XOOMAR

West Bancorporation (WTBA)

West Bancorporation 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 state commercial banks.

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369K

Short interest

settlement 2026-09-30

6.8

Days to cover

-1.8 days vs prior

49.9%

Short share of volume

2026-10-23

750

Fails to deliver

settlement 2026-09-17

Thu 28 Jan

Next earnings

estimated date

$0

Insider flow, 90 days

0 buys, 0 sells

As of 2026-10-23.

Short interest

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

As of 30 September 2026, short interest in WTBA is 368,597 shares, down 48,202 shares over the last month. Over the last 48 readings it ranged from 237,997 shares (15 April 2026) to 425,631 shares (15 September 2026). At the reported average volume of 54K shares a day that is 6.8 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-09-30368,597-13.4%54,0166.82
2026-09-15425,631+2.1%49,3828.62
2026-08-31416,799+8.5%58,1837.16
2026-08-14384,218+11.0%91,1694.21
2026-07-31346,009-11.7%51,1126.77
2026-07-15391,696-2.8%57,6346.80
2026-06-30403,104+28.7%117,6983.42
2026-06-15313,291+10.5%54,7775.72
2026-05-29283,450+3.3%35,8627.90
2026-05-15274,396+5.1%33,5858.17
2026-04-30261,154+9.7%63,3034.13
2026-04-15237,997-2.2%30,3637.84
2026-03-31243,283-1.5%39,5206.16
2026-03-13247,056-10.6%38,1016.48
2026-02-27276,449-21.6%43,1356.41
2026-02-13352,853-9.4%54,6696.45
2026-01-30389,662-4.5%29,77513.09
2026-01-15408,199+10.3%29,51113.83
2025-12-31370,145-11.1%34,78210.64
2025-12-15416,426-0.3%36,51811.40
2025-11-28417,517+1.0%31,04513.45
2025-11-14413,524+5.8%29,28214.12
2025-10-31390,699+3.1%41,4909.42
2025-10-15378,773+5.4%40,6089.33
2025-09-30359,484-0.3%57,7486.23
2025-09-15360,420-0.5%21,54316.73
2025-08-29362,264-2.9%24,70614.66
2025-08-15373,020+14.5%42,7178.73
2025-07-31325,821-1.3%33,2949.79
2025-07-15330,080-0.4%22,77014.50
2025-06-30331,329-7.9%39,2368.44
2025-06-13359,878+11.1%27,85712.92
2025-05-30323,868+7.2%25,40512.75
2025-05-15302,202-0.1%35,6588.48
2025-04-30302,381-1.5%30,7869.82
2025-04-15306,871+4.8%31,7529.66
2025-03-31292,870+0.5%25,63411.43
2025-03-14291,559+1.0%22,83112.77
2025-02-28288,577-5.6%27,91810.34
2025-02-14305,692+17.2%31,9379.57
2025-01-31260,889+8.5%35,6647.32
2025-01-15240,361-6.3%23,68610.15
2024-12-31256,461-8.7%30,3348.45
2024-12-13280,944-0.5%21,86312.85
2024-11-29282,218-5.1%22,86512.34
2024-11-15297,501-4.0%36,7418.10
2024-10-31309,950-6.5%30,69110.10
2024-10-15331,657+1.5%17,64918.79

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 23 October 2026, the short share of WTBA volume is 49.9%, down 30.2 points over the last five sessions. Over the last 30 readings it ranged from 36.8% (8 October 2026) to 86.1% (14 October 2026). The latest reading is 13.3 points below the 30-session average of 63.1%, on 15K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-10-237K15K49.9%0
2026-10-228K19K44.2%0
2026-10-2111K19K56.5%0
2026-10-2010K17K60.4%0
2026-10-197K10K65.0%0
2026-10-1611K14K80.1%0
2026-10-159K18K52.3%80
2026-10-1417K19K86.1%0
2026-10-139K15K56.0%0
2026-10-1212K17K74.5%0
2026-10-0911K27K40.7%0
2026-10-085K14K36.8%0
2026-10-077K11K64.0%0
2026-10-069K14K63.4%0
2026-10-0510K17K60.4%0
2026-10-0232K47K69.3%2,500
2026-10-017K12K61.1%0
2026-09-3011K14K75.9%0
2026-09-297K10K65.4%0
2026-09-283K5K64.4%0
2026-09-254K9K50.5%0
2026-09-244K6K62.3%0
2026-09-2311K16K67.1%0
2026-09-226K11K57.0%2
2026-09-2115K21K72.4%0
2026-09-1812K16K78.6%0
2026-09-179K13K73.0%0
2026-09-168K11K71.8%0
2026-09-156K12K54.2%0
2026-09-1410K13K80.5%0

Fails to deliver

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

As of 17 September 2026, the fails-to-deliver balance in WTBA is 750 shares, up 435 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (22 May 2026) to 2,069 shares (31 July 2026).

