$PLAB stock has now fallen 9% today, according to our price data from Polygon. There has been approximately $50,986,331 of trading volume.
It has been the 271st most-searched ticker on Quiver Quantitative over the last day, out of 12,387 total tickers searched.
Here is what we see in our data on $PLAB (you can track the company live on Quiver's $PLAB stock page):
$PLAB Insider Trading Activity
$PLAB insiders have traded $PLAB stock on the open market 39 times in the past 6 months. Of those trades, 0 have been purchases and 39 have been sales.
Here’s a breakdown of recent trading of $PLAB stock by insiders over the last 6 months:
- KANG JYH LEE has made 0 purchases and 19 sales selling 158,750 shares for an estimated $6,091,475.
- GEORGE MACRICOSTAS (CEO) has made 0 purchases and 3 sales selling 121,194 shares for an estimated $5,203,717.
- CONSTANTINE S MACRICOSTAS sold 50,000 shares for an estimated $2,267,500
- HSUEH-CHUN WANG (SVP/COO IC & US/EU Mnstrm Ops) has made 0 purchases and 6 sales selling 51,125 shares for an estimated $2,245,224.
- ERIC RIVERA (President, CFO) has made 0 purchases and 3 sales selling 42,517 shares for an estimated $1,871,518.
- MITCHELL G TYSON has made 0 purchases and 2 sales selling 15,000 shares for an estimated $599,150.
- HAN KYUNG PARK (SVP & GM of FPD Ops) has made 0 purchases and 2 sales selling 13,750 shares for an estimated $470,812.
- MARY PALADINO sold 11,250 shares for an estimated $394,987
- RUI ZHANG (VP, CAO & Corporate Controller) has made 0 purchases and 2 sales selling 6,308 shares for an estimated $288,977.
To track insider transactions, check out Quiver Quantitative's insider trading dashboard. You can access data on insider stock transactions through the Quiver Quantitative API insider transaction endpoint.
$PLAB Hedge Fund Activity
We have seen 173 institutional investors add shares of $PLAB stock to their portfolio, and 181 decrease their positions in their most recent quarter.
Here are some of the largest recent moves:
- INVESCO LTD. added 1,226,588 shares (+395.9%) to their portfolio in Q4 2025, for an estimated $39,250,816
- VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. added 1,185,405 shares (+inf%) to their portfolio in Q1 2026, for an estimated $47,902,216
- JANUS HENDERSON GROUP PLC added 594,446 shares (+2201.5%) to their portfolio in Q4 2025, for an estimated $19,022,272
- BLACKROCK, INC. added 559,408 shares (+6.3%) to their portfolio in Q1 2026, for an estimated $22,605,677
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP removed 535,199 shares (-100.0%) from their portfolio in Q1 2026, for an estimated $21,627,391
- POLAR CAPITAL HOLDINGS PLC added 513,451 shares (+inf%) to their portfolio in Q1 2026, for an estimated $20,748,554
- CITADEL ADVISORS LLC removed 434,858 shares (-98.0%) from their portfolio in Q1 2026, for an estimated $17,572,611
To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard. You can access data on hedge funds moves and 13F filings through the Quiver Quantitative API 13F endpoint.
You can track data on $PLAB on Quiver Quantitative.
This article is not financial advice. See Quiver Quantitative's disclaimers for more information. Note that there may be inaccuracies due to mistakes in ticker-mapping, and other anomalies.
