As of 31 Dec 2025, 1 institutional investors reported holding 117,838 shares of BIOLARGO, INC. - COMMON STOCK (BLGO).
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 117,838 | $21,718 | $0.18 | 1 | |
| 2025 Q3 | 117,838 | $19,964 | $0.17 | 1 | |
| 2025 Q2 | 117,838 | $24,229 | $0.21 | 1 | |
| 2025 Q1 | 117,838 | $32,582 | -$7 | $0.28 | 1 |
| 2024 Q4 | 117,878 | $22,396 | +$7 | $0.18 | 2 |
| 2024 Q3 | 117,838 | $27,607 | $0.23 | 1 | |
| 2024 Q2 | 117,838 | $30,049 | -$7 | $0.26 | 1 |
| 2024 Q1 | 117,838 | $41,821 | $0.35 | 1 | |
| 2023 Q4 | 117,878 | $19,800 | +$7 | $0.17 | 2 |
| 2023 Q3 | 117,838 | $19,526 | $0.17 | 1 | |
| 2023 Q2 | 117,838 | $21,000 | $0.18 | 1 | |
| 2023 Q1 | 117,838 | $24,000 | $0.20 | 1 | |
| 2022 Q4 | 117,838 | $23,000 | $0.20 | 1 | |
| 2022 Q3 | 117,838 | $32,000 | $0.27 | 1 | |
| 2022 Q2 | 117,838 | $21,000 | $0.18 | 1 | |
| 2022 Q1 | 117,838 | $27,000 | $0.23 | 1 | |
| 2021 Q4 | 117,838 | $25,000 | $0.21 | 1 | |
| 2021 Q3 | 117,838 | $22,000 | $0.19 | 1 | |
| 2021 Q2 | 117,838 | $20,000 | $0.17 | 1 | |
| 2021 Q1 | 117,838 | $27,000 | -$1,000 | $0.23 | 1 |
| 2020 Q4 | 132,838 | $15,000 | +$1,000 | $0.09 | 2 |
| 2020 Q3 | 117,838 | $18,000 | $0.15 | 1 | |
| 2020 Q2 | 117,838 | $19,000 | $0.16 | 1 | |
| 2020 Q1 | 117,838 | $20,000 | $0.17 | 1 | |
| 2019 Q4 | 117,838 | $25,000 | -$4,000 | $0.21 | 1 |
| 2019 Q3 | 129,138 | $41,000 | +$4,000 | $0.33 | 2 |
| 2019 Q2 | 117,838 | $27,000 | -$2,000 | $0.23 | 1 |
| 2019 Q1 | 128,138 | $21,000 | +$2,000 | $0.18 | 2 |
| 2018 Q4 | 117,838 | $28,000 | $0.24 | 1 | |
| 2018 Q3 | 117,838 | $32,000 | $0.27 | 1 | |
| 2018 Q2 | 117,838 | $51,000 | $0.43 | 1 | |
| 2018 Q1 | 117,838 | $31,000 | $0.26 | 1 | |
| 2017 Q4 | 117,838 | $45,000 | $0.38 | 1 | |
| 2017 Q3 | 117,838 | $60,000 | $0.51 | 1 | |
| 2017 Q2 | 117,838 | $51,000 | $0.43 | 1 | |
| 2017 Q1 | 117,838 | $59,000 | $0.50 | 1 | |
| 2016 Q4 | 117,838 | $97,000 | $0.82 | 1 | |
| 2016 Q3 | 117,838 | $90,000 | +$86,000 | $0.76 | 1 |
| 2016 Q2 | 10,000 | $4,000 | +$3,000 | $0.40 | 1 |
| 2016 Q1 | 5,000 | $1,000 | +$1,000 | $0.20 | 1 |