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Seer (SEER)

Seer on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as laboratory analytical instruments.

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109K

Short interest

settlement 2026-09-30

1.0

Days to cover

unchanged vs prior

32.5%

Short share of volume

2026-10-09

636

Fails to deliver

settlement 2026-09-11

Thu 5 Nov

Next earnings

estimated date

-$15K

Insider flow, 90 days

0 buys, 1 sells

As of 2026-10-09.

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 SEER is 108,598 shares, down 37,175 shares over the last month. Over the last 48 readings it ranged from 87,329 shares (15 September 2026) to 1,985,195 shares (15 May 2025). The latest reading sits at the bottom of that range. At the reported average volume of 386K shares a day that is 1.0 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-09-30108,598+24.4%385,5291.00
2026-09-1587,329-40.1%157,5321.00
2026-08-31145,773+18.5%168,0901.00
2026-08-14123,029-32.2%309,7511.00
2026-07-31181,477+22.6%1,381,1181.00
2026-07-15148,052+13.5%4,041,0851.00
2026-06-30130,491-31.9%161,6151.00
2026-06-15191,696-34.8%127,1311.51
2026-05-29293,816-35.1%287,2291.02
2026-05-15453,019+5.9%411,8311.10
2026-04-30427,617-1.1%416,4371.03
2026-04-15432,590-41.0%506,7211.00
2026-03-31732,581-5.4%171,7254.27
2026-03-13774,578-14.4%362,6882.14
2026-02-27904,811+42.7%474,3301.91
2026-02-13634,111+126.7%352,1401.80
2026-01-30279,780+9.5%113,4672.47
2026-01-15255,526-8.6%141,1321.81
2025-12-31279,535-82.1%212,7731.31
2025-12-151,563,815+1.2%175,4638.91
2025-11-281,545,228-1.3%165,2729.35
2025-11-141,565,533+0.6%141,65511.05
2025-10-311,556,720-0.3%86,67317.96
2025-10-151,561,238-1.0%89,03617.53

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 9 October 2026, the short share of SEER volume is 32.5%, down 10.5 points over the last five sessions. Over the last 30 readings it ranged from 13.3% (11 September 2026) to 66.2% (28 August 2026). The latest reading is 5.1 points below the 30-session average of 37.6%, on 135K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-10-0944K135K32.5%0
2026-10-0815K91K16.0%0
2026-10-0743K152K28.2%0
2026-10-0613K69K18.1%0
2026-10-05127K381K33.3%0
2026-10-0240K92K43.0%0
2026-10-0122K98K22.3%1,363
2026-09-30114K432K26.3%23,072
2026-09-29184K406K45.3%0
2026-09-28177K459K38.6%0
2026-09-2544K110K40.5%0
2026-09-24138K239K57.5%0
2026-09-2330K60K49.8%0
2026-09-2210K34K29.8%0
2026-09-2127K46K58.4%2
2026-09-1818K37K48.3%0
2026-09-1715K58K25.0%0
2026-09-1645K97K46.6%11,075
2026-09-1527K69K38.8%0
2026-09-1425K86K29.1%0
2026-09-113K21K13.3%0
2026-09-1028K47K58.7%9,284
2026-09-0923K38K61.0%0
2026-09-0840K99K39.9%0
2026-09-0410K27K38.5%0
2026-09-037K31K23.3%0
2026-09-0211K73K15.6%0
2026-09-01104K255K40.8%0
2026-08-3130K68K43.8%0
2026-08-2854K81K66.2%0

Fails to deliver

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

As of 11 September 2026, the fails-to-deliver balance in SEER is 636 shares, up 622 shares over the last settlement date. Over the last 30 readings it ranged from 2 shares (2 March 2026) to 443,525 shares (7 July 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-09-11636$1.93$1K
2026-08-3114$1.98$28
2026-08-2717$2.02$34
2026-08-121,363$2.16$3K
2026-08-066$2.19$13
2026-08-034$2.22$9
2026-07-10118$2.20$260
2026-07-09357$2.18$778
2026-07-08233,659$2.22$519K
2026-07-07443,525$2.19$971K
2026-06-15134$1.72$230
2026-04-2326$1.98$51
2026-04-20723$2.00$1K
2026-04-10694$1.69$1K
2026-04-09790$1.69$1K
2026-03-022$1.72$3
2026-02-253$2.09$6
2026-02-19700$2.02$1K
2026-02-18536$2.05$1K
2026-02-17376$2.02$760
2026-02-13557$1.92$1K
2026-01-20119$1.89$225
2026-01-167,734$1.91$15K
2025-11-242,430$1.97$5K
2025-11-0529,922$2.19$66K
2025-10-232,344$2.15$5K
2025-10-102,295$2.31$5K
2025-10-0385$2.21$188
2025-09-051,907$2.01$4K
2025-08-22748$2.05$2K

