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Azenta (AZTA)

Azenta on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as special industry machinery, nec.

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5.3M

Short interest

settlement 2026-09-30

6.1

Days to cover

-0.1 days vs prior

65.8%

Short share of volume

2026-10-12

7

Fails to deliver

settlement 2026-08-20

Tue 10 Nov

Next earnings

estimated date

$8K

Insider flow, 90 days

1 buys, 0 sells

As of 2026-10-12.

Short interest

FINRA, twice a month. The newest 24 settlements in the table, 48 in the chart. JSON

As of 30 September 2026, short interest in AZTA is 5,319,092 shares, down 51,515 shares over the last month. Over the last 48 readings it ranged from 3,105,339 shares (31 October 2025) to 6,291,261 shares (15 June 2026). At the reported average volume of 869K shares a day that is 6.1 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-09-305,319,092-1.2%869,2476.12
2026-09-155,382,386+0.2%868,2076.20
2026-08-315,370,607+2.3%752,4277.14
2026-08-145,250,376-1.7%744,9187.05
2026-07-315,339,160-11.5%570,2029.36
2026-07-156,032,546-3.0%607,7809.93
2026-06-306,221,125-1.1%730,0398.52
2026-06-156,291,261+7.3%985,1796.39
2026-05-295,865,275-6.1%1,479,4093.96
2026-05-156,245,518+4.9%1,769,6113.53
2026-04-305,955,507+7.9%798,6047.46
2026-04-155,521,477+4.0%886,5746.23
2026-03-315,306,646+10.4%1,055,8305.03
2026-03-134,806,509+3.0%964,4944.98
2026-02-274,666,214-8.0%586,3647.96
2026-02-135,072,280+21.2%1,202,3064.22
2026-01-304,184,344+3.1%655,9896.38
2026-01-154,057,819-1.9%491,0898.26
2025-12-314,134,920+1.7%685,2946.03
2025-12-154,066,717+21.1%811,8685.01
2025-11-283,358,652+4.3%834,2154.03
2025-11-143,220,956+3.7%428,9957.51
2025-10-313,105,339-3.7%467,1656.65
2025-10-153,226,030-2.7%484,5046.66

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 12 October 2026, the short share of AZTA volume is 65.8%, up 1.6 points over the last five sessions. Over the last 30 readings it ranged from 21.7% (2 September 2026) to 71.5% (9 October 2026). The latest reading is 18.8 points above the 30-session average of 47.0%, on 269K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-10-12177K269K65.8%0
2026-10-09185K259K71.5%0
2026-10-08231K339K68.1%0
2026-10-07417K638K65.3%0
2026-10-06589K1.0M56.8%0
2026-10-05508K792K64.1%0
2026-10-02767K1.4M53.1%0
2026-10-01146K242K60.6%0
2026-09-3080K209K38.2%0
2026-09-2992K356K25.7%100
2026-09-2872K258K28.0%70
2026-09-2590K317K28.4%0
2026-09-24121K363K33.2%0
2026-09-23117K291K40.1%0
2026-09-2294K316K29.8%0
2026-09-2177K213K36.1%0
2026-09-1878K161K48.5%0
2026-09-17151K240K62.8%0
2026-09-16128K181K70.8%0
2026-09-15139K201K69.1%0
2026-09-14132K203K64.9%0
2026-09-11114K312K36.5%0
2026-09-10111K366K30.4%0
2026-09-09117K354K33.1%0
2026-09-08142K344K41.3%0
2026-09-04131K304K43.1%0
2026-09-03112K330K34.0%1,100
2026-09-0266K305K21.7%0
2026-09-01238K694K34.4%0
2026-08-3192K167K55.3%0

Fails to deliver

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

As of 20 August 2026, the fails-to-deliver balance in AZTA is 7 shares, down 60 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (16 June 2026) to 8,619 shares (26 June 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-08-207$35.62$249
2026-08-1867$33.58$2K
2026-08-12159$33.39$5K
2026-08-112$33.33$67
2026-08-104,762$32.04$153K
2026-08-072$30.74$61
2026-08-062,932$31.82$93K
2026-08-051$30.13$30
2026-08-041$29.88$30
2026-08-0333$28.13$928
2026-07-311,712$28.80$49K
2026-07-301$28.28$28
2026-07-291$28.93$29
2026-07-28536$27.52$15K
2026-07-27327$27.37$9K
2026-07-2329$27.16$788
2026-07-222$26.59$53
2026-07-161,366$26.71$36K
2026-07-14335$26.05$9K
2026-07-094$24.51$98
2026-07-066,425$25.84$166K
2026-06-301,846$25.51$47K
2026-06-295,537$25.50$141K
2026-06-268,619$24.63$212K
2026-06-24328$22.20$7K
2026-06-23222$22.27$5K
2026-06-2298$23.31$2K
2026-06-187,278$22.68$165K
2026-06-161$22.95$23
2026-06-106,872$22.72$156K

