XOOMAR
Get a free API key

Gulf Coast Ultra Deep Royalty Trust (GULTU)

Gulf Coast Ultra Deep Royalty Trust on one page: short interest, fails to deliver, large holders, earnings dates and insider trades. Listed on OTC, classified by the SEC as crude petroleum & natural gas.

Download CSV

95K

Short interest

settlement 2026-09-30

1.1

Days to cover

+0.1 days vs prior

4,564

Fails to deliver

settlement 2026-06-30

Mon 16 Oct

Last earnings

reported (8-K Item 2.02)

$0

Insider flow, 90 days

0 buys, 0 sells

As of 2026-09-30.

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 GULTU is 94,999 shares, up 1,561 shares over the last month. Over the last 48 readings it ranged from 93,438 shares (31 August 2026) to 240,669 shares (15 January 2026). The latest reading sits at the bottom of that range. At the reported average volume of 85K shares a day that is 1.1 days to cover.

Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/gultu" 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
2026-09-3094,999+1.7%84,6121.12
2026-09-1593,438+0.0%206,6921.00
2026-08-3193,438-20.7%132,1061.00
2026-08-14117,886+25.7%819,9171.00
2026-07-3193,760+0.0%282,9991.00
2026-07-1593,760+0.0%260,6321.00
2026-06-3093,760+0.0%731,2251.00
2026-06-1593,760+0.0%290,9061.00
2026-05-2993,760+0.0%533,0291.00
2026-05-1593,760-43.3%124,5171.00
2026-04-30165,269+76.3%100,9021.64
2026-04-1593,760+0.0%1,602,8661.00
2026-03-3193,761+0.0%1,659,3101.00
2026-03-1393,761+0.0%352,6341.00
2026-02-2793,761+0.0%414,6731.00
2026-02-1393,761+0.0%933,1221.00
2026-01-3093,761-61.0%2,163,6941.00
2026-01-15240,669+107.0%843,9491.00
2025-12-31116,294+24.0%628,6011.00
2025-12-1593,761-20.4%625,0931.00
2025-11-28117,786+23.6%95,7231.23
2025-11-1495,289-3.9%118,7811.00
2025-10-3199,150+2.3%237,6841.00
2025-10-1596,951+3.4%4,853,4611.00

Fails to deliver

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

As of 30 June 2026, the fails-to-deliver balance in GULTU is 4,564 shares, down 58,311 shares over the last settlement date. Over the last 30 readings it ranged from 98 shares (24 October 2025) to 283,084 shares (22 February 2023). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-06-304,564$0.05$228
2026-04-0762,875$0.06$4K
2026-01-2711,490$0.07$804
2026-01-261,490$0.07$104
2026-01-15107,340$0.04$4K
2026-01-14176,909$0.03$5K
2026-01-131,605$0.03$48
2026-01-089,016$0.03$270
2026-01-0620,957$0.03$629
2026-01-05171,017$0.03$5K
2026-01-02136,004$0.03$4K
2025-12-2637,669$0.03$1K
2025-12-2437,769$0.03$1K
2025-12-0215,546$0.03$466
2025-12-0115,546$0.03$466
2025-10-31225$0.03$7
2025-10-30225$0.03$7
2025-10-292,540$0.03$76
2025-10-2816,446$0.03$493
2025-10-276,137$0.03$184
2025-10-2498$0.03$3
2025-01-1426,439$0.03$793
2025-01-1326,439$0.03$793
2024-10-22199$0.01$2
2023-05-1934,187$0.02$684
2023-05-183,464$0.02$69
2023-05-173,437$0.02$69
2023-02-22283,084$0.02$6K
2023-01-2711,282$0.05$564
2022-12-0129,896$0.04$1K

Insider trades

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

No open-market insider trades were reported for GULTU in the last 90 days. The most recent filings are listed below. Latest filing: SUBIN NEIL S (TenPercentOwner) on 2024-11-27.

