| Mid SBI Securities Co., Ltd. Non-US | $1,416 | 0.01% | 252 | Shares | 2026-07-23 | |
| Mega JPMORGAN CHASE & CO Bank | $735 | 0.00% | 131 | Shares | 2026-08-12 | |
| Mega NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | $281 | 0.00% | 50 | Shares | 2026-08-12 | |
| Small Archer Investment Corp Registered adviser | $219 | 0.00% | 39 | Shares | 2026-08-19 | |
| Large TD Waterhouse Canada Inc. | $204 | 0.00% | 40 | Shares | 2026-10-16 | |
| Small Caitong International Asset Management Co., Ltd | $123 | 0.00% | 22 | Shares | 2026-08-05 | |
| Mega BNP PARIBAS ARBITRAGE, SA Non-US | $73 | 0.00% | 13 | Shares | 2026-08-13 | |
| Mid SIGNATUREFD, LLC Registered adviser | $56 | 0.00% | 10 | Shares | 2026-07-24 | |
| Small CVA Family Office, LLC | $16 | 0.00% | 3 | Shares | 2026-08-07 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $5 | 0.00% | 1 | Shares | 2026-08-14 |