Tourmaline Oil Corp.

DB:08T Stock Report

Market Cap: €15.3b

Tourmaline Oil Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

DB:08T Recent Insider Transactions by Companies or Individuals
DateValueNameEntityRoleSharesMax Price
02 Dec 25Buy€388,834Michael RoseIndividual10,000€39.06
26 Nov 25Buy€191,698Michael RoseIndividual5,000€38.34
17 Nov 25Buy€184,207Michael RoseIndividual5,000€36.84
13 Nov 25Buy€188,232Michael RoseIndividual5,000€37.65
10 Nov 25Buy€185,222Michael RoseIndividual5,000€37.04
07 Nov 25Buy€367,198Michael RoseIndividual10,000€36.72
17 Oct 25Buy€36,012Jill AngevineIndividual1,000€36.01
10 Oct 25Buy€371,361Michael RoseIndividual10,000€37.14
02 Oct 25Buy€184,533Michael RoseIndividual5,000€36.91
30 Sep 25Buy€370,561Michael RoseIndividual10,000€37.06
23 Sep 25Buy€96,792Michael RoseIndividual2,500€38.72
19 Sep 25Buy€189,047Michael RoseIndividual5,000€37.81
08 Sep 25Buy€355,553Michael RoseIndividual10,000€35.56
27 Aug 25Buy€617,531Christopher LeeIndividual17,000€36.33
18 Aug 25Buy€176,558Michael RoseIndividual5,000€35.31
14 Aug 25Buy€178,675Lucy MillerIndividual5,000€35.73
13 Aug 25Buy€355,117Michael RoseIndividual10,000€35.51
12 Aug 25Buy€1,100,399Michael RoseIndividual30,630€35.93
11 Aug 25Buy€36,310Jill AngevineIndividual1,000€36.31
08 Aug 25Buy€4,301,310Michael RoseIndividual119,370€36.03
08 Aug 25Buy€107,905William KirkerIndividual3,000€35.97
05 Aug 25Buy€182,851Michael RoseIndividual5,000€36.57
05 Aug 25Buy€35,969Jill AngevineIndividual1,000€35.97
01 Aug 25Buy€360,046Michael RoseIndividual10,000€36.00
01 Aug 25Buy€364,942Michael RoseIndividual10,000€36.49
01 Aug 25Buy€183,271Brian RobinsonIndividual5,000€36.65
01 Aug 25Buy€126,576Christopher LeeIndividual3,500€36.16
01 Aug 25Buy€72,430James HeardIndividual2,000€36.21
01 Aug 25Buy€36,240Jill AngevineIndividual1,000€36.24
01 Aug 25Buy€11,040Travis ToewsIndividual305€36.20
07 Jul 25Buy€196,469Michael RoseIndividual5,000€39.29
03 Jul 25Buy€199,889Michael RoseIndividual5,000€39.98
25 Jun 25Buy€202,281Michael RoseIndividual5,000€40.46
13 Jun 25Buy€209,948Michael RoseIndividual5,000€41.99
30 May 25Buy€201,060Michael RoseIndividual5,000€40.21
16 May 25Buy€202,060Michael RoseIndividual5,000€40.41
15 May 25Buy€203,175Michael RoseIndividual5,000€40.64
14 May 25Sell€2,324,073William KirkerIndividual56,000€41.50
12 May 25Buy€202,252Rose Foundation, Endowment ArmCompany5,000€40.45
09 May 25Buy€198,420Michael RoseIndividual5,000€39.68
09 May 25Buy€199,996Rose Foundation, Endowment ArmCompany5,000€40.00
14 Mar 25Buy€102,566Michael RoseIndividual2,500€41.03
07 Mar 25Buy€101,321Rose Foundation, Endowment ArmCompany2,500€40.53
07 Mar 25Buy€255,892Travis ToewsIndividual6,200€41.82
06 Feb 25Buy€109,939Rose Foundation, Endowment ArmCompany2,500€43.98
31 Jan 25Buy€44,292Jill AngevineIndividual1,000€44.29
27 Jan 25Buy€111,602Rose Foundation, Endowment ArmCompany2,500€44.64
16 Jan 25Buy€112,089Rose Foundation, Endowment ArmCompany2,500€44.84
07 Jan 25Buy€114,996Michael RoseIndividual2,500€46.00
17 Dec 24Buy€101,013Michael RoseIndividual2,500€40.41
16 Dec 24Buy€103,812Michael RoseIndividual2,500€41.52
12 Dec 24Buy€105,683Michael RoseIndividual2,500€42.27

