Lightwave Logic
Develops electro-optic polymers and modulator designs for high-speed photonic data links.
$5.54
After-hours close+0.07 (+1.25%)
At close$5.47(−6.81%)
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Breakdown13F · Form 4
Institutions 27.12%41.79M sharesInsiders 2.96%4.56M sharesOther 69.92%107.73M shares
Shares outstanding 154.08M · Float 152.55M · 99.0% free float
Institutions13F, as of Mar 31, 2026
143 holders · 41.79M shares · 40 new positions · 83 increased · 23 reduced · 27 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Vanguard Capital Management LLC | 6.11M | 3.97% | +6.11Mnew | May 15, 2026 |
| Marshall Wace, LLP | 5.90M | 3.83% | +4.89M | May 15, 2026 |
| Vanguard Portfolio Management LLC | 3.08M | 2.00% | +3.08Mnew | May 8, 2026 |
| Millennium Management LLC | 2.98M | 1.94% | +1.98M | May 15, 2026 |
| BlackRock, Inc. | 2.47M | 1.60% | +641.8K | May 13, 2026 |
| Geode Capital Management, LLC | 1.86M | 1.21% | +163.0K | May 15, 2026 |
| State Street Corp | 1.70M | 1.11% | +109.3K | May 15, 2026 |
| Citadel Advisors LLC | 1.69M | 1.10% | −259.3K | May 15, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 7.80% | 12.04M | 13G | Jul 29, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Yves le Maitre | director, officer: CEO | 2.21M | 1.43% | Mar 13, 2026 |
| James S. Marcelli | director, officer: CFO, COO | 868.3K | 0.56% | Jan 5, 2026 |
| Fred Graffam | officer: Chief Financial Officer | 396.7K | 0.26% | Jul 28, 2026 |
| Thomas Edward Zelibor | officer: President | 386.7K | 0.25% | Jan 5, 2026 |
| Ronald A. Bucchi | director | 208.5K | 0.14% | Jun 2, 2026 |
| Craig Ciesla | director | 132.4K | 0.09% | Jun 3, 2026 |
| Siraj Nour El-Ahmadi | director | 110.8K | 0.07% | Jun 3, 2026 |
| Laila Partridge | director | 94.3K | 0.06% | Jun 2, 2026 |
| Thomas M. Jr Connelly | director | 90.7K | 0.06% | Jun 3, 2026 |
| Snizhana P. Quan | officer: Principal Financial Officer | 58.1K | 0.04% | Jun 5, 2026 |
1 ten-percent owner holds 3.13M shares by Form 4, outside the officers-and-directors figure above · 12 people have not refiled in the last 18 months (11.33M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Jun 1, 2026 | Snizhana P. Quanofficer: Principal Financial Officer | Sale | 345 | $11.41 | 50,780 |
| Apr 10, 2026 | Snizhana P. Quanofficer: Principal Financial Officer | Sale | 20,000 | $10.36 | 51,125 |
| Apr 1, 2026 | Craig Ciesladirector | Sale | 11,000 | $6.81 | 118,824 |
| Apr 7, 2026 | Siraj Nour El-Ahmadidirector | Sale | 54,536 | $7.76 | 97,168 |
| Apr 6, 2026 | Thomas M. Jr Connellydirector | Sale | 9,000 | $8.52 | 77,132 |
| Apr 1, 2026 | Laila Partridgedirector | Sale | 11,000 | $6.84 | 80,723 |
| Apr 1, 2026 | Ronald A. Bucchidirector | Sale | 11,000 | $6.92 | 294,879 |
| Mar 30, 2026 | Snizhana P. Quanofficer: Principal Financial Officer | Sale | 25,000 | $7.27 | 51,125 |
| Jan 27, 2026 | Siraj Nour El-Ahmadidirector | Sale | 25,591 | $3.48 | 123,944 |
| Dec 31, 2025 | Siraj Nour El-Ahmadidirector | Sale | 49,260 | $3.15 | 99,535 |
CongressHouse and Senate disclosures
Not reported.