Photronics, Inc.
Photronics, Inc. (PLAB) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · PLAB · as of Mar 31, 2025
Ownership Breakdown
261
Institutional Holders
▼ 16 vs Q4
$1.15B
Total Inst. Value
▼ $195.12M vs Q4
58.97M
Shares Outstanding
freeFloat 96.12%
55.48M
13F Shares Held
▼ 1.70M vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
PLAB largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. semiconductors & related devices | 9.70M | 15.62% | 15.62% | $201.35B | May 2, 2025 | ▼ 638.4K |
VANGUARD GROUP INC semiconductors & related devices | 5.91M | 9.51% | 9.51% | $122.63B | May 9, 2025 | ▲ 38.3K |
DIMENSIONAL FUND ADVISORS LP semiconductors & related devices | 4.30M | 6.93% | 6.93% | $89.31B | May 13, 2025 | ▼ 200.1K |
STATE STREET CORP semiconductors & related devices | 2.34M | 3.77% | 3.77% | $48.56B | May 15, 2025 | ▼ 145.9K |
LSV ASSET MANAGEMENT semiconductors & related devices | 2.22M | 3.58% | 3.58% | $46.18B | May 9, 2025 | ▲ 104.2K |
AMERICAN CENTURY COMPANIES INC semiconductors & related devices | 2.20M | 3.54% | 3.54% | $45.59B | May 13, 2025 | ▲ 177.4K |
RUBRIC CAPITAL MANAGEMENT LP semiconductors & related devices | 1.86M | 3.00% | 3.00% | $38.67B | May 14, 2025 | ▲ 547.8K |
GEODE CAPITAL MANAGEMENT, LLC semiconductors & related devices | 1.86M | 3.00% | 3.00% | $38.65B | May 13, 2025 | ▲ 86.1K |
MORGAN STANLEY semiconductors & related devices | 1.27M | 2.05% | 2.05% | $26.42B | May 15, 2025 | ▲ 55.7K |
INVESCO LTD. semiconductors & related devices | 1.26M | 2.03% | 2.03% | $26.13B | May 12, 2025 | ▲ 135.9K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
28
Increased
+2.11M shares1
New Positions
first time holders18
Decreased
−3.35M shares0
Sold Out
fully exitedNet shares change (top 50)
1.24M
+2.11M / −3.35M
Net new holders
+11
1 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
PLAB insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
11
Buy transactions
29
Sell transactions
0.38
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
ZHANG RUI VP, CAO & Corporate Controller | Apr 17, 2026 | Sale | 4,556 | $46.70 | $212.8K | 27.1K | Form 4 ↗ |
Paladino Mary director | Apr 17, 2026 | D-Return | 22,548 | $47.77 | $1.08M | 1.3K | Form 4 ↗ |
Lee Kang Jyh director | Apr 16, 2026 | Sale | 10,000 | $46.05 | $460.5K | 365.9K | Form 4 ↗ |
Lee Kang Jyh director | Apr 16, 2026 | Sale | 10,000 | $45.80 | $458.0K | 355.9K | Form 4 ↗ |
Lee Kang Jyh director | Apr 15, 2026 | Sale | 10,000 | $45.10 | $451.0K | 375.9K | Form 4 ↗ |
Wang Hsueh-Chun SVP/COO IC & US/EU Mnstrm Ops | Apr 14, 2026 | Sale | 19,250 | $45.30 | $872.0K | 113.6K | Form 4 ↗ |
TYSON MITCHELL G director | Apr 13, 2026 | Award | 3,722 | — | — | 36.9K | Form 4 ↗ |
Garcia David A. director | Apr 13, 2026 | Award | 3,722 | — | — | 15.2K | Form 4 ↗ |
Almeida Michelle director | Apr 13, 2026 | Award | 3,722 | — | — | 5.0K | Form 4 ↗ |
Liao Daniel JL director | Apr 13, 2026 | Award | 3,722 | — | — | 72.5K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Photronics, Inc. (PLAB) is primarily owned by institutional investors, who hold approximately 94.1% of total shares outstanding. Company insiders own approximately 3.88%, while retail and public investors account for the remaining 2.02%.
The largest institutional shareholder of Photronics, Inc. is BLACKROCK, INC., holding approximately 9.70 million shares — equal to 15.62% of outstanding shares — as of March 31, 2025.
A total of 261 institutional investors currently hold PLAB stock, with a combined institutional value of approximately $1.15 billion as of the most recent 13F filing period.
Frequently asked questions
PLAB ownershipPhotronics, Inc. (PLAB) is primarily owned by institutional investors, who hold approximately 94.1% of shares. The largest shareholder is BLACKROCK, INC. with a 15.62% stake. Company insiders hold 3.88%. Data sourced from SEC Form 13F as of March 31, 2025.