Insider Trading Volume

Insider Buying: 08T insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of 08T?
Owner TypeNumber of SharesOwnership Percentage
Individual Insiders18,840,6544.87%
Institutions173,711,53944.9%
General Public194,458,52150.2%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 43.27% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
11.1%
Capital Research and Management Company
43,125,792€1.7b0%0.08%
4.09%
Michael Rose
15,817,531€623.4m0.35%no data
4.03%
The Vanguard Group, Inc.
15,582,139€614.2m0.58%0.01%
3.51%
BlackRock, Inc.
13,595,694€535.9m0.59%0.01%
2.83%
1832 Asset Management L.P.
10,967,529€432.3m0%0.63%
2.33%
Canoe Financial LP
9,008,497€355.1m0%4.14%
1.95%
Dimensional Fund Advisors LP
7,530,485€296.8m1.12%0.05%
1.77%
Davis Selected Advisers LP
6,860,686€270.4m-0.19%1.37%
1.69%
EdgePoint Investment Group Inc.
6,530,905€257.4m0%1.33%
1.29%
RBC Global Asset Management Inc.
5,001,872€197.1m0%0.12%
1.19%
TD Asset Management, Inc.
4,588,942€180.9m0%0.13%
0.79%
Leith Wheeler Investment Counsel Ltd.
3,045,593€120.0m0%2.47%
0.73%
CI Global Asset Management
2,807,569€110.7m-3.4%0.23%
0.67%
Geode Capital Management, LLC
2,603,788€102.6m17.1%0.01%
0.67%
FMR LLC
2,578,866€101.6m0.27%0.01%
0.65%
Beutel Goodman & Company Ltd.
2,517,970€99.2m0.07%0.6%
0.6%
BMO Asset Management Corp.
2,324,326€91.6m-4.69%0.04%
0.56%
CIBC Asset Management Inc.
2,171,492€85.6m-3.4%0.16%
0.46%
Mackenzie Financial Corporation
1,799,026€70.9m-12.6%0.08%
0.45%
IG Investment Management, Ltd.
1,731,143€68.2m-15.2%0.17%
0.44%
JP Morgan Asset Management
1,703,672€67.1m-0.16%0.01%
0.39%
AGF Management Limited
1,519,581€59.9m0%0.29%
0.37%
Rose Foundation
1,425,000€56.2m0%96.2%
0.35%
Franklin Resources, Inc.
1,347,444€53.1m-0.77%0.02%
0.33%
Brian Robinson
1,281,246€50.5m0.21%no data

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2025/12/10 05:13
End of Day Share Price 2025/12/10 00:00
Earnings2025/09/30
Annual Earnings2024/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

PackageDataTimeframeExample US Source *
Company Financials10 years
  • Income statement
  • Cash flow statement
  • Balance sheet
Analyst Consensus Estimates+3 years
  • Forecast financials
  • Analyst price targets
Market Prices30 years
  • Stock prices
  • Dividends, Splits and Actions
Ownership10 years
  • Top shareholders
  • Insider trading
Management10 years
  • Leadership team
  • Board of directors
Key Developments10 years
  • Company announcements

* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Tourmaline Oil Corp. is covered by 30 analysts. 7 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

AnalystInstitution
Harshit GuptaAccountability Research Corporation
Patrick O'RourkeATB Capital Markets
Anthony LintonBarclays