CYAN · Cyanotech Corp · Shareholders & Ownership
Substantial doubt about the company's ability to continue as a going concern.
“These conditions raise substantial doubt about the Company's ability to continue as a going concern.”View the 10-Q filed Nov 10, 2025
Every disclosed holder of CYAN in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns CYAN
13F quarter Dec 31, 2023| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 366,844 | 4.96% |
| Insiders (Forms 3, 4, 5) | 2,488,884 | 33.67% |
| 13D/G-only blocks | 0 | 0.00% |
| Remaining | 4,536,515 | 61.37% |
| Registered funds (N-PORT, not summed) | 0 | 0.00% |
Shares outstanding: 7,392,243, the issuer's latest cover-page count restated onto today's split basis.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of CYAN
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
|
1,838,756 | ||
| 1.1 |
|
1,700,598 | ||
| 2 |
|
225,138 | ||
| 3 |
|
203,468 | ||
| 4 |
RENAISSANCE TECHNOLOGIES LLC
13F
CIK 1037389 · Registered investment adviser · Dec 31, 2023
|
147,409 | ||
| 5 |
|
146,947 | ||
| 6 |
Coastline Trust Co
13F
CIK 1324279 · Unknown · Dec 31, 2023
|
82,400 | ||
| 7 |
VANGUARD GROUP INC
13F
CIK 102909 · Registered investment adviser · Dec 31, 2023
|
52,822 | ||
| 8 |
|
44,320 | ||
| 9 |
TRAPHAGEN INVESTMENT ADVISORS LLC
13F
CIK 2023380 · Registered investment adviser · Dec 31, 2023
|
30,600 | ||
| 10 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Dec 31, 2023
|
27,270 | ||
| 11 |
SUSQUEHANNA INTERNATIONAL GROUP, LLP
13F
CIK 1446194 · Unknown · Dec 31, 2023
|
12,789 | ||
| 12 |
BlackRock Inc.
13F
CIK 1364742 · Holding company · Dec 31, 2023
|
10,762 | ||
| 13 |
|
9,743 | ||
| 14 |
|
9,051 | ||
| 15 |
|
6,754 | ||
| 16 |
|
4,707 | ||
| 17 |
Tower Research Capital LLC (TRC)
13F
CIK 1533421 · Unknown · Dec 31, 2023
|
2,234 | ||
| 18 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Dec 31, 2023
|
318 | ||
| 19 |
Farther Finance Advisors, LLC
13F
CIK 1992825 · Registered investment adviser · Dec 31, 2023
|
200 | ||
| 20 |
WELLS FARGO & COMPANY/MN
13F
CIK 72971 · Bank · Dec 31, 2023
|
40 |
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.