Stock

Alpha Pro Tech Ltd

APT · held by 35 managers

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025

Reported value

$12.1M

Holders

+0 new · −1 exited

Holders’ est. mark

−$5.09K

Price effect on 3 books still in the name

Largest holder

$2.85M

NEEDHAM INVESTMENT MANAGEMENT LLC

Notable conviction

Share of each notable manager’s 13F book.

Renaissance Technologies0.0% · $2.32M
Citadel0.0% · $94.8K
State Street0.0% · $208.5K
Vanguard0.0% · $2.7M

Holder count by quarter

Q3 2024 Q4 2024 Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026

Who holds it

Notable only

Investor	Shares	Value	Est. mark	Change
NEEDHAM INVESTMENT MANAGEMENT LLC	642.5K	$2.85M	—	Held
Vanguard	609.1K	$2.7M	—	Held
Renaissance Technologies	523K	$2.32M	—	Held
BlackRock, Inc.	270.4K	$1.2M	—	Held
DIMENSIONAL FUND ADVISORS LP	137.3K	$609.8K	—	Held
GEODE CAPITAL MANAGEMENT, LLC	92.9K	$412.5K	—	Held
BRIDGEWAY CAPITAL MANAGEMENT, LLC	78.5K	$348.7K	—	Held
SUSQUEHANNA INTERNATIONAL GROUP, LLP	68.3K	$303.3K	—	Held
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	58.3K	$258.9K	—	Held
State Street	47K	$208.5K	—	Held
ESSEX INVESTMENT MANAGEMENT CO LLC	34.4K	$152.6K	—	Held
NewEdge Advisors, LLC	32.8K	$145.7K	—	Held
Pinnacle Financial Partners, Inc.	25K	$111K	—	Held
OSAIC HOLDINGS, INC.	23.5K	$104.3K	—	Held
Citadel	21.4K	$94.8K	—	Held
NORTHERN TRUST CORP	18.1K	$80.2K	—	Held
CALDWELL SUTTER CAPITAL, INC.	16.2K	$72.1K	—	Held
JAMES INVESTMENT RESEARCH, INC.	11.1K	$49.1K	—	Held
MORGAN STANLEY	8.77K	$38.9K	−$3.02K	Cut−$16.2K
BANK OF AMERICA CORP /DE/	6.61K	$29.4K	−$1.92K	Added$2.72K
WELLS FARGO & COMPANY/MN	3K	$13.3K	—	Held
Federation des caisses Desjardins du Quebec	1.5K	$6.66K	—	Held
Tower Research Capital LLC (TRC)	1.15K	$5.09K	—	Held
Garton & Associates Financial Advisors LLC	1K	$4.44K	—	Held
JPMORGAN CHASE & CO	606	$2.69K	—	Held
BARCLAYS PLC	426	$1.89K	−$148	Cut−$205
SBI Securities Co., Ltd.	251	$1.11K	—	Held
ACADIAN ASSET MANAGEMENT LLC	133.4K	$591	—	Held
CITIGROUP INC	76	$337	—	Held
TD Waterhouse Canada Inc.	40	$176	—	Held
Archer Investment Corp	39	$173	—	Held
PRICE T ROWE ASSOCIATES INC /MD/	16K	$72	—	Held
BNP PARIBAS FINANCIAL MARKETS	13	$58	—	Held
UBS Group AG	11	$49	—	Held
CWM, LLC	100	$0	—	Held

Who left

Allworth Financial LP$47.9K

Positions as of Q4 2025. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.