CALVERT DENNIS P
SEC insider (Form 3/4/5 filer). CIK 0001228572. President at BIOLARGO, INC. (BLGO). 7 reported Form 4/5 transactions since Sep 2024; latest on Sep 30, 2026. Located in WESTMINSTER, CA.
Companies CALVERT DENNIS P has filed insider reports for
- BIOLARGO, INC. (BLGO): Director, Officer, President
CALVERT DENNIS P
CIK: 0001228572
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)0 (0.0%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)6 (85.7%)
Compensation grants
Other (G, F, J, C, D, …)1 (14.3%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
BLGO
BIOLARGO, INC.
DirectorOfficer
Discretionary Trading P&L
Holdings
Transaction History (7 total)
- Sep 30, 2026BLGO
BIOLARGO, INC.
AwardDirect931.9K shares at avg. $0.08$75K - Sep 30, 2026BLGO
BIOLARGO, INC.
GiftDirect2M shares- - Jul 1, 2026BLGO
BIOLARGO, INC.
AwardDirect219.9K shares at avg. $0.11$25K - Jun 30, 2026BLGO
BIOLARGO, INC.
AwardDirect699.6K shares at avg. $0.11$79K - Dec 31, 2025BLGO
BIOLARGO, INC.
AwardDirect130.2K shares at avg. $0.18$24K - Nov 14, 2025BLGO
BIOLARGO, INC.
AwardDirect310.3K shares at avg. $0.16$50K - Jul 14, 2025BLGO
BIOLARGO, INC.
AwardDirect169.5K shares at avg. $0.20$34K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Sep 30, 2026 | BLGO BIOLARGO, INC. | Award | 931,886 | $0.08 | $74,551 | Direct |
| Sep 30, 2026 | BLGO BIOLARGO, INC. | Gift | 2,000,000 | - | $0 | Direct |
| Jul 1, 2026 | BLGO BIOLARGO, INC. | Award | 219,914 | $0.11 | $24,850 | Direct |
| Jun 30, 2026 | BLGO BIOLARGO, INC. | Award | 699,569 | $0.11 | $79,401 | Direct |
| Dec 31, 2025 | BLGO BIOLARGO, INC. | Award | 130,222 | $0.18 | $24,000 | Direct |
| Nov 14, 2025 | BLGO BIOLARGO, INC. | Award | 310,269 | $0.16 | $49,643 | Direct |
| Jul 14, 2025 | BLGO BIOLARGO, INC. | Award | 169,498 | $0.20 | $33,900 | Direct |
1-7 of 7 transactions