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TOMI Environmental Solutions (TOMZ)

TOMI Environmental Solutions on one page: short interest, daily short volume, fails to deliver, 13F holders, earnings dates and insider trades. Listed on Nasdaq.

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16K

Short interest

settlement 2026-10-15

1.0

Days to cover

unchanged vs prior

21.8%

Short share of volume

2026-11-02

949

Fails to deliver

settlement 2026-10-14

Fri 13 Nov

Next earnings

estimated date

$0

Insider flow, 90 days

0 buys, 0 sells

As of 2026-11-02.

Short interest

FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSON

As of 15 October 2026, short interest in TOMZ is 16,362 shares, down 12,930 shares over the last month. Over the last 48 readings it ranged from 2,837 shares (13 December 2024) to 557,895 shares (30 April 2026). The latest reading sits at the bottom of that range. At the reported average volume of 32K shares a day that is 1.0 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-10-1516,362-31.1%32,1301.00
2026-09-3023,750-18.9%273,9771.00
2026-09-1529,292-5.3%8,3983.49
2026-08-3130,948-25.9%18,9771.63
2026-08-1441,774+166.3%34,7681.20
2026-07-3115,685-11.0%48,7151.00
2026-07-1517,616-73.7%87,2451.00
2026-06-3066,952-46.7%288,5571.00
2026-06-15125,598-44.6%339,6071.00
2026-05-29226,850-58.8%357,5721.00
2026-05-15551,170-1.2%449,1421.23
2026-04-30557,895+755.7%2,336,1811.00
2026-04-1565,195-39.3%36,7221.78
2026-03-31107,468-8.5%69,0751.56
2026-03-13117,492-59.4%53,4622.20
2026-02-27289,426+2173.9%516,3921.00
2026-02-1312,728-44.4%18,5921.00
2026-01-3022,876+83.0%15,2361.50
2026-01-1512,500-18.2%12,7771.00
2025-12-3115,274+3.9%25,0621.00
2025-12-1514,697+391.5%14,0531.05
2025-11-282,990-54.5%21,5341.00
2025-11-146,564-39.6%20,4101.00
2025-10-3110,872-40.2%41,7911.00
2025-10-1518,179+32.5%34,0181.00
2025-09-3013,719+68.3%107,7521.00
2025-09-158,154-11.2%19,2941.00
2025-08-299,177-5.1%33,4501.00
2025-08-159,667-54.3%32,7531.00
2025-07-3121,134+72.3%19,2071.10
2025-07-1512,265-47.4%31,2691.00
2025-06-3023,329-39.3%13,1931.77
2025-06-1338,438-70.3%58,8251.00
2025-05-30129,192-23.2%12,13410.65
2025-05-15168,174-8.1%8,68319.37
2025-04-30182,993-12.6%15,54711.77
2025-04-15209,436+87.3%36,1845.79
2025-03-31111,822+72.9%312,8161.00
2025-03-1464,690-20.1%18,2943.54
2025-02-2880,911-4.1%24,0533.36
2025-02-1484,388+1.5%21,6783.89
2025-01-3183,162-30.3%88,2591.00
2025-01-15119,384-45.0%99,9361.19
2024-12-31217,224+7556.8%554,6371.00
2024-12-132,837-45.5%16,5201.00
2024-11-295,202+16.4%13,0731.00
2024-11-154,469-64.4%21,4931.00
2024-10-3112,556+307.4%41,8851.00