SettlementShares failedPriceValue
2026-09-17750$29.46$22K
2026-09-14315$29.37$9K
2026-09-11128$29.20$4K
2026-09-083$29.29$88
2026-09-02470$28.08$13K
2026-08-27123$28.30$3K
2026-08-04777$28.25$22K
2026-08-03312$28.05$9K
2026-07-312,069$27.77$57K
2026-07-30876$27.96$24K
2026-07-29283$28.02$8K
2026-07-0974$26.00$2K
2026-07-08309$26.50$8K
2026-07-07378$26.96$10K
2026-06-294$26.97$108
2026-06-2216$24.92$399
2026-06-18271$24.60$7K
2026-06-15300$25.27$8K
2026-06-103$24.52$74
2026-05-221$23.79$24
2026-05-13343$23.32$8K
2026-04-30106$24.01$3K
2026-04-2286$23.64$2K
2026-04-17153$23.60$4K
2026-04-1086$25.43$2K
2026-04-0749$24.33$1K
2026-03-311,081$23.76$26K
2026-03-27236$23.89$6K
2026-03-1855$23.22$1K
2026-03-06193$24.45$5K

Insider trades

SEC Form 4, newest first. JSON

No open-market insider trades were reported for WTBA in the last 90 days. The most recent filings are listed below. Latest filing: Vaughan Therese M (Director) on 2026-04-23.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-04-23Vaughan Therese MDirectorGrant1K$0.00$015K
2026-04-23Sorensen John KevinDirectorGrant1K$0.00$03K
2026-04-23Parson RosemaryDirectorGrant1K$0.00$08K
2026-04-23McMurray Sean PatrickDirectorGrant1K$0.00$049K
2026-04-23GULLING DOUGLAS RDirectorGrant1K$0.00$074K
2026-04-23GAER STEVEN KDirectorGrant1K$0.00$025K
2026-04-23Elming Lisa JDirectorGrant1K$0.00$09K
2026-03-25WINTERBOTTOM BRAD LEXECUTIVE VICE PRESIDENTTax withholding6K$23.71$146K149K
2026-03-25Peters Bradley PExecutive Vice PresidentTax withholding6K$23.71$145K87K
2026-03-25OLAFSON HARLEECHIEF RISK OFFICERTax withholding6K$23.71$150K136K
2026-03-25NELSON DAVID DCEO & PRESIDENTTax withholding7K$23.71$161K117K
2026-03-25FUNK JANE MCFOTax withholding6K$23.71$143K72K
2026-02-23WINTERBOTTOM BRAD LEXECUTIVE VICE PRESIDENTGrant15K$0.00$0155K
2026-02-23Peters Bradley PExecutive Vice PresidentGrant15K$0.00$093K
2026-02-23OLAFSON HARLEECHIEF RISK OFFICERGrant15K$0.00$0143K
2026-02-23NELSON DAVID DCEO & PRESIDENTGrant17K$0.00$0125K
2026-02-23FUNK JANE MCFOGrant15K$0.00$078K
2026-02-17NOYCE JAMESDirectorGift1K$0.00$02K
2025-11-24MILLIGAN GEORGE DDirectorSell10K$21.71$217K53K
2025-11-21MILLIGAN GEORGE DDirectorSell6K$22.00$128K63K
2025-11-11GULLING DOUGLAS RDirectorSell8K$21.75$172K72K
2025-05-06NELSON DAVID DCEO & PRESIDENTGift9K$0.00$0108K
2025-05-06NELSON DAVID DCEO & PRESIDENTGift9K$0.00$0107K
2025-04-24Elming Lisa JDirectorGrant2K$0.00$08K
2025-04-24Parson RosemaryDirectorGrant2K$0.00$07K
2025-04-24MILLIGAN GEORGE DDirectorGrant2K$0.00$069K
2025-04-24GULLING DOUGLAS RDirectorGrant2K$0.00$080K
2025-04-24Vaughan Therese MDirectorGrant2K$0.00$013K
2025-04-24McMurray Sean PatrickDirectorGrant2K$0.00$047K
2025-04-24NOYCE JAMESDirectorGrant2K$0.00$022K
2025-04-24GAER STEVEN KDirectorGrant2K$0.00$024K
2025-03-25FUNK JANE MCFOTax withholding5K$20.02$105K64K
2025-03-25NELSON DAVID DCEO & PRESIDENTTax withholding7K$20.02$143K118K
2025-03-25OLAFSON HARLEECHIEF RISK OFFICERTax withholding7K$20.02$147K128K
2025-03-25Peters Bradley PExecutive Vice PresidentTax withholding6K$20.02$113K79K
2025-03-25WINTERBOTTOM BRAD LEXECUTIVE VICE PRESIDENTTax withholding7K$20.02$140K141K
2025-02-19NELSON DAVID DCEO & PRESIDENTBuy639$22.27$14K125K
2025-02-17FUNK JANE MCFOGrant15K$0.00$069K
2025-02-17Peters Bradley PExecutive Vice PresidentGrant15K$0.00$084K
2025-02-17OLAFSON HARLEECHIEF RISK OFFICERGrant15K$0.00$0136K
2025-02-17WINTERBOTTOM BRAD LEXECUTIVE VICE PRESIDENTGrant15K$0.00$0148K
