Security key
09065A100
- Security type / class
- Equity / COMMON STOCK
- Total 13F shares
- 117,838
- Total 13F value
- $13,375
- Share change
- 0
- SEC-reported price per share
- $0.11
- Number of holders
- 1
Report period
Q2 2026
Institutions
1
Top holders
1
BLGO full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q1 2026
BIOLARGO, INC. SEC filings
BIOLARGO, INC. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 09065A100
Recent filing periods:
Ownership snapshot
Top reported holders of BLGO - BIOLARGO, INC. - COMMON STOCK (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Dennis P. Calvert
Disclosed value leader
Dennis P. Calvert
Comparable rows
0/10
Latest evidence
30 Jun 2026
3/4/5
13F
Highest disclosed value: $1,791,413
10 rows are not safely comparable across share classes.
Showing 1-6 of 10 holder rows.
Quick read
Dennis P. Calvert has the largest disclosed position value at $1.79M.
0 of 10 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Dennis P. Calvert's linked filing trail.
Disclosed position value
Top 2
Dennis P. Calvert
$1.79M
FIRST AMERICAN TRUST, FSB
$19.1K
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 10 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Dennis P. Calvert |
3/4/5
President, Director
|
—
class O/S missing
|
$1,791,413
11,058,108 shares
|
— | 30 Jun 2026 |
| FIRST AMERICAN TRUST, FSB |
13F
Company
|
—
class O/S missing
|
$19,090
117,838 shares
|
— | 31 Mar 2026 |
| Charles K. Dargan |
3/4/5
Chief Financial Officer
|
—
class O/S missing
|
—
5,931,668 shares
|
— | 01 Feb 2026 |
| Dennis E. Marshall |
3/4/5
Director
|
—
class O/S missing
|
—
5,804,674 shares
|
— | 30 Jun 2026 |
| John S. Runyan |
3/4/5
Director
|
—
class O/S missing
|
—
2,854,951 shares
|
— | 03 Oct 2022 |
| Jack B. Strommen |
3/4/5
Director
|
—
class O/S missing
|
—
2,584,262 shares
|
— | 30 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
1
Shares
117,838
Rows available
1
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2026 vs Q1 2026 Across Filers
Q1 2026 holders
1
Q2 2026 holders
1
Holder diff
0
| Investor | Q1 2026 Shares | Q2 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q2 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend