XOOMAR

BIOMERICA INC (BMRA)

Every FINRA and SEC series the site collects for BIOMERICA INC: short interest with days to cover, daily short sale volume, fails to deliver and Form 4 insider trades. Listed on Nasdaq.

Download CSV

58K

Short interest

settlement 2026-08-31

1.0

Days to cover

+215.6% vs prior

34.6%

Short share of volume

2026-09-17

4,582

Fails to deliver

settlement 2026-08-28

5 people

Insiders buying, 30 days

$158K combined, latest 2026-08-26

$158K

Insider flow, 90 days

5 buys, 0 sells

As of 2026-09-17.

Short interest

FINRA, twice a month; the last 12 months shown, all 48 settlements in the JSON

As of 31 August 2026, short interest in BMRA is 57,854 shares, up 34,800 shares over the last month. Over the last 48 readings it ranged from 18,333 shares (14 August 2026) to 1,425,640 shares (29 November 2024). The latest reading sits at the bottom of that range. At the reported average volume of 319K shares a day that is 1.0 days to cover.

Embed this chartkeeps the attribution line it carries
<iframe src="https://xoomar.com/embed/stocks/bmra" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>
PreviewDark previewAdd ?theme=dark to the src for a dark chart.
SettlementShares shortChangeAvg daily volumeDays to cover
2026-08-3157,854+215.6%319,2631.00
2026-08-1418,333-20.5%5,5643.29
2026-07-3123,054+4.5%6,4653.57
2026-07-1522,058-32.4%6,9933.15
2026-06-3032,611-13.2%18,3481.78
2026-06-1537,581-53.0%19,8451.89
2026-05-2979,979-12.7%16,1324.96
2026-05-1591,606+44.5%21,9674.17
2026-04-3063,380+3.8%15,2524.16
2026-04-1561,056-17.0%29,7802.05
2026-03-3173,534+63.0%26,0312.82
2026-03-1345,117-26.0%19,5262.31
2026-02-2760,973-15.7%15,9033.83
2026-02-1372,362-2.7%9,8447.35
2026-01-3074,357-15.7%17,6704.21
2026-01-1588,194-4.4%27,5703.20
2025-12-3192,289+123.2%234,8341.00
2025-12-1541,348+39.5%23,0981.79
2025-11-2829,633-26.0%18,5281.60
2025-11-1440,058+15.5%18,0422.22
2025-10-3134,695-40.8%387,4601.00
2025-10-1558,650-56.6%37,5461.56
2025-09-30135,108-38.4%27,9434.84
2025-09-15219,391+89.1%793,1051.00

Daily short volume

FINRA Reg SHO, last 60 sessions. JSON

As of 17 September 2026, the short share of BMRA volume is 34.6%, down 22.2 points over the last five sessions. Over the last 52 readings it ranged from 0.3% (20 August 2026) to 89.1% (3 August 2026). The latest reading is 3.0 points above the 30-session average of 31.6%, on 32K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-09-1711K32K34.6%0
2026-09-164K9K50.6%0
2026-09-152K14K17.6%0
2026-09-149K15K59.3%0
2026-09-112K9K22.9%0
2026-09-102K3K56.9%302
2026-09-095K12K44.2%982
2026-09-0818K49K36.3%0
2026-09-0415K32K46.1%0
2026-09-036K34K18.9%0
2026-09-0221K38K55.5%0
2026-09-015K19K25.3%300
2026-08-315K15K31.2%0
2026-08-2811K52K21.3%0
2026-08-271.1M2.1M54.3%5,661
2026-08-264062K16.5%0
2026-08-256K11K55.3%0
2026-08-246144K16.1%0
2026-08-216K7K74.4%0
2026-08-2062K0.3%0
2026-08-196285K12.0%0
2026-08-181K3K46.0%0
2026-08-171273K3.9%1
2026-08-142K7K20.7%0
2026-08-132424K5.9%0
2026-08-122422K13.3%0
2026-08-116621K66.1%0
2026-08-105743K22.9%0
2026-08-077646716.3%0
2026-08-06431K3.1%0