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 2 November 2026, the short share of TOMZ volume is 21.8%, up 0.7 points over the last five sessions. Over the last 30 readings it ranged from 5.2% (14 October 2026) to 79.8% (28 October 2026). The latest reading is 14.3 points below the 30-session average of 36.1%, on 71K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-11-0215K71K21.8%0
2026-10-3018K55K32.7%0
2026-10-295571K38.2%0
2026-10-288K10K79.8%0
2026-10-276K7K78.9%0
2026-10-261K5K21.1%0
2026-10-233K8K32.2%0
2026-10-227265K13.6%495
2026-10-213972K17.9%0
2026-10-201K4K25.1%0
2026-10-1929283235.1%275
2026-10-169K17K52.9%729
2026-10-151K4K28.3%7
2026-10-143968K5.2%10
2026-10-133K11K23.9%0
2026-10-124996K8.9%0
2026-10-091K9K13.9%0
2026-10-088K10K74.0%0
2026-10-0713K17K73.0%0
2026-10-061K24K5.7%370
2026-10-0528K44K63.8%0
2026-10-026K12K46.2%0
2026-10-0122K33K66.7%3,963
2026-09-3079910K8.2%0
2026-09-2910K48K21.9%3,365
2026-09-285K14K39.4%650
2026-09-2540K83K48.0%0
2026-09-247K14K47.0%0
2026-09-232K10K24.1%0
2026-09-2225K70K35.3%2,903

Fails to deliver

SEC, the last 30 settlement dates with a fail. JSON

As of 14 October 2026, the fails-to-deliver balance in TOMZ is 949 shares, down 3,308 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (25 August 2026) to 4,257 shares (8 October 2026).

SettlementShares failedPriceValue
2026-10-14949$1.65$2K
2026-10-084,257$1.59$7K
2026-10-062,828$1.58$4K
2026-10-022,203$1.36$3K
2026-09-29722$1.38$996
2026-09-25330$1.42$469
2026-09-2332$1.46$47
2026-09-223,382$1.43$5K
2026-09-1649$1.56$76
2026-09-151$1.58$2
2026-09-14445$1.58$703
2026-09-083,248$1.66$5K
2026-09-0471$1.65$117
2026-08-311,452$1.70$2K
2026-08-28860$1.77$2K
2026-08-271,341$1.66$2K
2026-08-251$1.69$2
2026-08-2493$1.76$164
2026-08-2014$1.74$24
2026-08-19471$1.76$829
2026-08-18990$1.78$2K
2026-08-17411$1.75$719
2026-08-13104$1.69$176
2026-08-11739$1.73$1K
2026-08-10354$1.82$644
2026-08-07287$1.87$537
2026-08-04957$1.74$2K
2026-07-2428$1.63$46
2026-07-221,879$1.82$3K
2026-07-212,587$1.81$5K

