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Retension Pharmaceuticals, Inc.

RTSN
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0002002988

In the last 90 days, Retension Pharmaceuticals, Inc. insiders filed 2 open-market purchases and 0 sales; no institution reported holding it in 13F filings for Q2 2026; no superinvestor holds it.

Holders of 5% or more of RTSN

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

Holders of 5% or more of RTSN
HolderLatest formStakeChangeFirst filedLatest filingFiling
B Group, Inc.13G10.00%833.3K sharesNewOct 16, 20261 filingOct 16, 2026SEC
PVG Asset Management Corp13G8.30%1.00M sharesNewOct 16, 20261 filingOct 16, 2026SEC
Lytton Laurence W13G7.40%617.2K sharesNewOct 15, 20261 filingOct 15, 2026SEC
Keller Eric L.13D7.07%598.6K sharesNewOct 14, 20261 filingOct 14, 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

4 Schedule 13D and 13G filings on Retension Pharmaceuticals, Inc., newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on RTSN
Filed (ET)FilerFormStakeChangeEvent dateFiling
Oct 16, 20265:40 PM ETB Group, Inc.and 2 others13G10.00%833.3K sharesNewOct 13, 2026SEC
Oct 16, 20261:57 PM ETPVG Asset Management Corp13G8.30%1.00M sharesNewOct 9, 2026SEC
Oct 15, 20263:03 PM ETLytton Laurence W13G7.40%617.2K sharesNewOct 13, 2026SEC
Oct 14, 20264:05 PM ETKeller Eric L.13D7.07%598.6K sharesNewOct 13, 2026SEC

Form 144: proposed insider sales

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

No Form 144 notices for Retension Pharmaceuticals, Inc. are on file.