Photronics

PLAB · NASDAQ

$28.62+$0.27 (+0.95%)TodayMarket closed · Oct 20, 4:05 PM ET

Prev close $28.35

Who owns PLAB

Largest institutional holders, from their latest 13F filings

The 10 largest institutions hold 52.4% of PLAB’s shares.

BlackRock Institutional Trust Company, N.A.14.3%
Dimensional Fund Advisors, L.P.6.2%
American Century Investment Management, Inc.5.7%
Vanguard Portfolio Management, LLC5.0%
Next 6 largest institutions21.2%
All other shareholders47.6%

Top institutional holders of PLAB
Holder	Shares	% of shares	Change, last filing	Filed
BlackRock Institutional Trust Company, N.A.	8.43M	14.30%	+147.26K	Jun 30, 2026
Dimensional Fund Advisors, L.P.	3.64M	6.18%	−320.08K	Jun 30, 2026
American Century Investment Management, Inc.	3.39M	5.75%	+567.45K	Jun 30, 2026
Vanguard Portfolio Management, LLC	2.97M	5.04%	+127.39K	Jun 30, 2026
Vanguard Capital Management, LLC	2.50M	4.24%	−1.53K	Jun 30, 2026
State Street Investment Management (US)	2.34M	3.97%	+100.10K	Jun 30, 2026
LSV Asset Management	2.19M	3.71%	−697.25K	Jun 30, 2026
Geode Capital Management, L.L.C.	2.17M	3.68%	+313.07K	Jun 30, 2026
Invesco Capital Management LLC	1.79M	3.04%	+413.50K	Jun 30, 2026
T. Rowe Price Associates, Inc.	1.49M	2.53%	+654.10K	Jun 30, 2026

Largest mutual fund holders

Top mutual fund holders of PLAB
Holder	Shares	% of shares	Change, last filing	Filed
iShares Core S&P Small-Cap ETF	3.59M	6.10%	+4.39K	Aug 31, 2026
Avantis US Small Cap Value ETF	2.67M	4.53%	−149.99K	Aug 31, 2026
Vanguard Total Stock Market Index Fund	1.77M	3.00%	+1.16K	Jul 31, 2026
iShares Russell 2000 ETF	1.51M	2.56%	−6.60K	Jul 31, 2026
Invesco Semiconductors ETF	1.47M	2.49%	+71.54K	Aug 31, 2026

Insider trades

Form 4 filings by officers, directors and large holders

Over the last 6 months, insiders sold $1.11M (4 trades) of PLAB on the open market, with no buys.

Latest PLAB insider transactions
Insider	Date	Type	Shares	Price	Value
ZHANG RUI	Oct 1, 2026	Tax withholding	392	$30.83	$12.09K
Rivera Eric	Oct 1, 2026	Tax withholding	2.90K	$30.83	$89.31K
Lee Kang Jyh	Sep 29, 2026	Sale	10.00K	$30.75	$307.50K
Park Han Kyung	Sep 25, 2026	Sale	9.50K	$30.37	$288.52K
Lee Kang Jyh	Sep 24, 2026	Sale	7.50K	$29.50	$221.25K
Lee Kang Jyh	Sep 22, 2026	Sale	10.00K	$29.70	$297.00K

Short interest

Settled Sep 30, 2026

Shares short: 4.11M
Days to cover: 5.11
% of shares outstanding: 6.98%
Average daily volume: 805.08K
Change since last report: −5.1%

Information on this page is provided for informational purposes only and is not a recommendation to buy, sell or hold any security. Investing involves risk, including possible loss of principal. Market data is delayed at least 15 minutes and is provided without warranty. Analyst ratings, price targets and company data come from third-party sources. Past performance does not guarantee future results.