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Mariana Minerals

Hiring activelyClimate · Oil & gas

Mariana Minerals Co.

Mariana Minerals is a software-first, vertically integrated minerals company focused on supplying the minerals critical to modern energy, AI, and defense technologies.

marianaminerals.com · San Francisco, CA

Source Form DCIK 0002123886as of 2026-10-04
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Funding event

The round itself, as filed
Inferred stageSeries C+
Sold of offered$310M of $310M
Filed2026-08-06
Days since filing59
Exemption claimed
Rule 506(b)
First-ever Form D
No
Date of first sale
2026-07-22
Investors

No investors named: Form D does not list them

Exemption is the box the issuer checked, not our judgement.

Officers on the filing

Names and roles as filed; addresses are never stored
  • Turner CaldwellExecutive Officer · Director · Promoter
  • Juan Lozano Van De VenExecutive Officer · Director · Promoter
  • Schuyler (Baker) TilneyExecutive Officer · Director · Promoter
  • Erin Price-WrightDirector
  • Samir KaulDirector
Form D item 3. Related-person addresses stay in the raw filing and appear in no export, API or alert.

Health flags

Three flags, each with the raw inputs behind it · as of 2026-10-03
UndersubscribedNot flagged100% sold2.4 months since first sale
Prior raiseNot flaggedPrior raise not known—
AmendedNot flaggedNo amendmentNo D/A on file

Open roles

On the employer's own careers page · checked 2026-09-23
74

Pre-posting windowNot enough dataShown once this sector and stage have 20 observed lags from filing to first posting.

Roles link to the employer's own page; Noctura shows titles only.

Looking for a role? Role discovery opens when there are enough postings to be honest about it.

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15 rounds in Climate in the 28 days to 2026-10-03, against 15 in the 28 days before.

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