Insider trades

SEC Form 4, newest first, 50 of 100 shown. JSON

Insiders at AZTA reported 1 open-market buy worth $8K in the last 90 days and no open-market sells. Latest filing: Madaus Martin D (Interim CEO) on 2026-09-22.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-09-22Madaus Martin DInterim CEOTax withholding1K$34.28$50K43K
2026-09-15Bello Erik J.VP Chief Accounting OfficerGrant5K$0.00$05K
2026-09-14Madaus Martin DInterim CEOGrant37K$0.00$044K
2026-09-14Starr EphraimSVP, Gen Counsel & SecretaryGrant15K$0.00$084K
2026-09-14Lin Lawrence Y.EVP, CFO and TreasurerGrant31K$0.00$0110K
2026-09-14Pirogova OlgaSVP and CHROGrant15K$0.00$047K
2026-09-14MARTIN WILLIAM E. IIIPresident MultiomicsGrant15K$0.00$033K
2026-08-09Pirogova OlgaSVP and CHROTax withholding1K$32.04$35K32K
2026-07-31Starr EphraimSVP, Gen Counsel & SecretaryBuy335$24.17$8K69K
2026-05-18Cornog William LDirectorBuy10K$16.38$164K20K
2026-05-15Starr EphraimSVP, Gen Counsel & SecretaryTax withholding4K$16.02$58K68K
2026-04-28MARTIN WILLIAM E. IIIPresident MultiomicsGrant18K$24.24$431K18K
2026-02-06Nova Tina SusanDirectorGrant6K$27.85$158K16K
2026-02-05Doshi DipalDirectorGrant6K$27.85$158K10K
2026-02-05Casal FrankDirectorGrant7K$27.85$202K22K
2026-02-05McLaughlin EricaDirectorGrant6K$27.85$158K23K
2026-02-05Koffey QuentinDirectorGrant6K$0.00$011K
2025-11-24Marotta JohnPresident and CEOGrant118K$0.00$0213K
2025-11-24Marotta JohnPresident and CEOGrant122K$0.00$0217K
2025-11-24Lin Lawrence Y.EVP, CFO and TreasurerGrant37K$0.00$080K
2025-11-24Pirogova OlgaSVP and CHROGrant16K$0.00$033K
2025-11-24Zhou GingerSVP and GM, MultiomicsGrant13K$0.00$039K
2025-11-24Starr EphraimSVP, Gen Counsel & SecretaryGrant34K$0.00$072K
2025-11-14Zhou GingerSVP and GM, MultiomicsTax withholding1K$29.75$33K26K
2025-11-14Pirogova OlgaSVP and CHROTax withholding2K$29.75$46K17K
2025-11-14Lin Lawrence Y.EVP, CFO and TreasurerTax withholding3K$29.75$90K43K
2025-11-14Marotta JohnPresident and CEOTax withholding11K$29.75$327K95K
2025-09-10Marotta JohnPresident and CEOSell316$29.41$9K106K
2025-08-12Zhou GingerSVP and GM, MultiomicsSell1K$28.54$31K27K
2025-08-12Pirogova OlgaSVP and CHROSell1K$28.54$31K18K
2025-08-12Zhou GingerSVP and GM, MultiomicsDisposition1K$28.54$31K27K
2025-08-12Pirogova OlgaSVP and CHRODisposition1K$28.54$31K18K
2025-08-11Lin Lawrence Y.EVP, CFO and TreasurerBuy3K$27.96$70K46K
2025-06-02Marotta JohnPresident and CEOGrant1K$25.99$26K107K
2025-06-02Marotta JohnPresident and CEOBuy1K$25.99$26K107K
2025-05-30Malus Alan JDirectorGrant12K$26.65$320K17K
2025-05-30Malus Alan JDirectorBuy12K$26.65$320K17K
2025-05-20Cornog William LDirectorGrant3K$27.37$75K22K
2025-05-20Cornog William LDirectorBuy3K$27.37$75K26K
2025-05-19Cornog William LDirectorGrant4K$26.98$112K19K
2025-05-19Cornog William LDirectorBuy4K$26.98$112K23K
2025-05-16Cornog William LDirectorGrant100$26.50$3K15K
2025-05-16Cornog William LDirectorBuy100$26.50$3K19K
2025-05-15Starr EphraimSVP, Gen Counsel & SecretaryGrant38K$26.71$1.0M38K
2025-05-09Marotta JohnPresident and CEOGrant2K$27.84$50K106K
2025-05-09Lin Lawrence Y.EVP, CFO and TreasurerGrant4K$27.49$110K44K
2025-05-09Marotta JohnPresident and CEOGrant2K$27.49$49K106K
2025-05-08Marotta JohnPresident and CEOGrant4K$27.49$100K103K
2025-05-08Lin Lawrence Y.EVP, CFO and TreasurerGrant2K$27.67$55K40K
2025-05-08Marotta JohnPresident and CEOGrant4K$27.49$100K104K

