Insider · CIK 0001228572
Dennis P Calvert
Files at BLGO (BIOLARGO, INC.). First filing -, latest -.
In brief
Dennis P Calvert files SEC Form 4 as president and director at BLGO (BIOLARGO, INC.). No open-market trade is on file; the transactions below are grants, exercises and other rows that carry no view on the price.
A track record needs three past buys with six months of prices behind them; Dennis P Calvert has 0, so none is measured yet.
Signals
This insider’s open-market buys and sells, scored.
Transactions
Every row this insider has filed, 7 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 30, 2026 | BLGO BIOLARGO, INC. | AGrant or award Common Stock | +931,886 | $0.08 | $75k | 11,989,994 | 11 d ago |
| Sep 30, 2026 | BLGO BIOLARGO, INC. | GGift Common Stock | +2,000,000 | $0.00 | $0 | 13,989,994 | 11 d ago |
| Jun 30, 2026 | BLGO BIOLARGO, INC. | AGrant or award Common Stock | +699,569 | $0.11 | $79k | 10,838,194 | Jul 2, 2026 |
| Jul 1, 2026 | BLGO BIOLARGO, INC. | AGrant or award Common Stock | +219,914 | $0.11 | $25k | 11,058,108 | Jul 2, 2026 |
| Dec 31, 2025 | BLGO BIOLARGO, INC. | AGrant or award Common Stock | +130,222 | $0.18 | $24k | 10,523,625 | Jan 5, 2026 |
| Nov 14, 2025 | BLGO BIOLARGO, INC. | AGrant or award Common Stock | +310,269 | $0.16 | $50k | 10,393,403 | Nov 17, 2025 |
| Jul 14, 2025 | BLGO BIOLARGO, INC. | AGrant or award Common Stock | +169,498 | $0.20 | $34k | 10,029,542 | Jul 16, 2025 |
Questions about Dennis P Calvert
Answered from the filings on this page, as of the latest one.
Is Dennis P Calvert buying or selling?
Dennis P Calvert has no open-market buy or sell on SEC Form 4; the filings on record are grants, exercises and other transactions.
How did Dennis P Calvert's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Dennis P Calvert has 0.
Where does Dennis P Calvert file Form 4?
Dennis P Calvert has filed Form 4 at BLGO (BIOLARGO, INC.) as President. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.