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AgomAb Therapeutics (AGMB)

AgomAb Therapeutics on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders and insider trades. Listed on Nasdaq.

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1.0M

Short interest

settlement 2026-09-30

7.1

Days to cover

+2.5 days vs prior

74.1%

Short share of volume

2026-10-22

1,074

Fails to deliver

settlement 2026-09-23

3 people

Insiders buying, 30 days

$400K combined, latest 2026-10-21

$400K

Insider flow, 90 days

10 buys, 0 sells

As of 2026-10-22.

Short interest

FINRA, twice a month. The newest 16 settlements in the table, 16 in the chart. JSON

As of 30 September 2026, short interest in AGMB is 1,001,145 shares, up 122,773 shares over the last month. Over the last 16 readings it ranged from 118,033 shares (13 February 2026) to 1,242,788 shares (30 June 2026). At the reported average volume of 141K shares a day that is 7.1 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-09-301,001,145+15.4%140,6787.12
2026-09-15867,701-1.2%188,4714.60
2026-08-31878,372-6.7%129,7856.77
2026-08-14941,121-21.9%121,5637.74
2026-07-311,204,962-3.0%64,34518.73
2026-07-151,241,839-0.1%85,32714.55
2026-06-301,242,788+16.2%142,1818.74
2026-06-151,069,484+35.2%116,8079.16
2026-05-29791,046+2.6%42,92518.43
2026-05-15771,266+2.1%85,3629.04
2026-04-30755,022+74.3%172,0214.39
2026-04-15433,265+68.5%209,8442.06
2026-03-31257,073+54.3%197,1801.30
2026-03-13166,639-15.8%83,7041.99
2026-02-27197,864+67.6%126,0301.57
2026-02-13118,033+100.0%366,3511.00

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 22 October 2026, the short share of AGMB volume is 74.1%, up 7.9 points over the last five sessions. Over the last 30 readings it ranged from 11.2% (18 September 2026) to 83.1% (21 October 2026). The latest reading is 18.5 points above the 30-session average of 55.6%, on 17K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-10-2213K17K74.1%0
2026-10-2114K16K83.1%0
2026-10-209K15K59.3%0
2026-10-198K15K51.4%0
2026-10-1616K30K53.1%0
2026-10-1525K37K66.3%0
2026-10-1414K21K64.4%0
2026-10-1316K22K71.8%0
2026-10-1210K18K57.5%0
2026-10-0925K36K68.5%17
2026-10-0840K71K56.3%0
2026-10-0726K41K64.4%0
2026-10-0624K47K49.9%0
2026-10-0530K53K56.2%0
2026-10-0261K91K66.7%4,421
2026-10-01105K264K39.7%10,437
2026-09-3016K32K52.0%0
2026-09-2914K22K62.4%0
2026-09-2819K30K61.9%0
2026-09-2527K42K64.7%0
2026-09-2415K29K51.0%100
2026-09-2324K46K53.5%0
2026-09-2214K23K60.3%0
2026-09-2115K38K39.8%0
2026-09-1819K167K11.2%0
2026-09-1743K193K22.4%0
2026-09-1616K41K39.9%0
2026-09-1532K50K63.3%0
2026-09-1417K34K50.5%0
2026-09-1144K82K53.5%0

Fails to deliver

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

As of 23 September 2026, the fails-to-deliver balance in AGMB is 1,074 shares, down 983 shares over the last settlement date. Over the last 30 readings it ranged from 4 shares (14 July 2026) to 23,666 shares (30 June 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-09-231,074$11.49$12K
2026-09-222,057$11.70$24K
2026-09-213,451$12.17$42K
2026-09-171,829$11.41$21K
2026-09-04943$14.83$14K
2026-08-281,004$13.84$14K
2026-08-2123,440$13.43$315K
2026-08-06214$14.32$3K
2026-07-29905$12.54$11K
2026-07-281,063$12.51$13K
2026-07-27977$12.51$12K
2026-07-241,653$12.97$21K
2026-07-23469$11.60$5K
2026-07-21437$11.98$5K
2026-07-20245$12.04$3K
2026-07-16447$12.63$6K
2026-07-1528$12.04$337
2026-07-144$12.31$49
2026-07-13114$13.08$1K
2026-07-10100$13.03$1K
2026-07-09385$12.74$5K
2026-07-0820$13.28$266
2026-07-07209$13.52$3K
2026-07-063,031$12.65$38K
2026-07-021,100$11.87$13K
2026-06-3023,666$17.82$422K
2026-06-292,357$13.81$33K
2026-06-26510$13.43$7K
2026-06-253,743$12.68$47K
2026-06-231,154$11.84$14K