Insider trades

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

Insiders at SEER reported 1 open-market sell worth $15K in the last 90 days and no open-market buys. Latest filing: Horn David R. (PRESIDENT & CFO) on 2026-08-18.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-08-18Horn David R.PRESIDENT & CFOSell7K$2.03$15K487K
2026-07-28Roelofs Nicolas H PHDDirectorGrant17K$0.00$091K
2026-07-28Ro IsaacDirectorGrant12K$0.00$053K
2026-07-28Nishar DipchandDirectorGrant17K$0.00$076K
2026-07-28MCGUIRE TERRANCEDirectorGrant17K$0.00$0129K
2026-07-28LANGER ROBERTDirectorGrant17K$0.00$0821K
2026-07-28Gulyani MeetaDirectorGrant17K$0.00$0124K
2026-07-08Nishar DipchandDirectorSell11K$2.18$23K59K
2026-05-20Horn David R.PRESIDENT & CFOSell7K$1.69$12K494K
2026-05-08Bazarko Anthony R.Chief Commercial OfficerGrant75Kprice not stated in the filingnot stated75K
2026-02-18Horn David R.PRESIDENT & CFOSell8K$1.99$15K501K
2026-02-18Farokhzad OmidCEO AND CHAIRSell24K$1.99$49K3.3M
2026-02-03Horn David R.PRESIDENT & CFOGrant79K$0.00$0509K
2026-02-03Farokhzad OmidCEO AND CHAIRGrant697K$0.00$03.4M
2025-12-09Farokhzad OmidCEO AND CHAIRConversion2.1Mprice not stated in the filingnot stated2.1M
2025-12-09Farokhzad OmidCEO AND CHAIRConversion1.4Mprice not stated in the filingnot stated2.7M
2025-12-09MCGUIRE TERRANCEDirectorConversion4Kprice not stated in the filingnot stated215K
2025-11-19Horn David R.PRESIDENT & CFOSell7K$1.97$13K437K
2025-11-19Farokhzad OmidCEO AND CHAIRSell34K$1.97$67K1.2M
2025-09-02Ro IsaacDirectorGrant41K$0.00$041K
2025-08-20Horn David R.PRESIDENT & CFOSell7K$2.04$14K437K
2025-08-20Farokhzad OmidCEO AND CHAIRSell34K$2.04$69K1.3M
2025-07-07Roelofs Nicolas H PHDDirectorGrant17K$0.00$075K
2025-07-07Nishar DipchandDirectorGrant21K$0.00$070K
2025-07-07MCGUIRE TERRANCEDirectorGrant21K$0.00$0112K
2025-07-07LANGER ROBERTDirectorGrant21K$0.00$0805K
2025-07-07Gulyani MeetaDirectorGrant21K$0.00$0108K
2025-06-13Nishar DipchandDirectorSell30K$2.08$63K49K
2025-05-20Farokhzad OmidCEO AND CHAIRSell34K$2.08$70K1.3M
2025-05-20Horn David R.PRESIDENT & CFOSell7K$2.08$14K444K
2025-02-18Farokhzad OmidCEO AND CHAIRTax withholding88K$2.30$204K1.3M
2025-02-18Horn David R.PRESIDENT & CFOTax withholding27K$2.30$61K450K
2025-02-04Farokhzad OmidCEO AND CHAIRSell8K$2.24$18K1.4M
2025-02-04Horn David R.PRESIDENT & CFOSell4K$2.24$8K477K
2024-08-13Roelofs Nicolas H PHDDirectorGrant47K$0.00$058K
2024-06-14Nishar DipchandDirectorSell12K$1.78$22K79K
2024-06-12Gulyani MeetaDirectorGrant58K$0.00$087K
2024-06-12Hallal DavidDirectorGrant58K$0.00$0355K
2024-06-12Haurwitz Rachel E.DirectorGrant58K$0.00$088K
2024-06-12LANGER ROBERTDirectorGrant58K$0.00$0784K
2024-06-12MCGUIRE TERRANCEDirectorGrant58K$0.00$092K
2024-06-12Nishar DipchandDirectorGrant58K$0.00$092K
2024-03-07Farokhzad OmidCEO AND CHAIRSell53K$2.03$107K1.4M
2024-02-22Horn David R.PRESIDENT & CFOSell13K$1.58$20K481K
2024-02-22Kogan ElonaCHIEF LEGAL OFFICERSell13K$1.58$20K273K
2024-02-06Farokhzad OmidCEO AND CHAIRGrant530K$0.00$01.5M
2024-02-06Horn David R.PRESIDENT & CFOGrant165K$0.00$0493K
2024-02-06Kogan ElonaCHIEF LEGAL OFFICERGrant123K$0.00$0286K
2024-02-05Horn David R.President and CFOSell4K$1.67$6K328K
2023-12-04Kogan Elona Esq.Chief Legal OfficerSell8K$1.70$14K163K

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.

