Cyanotech Corporation CYAN
0.45 USD 0.00 (+0.00%)
At closeNov 4, 2026, 4:00 PM EST
0.45 Day range 0.45
0.23 52-week range 0.78
- YTD
- 0.00%
- 1 year
- +50.00%
Ownership
Held by insiders 33.03%
Held by institutions 4.88%
Float held by institutions 7.29%
Institutions 10
Top institutional holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| Renaissance Technologies, LLC | 2.45% | 154,509 | 132.88K | Jun 29, 2023 |
| Coastline Trust Company | 1.31% | 82,400 | 65.92K | Sep 29, 2023 |
| Vanguard Group Inc | 0.83% | 52,089 | 44.80K | Jun 29, 2023 |
| Geode Capital Management, LLC | 0.43% | 27,270 | 23.45K | Jun 29, 2023 |
| Citadel Advisors Llc | 0.39% | 24,816 | 21.34K | Jun 29, 2023 |
| Two Sigma Securities, LLC | 0.35% | 21,994 | 18.91K | Jun 29, 2023 |
Top mutual fund holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| Vanguard Extended Market Index Fund | 0.83% | 52,089 | 44.80K | Jun 29, 2023 |
| Fidelity Extended Market Index Fund | 0.36% | 22,406 | 22.63K | May 30, 2023 |
| Fidelity Total Market Index Fund | 0.03% | 1,622 | 1.64K | May 30, 2023 |
| Fidelity Series Total Market Index Fund | 0.01% | 678 | 684 | May 30, 2023 |
Insiders
| Insider | Relation | Latest transaction | Date | Shares held |
|---|---|---|---|---|
| CYSEWSKI GERALD R | Officer | Conversion of Exercise of derivative security | Feb 15, 2024 | 142,502 |
| DAVIS MICHAEL A | Director and Beneficial Owner of more than 10% of a Class of Security | Purchase | Dec 14, 2023 | 0 |
| HARTMANN CHARLES JASON | Officer | Conversion of Exercise of derivative security | Feb 15, 2024 | 3,393 |
| JENSEN GLENN D | Officer | Purchase | Feb 26, 2024 | 0 |
| JOHANSEN JENNIFER M. | Officer | Conversion of Exercise of derivative security | Feb 15, 2024 | 5,981 |
| KAKUK COLLETTE NICOLE | Officer | Conversion of Exercise of derivative security | Feb 15, 2024 | 2,344 |
