BLGOOTCChemicals & Allied ProductsFiscal year ends December 31
BIOLARGO, INC.
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 14, 2026
$0.07+0.00 (+0.90%)
Close on Oct 19, 2026
- Market cap
- $23.27M
- P/E (TTM)
- –
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
0.0%
0M of 329M shares
Institutional holders
1
0 new, 0 sold out
Net institutional buying
0M
In Q2 2026
Insider trades, 12 months
0 buys · 0 sales
Open-market trades only
Shares held by institutions
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of BLGO | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| First American Trust, Fsb | 117,838 | 0.04% | $13.38K | – | 0.00% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 1 | 0M | 0.0% | 0 / 0 | 0 / 0 | 0M | 0M |
| Q1 2026 | 1 | 0M | 0.0% | 0 / 0 | 0 / 0 | 0M | 0M |
| Q4 2025 | 1 | 0M | 0.0% | 0 / 0 | 0 / 0 | 0M | 0M |
| Q3 2025 | 1 | 0M | 0.0% | 0 / 0 | 0 / 0 | 0M | 0M |
| Q2 2025 | 1 | 0M | 0.0% | 0 / 0 | 0 / 0 | 0M | 0M |
| Q1 2025 | 1 | 0M | 0.0% | 0 / 0 | 0 / 1 | 0M | 0M |
| Q4 2024 | 2 | 0M | 0.0% | 1 / 0 | 0 / 0 | 0M | 0M |
| Q3 2024 | 1 | 0M | 0.0% | 0 / 0 | 0 / 0 | 0M | 0M |
| Q2 2024 | 1 | 0M | 0.0% | 0 / 0 | 0 / 0 | 0M | 0M |
| Q1 2024 | 1 | 0M | 0.0% | 0 / 0 | 0 / 0 | 0M | 0M |
| Q4 2023 | 2 | 0M | 0.0% | 1 / 0 | 0 / 0 | 0M | 0M |
| Q3 2023 | 1 | 0M | 0.0% | 0 / 0 | 0 / 0 | 0M | 0M |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Kenneth Reay Code | Chief Science Officer, Director | 48,547,331 | 14.77% | Jul 7, 2026 |
| Dennis P. Calvert | President, Director | 12,586,803 | 3.83% | Jul 2, 2026 |
| Charles K. Dargan | Chief Financial Officer | 190,244 | 0.06% | Feb 3, 2026 |
| Dennis E. Marshall | Director | 414,737 | 0.13% | Jul 2, 2026 |
| Linda Park | Director | 190,362 | 0.06% | Jul 2, 2026 |
| Jack B. Strommen | Director | 9,194,123 | 2.80% | Jul 2, 2026 |
| Christina Elaine Bray | Director | – | – | Jul 2, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Kenneth Reay Code Chief Science Officer, Director | Jul 7, 2026 | Award | +532,567 | $0.11 | $58.58K | 26,408,319 |
| Dennis P. Calvert President, Director | Jul 1, 2026 | Award | +219,914 | $0.11 | $24.19K | 11,058,108 |
| Dennis P. Calvert President, Director | Jun 30, 2026 | Award | +699,569 | $0.11 | $76.95K | 10,838,194 |
| Kenneth Reay Code Chief Science Officer, Director | Mar 31, 2026 | Award | +69,444 | $0.16 | $11.11K | 25,875,752 |
| Kenneth Reay Code Chief Science Officer, Director | Dec 31, 2025 | Award | +54,803 | $0.18 | $9.86K | 25,806,308 |
| Dennis P. Calvert President, Director | Dec 31, 2025 | Award | +130,222 | $0.18 | $23.44K | 10,523,625 |
| Dennis P. Calvert President, Director | Nov 14, 2025 | Award | +310,269 | $0.16 | $49.64K | 10,393,403 |
| Kenneth Reay Code Chief Science Officer, Director | Nov 14, 2025 | Award | +313,754 | $0.16 | $50.20K | 25,751,505 |
| Kenneth Reay Code Chief Science Officer, Director | Jul 14, 2025 | Award | +181,253 | $0.20 | $36.25K | 25,131,495 |
