Michael A. Davis

Insider Reports History

Reporting-owner location: Tiburon, CA
Latest reporting-owner signature: /s/Amy B. Nordin, by Power of Attorney
Transaction source note: Rows are grouped by transaction date from the original SEC filing. Open the aggregated insider activity page to review issuer-level activity across dates.

Reported holdings for Michael A. Davis

Form 4 holding Director, 10%+ Owner

CYANOTECH CORP

Security class: Cyanotech Corporation Common Stock
Shares / value: 1,528,598
Estimated value: $1,123,734
Report date: 28 Aug 2025
Price: $0.7600
Ownership: By self as trustee of the Michael Arlen Davis Revocable Trust

Form 4 holding Director, 10%+ Owner

CYANOTECH CORP

Security class: Cyanotech Corporation Common Stock
Shares / value: 150,000
Estimated value: $114,000
Report date: 28 Aug 2025
Price: $0.7600
Ownership: By self as co-trustee for the Nyracai Davis Irr. Trust and the Nettizanne J. Davis Irr. Trust

Form 4 holding Director, 10%+ Owner

CYANOTECH CORP

Security class: Cyanotech Corporation Common Stock
Shares / value: 58,789
Estimated value: $44,680
Report date: 28 Aug 2025
Price: $0.7600
Ownership: By self as trustee for Nyracai Johnstone Davis GST Exempt Trust

Form 4 holding Director, 10%+ Owner

CYANOTECH CORP

Security class: Cyanotech Corporation Common Stock
Shares / value: 58,000
Estimated value: $44,080
Report date: 28 Aug 2025
Price: $0.7600
Ownership: By self as trustee for Nettizanne Johnstone Davis GST Exempt Trust

Form 4 holding Director, 10%+ Owner

CYANOTECH CORP

Security class: Cyanotech Corporation Common Stock
Shares / value: 31,250
Estimated value: $23,750
Report date: 28 Aug 2025
Price: $0.7600
Ownership: By Spouse

Form 4 holding Director, 10%+ Owner

CYANOTECH CORP

Security class: Cyanotech Corporation Common Stock
Shares / value: 12,119
Estimated value: $9,210
Report date: 28 Aug 2025
Price: $0.7600
Ownership: Direct