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.

Large holders (13D and 13G)

One row per reporting person with its latest filing, newest first. JSON

1 holder reports 5% or more of AZTA in its latest filing, on Schedule 13G (passive). The holder is Vanguard Portfolio Management at 5.3% of the class (2,466,192 shares), filed 2026-04-28 for an event on 2026-03-31.

FiledFormHolderSharesOf classEvent
2026-04-2813GVanguard Portfolio Managementinvestment adviser2.5M5.3%2026-03-31
2026-03-2613G/Ano. 16The Vanguard Groupinvestment adviser00.0%2026-03-13
2026-01-2113G/Ano. 1Dimensional Fund Advisors LPinvestment adviser2.1M4.6%2025-12-31

13F holders

Tracked managers holding AZTA at their latest 13F. JSON

6 of the 30 tracked managers held AZTA at their latest 13F, $62.9M in total at quarter-end prices. D. E. Shaw & Co. is the largest at $34.2M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 5 added shares and 1 cut.

FundQuarterSharesValueOf portfolioChange in shares
D. E. Shaw & Co.2026-06-301.3M$34.2M0.02%+662K
Citadel Advisors2026-06-30596K$15.2M0.00%+48K
AQR Capital Management2026-06-30293K$7.3M0.00%-33K
Millennium Management2026-06-30163K$4.2M0.00%+98K
Point72 Asset Management2026-06-3067K$1.7M0.00%new
Two Sigma Investments2026-06-3012K$309K0.00%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

Azenta 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 Azenta (AZTA), SEC CIK 933974, listed on Nasdaq, classified by the SEC as special industry machinery, nec. 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 2026-09-30.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-12.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-08-20.JSON and CSV
Large holders
SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-04-28.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 2026-08-04.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 2026-09-22.JSON and CSV
Company record
EDGAR filing index for CIK 933974Ticker, 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 companies the SEC classifies as special industry machinery, nec

Other company pages

Datasets

Frequently Asked Questions

How much of AZTA is sold short?
5,319,092 shares were held short at the 2026-09-30 settlement, 6.1 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 AZTA's daily short volume?
On 2026-10-12, 177,109 of the 269,242 AZTA shares reported to FINRA were sold short, 65.8% of the day's reported volume. Short volume is a flow for one day, not a position.
Does AZTA have fails to deliver?
The SEC's latest file shows 7 AZTA shares failed to deliver at settlement 2026-08-20. Fails are reported per settlement date and published twice a month with a lag.
Are AZTA insiders buying or selling?
Insiders at AZTA reported 1 open-market buy worth $8K in the last 90 days and no open-market sells. Latest filing: Madaus Martin D (Interim CEO) on 2026-09-22.
Who owns 5% or more of AZTA?
1 holder reports 5% or more of AZTA in its latest filing, on Schedule 13G (passive). The holder is Vanguard Portfolio Management at 5.3% of the class (2,466,192 shares), filed 2026-04-28 for an event on 2026-03-31.
Which tracked 13F managers own AZTA?
6 of the 30 tracked 13F managers held AZTA shares at their latest filing, $62.9M in all. The largest: D. E. Shaw & Co. (1.3M shares, $34.2M), Ken Griffin's Citadel Advisors (596K shares, $15.2M), Cliff Asness's AQR Capital Management (293K shares, $7.3M), Izzy Englander's Millennium Management (163K shares, $4.2M), Steve Cohen's Point72 Asset Management (67K shares, $1.7M), Two Sigma Investments (12K shares, $309K).

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