| Dennis P. Calvert President, Director | Jul 14, 2025 | Award | +169,498 | $0.20 | $33.90K | 10,029,542 |
| Kenneth Reay Code Chief Science Officer, Director | Dec 31, 2024 | Award | +57,666 | $0.19 | $10.96K | 25,120,245 |
| Kenneth Reay Code Chief Science Officer, Director | Dec 31, 2023 | Award | +72,621 | $0.17 | $12.35K | 25,062,579 |
| Dennis P. Calvert President, Director | Dec 31, 2023 | Award | +50,557 | $0.17 | $8.59K | 9,860,044 |
| Kenneth Reay Code Chief Science Officer, Director | Sep 30, 2023 | Award | +19,010 | $0.17 | $3.23K | 24,989,958 |
| Dennis P. Calvert President, Director | Jul 24, 2023 | Award | +50,553 | $0.18 | $9.10K | 9,809,487 |
| Kenneth Reay Code Chief Science Officer, Director | Jun 30, 2023 | Award | +68,541 | $0.18 | $12.34K | 24,970,948 |
| Kenneth Reay Code Chief Science Officer, Director | Mar 31, 2023 | Award | +30,747 | $0.20 | $6.15K | 24,902,407 |
| Kenneth Reay Code Chief Science Officer, Director | Oct 3, 2022 | Award | +167,781 | $0.27 | $45.30K | 24,871,660 |
| Dennis P. Calvert President, Director | Oct 3, 2022 | Award | +100,549 | $0.27 | $27.15K | 9,758,934 |
| Dennis P. Calvert President, Director | Jul 7, 2022 | Award | +156,111 | $0.18 | $28.10K | 9,658,385 |
| Kenneth Reay Code Chief Science Officer, Director | Jun 30, 2022 | Award | +107,784 | $0.18 | $19.40K | 24,703,879 |
| Kenneth Reay Code Chief Science Officer, Director | Dec 31, 2021 | Award | +15,000 | $0.21 | $3.15K | 24,596,095 |
| Dennis P. Calvert President, Director | Dec 30, 2021 | Gift | −156,000 | – | – | 9,502,274 |
| Kenneth Reay Code Chief Science Officer, Director, 10% owner | Oct 5, 2021 | Award | +61,842 | $0.19 | $11.75K | 24,581,095 |
| Jack B. Strommen Director | Apr 20, 2021 | Conversion | +563,035 | $0.24 | $135.13K | 4,878,579 |
| Dennis P. Calvert President, Director | Apr 1, 2021 | Award | +61,758 | $0.23 | $14.20K | 9,658,274 |
| Kenneth Reay Code Chief Science Officer, Director, 10% owner | Apr 1, 2021 | Award | +75,606 | $0.23 | $17.39K | 24,519,253 |
| Kenneth Reay Code Chief Science Officer, Director, 10% owner | Dec 31, 2020 | Award | +335,840 | $0.12 | $40.30K | 24,443,647 |
| Dennis P. Calvert President, Director | Dec 31, 2020 | Award | +316,260 | $0.12 | $37.95K | 9,596,516 |
| Dennis P. Calvert President, Director | Dec 31, 2020 | Gift | −225,000 | – | – | 9,280,256 |
| Dennis P. Calvert President, Director | Oct 6, 2020 | Award | +164,331 | $0.15 | $24.65K | 9,505,256 |
| Kenneth Reay Code Chief Science Officer, Director, 10% owner | Sep 30, 2020 | Award | +185,339 | $0.15 | $27.80K | 24,107,807 |
| Dennis P. Calvert President, Director | Sep 30, 2020 | Award | +164,331 | $0.15 | $24.65K | 9,505,256 |
| Kenneth Reay Code Chief Science Officer, Director, 10% owner | Jun 30, 2020 | Award | +166,474 | $0.16 | $26.64K | 23,922,468 |
