StockData
GULTUOTCCrude Petroleum & Natural Gas

Gulf Coast Ultra Deep Royalty Trust

Last filing: 10-Q on Aug 13, 2026
$0.04−0.00 (-3.19%)

Close on Oct 19, 2026

Market cap
–
P/E (TTM)
–
Dividend yield
–

Ownership

Institutional holdings as of Jun 30, 2026, from 13F filings

Held by institutions
0M
Shares held, 13F filers
Institutional holders
0
0 new, 1 sold out
Net institutional buying
-0M
In Q2 2026
Insider trades, 12 months
0 buys · 0 sales
Open-market trades only

Shares held by institutions

Holders of more than 5%

Latest Schedule 13D (active) or 13G (passive) filed by each holder

HolderShares% of classFilingAs of
Galluccio Thomas Gregory12,930,8915.60%13G (passive)May 28, 2026

Top institutional holders

13F holdings as of Mar 31, 2026

HolderShares% of GULTUValueChange% of portfolio
Nbc Securities, Inc.5,250–$183–0.00%

Institutional buying and selling by quarter

Positions opened, added to, reduced and closed by 13F filers

QuarterHoldersShares heldNew / addedReduced / closedShares boughtShares sold
Q2 202600M0 / 00 / 10M0M
Q1 202610M0 / 00 / 00M0M
Q4 202510M0 / 00 / 00M0M
Q3 202510M1 / 00 / 00M0M
Q4 202411M0 / 00 / 00M0M
Q3 202411M0 / 00 / 00M0M
Q2 202411M0 / 00 / 00M0M
Q1 202411M0 / 00 / 10M0M
Q4 202331M2 / 00 / 00M0M
Q3 202311M0 / 00 / 00M0M
Q2 202311M0 / 00 / 00M0M
Q1 202311M0 / 01 / 00M5M

Top mutual fund and ETF holders

Latest monthly portfolio reports (Form N-PORT)

FundShares% of GULTUValue% of fundAs of
1290 VT GAMCO Mergers & Acquisitions Portfolio550,000–$20.41K0.01%Jun 30, 2026
The Gabelli ABC Fund200,000–$7.42K0.00%Jun 30, 2026
Enterprise Mergers and Acquisitions Fund160,000–$5.94K0.01%Jun 30, 2026

