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TOMZ · TOMI Environmental Solutions, Inc. · Holdings

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$1.38 +0.02 (+1.47%) At close · Oct 2
Rebalance outlook locked
Going-concern doubt — flagged Aug 14, 2026

Substantial doubt about the company's ability to continue as a going concern.

“These factors raise substantial doubt about our ability to continue as a going concern within one year after the date the financial statements are issued.”
View the 10-Q filed Aug 14, 2026
Customer concentration — top 2 customers 33% of revenue

2 customers — 33% of revenue (For the three months ended June 30, 2026)

“For the three months ended June 30, 2026, two customers accounted for approximately 33% of the Company's revenue.”

One customer — 11% of revenue (For the six months ended June 30, 2026)

“For the six months ended June 30, 2026, one customer accounted for approximately 11% of the Company's revenue.”

One customer — 10% of revenue (For the three months ended June 30, 2025)

“For the three months ended June 30, 2025, one customer accounted for approximately 10% of the Company's revenue.”

2 customers — 29% of receivables (As of June 30, 2026)

“As of June 30, 2026, two customers accounted for approximately 29% of the Company's gross accounts receivable.”

2 customers — 40% of receivables (As of December 31, 2025)

“As of December 31, 2025, two customers accounted for approximately 40% of the Company's gross accounts receivable.”
View the 10-Q filed Aug 14, 2026
Market Cap
$12.05M
Shares
8.14M
Volume · Oct 2 19.04K Avg daily vol (53 sessions) 74.25K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP →
Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.
Holders: 19
Total Value: $911,486
Total Shares: 1,111,580

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 19 13F filers · Δ vs Mar 31, 2026
Top Holder
54.1%
Sep 2023 → Jun 2026 · range 54.1% – 69.8%
−15.8 pts
Top 5
86.5%
Sep 2023 → Jun 2026 · range 86.1% – 94.4%
−7.9 pts
Top 10
95.6%
Sep 2023 → Jun 2026 · range 95.6% – 99.6%
−4.0 pts
HHI
3,233
Sep 2023 → Jun 2026 · range 3,233 – 5,107
Highly concentrated−1,874

Quarterly Activity

vs Mar 31, 2026
New
6
Increased
5
Decreased
4
Sold Out
3
Unchanged
4
Holder count: +3
Institutional value: +70.4%
Shares held: +14.3%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open
VANGUARD FIDUCIARY TRUST CO +11,614 24,811
CITIGROUP INC +4,950 4,955
Spinnaker Investment Group, LLC +3,030 7,943
NORTHERN TRUST CORP +2,094 7,372
Tower Research Capital LLC (TRC) +101 1,412

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open
VANGUARD CAPITAL MANAGEMENT LLC −26,129 200,285
GEODE CAPITAL MANAGEMENT, LLC −874 41,809
CHOREO, LLC −534 5,815
UBS Group AG −521 833

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open
CITADEL ADVISORS LLC 36,250 $89,175
Virtu Financial LLC 6,912 $17,002
XTX Topco Ltd 5,509 $13,551
TWO SIGMA SECURITIES, LLC 4,299 $10,576
OSAIC HOLDINGS, INC. 3,333 $8,199

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
COMMONWEALTH EQUITY SERVICES, LLC 3,686 $6,082
Allworth Financial LP 115 $189
BlackRock, Inc. 1 $1
Filter: New 6 Increased 5 Reduced 4 Sold out 3 Unchanged 4
Showing 19 of 19
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
VANGUARD CAPITAL MANAGEMENT LLC $492,701 54.05% 600,855
GEODE CAPITAL MANAGEMENT, LLC $102,849 11.28% 125,428
CITADEL ADVISORS LLC $89,175 9.78% 108,751
VANGUARD FIDUCIARY TRUST CO $61,035 6.70% 74,433
STATE STREET CORP $42,811 4.70% 52,209
Spinnaker Investment Group, LLC $19,540 2.14% 23,830
NORTHERN TRUST CORP $18,135 1.99% 22,117
Virtu Financial LLC $17,002 1.87% 20,735
CHOREO, LLC $14,305 1.57% 17,446
XTX Topco Ltd $13,551 1.49% 16,526
CITIGROUP INC $12,190 1.34% 14,866
TWO SIGMA SECURITIES, LLC $10,576 1.16% 12,898
OSAIC HOLDINGS, INC. $8,199 0.90% 10,000
Vanguard Global Advisers, LLC $3,634 0.40% 4,432
Tower Research Capital LLC (TRC) $3,474 0.38% 4,237
UBS Group AG $2,049 0.22% 2,500
BARCLAYS PLC $258 0.03% 315
SBI Securities Co., Ltd. $1 0.00% 1
MORGAN STANLEY $1 0.00% 1
Key facts CIK 314227 CUSIP 890023302 13F (30d) 1 filings 1 filers Visit website Investor relations