| Dennis P. Calvert President, Director | Jun 30, 2020 | Award | +200,929 | $0.16 | $32.15K | 9,340,925 |
| Dennis P. Calvert President, Director | Mar 31, 2020 | Award | +281,762 | $0.17 | $47.90K | 9,139,996 |
| Kenneth Reay Code Chief Science Officer, Director, 10% owner | Mar 31, 2020 | Award | +366,993 | $0.17 | $62.39K | 23,755,994 |
| Dennis P. Calvert President, Director | Mar 9, 2020 | Gift | −25,000 | – | – | 8,858,234 |
| Dennis P. Calvert President, Director | Dec 31, 2019 | Gift | −225,000 | – | – | 8,883,234 |
| Kenneth Reay Code Chief Science Officer, Director, 10% owner | Sep 30, 2019 | Award | +35,080 | $0.32 | $11.23K | 23,389,001 |
| Dennis P. Calvert President, Director | Jun 30, 2019 | Award | +230,219 | $0.23 | $52.95K | 9,108,234 |
| Kenneth Reay Code Chief Science Officer, Director, 10% owner | Jun 30, 2019 | Award | +235,656 | $0.23 | $54.20K | 23,353,921 |
| Joseph L. Provenzano Secretary, Director | Jun 18, 2019 | Award | +500,000 | – | – | 1,770,743 |
| Kenneth Reay Code Chief Science Officer, Director, 10% owner | Apr 29, 2019 | Award | +311,562 | $0.16 | $49.85K | 23,118,265 |
| Dennis P. Calvert President, Director | Apr 29, 2019 | Award | +268,434 | $0.16 | $42.95K | 8,878,015 |
| Kenneth Reay Code Chief Science Officer, Director, 10% owner | Dec 31, 2018 | Award | +202,845 | $0.24 | $48.68K | 22,806,703 |
| Dennis P. Calvert President, Director | Dec 31, 2018 | Award | +178,956 | $0.24 | $42.95K | 8,609,581 |
| Dennis P. Calvert President, Director | Dec 31, 2018 | Gift | −75,000 | $0.24 | $18.00K | 8,430,625 |
| Kenneth Reay Code Chief Science Officer, Director, 10% owner | Sep 30, 2018 | Award | +130,187 | $0.27 | $35.15K | 22,603,858 |
| Dennis P. Calvert President, Director | Sep 30, 2018 | Award | +119,071 | $0.27 | $32.15K | 8,505,625 |
| Kenneth Reay Code Chief Science Officer, Director, 10% owner | Jul 5, 2018 | Award | +90,553 | $0.43 | $38.94K | 22,473,671 |
| Dennis P. Calvert President, Director | Jul 5, 2018 | Award | +86,397 | $0.43 | $37.15K | 8,386,554 |
| Jack B. Strommen Director | Jun 29, 2018 | Conversion | +7,532 | $0.37 | $2.79K | 4,315,544 |
| Jack B. Strommen Director | May 18, 2018 | Conversion | +2,201,714 | $0.30 | $660.51K | 4,308,012 |
| Jack B. Strommen Director | May 2, 2018 | Conversion | +1,450,400 | $0.25 | $362.60K | 2,106,298 |
| Dennis P. Calvert President, Director | Mar 31, 2018 | Award | +150,197 | $0.26 | $39.05K | 8,300,157 |
| Kenneth Reay Code Chief Science Officer, Director, 10% owner | Mar 31, 2018 | Award | +172,833 | $0.26 | $44.94K | 22,383,118 |
| Jack B. Strommen Director | Mar 23, 2018 | Buy | +110,636 | $0.27 | $29.87K | 655,898 |
| Jack B. Strommen Director | Jan 3, 2018 | Award | +72,179 | $0.41 | $29.59K | 545,262 |
| Kenneth Reay Code Chief Science Officer, Director, 10% owner | Dec 31, 2017 | Award | +71,273 | $0.39 | $27.80K | 22,210,285 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.