2025-02-17NELSON DAVID DCEO & PRESIDENTGrant17K$0.00$0124K
2024-11-20NELSON DAVID DCEO & PRESIDENTBuy592$23.79$14K107K
2024-11-15GULLING DOUGLAS RDirectorGift2K$0.00$079K
2024-11-08GULLING DOUGLAS RDirectorSell4K$23.60$85K81K
2024-11-08GULLING DOUGLAS RDirectorSell397$23.72$9K84K
2024-11-04GULLING DOUGLAS RDirectorDiscretionary trade2$21.39$4385K
2024-08-21NELSON DAVID DCEO & PRESIDENTBuy730$19.04$14K107K
2024-08-19DONOVAN PATRICK JDirectorReturned to company2K$0.00$05K
2024-05-22NELSON DAVID DCEO & PRESIDENTBuy768$17.87$14K106K
2024-04-26GAER STEVEN KDirectorGrant2K$0.00$022K
2024-04-26Worth Philip JasonDirectorGrant2K$0.00$020K
2024-04-26Elming Lisa JDirectorGrant2K$0.00$06K
2024-04-26McMurray Sean PatrickDirectorGrant2K$0.00$045K
2024-04-26SCHULER STEVEN TDirectorGrant2K$0.00$016K
2024-04-26MILLIGAN GEORGE DDirectorGrant2K$0.00$067K
2024-04-26Parson RosemaryDirectorGrant2K$0.00$05K
2024-04-26NOYCE JAMESDirectorGrant2K$0.00$020K
2024-04-26DONOVAN PATRICK JDirectorGrant2K$0.00$07K
2024-04-26Vaughan Therese MDirectorGrant2K$0.00$011K
2024-04-02NELSON DAVID DCEO & PRESIDENTGift10K$0.00$098K
2024-04-02NELSON DAVID DCEO & PRESIDENTGift10K$0.00$0105K
2024-03-25NELSON DAVID DCEO & PRESIDENTTax withholding8K$17.10$141K115K
2024-03-25Peters Bradley PExecutive Vice PresidentTax withholding3K$17.10$49K69K
2024-03-25GULLING DOUGLAS RDirectorTax withholding9K$17.10$146K57K
2024-03-25FUNK JANE MCFOTax withholding3K$17.10$43K54K
2024-03-25WINTERBOTTOM BRAD LEXECUTIVE VICE PRESIDENTTax withholding8K$17.10$140K133K
2024-03-25OLAFSON HARLEECHIEF RISK OFFICERTax withholding8K$17.10$140K121K
2024-02-21NELSON DAVID DCEO & PRESIDENTBuy1K$17.55$22K88K
2024-02-21NELSON DAVID DCEO & PRESIDENTBuy770$17.55$14K123K
2024-02-19OLAFSON HARLEECHIEF RISK OFFICERGrant15K$0.00$0129K
2024-02-19WINTERBOTTOM BRAD LEXECUTIVE VICE PRESIDENTGrant15K$0.00$0141K
2024-02-19NELSON DAVID DCEO & PRESIDENTGrant17K$0.00$0123K
2024-02-19Peters Bradley PExecutive Vice PresidentGrant15K$0.00$072K
2024-02-19FUNK JANE MSVP / ControllerGrant15K$0.00$056K
2024-02-19GULLING DOUGLAS RDirectorGrant2K$0.00$066K
2023-11-22NELSON DAVID DCEO & PRESIDENTBuy1K$18.22$21K87K
2023-11-22NELSON DAVID DCEO & PRESIDENTBuy731$18.22$13K106K
2023-08-23NELSON DAVID DCEO & PRESIDENTBuy1K$18.66$21K86K
2023-08-23NELSON DAVID DCEO & PRESIDENTBuy705$18.66$13K105K
2023-05-24NELSON DAVID DCEO & PRESIDENTBuy1K$17.23$21K85K
2023-05-24NELSON DAVID DCEO & PRESIDENTBuy753$17.23$13K104K
2023-05-18Peters Bradley PExecutive Vice PresidentBuy1K$16.42$16K57K
2023-05-17McMurray Sean PatrickDirectorBuy5K$16.10$81K43K
2023-05-16NELSON DAVID DCEO & PRESIDENTBuy1K$15.72$16K83K
2023-05-08MILLIGAN GEORGE DDirectorBuy5K$16.00$80K65K
2023-04-27DONOVAN PATRICK JDirectorGrant2K$0.00$05K
2023-04-27Elming Lisa JDirectorGrant2K$0.00$04K
2023-04-27GAER STEVEN KDirectorGrant2K$0.00$020K
2023-04-27McMurray Sean PatrickDirectorGrant2K$0.00$038K
2023-04-27MILLIGAN GEORGE DDirectorGrant2K$0.00$060K
2023-04-27NOYCE JAMESDirectorGrant2K$0.00$018K
2023-04-27Parson RosemaryDirectorGrant2K$0.00$03K
2023-04-27SCHULER STEVEN TDirectorGrant2K$0.00$014K
2023-04-27Vaughan Therese MDirectorGrant2K$0.00$09K
2023-04-27Worth Philip JasonDirectorGrant2K$0.00$018K
2023-04-20NELSON DAVID DCEO & PRESIDENTGift7K$0.00$0103K
2023-04-20NELSON DAVID DCEO & PRESIDENTGift7K$0.00$082K
2023-03-25FUNK JANE MCFOTax withholding2K$18.80$38K41K
2023-03-25GULLING DOUGLAS RDirectorTax withholding6K$18.80$107K64K

