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Matternet, Inc.

MTTN
Exchange
OTC
Industry
Aircraft
SEC CIK
0002075109

No open-market purchases or sales by Matternet, Inc. insiders were filed in the last 90 days; no institution reported holding it in 13F filings for Q2 2026; no superinvestor holds it.

Holders of 5% or more of MTTN

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Matternet, Inc., largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of MTTN
HolderLatest formStakeChangeFirst filedLatest filingFiling
Raptopoulos Andreas13D16.10%8.06M sharesNewJun 1, 20261 filingJun 1, 2026SEC
Tompkins Mark N.13G9.90%4.73M shares−65.10 ppfrom 75.00%Nov 14, 20252 filingsJun 1, 2026SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

6 Schedule 13D and 13G filings on Matternet, Inc., newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on MTTN
Filed (ET)FilerFormStakeChangeEvent dateFiling
Aug 18, 20267:05 PM ETJacobs Ian Seth13G/A0.98%475.0K shares+0.28 ppfrom 0.70%Below 5%Jun 30, 2026SEC
Aug 17, 20269:26 PM ETJacobs Ian Seth13G/A0.70%325.0K shares−24.30 ppfrom 25.00%Below 5%Jun 30, 2026SEC
Jun 1, 20269:38 PM ETRaptopoulos Andreas13D16.10%8.06M sharesNewMay 22, 2026SEC
Jun 1, 20267:47 PM ETTompkins Mark N.13G9.90%4.73M shares−65.10 ppfrom 75.00%May 22, 2026SEC
Nov 14, 20253:38 PM ETJacobs Ian Seth13G25.00%2.50M sharesNewSep 30, 2025SEC
Nov 14, 20253:37 PM ETTompkins Mark N.13G75.00%7.50M sharesNewSep 30, 2025SEC

Form 144: proposed insider sales

Notices from officers, directors and other affiliates planning to sell Matternet, Inc. shares.

No Form 144 notices for Matternet, Inc. are on file.