Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in PLAB held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 9.5M | $308.6M | +1.1% | 16.087% | 0.00% |
| 2 | DIMENSIONAL FUND ADVISORS LP | 3.6M | $118.5M | -8.1% | 6.177% | 0.02% |
| 3 | AMERICAN CENTURY COMPANIES INC | 3.4M | $110.2M | +20.1% | 5.745% | 0.05% |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | 3.0M | $96.7M | +4.5% | 5.040% | 0.00% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 2.5M | $81.4M | -0.1% | 4.242% | 0.00% |
| 6 | STATE STREET CORP | 2.3M | $76.1M | +4.5% | 3.968% | 0.00% |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 2.2M | $70.5M | +16.9% | 3.676% | 0.00% |
| 8 | Invesco Ltd. | 1.8M | $59.9M | +28.9% | 3.121% | 0.00% |
| 9 | VICTORY CAPITAL MANAGEMENT INC | 1.5M | $47.6M | -24.6% | 2.480% | 0.03% |
| 10 | VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. | 1.1M | $34.8M | -9.6% | 1.817% | 0.31% |
| 11 | MORGAN STANLEY | 1.0M | $33.0M | -1.0% | 1.723% | 0.00% |
| 12 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 973K | $31.6M | -3.2% | 1.650% | 0.00% |
| 13 | NORTHERN TRUST CORP | 889K | $28.9M | +4.4% | 1.508% | 0.00% |
| 14 | JANE STREET GROUP, LLC | 678K | $22.1M | +1310.4% | 1.150% | 0.00% |
| 15 | Boston Partners | 666K | $21.2M | -15.2% | 1.129% | 0.02% |
| 16 | NEEDHAM INVESTMENT MANAGEMENT LLC | 586K | $19.0M | -3.2% | 0.993% | 0.57% |
| 17 | CITADEL ADVISORS LLC | 504K | $16.4M | +353.9% | 0.856% | 0.00% |
| 18 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 496K | $16.1M | +69.6% | 0.840% | 0.00% |
| 19 | EASTERLY INVESTMENT PARTNERS LLC | 466K | $15.2M | +15.5% | 0.791% | 0.77% |
| 20 | AQR CAPITAL MANAGEMENT LLC | 415K | $13.5M | -14.7% | 0.703% | 0.00% |
| 21 | VANGUARD FIDUCIARY TRUST CO | 398K | $12.9M | +5.1% | 0.675% | 0.00% |
| 22 | Bank of New York Mellon Corp | 380K | $12.4M | +0.6% | 0.645% | 0.00% |
| 23 | HEARTLAND ADVISORS INC | 380K | $12.4M | +2.5% | 0.644% | 0.55% |
| 24 | SEGALL BRYANT & HAMILL, LLC | 374K | $12.2M | +500.0% | 0.634% | 0.14% |
| 25 | TCW GROUP INC | 356K | $11.6M | +11.4% | 0.603% | 0.08% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in PLAB — a direct measure of their conviction.
Filings activity in PLAB during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 320 | 4.5% | 95.90% | +0.76 pp | $1.69B | 19% |
| Q1 2026 | 335 | +8.4% | 95.14% | 1.69 pp | $2.08B | +26% |
| Q4 2025 | 309 | +17% | 96.83% | +4.21 pp | $1.65B | +46% |
| Q3 2025 | 263 | +4.4% | 92.62% | 0.91 pp | $1.14B | +21% |
| Q2 2025 | 252 | +1.2% | 93.53% | +5.85 pp | $942M | 11% |
| Q1 2025 | 249 | 5.0% | 87.68% | 3.64 pp | $1.06B | 15% |
| Q4 2024 | 262 | +1.6% | 91.32% | +4.13 pp | $1.25B | 1.0% |
| Q3 2024 | 258 | — | 87.19% | — | $1.26B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying PLAB stock.
Based on Q2 2026 13F filings, institutional ownership of Photronics, Inc. stands at 95.9%, held across 320 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of PLAB, with approximately 9,486,185 shares worth $0.31B as of Q2 2026.
Yes — 3 widely-followed marquee investors appear among the top 25 institutional holders of PLAB, including JANE STREET GROUP, LLC, CITADEL ADVISORS LLC, SUSQUEHANNA INTERNATIONAL GROUP, LLP.
Our composite Smart Money Score for PLAB is 61 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
56 institutions opened new positions in PLAB during Q2 2026, while 70 fully exited. 47 added to existing positions and 210 trimmed.
PLAB institutional ownership rose by 0.76 percentage points quarter-over-quarter, with a net change of -15 holders.
The top 10 institutions account for 59.5% of all reported 13F value in PLAB, and the top 25 account for 76.0%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Photronics, Inc. (PLAB) Institutional Ownership