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

2 Form 144 notices on file for WTBA worth $301K at the prices reported; 0 in the last 90 days worth $0. Latest: MILLIGAN GEORGE D filed on 2025-12-05 to sell 5,826 shares ($128K) from 2025-11-21.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2025-12-05MILLIGAN GEORGE DDirector6K$128K0.034%2025-11-21D.M. KELLY & COMPANY
2025-11-12GULLING DOUGLAS ROfficer8K$173K0.047%2025-11-11Charles Schwab Corp

Large holders (13D and 13G)

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

No holder on file reports 5% or more of WTBA in its latest filing.

FiledFormHolderSharesOf classEvent
2026-03-2713G/Ano. 1The Vanguard Groupinvestment adviser00.0%2026-03-13

13F holders

Tracked managers holding WTBA at their latest 13F. JSON

6 of the 30 tracked managers held WTBA at their latest 13F, $13.2M in total at quarter-end prices. Renaissance Technologies is the largest at $4.6M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 5 added shares and 1 cut.

FundQuarterSharesValueOf portfolioChange in shares
Renaissance Technologies2026-06-30172K$4.6M0.01%-11K
Two Sigma Investments2026-06-30135K$3.6M0.00%+49K
Citadel Advisors2026-06-30108K$2.9M0.00%+38K
AQR Capital Management2026-06-3046K$1.2M0.00%+18K
Millennium Management2026-06-3027K$720K0.00%+16K
D. E. Shaw & Co.2026-06-308K$216K0.00%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

West Bancorporation 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 West Bancorporation (WTBA), SEC CIK 1166928, listed on Nasdaq, classified by the SEC as state commercial banks. 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 2026-10-23.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-17.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 2025-12-05.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 2026-03-27.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 2026-07-23.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 2026-04-23.JSON and CSV
Company record
EDGAR filing index for CIK 1166928Ticker, 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.

Datasets

Frequently Asked Questions

How much of WTBA is sold short?
368,597 shares were held short at the 2026-09-30 settlement, 6.8 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 WTBA's daily short volume?
On 2026-10-23, 7,488 of the 15,020 WTBA shares reported to FINRA were sold short, 49.9% of the day's reported volume. Short volume is a flow for one day, not a position.
Does WTBA have fails to deliver?
The SEC's latest file shows 750 WTBA shares failed to deliver at settlement 2026-09-17. Fails are reported per settlement date and published twice a month with a lag.
Are WTBA insiders buying or selling?
No open-market insider trades were reported for WTBA in the last 90 days. The most recent filings are listed below. Latest filing: Vaughan Therese M (Director) on 2026-04-23.
Have WTBA insiders filed to sell?
2 Form 144 notices on file for WTBA worth $301K at the prices reported; 0 in the last 90 days worth $0. Latest: MILLIGAN GEORGE D filed on 2025-12-05 to sell 5,826 shares ($128K) from 2025-11-21.
Who owns 5% or more of WTBA?
No holder on file reports 5% or more of WTBA in its latest filing.
Which tracked 13F managers own WTBA?
6 of the 30 tracked 13F managers held WTBA shares at their latest filing, $13.2M in all. The largest: Renaissance Technologies (172K shares, $4.6M), Two Sigma Investments (135K shares, $3.6M), Ken Griffin's Citadel Advisors (108K shares, $2.9M), Cliff Asness's AQR Capital Management (46K shares, $1.2M), Izzy Englander's Millennium Management (27K shares, $720K), D. E. Shaw & Co. (8K shares, $216K).

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