Get started

Funds · APT

Who owns APT?

Institutional ownership of Alpha Pro Tech Ltd. from Form 13F, Q2 2026

41 institutional managers reported holding Alpha Pro Tech Ltd. (APT) in Form 13F filings for Q2 2026, with 3,051,071 shares worth $17.1M. The largest reported holder was Needham Investment Management LLC. Managers that filed both quarters added a net 26,876 shares (+0.9%). 9 opened new positions and 3 sold out.

Funds holding
41
Value held
$17.1M
New / sold out
9 / 3
Net shares, same filers
+0.9%

Holdings as of June 30, 2026, the end of Q2 2026. Managers have 45 days after a quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.

Largest holders of APT

FundValueShare of 13F holdingsSharesMove
Needham Investment Management LLC$3.6M21.1%642,500Unchanged
Renaissance Technologies LLC$3.2M18.4%561,572Added
Vanguard Capital Management LLC$2.9M16.8%512,476Trimmed
BlackRock, Inc.$1.6M9.1%278,687Added
Susquehanna International Group, LLP$1.4M8.0%242,699Added
Dimensional Fund Advisors LP$771K4.5%137,103Trimmed
Acadian Asset Management LLC$712K4.2%126,866Trimmed
Geode Capital Management, LLC$545K3.2%96,853Added
Bridgeway Capital Management, LLC$363K2.1%64,525Trimmed
Arrowstreet Capital, Limited Partnership$328K1.9%58,309Unchanged
Marshall Wace, LLP$293K1.7%52,113New
Vanguard Fiduciary Trust Co$291K1.7%51,788Added
State Street Corp$264K1.5%46,957Unchanged
Essex Investment Management Co LLC$193K1.1%34,264Trimmed
Northern Trust Corp$116K0.7%20,697Added
XTX Topco Ltd$97K0.6%17,217Added
Simplex Trading, LLC$94K0.5%16,772New
Price T Rowe Associates Inc$90K0.5%16,000Unchanged
Jane Street Group, LLC$73K0.4%13,047Trimmed
Pinnacle Financial Partners, Inc.$70K0.4%12,400Trimmed
NewEdge Advisors, LLC$62K0.4%11,056New
James Investment Research, Inc.$62K0.4%11,050Unchanged
Morgan Stanley$45K0.3%8,066Trimmed
UBS Group AG$32K0.2%5,761New
Vanguard Global Advisers, LLC$22K0.1%3,961Unchanged

Share of 13F holdings is each fund's shares as a share of the 3,051,071 APT shares all 13F filers reported, not of shares outstanding.

Biggest buyers in Q2 2026

  1. Susquehanna International Group, LLP Added+$570K
  2. Marshall Wace, LLP New+$293K
  3. Geode Capital Management, LLC Added+$160K
  4. Renaissance Technologies LLC Added+$98K
  5. Simplex Trading, LLC New+$94K
  6. NewEdge Advisors, LLC New+$62K
  7. BlackRock, Inc. Added+$39K
  8. UBS Group AG New+$32K
  9. Northern Trust Corp Added+$15K
  10. XTX Topco Ltd Added+$14K

Biggest sellers in Q2 2026

  1. Group One Trading LLC Trimmed-$624K
  2. Vanguard Capital Management LLC Trimmed-$232K
  3. Bridgeway Capital Management, LLC Trimmed-$79K
  4. Caldwell Sutter Capital, Inc. Sold out-$72K
  5. Pinnacle Financial Partners, Inc. Trimmed-$71K
  6. Jane Street Group, LLC Trimmed-$71K
  7. Acadian Asset Management LLC Trimmed-$36K
  8. Wells Fargo & Company Trimmed-$9K
  9. Osaic Holdings, Inc. Trimmed-$6K
  10. Morgan Stanley Trimmed-$4K

The change in shares since the quarter before, adjusted for stock splits and priced at the Q2 2026 value per share. Funds bought $1.4M and sold $1.2M; 10 added and 11 trimmed.

Questions about APT ownership

Who owns APT stock?
41 institutional investment managers reported APT positions in their Form 13F filings for Q2 2026, holding 3,051,071 shares worth $17.1M in total. Needham Investment Management LLC reported the largest position.
Are funds buying or selling APT?
In Q2 2026, 9 managers opened new APT positions, 10 added, 11 trimmed and 3 sold out. Managers that filed in both quarters added a net 26,876 shares.
How current is this APT institutional ownership data?
It covers holdings as of the end of Q2 2026. Managers have 45 days after the quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.

From the SEC's Form 13F data sets for Q2 2026: every 13F holdings report, matched to APT by CUSIP. Options are left out. APT news and filings · APT insider trades · Top funds