Fails to deliver

SEC, by settlement date. JSON

As of 28 August 2026, the fails-to-deliver balance in BMRA is 4,582 shares, up 4,240 shares over the last settlement date. Over the last 52 readings it ranged from 1 share (8 April 2026) to 120,861 shares (17 October 2025). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-08-284,582$2.10$10K
2026-08-27342$1.73$592
2026-08-13227$1.60$363
2026-08-12282$1.57$443
2026-08-11229$1.63$373
2026-08-0690$1.64$148
2026-08-05125$1.53$191
2026-07-286$1.60$10
2026-07-229$1.62$15
2026-07-1747$1.63$77
2026-07-068$1.75$14
2026-06-101,126$2.03$2K
2026-06-017,166$2.43$17K
2026-05-297,166$2.43$17K
2026-05-272,312$2.44$6K
2026-05-20896$2.38$2K
2026-05-1852,231$2.34$122K
2026-05-1552,231$2.43$127K
2026-05-126$2.28$14
2026-05-11346$2.15$744
2026-05-08340$2.22$755
2026-05-0718,774$2.21$41K
2026-05-068,791$2.19$19K
2026-04-2222$2.17$48
2026-04-1726,507$2.20$58K
2026-04-1624$2.11$51
2026-04-102,225$2.20$5K
2026-04-081$2.16$2
2026-04-0710$2.17$22
2026-04-0610$2.19$22

Insider trades

SEC Form 4, newest first. JSON

Insiders at BMRA reported 5 open-market buys worth $158K in the last 90 days and no open-market sells. Clustered voluntary buying is historically the stronger insider signal because insiders buy for one reason. Latest filing: MOATAZEDI DAVID on 2026-08-26.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-08-26MOATAZEDI DAVIDn/aBuy10K$1.60$16K41K
2026-08-26Chin Ericn/aBuy6K$1.60$10K39K
2026-08-26Irani Zackary S.Chief Executive OfficerBuy31K$1.60$50K243K
2026-08-26BARBIERI ALLENExecutive Vice ChairmanBuy20K$1.60$32K74K
2026-08-20Gary M. Huffn/aBuy31K$1.60$50K51K
2025-12-12Lu GaryChief Financial OfficerGrant40K$0.00$059K
2025-12-12Irani Zackary S.Chief Executive OfficerGrant53K$0.00$0211K
2025-12-12Gary M. Huffn/aGrant20K$0.00$020K
2025-12-12MOATAZEDI DAVIDn/aGrant20K$0.00$031K
2025-12-12BARBIERI ALLENExecutive Vice-ChairmanGrant30K$0.00$054K
2025-12-12Chin Ericn/aGrant23K$0.00$033K
2024-12-13Lu GaryChief Financial OfficerGrant155K$0.31$48K155K
2024-12-13BARBIERI ALLENExecutive Vice ChairmanGrant110K$0.31$34K188K
2024-12-13Irani Zackary S.Chief Executive OfficerGrant250K$0.31$78K1.3M
2024-12-13Emerson JaneDirectorGrant85K$0.31$26K156K
2024-12-13MOATAZEDI DAVIDDirectorGrant85K$0.31$26K85K
2024-12-13Coste CatherineDirectorGrant85K$0.31$26K129K
2023-05-25Irani Zackary S.Chief Executive OfficerBuy200$1.55$3101.0M
2023-05-24Irani Zackary S.Chief Executive OfficerBuy500$1.61$8051.0M
2023-05-12Irani Zackary S.Chief Executive OfficerBuy2K$1.17$2K1.0M
2023-05-10Irani Zackary S.Chief Executive OfficerBuy500$1.27$6351.0M
2023-05-09Irani Zackary S.Chief Executive OfficerBuy300$1.39$4171.0M
2023-05-04Irani Zackary S.Chief Executive OfficerBuy1K$1.36$1K1.0M
2023-04-28Irani Zackary S.Chief Executive OfficerBuy2K$1.34$2K1.0M
2023-04-27Irani Zackary S.Chief Executive OfficerBuy3K$1.31$3K1.0M
2023-04-26Irani Zackary S.Chief Executive OfficerBuy7K$1.26$9K1.0M
2023-01-27BARBIERI ALLENExecutive Vice ChairmanBuy2K$2.94$5K101K
2023-01-26Coste CatherineDirector,OtherBuy2K$2.96$6K44K
2023-01-25Irani Zackary S.Chief Executive OfficerBuy2K$2.85$5K1.0M
2023-01-24Irani Zackary S.Chief Executive OfficerBuy2K$2.81$6K1.0M
2020-10-26Coste CatherineDirectorBuy9K$5.45$50K9K
2020-10-05CANO FRANCISDirectorGift20Kn/an/a147K
2020-04-21Sirgo Mark ADirectorSell5K$8.11$41K9K
2020-04-17Sirgo Mark ADirectorSell1K$8.07$11K16K
2020-04-17Sirgo Mark ADirectorSell68$8.09$55019K
2020-04-17Sirgo Mark ADirectorSell100$8.06$80619K
2020-04-17Sirgo Mark ADirectorSell2K$8.08$20K14K
2020-04-17Sirgo Mark ADirectorSell1K$8.05$9K17K
2020-04-01BARBIERI ALLENDirectorGift23K$0.00$0137K
2020-02-28Irani Zackary S.Chief Executive OfficerJ78K$2.85$224K1.0M
2020-01-02MOORE JANETChief Financial OfficerGift20Kn/an/a102K

