Mantel

QuietClimate · Carbon & env

Mantel

mantelcapture.com · Cambridge, MA

Source Form DCIK 0001945473as of 2026-10-03

Funding event

The round itself, as filed
Inferred stageSeries A
Sold of offered$18.3M of $25.0M
Filed2026-08-24
Days since filing40
Exemption claimed
Rule 506(b)
First-ever Form D
No
Date of first sale
2026-07-10
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
  • Cameron HallidayExecutive Officer · Director
  • Michael KearneyDirector
  • Hector MacQuarrieDirector
  • Hoosiweng OwDirector
  • Danielle RapsonDirector
  • Dan LeffDirector
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 flagged73.3% sold2.8 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 2026-09-21
0

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

No open roles foundWe read careers pages daily.

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 2026-10-02, against 15 in the 28 days before.

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