Insider trades

SEC Form 4, newest first. JSON

Insiders at AGMB reported 10 open-market buys worth $400K in the last 90 days and no open-market sells. Latest filing: Epstein David R (Director) on 2026-10-21.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-10-21Epstein David RDirectorBuy5K$8.90$45K25K
2026-10-21Epstein David RDirectorBuy5K$8.86$44K20K
2026-10-08Epstein David RDirectorBuy5K$8.90$45K15K
2026-10-06Kemula Pierre Thadee VictorChief Financial OfficerBuy2K$8.54$17K10K
2026-10-06Kemula Pierre Thadee VictorChief Financial OfficerBuy5K$8.57$43K8K
2026-10-06Kemula Pierre Thadee VictorChief Financial OfficerBuy3K$8.67$26K3K
2026-10-06Epstein David RDirectorBuy5K$8.70$44K10K
2026-10-06Knotnerus Tim JasperChief Executive OfficerBuy5K$8.70$44K22K
2026-10-05Epstein David RDirectorBuy5K$8.57$43K5K
2026-10-05Knotnerus Tim JasperChief Executive OfficerBuy6K$8.48$51K17K

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

14 holders report 5% or more of AGMB in their latest filing, 2 on Schedule 13D (active intent). The largest reported stake is LSP 7 Cooperatieve U.A. at 10.6% of the class (5,141,992 shares), filed 2026-02-17 for an event on 2026-02-09.

FiledFormHolderSharesOf classEvent
2026-05-1513GCormorant Asset Management, LPinvestment adviser, partnership2.5M5.0%2026-03-31
2026-05-1513GBihua Chenparent holding company, individual2.5M5.0%2026-03-31
2026-05-1513GRedmile Biopharma Investments III, L.P.partnership2.7M5.6%2026-03-31
2026-05-1513GJeremy C. Greenparent holding company, individual2.7M5.6%2026-03-31
2026-05-1513GRedmile Group, LLCinvestment adviser, other entity2.7M5.6%2026-03-31
2026-05-0613GSANOFIcorporation2.8M5.7%2026-03-31
2026-04-1613GRan Nussbaumindividual3.3M6.8%2026-03-31
2026-04-1613GTomer Karivindividual3.3M6.8%2026-03-31
2026-04-1613GPontifax Management 4 G.P. (2015) Ltd.corporation3.3M6.8%2026-03-31
2026-04-1613GPontifax VI G.P. L.P.partnership3.3M6.8%2026-03-31
2026-03-0613GFMR LLCparent holding company4.9M10.0%2026-02-27
2026-03-0613GAbigail P. Johnsonindividual4.9M10.0%2026-02-27
2026-02-1713DLSP 7 Cooperatieve U.A.other entity5.1M10.6%2026-02-09
2026-02-1713DLSP 7 Management B.V.other entity5.1M10.6%2026-02-09

13F holders

Tracked managers holding AGMB at their latest 13F. JSON

1 of the 30 tracked managers held AGMB at their latest 13F, $235K in total at quarter-end prices. Two Sigma Investments is the largest at $235K (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 1 added shares and 0 cut.

FundQuarterSharesValueOf portfolioChange in shares
Two Sigma Investments2026-06-3018K$235K0.00%+4K

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

AgomAb Therapeutics 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 AgomAb Therapeutics (AGMB), SEC CIK 2020932, 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 2026-09-30.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-22.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-23.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
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 2026-10-21.JSON and CSV
Company record
EDGAR filing index for CIK 2020932Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits
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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 AGMB is sold short?
1,001,145 shares were held short at the 2026-09-30 settlement, 7.1 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 AGMB's daily short volume?
On 2026-10-22, 12,819 of the 17,295 AGMB shares reported to FINRA were sold short, 74.1% of the day's reported volume. Short volume is a flow for one day, not a position.
Does AGMB have fails to deliver?
The SEC's latest file shows 1,074 AGMB shares failed to deliver at settlement 2026-09-23. Fails are reported per settlement date and published twice a month with a lag.
Are AGMB insiders buying or selling?
Insiders at AGMB reported 10 open-market buys worth $400K in the last 90 days and no open-market sells. Latest filing: Epstein David R (Director) on 2026-10-21.
Who owns 5% or more of AGMB?
14 holders report 5% or more of AGMB in their latest filing, 2 on Schedule 13D (active intent). The largest reported stake is LSP 7 Cooperatieve U.A. at 10.6% of the class (5,141,992 shares), filed 2026-02-17 for an event on 2026-02-09.
Which tracked 13F managers own AGMB?
1 of the 30 tracked 13F managers held AGMB shares at their latest filing, $235K in all. The largest: Two Sigma Investments (18K shares, $235K).

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