Insider Reports Filed by Michael A. Davis

4 CYAN

CYANOTECH CORP

Report period: 28 Aug 2025
Transactions: 1
Transaction value: $0
Accepted by SEC: 02 Sep 2025, 18:11
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 03 Oct 2024
Transactions: 2
Transaction value: +$13,800
Accepted by SEC: 03 Oct 2024, 15:27
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 27 Sep 2024
Transactions: 2
Transaction value: +$7,650
Accepted by SEC: 01 Oct 2024, 16:42
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 25 Sep 2024
Transactions: 2
Transaction value: +$7,700
Accepted by SEC: 27 Sep 2024, 13:33
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 23 Sep 2024
Transactions: 2
Transaction value: +$7,500
Accepted by SEC: 25 Sep 2024, 16:46
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 19 Sep 2024
Transactions: 2
Transaction value: +$7,550
Accepted by SEC: 23 Sep 2024, 14:57
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 17 Sep 2024
Transactions: 3
Transaction value: +$7,580
Accepted by SEC: 19 Sep 2024, 17:01
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 13 Sep 2024
Transactions: 2
Transaction value: +$8,200
Accepted by SEC: 17 Sep 2024, 16:20
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 11 Sep 2024
Transactions: 2
Transaction value: +$8,300
Accepted by SEC: 13 Sep 2024, 16:12
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 09 Sep 2024
Transactions: 3
Transaction value: +$58,350
Accepted by SEC: 11 Sep 2024, 17:49
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 05 Sep 2024
Transactions: 2
Transaction value: +$8,400
Accepted by SEC: 09 Sep 2024, 15:47
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 03 Sep 2024
Transactions: 3
Transaction value: +$8,200
Accepted by SEC: 05 Sep 2024, 19:43
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 29 Aug 2024
Transactions: 3
Transaction value: +$11,450
Accepted by SEC: 03 Sep 2024, 15:42
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 27 Aug 2024
Transactions: 2
Transaction value: +$7,950
Accepted by SEC: 29 Aug 2024, 16:18
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 23 Aug 2024
Transactions: 2
Transaction value: +$8,050
Accepted by SEC: 27 Aug 2024, 15:21
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 21 Aug 2024
Transactions: 2
Transaction value: +$7,550
Accepted by SEC: 23 Aug 2024, 14:46
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 19 Aug 2024
Transactions: 2
Transaction value: +$8,800
Accepted by SEC: 21 Aug 2024, 14:57
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 15 Aug 2024
Transactions: 2
Transaction value: +$8,000
Accepted by SEC: 19 Aug 2024, 16:05
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 13 Aug 2024
Transactions: 2
Transaction value: +$7,200
Accepted by SEC: 15 Aug 2024, 15:26
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 09 Aug 2024
Transactions: 2
Transaction value: +$7,650
Accepted by SEC: 13 Aug 2024, 15:03
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 07 Aug 2024
Transactions: 2
Transaction value: +$7,250
Accepted by SEC: 09 Aug 2024, 15:27
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 05 Aug 2024
Transactions: 2
Transaction value: +$7,850
Accepted by SEC: 07 Aug 2024, 15:00
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 01 Aug 2024
Transactions: 2
Transaction value: +$8,100
Accepted by SEC: 05 Aug 2024, 15:23
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 30 Jul 2024
Transactions: 2
Transaction value: +$7,700
Accepted by SEC: 01 Aug 2024, 14:25
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 26 Jul 2024
Transactions: 2
Transaction value: +$6,400
Accepted by SEC: 30 Jul 2024, 17:06
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 24 Jul 2024
Transactions: 2
Transaction value: +$6,200
Accepted by SEC: 26 Jul 2024, 16:08
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 22 Jul 2024
Transactions: 2
Transaction value: +$5,850
Accepted by SEC: 24 Jul 2024, 15:33
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 18 Jul 2024
Transactions: 2
Transaction value: +$5,850
Accepted by SEC: 22 Jul 2024, 14:07
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 16 Jul 2024
Transactions: 2
Transaction value: +$5,800
Accepted by SEC: 18 Jul 2024, 14:54
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 12 Jul 2024
Transactions: 2
Transaction value: +$5,400
Accepted by SEC: 16 Jul 2024, 17:00
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 10 Jul 2024
Transactions: 2
Transaction value: +$4,200
Accepted by SEC: 12 Jul 2024, 14:42
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 08 Jul 2024
Transactions: 2
Transaction value: +$3,550
Accepted by SEC: 10 Jul 2024, 12:52
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 03 Jul 2024
Transactions: 2
Transaction value: +$3,850
Accepted by SEC: 08 Jul 2024, 14:47
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 15 Dec 2023
Transactions: 1
Transaction value: +$400,000
Accepted by SEC: 19 Dec 2023, 16:17
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 01 Dec 2023
Transactions: 1
Transaction value: +$35,510
Accepted by SEC: 04 Dec 2023, 15:35
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 13 Oct 2023
Transactions: 1
Transaction value: $0
Accepted by SEC: 17 Oct 2023, 13:28
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 15 Sep 2023
Transactions: 1
Transaction value: +$2,742
Accepted by SEC: 18 Sep 2023, 11:48
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 13 Sep 2023
Transactions: 2
Transaction value: +$4,564
Accepted by SEC: 14 Sep 2023, 17:36
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 11 Sep 2023
Transactions: 2
Transaction value: +$326
Accepted by SEC: 12 Sep 2023, 21:14
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 07 Sep 2023
Transactions: 2
Transaction value: +$15,375
Accepted by SEC: 08 Sep 2023, 19:16
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 05 Sep 2023
Transactions: 2
Transaction value: +$12,353
Accepted by SEC: 07 Sep 2023, 15:54
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 24 Aug 2023
Transactions: 2
Transaction value: $0
Accepted by SEC: 28 Aug 2023, 15:10
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 03 Apr 2023
Transactions: 1
Transaction value: $0
Accepted by SEC: 04 Apr 2023, 15:32
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 30 Aug 2022
Transactions: 1
Transaction value: $0
Accepted by SEC: 01 Sep 2022, 16:19
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 30 Nov 2021
Transactions: 2
Transaction value: +$126,194
Accepted by SEC: 01 Dec 2021, 16:05
Role: Director, 10%+ Owner
Next action: Open filing details

4 CYAN

CYANOTECH CORP

Report period: 18 Oct 2021
Transactions: 1
Transaction value: $0
Accepted by SEC: 20 Oct 2021, 16:05
Role: Director, 10%+ Owner
Next action: Open filing details

Insider Reports History

Continue from this owner filing history

Reported holdings for Michael A. Davis

Insider Reports Filed by Michael A. Davis