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 Sep 30, 2025
Ownership Breakdown
280
Institutional Holders
▲ 14 vs Q2
$1.23B
Total Inst. Value
▲ $211.85M vs Q2
58.97M
Shares Outstanding
freeFloat 96.12%
53.74M
13F Shares Held
▼ 458,491 vs Q2
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
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. semiconductors & related devices | 8.79M | 14.59% | 14.59% | $201.78B | Nov 12, 2025 | ▼ 609.0K |
VANGUARD GROUP INC semiconductors & related devices | 5.78M | 9.59% | 9.59% | $132.64B | Nov 7, 2025 | ▼ 211.0K |
DIMENSIONAL FUND ADVISORS LP semiconductors & related devices | 4.09M | 6.79% | 6.79% | $93.89B | Nov 12, 2025 | ▼ 35.0K |
LSV ASSET MANAGEMENT semiconductors & related devices | 2.51M | 4.17% | 4.17% | $57.67B | Nov 6, 2025 | ▼ 94.9K |
AMERICAN CENTURY COMPANIES INC semiconductors & related devices | 2.41M | 4.00% | 4.00% | $55.36B | Nov 12, 2025 | ▲ 106.1K |
VICTORY CAPITAL MANAGEMENT INC semiconductors & related devices | 2.31M | 3.83% | 3.83% | $52.91B | Nov 12, 2025 | ▲ 2.02M |
STATE STREET CORP semiconductors & related devices | 2.24M | 3.72% | 3.72% | $51.47B | Nov 14, 2025 | ▼ 86.3K |
GEODE CAPITAL MANAGEMENT, LLC semiconductors & related devices | 1.84M | 3.06% | 3.06% | $42.32B | Nov 12, 2025 | ▼ 44.2K |
MORGAN STANLEY semiconductors & related devices | 1.27M | 2.10% | 2.10% | $29.09B | May 27, 2026 | ▲ 16.8K |
PRICE T ROWE ASSOCIATES INC /MD/ semiconductors & related devices | 1.04M | 1.73% | 1.73% | $23.86B | Nov 14, 2025 | ▲ 474 |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
17
Increased
+3.01M shares1
New Positions
first time holders28
Decreased
−3.11M shares0
Sold Out
fully exitedNet shares change (top 50)
93.1K
+3.01M / −3.11M
Net new holders
-10
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 91.1% of total shares outstanding. Company insiders own approximately 3.88%, while retail and public investors account for the remaining 4.98%.
The largest institutional shareholder of Photronics, Inc. is BLACKROCK, INC., holding approximately 8.79 million shares — equal to 14.59% of outstanding shares — as of September 30, 2025.
A total of 280 institutional investors currently hold PLAB stock, with a combined institutional value of approximately $1.23 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 91.1% of shares. The largest shareholder is BLACKROCK, INC. with a 14.59% stake. Company insiders hold 3.88%. Data sourced from SEC Form 13F as of September 30, 2025.