Insider trades

SEC Form 4, newest first. JSON

No open-market insider trades were reported for TOMZ in the last 90 days. The most recent filings are listed below. Latest filing: PAUL HAROLD (Director) on 2026-04-22.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-04-22PAUL HAROLDDirectorGrant10K$0.55$6K91K
2026-04-22Lim Boh SoonDirectorGrant10K$0.55$6K209K
2026-04-22Fragasso FrancescoDirectorGrant10K$0.55$6K30K
2026-01-09PAUL HAROLDDirectorGrant20K$0.79$16K81K
2026-01-09Lim Boh SoonDirectorGrant10K$0.79$8K199K
2026-01-09Fragasso FrancescoDirectorGrant20K$0.79$16K20K
2025-10-06Vanston David CecilChief Financial OfficerGrant100K$0.00$0100K
2025-05-12Anderson KellyDirectorGrant20K$0.85$17K130K
2025-05-12JOHNSEN WALTER CDirectorGrant20K$0.85$17K130K
2025-05-12Lim Boh SoonDirectorGrant20K$0.85$17K189K
2024-05-15JOHNSEN WALTER CDirectorGrant20K$0.75$15K110K
2024-05-15Lim Boh SoonDirectorGrant20K$0.75$15K169K
2024-05-15Anderson KellyDirectorGrant20K$0.75$15K110K
2023-08-22Shane Dr. Halden StuartCEOBuy3K$1.20$3K2.5M
2023-08-18Shane Dr. Halden StuartCEOBuy3K$1.07$3K2.5M
2023-01-26JOHNSEN WALTER CDirectorGrant20K$0.85$17K90K
2023-01-26Anderson KellyDirectorGrant20K$0.85$17K90K
2023-01-26Lim Boh SoonDirectorGrant20K$0.85$17K149K
2022-07-16Shane Dr. Halden StuartChief Executive OfficerExercise or conversion31K$0.80$25K3.9M
2022-01-20JOHNSEN WALTER CDirectorGrant17K$1.14$20K70K
2022-01-20Anderson KellyDirectorGrant17K$1.14$20K70K
2022-01-20Lim Boh SoonDirectorGrant17K$1.14$20K129K
2021-09-03Shane Dr. Halden StuartChief Executive OfficerBuy21K$2.02$43K3.9M
2021-09-02Shane Dr. Halden StuartChief Executive OfficerBuy22K$2.00$44K3.9M
2021-01-07Lim Boh SoonDirectorGrant13K$4.56$57K111K
2021-01-07JOHNSEN WALTER CDirectorGrant13K$4.56$57K53K
2021-01-07Anderson KellyDirectorGrant13K$4.56$57K53K
2021-01-07PAUL HAROLDSecretaryGrant13K$4.56$57K202K
2020-10-01Jennings NickChief Financial OfficerGrant13K$6.17$77K13K
2020-05-14PAUL HAROLDSecretarySmall acquisition1K$0.78$9561.5M
2020-05-14PAUL HAROLDSecretaryExercise or conversion20K$0.05$1K1.5M
2020-05-14PAUL HAROLDSecretaryGift20K$0.00$01.5M
2020-01-09Lim Boh SoonDirectorGrant100K$0.12$12K790K
2020-01-09JOHNSEN WALTER CDirectorGrant100K$0.12$12K325K
2020-01-09PAUL HAROLDSecretaryGrant100K$0.12$12K1.5M
2020-01-09Anderson KellyDirectorGrant100K$0.12$12K325K

Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.

13F holders

Tracked managers holding TOMZ at their latest 13F. JSON

1 of the 30 tracked managers held TOMZ at their latest 13F, $90K in total at quarter-end prices. Citadel Advisors is the largest at $90K (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 1 added shares and 0 cut.

FundQuarterSharesValueOf portfolioChange in shares
Citadel Advisors2026-06-30109K$90K0.00%new

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

What this page is

TOMI Environmental Solutions in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.

This page follows TOMI Environmental Solutions (TOMZ), SEC CIK 314227, listed on Nasdaq. The cross-market tables live on the short interest and insider transactions hubs.

Source and updates

Short interest
FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-11-02.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-14.JSON and CSV
13F holders
SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Earnings dates
SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-14.JSON and CSV
Insider trades
SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-04-22.JSON and CSV
Company record
EDGAR filing index for CIK 314227Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits
10 requests a minute without a key, 30 with a free key from a free account.

How to read it

  • Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
  • Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
  • Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Other company pages

Datasets

Frequently Asked Questions

How much of TOMZ is sold short?
16,362 shares were held short at the 2026-10-15 settlement, 1.0 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is TOMZ's daily short volume?
On 2026-11-02, 15,350 of the 70,584 TOMZ shares reported to FINRA were sold short, 21.8% of the day's reported volume. Short volume is a flow for one day, not a position.
Does TOMZ have fails to deliver?
The SEC's latest file shows 949 TOMZ shares failed to deliver at settlement 2026-10-14. Fails are reported per settlement date and published twice a month with a lag.
Are TOMZ insiders buying or selling?
No open-market insider trades were reported for TOMZ in the last 90 days. The most recent filings are listed below. Latest filing: PAUL HAROLD (Director) on 2026-04-22.
Which tracked 13F managers own TOMZ?
1 of the 30 tracked 13F managers held TOMZ shares at their latest filing, $90K in all. The largest: Ken Griffin's Citadel Advisors (109K shares, $90K).

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.