Officers, directors and major owners

People who filed Forms 3, 4 or 5 in the last two years

NameRoleShares ownedLatest filing
Neil S. Subin10% owner0Dec 2, 2024

Insider trades

Common stock transactions reported on Form 4, newest first

InsiderDateTransactionSharesPriceValueShares after
Neil S. Subin
10% owner
Nov 27, 2024Sale−590,891$0.02$11.82K0
Neil S. Subin
10% owner
Nov 27, 2024Sale−590,892$0.02$11.82K0
Neil S. Subin
10% owner
Nov 27, 2024Sale−168,811$0.02$3.38K0
Neil S. Subin
10% owner
Nov 27, 2024Sale−25,498,192$0.02$509.96K0
Neil S. Subin
10% owner
Nov 27, 2024Sale−191,454$0.02$3.83K0
Neil S. Subin
10% owner
Nov 27, 2024Sale−1,181,780$0.02$23.64K0
Neil S. Subin
10% owner
Nov 27, 2024Sale−191,275$0.02$3.83K0
Neil S. Subin
10% owner
Nov 27, 2024Sale−2,711,445$0.02$54.23K0
Neil S. Subin
10% owner
Nov 27, 2024Sale−1,716,375$0.02$34.33K0
Neil S. Subin
10% owner
Nov 27, 2024Sale−134,204$0.02$2.68K0
Oil & Gas Corp Magnolia
10% owner
May 30, 2023Sale−31,143,150––0
Neil S. Subin
10% owner
Jan 27, 2023Sale−311$0.05$16590,891
Neil S. Subin
10% owner
Jan 27, 2023Sale−101$0.05$5191,275
Neil S. Subin
10% owner
Jan 27, 2023Sale−311$0.05$16590,892
Neil S. Subin
10% owner
Jan 27, 2023Sale−71$0.05$4134,204
Neil S. Subin
10% owner
Jan 27, 2023Sale−904$0.05$451,716,375
Neil S. Subin
10% owner
Jan 27, 2023Sale−1,429$0.05$712,711,445
Neil S. Subin
10% owner
Jan 27, 2023Sale−101$0.05$5191,454
Neil S. Subin
10% owner
Jan 27, 2023Sale−13,436$0.05$67225,498,192
Neil S. Subin
10% owner
Jan 27, 2023Sale−623$0.05$311,181,780
Neil S. Subin
10% owner
Jan 27, 2023Sale−89$0.05$4168,811
Neil S. Subin
10% owner
Oct 18, 2022Sale−77,325$0.05$3.87K25,511,628
Neil S. Subin
10% owner
Oct 18, 2022Sale−8,223$0.05$4112,712,874
Neil S. Subin
10% owner
Oct 18, 2022Sale−5,205$0.05$2601,717,279
Neil S. Subin
10% owner
Oct 18, 2022Sale−3,584$0.05$1791,182,403
Neil S. Subin
10% owner
Oct 18, 2022Sale−1,792$0.05$90591,202
Neil S. Subin
10% owner
Oct 18, 2022Sale−580$0.05$29191,376
Neil S. Subin
10% owner
Oct 18, 2022Sale−581$0.05$29191,555
Neil S. Subin
10% owner
Oct 18, 2022Sale−1,792$0.05$90591,203
Neil S. Subin
10% owner
Oct 18, 2022Sale−512$0.05$26168,900
Neil S. Subin
10% owner
Oct 18, 2022Sale−406$0.05$20134,275
Neil S. Subin
10% owner
Oct 17, 2022Sale−4,547$0.05$227191,956
Neil S. Subin
10% owner
Oct 17, 2022Sale−4,013$0.05$201169,412
Neil S. Subin
10% owner
Oct 17, 2022Sale−3,190$0.05$160134,681
Neil S. Subin
10% owner
Oct 17, 2022Sale−4,551$0.05$228192,136
Neil S. Subin
10% owner
Oct 17, 2022Sale−14,046$0.05$702592,994
Neil S. Subin
10% owner
Oct 17, 2022Sale−14,046$0.05$702592,995
Neil S. Subin
10% owner
Oct 17, 2022Sale−28,093$0.05$1.40K1,185,987
Neil S. Subin
10% owner
Oct 17, 2022Sale−40,801$0.05$2.04K1,722,484
Neil S. Subin
10% owner
Oct 17, 2022Sale−64,455$0.05$3.22K2,721,097
Neil S. Subin
10% owner
Oct 17, 2022Sale−606,135$0.05$30.31K25,588,953
Neil S. Subin
10% owner
Sep 14, 2022Sale−48,102$0.05$2.41K2,785,552
Neil S. Subin
10% owner
Sep 14, 2022Sale−30,449$0.05$1.52K1,763,285
Neil S. Subin
10% owner
Sep 14, 2022Sale−20,965$0.05$1.05K1,214,080
Neil S. Subin
10% owner
Sep 14, 2022Sale−452,352$0.05$22.62K26,195,088
Neil S. Subin
10% owner
Sep 14, 2022Sale−2,381$0.05$119137,871
Neil S. Subin
10% owner
Sep 14, 2022Sale−2,995$0.05$150173,425
Neil S. Subin
10% owner
Sep 14, 2022Sale−3,393$0.05$170196,503
Neil S. Subin
10% owner
Sep 14, 2022Sale−3,396$0.05$170196,687
Neil S. Subin
10% owner
Sep 14, 2022Sale−10,484$0.05$524607,040
Neil S. Subin
10% owner
Sep 14, 2022Sale−10,483$0.05$524607,041
Neil S. Subin
10% owner
Sep 13, 2022Sale−470$0.05$24140,252
Neil S. Subin
10% owner
Sep 13, 2022Sale−591$0.05$30176,420
Neil S. Subin
10% owner
Sep 13, 2022Sale−670$0.05$34199,896
Neil S. Subin
10% owner
Sep 13, 2022Sale−670$0.05$34200,083
Neil S. Subin
10% owner
Sep 13, 2022Sale−9,491$0.05$4752,833,654
Neil S. Subin
10% owner
Sep 13, 2022Sale−6,008$0.05$3001,793,734
Neil S. Subin
10% owner
Sep 13, 2022Sale−4,137$0.05$2071,235,045
Neil S. Subin
10% owner
Sep 13, 2022Sale−89,255$0.05$4.46K26,647,440
Neil S. Subin
10% owner
Sep 13, 2022Sale−2,068$0.05$103617,524

Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.