DAVIS MICHAEL A / — SEC Form 4 filings
SEC reporting owner CIK 1201156. 33 Form 4 filings on record with FilingPulse; latest filed 2025-09-02.
Transaction summary — filings shown
Covers all 33 filings on record, filed 2024-07-08 to 2025-09-02. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 65 legs across 32 filings — 320,000 shares, $227,880 total (shares × price as filed).
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 4.
- Largest priced transaction: purchase of 5,000 shares @ $0.89 ($4,450) in CYANOTECH CORP, filed 2024-08-21.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| CYANOTECH CORP (CYAN) | Director, 10% owner | 33 | 65 legs · 320,000 sh · $227,880 | — | 4 |
Form 4 filings — DAVIS MICHAEL A /
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2025-09-02 | 4 | CYANOTECH CORP (CYAN) | Grant/award (A): 50,000 @ $0 | EDGAR |
| 2024-10-03 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.76 · Grant/award (A): 13,158 @ $0.76 | EDGAR |
| 2024-10-01 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.77 · Purchase (P): 5,000 @ $0.76 | EDGAR |
| 2024-09-27 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.77 · Purchase (P): 5,000 @ $0.77 | EDGAR |
| 2024-09-25 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.77 · Purchase (P): 5,000 @ $0.73 | EDGAR |
| 2024-09-23 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.74 · Purchase (P): 5,000 @ $0.77 | EDGAR |
| 2024-09-19 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 4,000 @ $0.74 · Purchase (P): 1,000 @ $0.72 · Purchase (P): 5,000 @ $0.78 | EDGAR |
| 2024-09-17 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.82 · Purchase (P): 5,000 @ $0.82 | EDGAR |
| 2024-09-13 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.83 · Purchase (P): 5,000 @ $0.83 | EDGAR |
| 2024-09-11 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.84 · Purchase (P): 5,000 @ $0.83 · Grant/award (A): 66,667 @ $0.75 | EDGAR |
| 2024-09-09 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.84 · Purchase (P): 5,000 @ $0.84 | EDGAR |
| 2024-09-05 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.79 · Purchase (P): 5,000 @ $0.85 · Grant/award (A): 37,037 @ $0 | EDGAR |
| 2024-09-03 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.75 · Purchase (P): 5,000 @ $0.79 · Purchase (P): 5,000 @ $0.75 | EDGAR |
| 2024-08-29 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.80 · Purchase (P): 5,000 @ $0.79 | EDGAR |
| 2024-08-27 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.84 · Purchase (P): 5,000 @ $0.77 | EDGAR |
| 2024-08-23 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.75 · Purchase (P): 5,000 @ $0.76 | EDGAR |
| 2024-08-21 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.89 · Purchase (P): 5,000 @ $0.87 | EDGAR |
| 2024-08-19 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.75 · Purchase (P): 5,000 @ $0.85 | EDGAR |
| 2024-08-15 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.74 · Purchase (P): 5,000 @ $0.70 | EDGAR |
| 2024-08-13 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.79 · Purchase (P): 5,000 @ $0.74 | EDGAR |
| 2024-08-09 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.70 · Purchase (P): 5,000 @ $0.75 | EDGAR |
| 2024-08-07 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.77 · Purchase (P): 5,000 @ $0.80 | EDGAR |
| 2024-08-05 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.83 · Purchase (P): 5,000 @ $0.79 | EDGAR |
| 2024-08-01 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.71 · Purchase (P): 5,000 @ $0.83 | EDGAR |
| 2024-07-30 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.64 · Purchase (P): 5,000 @ $0.64 | EDGAR |
| 2024-07-26 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.60 · Purchase (P): 5,000 @ $0.64 | EDGAR |
| 2024-07-24 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.59 · Purchase (P): 5,000 @ $0.58 | EDGAR |
| 2024-07-22 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.58 · Purchase (P): 5,000 @ $0.59 | EDGAR |
| 2024-07-18 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.57 · Purchase (P): 5,000 @ $0.59 | EDGAR |
| 2024-07-16 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.55 · Purchase (P): 5,000 @ $0.53 | EDGAR |
| 2024-07-12 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.39 · Purchase (P): 5,000 @ $0.45 | EDGAR |
| 2024-07-10 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.32 · Purchase (P): 5,000 @ $0.39 | EDGAR |
| 2024-07-08 | 4 | CYANOTECH CORP (CYAN) | Purchase (P): 5,000 @ $0.37 · Purchase (P): 5,000 @ $0.40 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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