DateInsiderTitleTypeSharesPriceValueOwned after
2024-11-27SUBIN NEIL STenPercentOwnerSell591K$0.02$12K0
2024-11-27SUBIN NEIL STenPercentOwnerSell591K$0.02$12K0
2024-11-27SUBIN NEIL STenPercentOwnerSell169K$0.02$3K0
2024-11-27SUBIN NEIL STenPercentOwnerSell25.5M$0.02$510K0
2024-11-27SUBIN NEIL STenPercentOwnerSell191K$0.02$4K0
2024-11-27SUBIN NEIL STenPercentOwnerSell1.2M$0.02$24K0
2024-11-27SUBIN NEIL STenPercentOwnerSell191K$0.02$4K0
2024-11-27SUBIN NEIL STenPercentOwnerSell2.7M$0.02$54K0
2024-11-27SUBIN NEIL STenPercentOwnerSell1.7M$0.02$34K0
2024-11-27SUBIN NEIL STenPercentOwnerSell134K$0.02$3K0
2023-05-30Magnolia Oil & Gas CorpTenPercentOwnerSell31.1Mprice not stated in the filingnot stated0
2023-01-27SUBIN NEIL S10% ownerSell311$0.05$16591K
2023-01-27SUBIN NEIL S10% ownerSell101$0.05$5191K
2023-01-27SUBIN NEIL STenPercentOwnerSell311$0.05$16591K
2023-01-27SUBIN NEIL STenPercentOwnerSell71$0.05$4134K
2023-01-27SUBIN NEIL STenPercentOwnerSell904$0.05$451.7M
2023-01-27SUBIN NEIL STenPercentOwnerSell1K$0.05$712.7M
2023-01-27SUBIN NEIL STenPercentOwnerSell101$0.05$5191K
2023-01-27SUBIN NEIL STenPercentOwnerSell13K$0.05$67225.5M
2023-01-27SUBIN NEIL STenPercentOwnerSell623$0.05$311.2M
2023-01-27SUBIN NEIL STenPercentOwnerSell89$0.05$4169K
2022-10-18SUBIN NEIL S10% ownerSell2K$0.05$90591K
2022-10-18SUBIN NEIL STenPercentOwnerSell77K$0.05$4K25.5M
2022-10-18SUBIN NEIL STenPercentOwnerSell8K$0.05$4112.7M
2022-10-18SUBIN NEIL STenPercentOwnerSell5K$0.05$2601.7M
2022-10-18SUBIN NEIL STenPercentOwnerSell4K$0.05$1791.2M
2022-10-18SUBIN NEIL STenPercentOwnerSell580$0.05$29191K
2022-10-18SUBIN NEIL STenPercentOwnerSell581$0.05$29192K
2022-10-18SUBIN NEIL STenPercentOwnerSell2K$0.05$90591K
2022-10-18SUBIN NEIL STenPercentOwnerSell512$0.05$26169K
2022-10-18SUBIN NEIL STenPercentOwnerSell406$0.05$20134K
2022-10-17SUBIN NEIL S10% ownerSell14K$0.05$702593K
2022-10-17SUBIN NEIL STenPercentOwnerSell5K$0.05$227192K
2022-10-17SUBIN NEIL STenPercentOwnerSell4K$0.05$201169K
2022-10-17SUBIN NEIL STenPercentOwnerSell3K$0.05$160135K
2022-10-17SUBIN NEIL STenPercentOwnerSell5K$0.05$228192K
2022-10-17SUBIN NEIL STenPercentOwnerSell14K$0.05$702593K
2022-10-17SUBIN NEIL STenPercentOwnerSell28K$0.05$1K1.2M
2022-10-17SUBIN NEIL STenPercentOwnerSell41K$0.05$2K1.7M
2022-10-17SUBIN NEIL STenPercentOwnerSell64K$0.05$3K2.7M
2022-10-17SUBIN NEIL STenPercentOwnerSell606K$0.05$30K25.6M
2022-09-14SUBIN NEIL STenPercentOwnerSell48K$0.05$2K2.8M
2022-09-14SUBIN NEIL STenPercentOwnerSell30K$0.05$2K1.8M
2022-09-14SUBIN NEIL STenPercentOwnerSell21K$0.05$1K1.2M
2022-09-14SUBIN NEIL STenPercentOwnerSell452K$0.05$23K26.2M
2022-09-14SUBIN NEIL STenPercentOwnerSell2K$0.05$119138K
2022-09-14SUBIN NEIL STenPercentOwnerSell3K$0.05$150173K
2022-09-14SUBIN NEIL STenPercentOwnerSell3K$0.05$170197K
2022-09-14SUBIN NEIL STenPercentOwnerSell3K$0.05$170197K
2022-09-14SUBIN NEIL STenPercentOwnerSell10K$0.05$524607K

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 GULTU in its latest filing, on Schedule 13G (passive). The holder is Galluccio Thomas Gregory at 5.6% of the class (12,930,891 shares), filed 2026-06-02 for an event on 2026-05-28.

FiledFormHolderSharesOf classEvent
2026-06-0213GGalluccio Thomas Gregoryindividual12.9M5.6%2026-05-28

What this page is

Gulf Coast Ultra Deep Royalty Trust 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 Gulf Coast Ultra Deep Royalty Trust (GULTU), SEC CIK 1565146, listed on OTC, classified by the SEC as crude petroleum & natural gas. 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
Fails to deliver
SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-06-30.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 2026-06-02.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 2023-10-16.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 2024-11-27.JSON and CSV
Company record
EDGAR filing index for CIK 1565146Ticker, 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 crude petroleum & natural gas

Datasets

Frequently Asked Questions

How much of GULTU is sold short?
94,999 shares were held short at the 2026-09-30 settlement, 1.1 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 GULTU's daily short volume?
No daily short volume file lists GULTU yet.
Does GULTU have fails to deliver?
The SEC's latest file shows 4,564 GULTU shares failed to deliver at settlement 2026-06-30. Fails are reported per settlement date and published twice a month with a lag.
Are GULTU insiders buying or selling?
No open-market insider trades were reported for GULTU in the last 90 days. The most recent filings are listed below. Latest filing: SUBIN NEIL S (TenPercentOwner) on 2024-11-27.
Who owns 5% or more of GULTU?
1 holder reports 5% or more of GULTU in its latest filing, on Schedule 13G (passive). The holder is Galluccio Thomas Gregory at 5.6% of the class (12,930,891 shares), filed 2026-06-02 for an event on 2026-05-28.

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