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Penbrook Management’s Photronics PLAB Stock Holding History

Penbrook Management’s Portfolio PLAB Stock Details PLAB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2024
Q1 		– Sell
-10,000
Closed -$314 – 105
2023
Q4 		$314 Buy
+10,000
New +$222K ﹤0.01% 103
2023
Q3 		– Sell
-5,000
Closed -$129 – 104
2023
Q2 		$129 Buy
+5,000
New +$92.7K ﹤0.01% 100

Other funds holding PLAB

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
LSV Asset Management
LSV Asset Management Chicago, Illinois $46.4B AUM 27.74% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Victory Capital Management
Victory Capital Management San Antonio, Texas $156B AUM 27.51% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Penbrook Management's PLAB Position: Q1 2026 in Review

Penbrook Management reduced its Photronics (PLAB) stake by 13% in Q1 2026, selling an estimated $505K and leaving 96,730 shares worth $3.91M. The position accounts for 2.96% of the portfolio, ranked #7.

Penbrook Management first reported a position in PLAB in Q4 2017 and has held it in 34 quarters since. The position peaked at $3.91M in Q2 2025. 330 funds tracked by Wall St. Rank hold PLAB as of Q1 2026.

  • Penbrook Management held 96,730 shares of Photronics worth $3.91M as of Q1 2026.
  • Penbrook Management sold 13,950 Photronics shares in Q1 2026, an estimated $505K.
  • Photronics made up 2.96% of Penbrook Management's portfolio in Q1 2026, its #7 holding.
  • Penbrook Management first reported a position in Photronics in Q4 2017 and has held it in 34 quarters since.
  • Penbrook Management's Photronics position peaked at $3.91M in Q2 2025.
  • 330 funds tracked by Wall St. Rank held Photronics as of Q1 2026.

Based on Penbrook Management's 13F filing for Q1 2026, filed 21 Apr 2026.