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 the rarer, stronger signal.

Large holders (13D and 13G)

One row per reporting person, newest filing first. JSON

3 holders above 5% have filed on BMRA, 3 on Schedule 13D (active intent). The largest reported stake is BRC Group Holdings, Inc. at 10.0% of the class (460,080 shares), filed 2026-08-28 for an event on 2026-08-25.

FiledFormHolderSharesOf classEvent
2026-08-2813DBRC Group Holdings, Inc.parent holding company460K10.0%2026-08-25
2026-08-2813DB. Riley Principal Capital, LLCother entity460K10.0%2026-08-25
2026-08-2813DBryant R. Rileyindividual460K10.0%2026-08-25

What this page is

BIOMERICA INC 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 pulls every series the site collects for one ticker onto one URL, keyed by the SEC's own ticker list, 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 summary sentence built from the rows (last value, change, range with dates) and its own JSON and CSV links. Nothing on the page is written by a model; the sentences change only when the data does. A page exists only for companies with data in at least two series, and every section says when its source last updated.

This page follows BIOMERICA INC (BMRA), SEC CIK 73290, listed on Nasdaq. The cross-market tables live on the short interest and insider transactions hubs.

Source and method

Short interest
FINRA consolidated short interestTwice a month, about eight business days after settlement. Latest 2026-08-31.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesEvery trading day, loaded the following morning. Latest 2026-09-17.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataTwice a month, a few weeks after the half month ends. Latest 2026-08-28.JSON and CSV
Large holders
SEC EDGAR Schedule 13D and 13GEDGAR read every 30 minutes; 13D within five business days of crossing 5%, 13G on the passive schedule. Latest 2026-08-28.JSON and CSV
Insider trades
SEC EDGAR Form 4EDGAR read every 30 minutes; filings are due two business days after the trade. Latest 2026-08-26.JSON and CSV
Company record
EDGAR filing index for CIK 73290Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits
30 requests a minute without a key, 120 a minute with a key from a free account.

Data checks. Every dataset is checked against its source once a day. This dataset passed the last run, 18 Sep 05:40 UTC.

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 crowded short are the combination that has historically preceded squeezes; insider sells next to a crowded short 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 BMRA is sold short?
57,854 shares were held short at the 2026-08-31 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 BMRA's daily short volume?
On 2026-09-17, 10,999 of the 31,755 BMRA shares reported to FINRA were sold short, 34.6% of the day's reported volume. Short volume is a flow for one day, not a position.
Does BMRA have fails to deliver?
The SEC's latest file shows 4,582 BMRA shares failed to deliver at settlement 2026-08-28. Fails are reported per settlement date and published twice a month with a lag.
Are BMRA insiders buying or selling?
Insiders at BMRA reported 5 open-market buys worth $158K in the last 90 days and no open-market sells. Clustered voluntary buying is historically the stronger insider signal because insiders buy for one reason. Latest filing: MOATAZEDI DAVID on 2026-08-26.
Who owns more than 5% of BMRA?
3 holders above 5% have filed on BMRA, 3 on Schedule 13D (active intent). The largest reported stake is BRC Group Holdings, Inc. at 10.0% of the class (460,080 shares), filed 2026-08-28 for an event on 2026-08-25.

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