RTSN insider trading — Retension Pharmaceuticals, Inc.
Over the last 90 days, insiders at Retension Pharmaceuticals, Inc. (RTSN) made 2 open-market purchases worth $370K and 0 open-market sales worth $0, making them net buyers by $370K. The largest purchase was by Keller Eric L. (CHIEF EXECUTIVE OFFICER), who bought 20,800 shares for $250K on Oct 13, 2026. 2 different insiders bought shares in this period — a cluster buy, which many investors watch closely.
Updated Oct 16, 2026.
Recent RTSN insider transactions
Every Form 4 filed by Retension Pharmaceuticals, Inc. officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Oct 13, 2026 | Keller Eric L. | CHIEF EXECUTIVE OFFICER | P · Purchase | Direct | 20,800 | $12.00 | $250K | Form 4 |
| Oct 13, 2026 | Keller Eric L. | CHIEF EXECUTIVE OFFICER | C · Conversion | Direct | 41,030 | — | — | Form 4 |
| Oct 13, 2026 | Sweetnam Paul | CHIEF SCIENTIFIC OFFICER | C · Conversion | Direct | 4,026 | — | — | Form 4 |
| Oct 13, 2026 | Sweetnam Paul | CHIEF SCIENTIFIC OFFICER | C · Conversion | Indirect | 2,640 | — | — | Form 4 |
| Oct 13, 2026 | Olds Donald | Director | C · Conversion | Direct | 5,637 | — | — | Form 4 |
| Oct 13, 2026 | Bisson Sabine | CHIEF OPERATING OFFICER | C · Conversion | Direct | 4,115 | — | — | Form 4 |
| Oct 13, 2026 | Berendt Michael J | Director | C · Conversion | Direct | 6,666 | — | — | Form 4 |
| Oct 13, 2026 | Berger Franklin M | Director | C · Conversion | Direct | 12,517 | — | — | Form 4 |
| Oct 13, 2026 | Berger Franklin M | Director | P · Purchase | Indirect | 10,000 | $12.00 | $120K | Form 4 |
RTSN insider trading FAQ
Are insiders buying RTSN stock?
Yes. In the last 90 days, Retension Pharmaceuticals, Inc. insiders made 2 open-market purchases totaling $370K, and no open-market sales. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading RTSN?
Recent buyers: Berger Franklin M, Keller Eric L..
Where does RTSN insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.