Planned sales (Form 144)

Newest first. JSON

1 Form 144 notice on file for SEER worth $23K at the prices reported; 0 in the last 90 days worth $0. Latest: DIPCHAND NISHAR filed on 2026-07-08 to sell 10,660 shares ($23K) from 2026-07-08.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2026-07-08DIPCHAND NISHARDirector11K$23K0.019%2026-07-08Morgan Stanley Smith Barney LLC Executive Financial Services

Large holders (13D and 13G)

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

1 holder reports 5% or more of SEER in its latest filing, on Schedule 13G (passive). The holder is Omid Farokhzad at 12.0% of the class (6,918,732 shares), filed 2026-05-15 for an event on 2026-03-31.

FiledFormHolderSharesOf classEvent
2026-05-1513G/Ano. 5Omid Farokhzadindividual6.9M12.0%2026-03-31
2026-05-0413G/Ano. 4Invus Public Equities, L.P.partnership2.5M4.4%2026-03-31
2026-05-0413G/Ano. 4Invus Public Equities Advisors, LLCother entity2.5M4.4%2026-03-31
2026-05-0413G/Ano. 4Siren, L.L.C.other entity2.5M4.4%2026-03-31
2026-05-0413G/Ano. 4Raymond Debbaneindividual2.5M4.4%2026-03-31
2026-05-0413G/Ano. 4Invus Global Management, LLCother entity2.5M4.4%2026-03-31
2026-04-1313D/Ano. 2Radoff Bradley Louisindividual2.6M4.6%2026-04-12
2026-04-1313D/Ano. 2Torok Michaelindividual1.7M3.0%2026-04-12
2026-04-1313D/Ano. 2JEC II Associates, LLCother entity1.2M2.1%2026-04-12
2026-04-1313D/Ano. 2Radoff Family Foundationcorporation500K0.9%2026-04-12
2026-04-1313D/Ano. 2MOS PTC, LLCother entity215K0.4%2026-04-12
2026-04-1313D/Ano. 2The MOS Trustother entity215K0.4%2026-04-12

13F holders

Tracked managers holding SEER at their latest 13F. JSON

4 of the 30 tracked managers held SEER at their latest 13F, $3.3M in total at quarter-end prices. Renaissance Technologies is the largest at $1.6M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 2 added shares and 2 cut.

FundQuarterSharesValueOf portfolioChange in shares
Renaissance Technologies2026-06-30986K$1.6M0.00%+9K
Citadel Advisors2026-06-30519K$862K0.00%new
Two Sigma Investments2026-06-30492K$817K0.00%-19K
Point72 Asset Management2026-06-3014K$23K0.00%-698

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

Seer 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 Seer (SEER), SEC CIK 1726445, listed on Nasdaq, classified by the SEC as laboratory analytical instruments. 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 2026-10-09.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-11.JSON and CSV
Planned sales
SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-07-08.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 2026-05-15.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 2026-08-11.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 2026-08-18.JSON and CSV
Company record
EDGAR filing index for CIK 1726445Ticker, 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 laboratory analytical instruments

Other company pages

Datasets

Frequently Asked Questions

How much of SEER is sold short?
108,598 shares were held short at the 2026-09-30 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 SEER's daily short volume?
On 2026-10-09, 43,811 of the 134,924 SEER shares reported to FINRA were sold short, 32.5% of the day's reported volume. Short volume is a flow for one day, not a position.
Does SEER have fails to deliver?
The SEC's latest file shows 636 SEER shares failed to deliver at settlement 2026-09-11. Fails are reported per settlement date and published twice a month with a lag.
Are SEER insiders buying or selling?
Insiders at SEER reported 1 open-market sell worth $15K in the last 90 days and no open-market buys. Latest filing: Horn David R. (PRESIDENT & CFO) on 2026-08-18.
Have SEER insiders filed to sell?
1 Form 144 notice on file for SEER worth $23K at the prices reported; 0 in the last 90 days worth $0. Latest: DIPCHAND NISHAR filed on 2026-07-08 to sell 10,660 shares ($23K) from 2026-07-08.
Who owns 5% or more of SEER?
1 holder reports 5% or more of SEER in its latest filing, on Schedule 13G (passive). The holder is Omid Farokhzad at 12.0% of the class (6,918,732 shares), filed 2026-05-15 for an event on 2026-03-31.
Which tracked 13F managers own SEER?
4 of the 30 tracked 13F managers held SEER shares at their latest filing, $3.3M in all. The largest: Renaissance Technologies (986K shares, $1.6M), Ken Griffin's Citadel Advisors (519K shares, $862K), Two Sigma Investments (492K shares, $817K), Steve Cohen's Point72 Asset Management (14K shares, $23K).

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