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Retension Pharmaceuticals (RTSN) Latest Stock Analysis Report – Oct 15, 2026, 4:00 PM ET

Updated Oct 15, 2026, 4:00 PM ET

What changed since yesterday

RTSN jumps 4.9% to $12.21, 4 up days in a row. Closed at $12.21, +4.90% vs the prior close of $11.64. Day range $11.56–$12.86, opened at $11.56.

Last close$12.21+4.90%
Day range11.56–12.86
Open11.56
Volume131.00K
52-week range9.66–12.86
Avg volume (20d)261.78K

RTSN daily analysis — what happened

A plain-English, data-only note written after every US trading day. Newest first; older days stay archived below.

Oct 15, 2026 — RTSN jumps 4.9% to $12.21, 4 up days in a row
Oct 14, 2026 — RTSN ends flat (+0.1%) to $11.64, 3 up days in a row
Oct 13, 2026 — RTSN rises 2.7% to $11.63
Oct 12, 2026 — RTSN jumps 7.5% to $11.32

RTSN latest news & SEC filings

Every SEC filing by or about RTSN in the last 120 days, explained in plain English. Updated daily, with a same-day refresh for new filings.

Oct 15, 2026 · SCHEDULE 13G — Passive stake (13G)

Passive stake (13G) — an investor reported owning more than 5%

Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.

Source: SEC EDGAR filing 0000935836-26-000533

Oct 14, 2026 · SCHEDULE 13D — Activist-style stake (13D)

Activist-style stake (13D) — an investor reported owning more than 5%

Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.

Source: SEC EDGAR filing 0001213900-26-109425

Oct 13, 2026 · S-8 — Registration of shares for employee stock plans (S-8)

Registration of shares for employee stock plans (S-8)

Source: SEC EDGAR filing 0001213900-26-109109

Oct 13, 2026 · 4 — Insider trade report (Form 4)

Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings

Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.

Source: SEC EDGAR filing 0001213900-26-109160

Oct 13, 2026 · 4 — Insider trade report (Form 4)

Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings

Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.

Source: SEC EDGAR filing 0001213900-26-109159

Oct 13, 2026 · 4 — Insider trade report (Form 4)

Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings

Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.

Source: SEC EDGAR filing 0001213900-26-109158

Oct 13, 2026 · 4 — Insider trade report (Form 4)

Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings

Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).

Source: SEC EDGAR filing 0001213900-26-109157

Oct 13, 2026 · 4 — Insider trade report (Form 4)

Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings

Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.

Source: SEC EDGAR filing 0001213900-26-109156

Oct 13, 2026 · 4 — Insider trade report (Form 4)

Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings

Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.

Source: SEC EDGAR filing 0001213900-26-109155

Oct 13, 2026 · 8-K — Current report

Current report — a filing companies must make within 4 business days of a major event

Source: SEC EDGAR filing 0001213900-26-109024

Oct 9, 2026 · 424B4 — Final prospectus with offering price

Final prospectus with offering price

An offering document: new shares or debt may be sold, which can increase the share count (dilution) or debt load. Size and terms are in the prospectus.

Source: SEC EDGAR filing 0001213900-26-108587

Oct 8, 2026 · EFFECT — EFFECT filing

EFFECT filing

Source: SEC EDGAR filing 9999999995-26-003189

Oct 8, 2026 · S-1MEF — S-1MEF filing

S-1MEF filing

Source: SEC EDGAR filing 0001213900-26-108143

Oct 8, 2026 · CERT — CERT filing

CERT filing

Source: SEC EDGAR filing 0001354457-26-000966

Oct 8, 2026 · 8-A12B — 8-A12B filing

8-A12B filing

Source: SEC EDGAR filing 0001213900-26-107730

Things to know before you trade RTSN

RTSN market data (last 20 sessions)

DateOpenHighLowCloseVolume
Oct 15, 202611.5612.8611.5612.21131.00K
Oct 14, 202611.6312.2511.0011.6477.20K
Oct 13, 202611.8312.5011.4111.63137.60K
Oct 12, 202610.8811.7910.1611.32173.90K
Oct 9, 202610.0011.609.6610.53789.20K

About Retension Pharmaceuticals

Retension Pharmaceuticals (RTSN) is listed on the Nasdaq and classified by the SEC under “Pharmaceutical Preparations”. Its business address is in MCLEAN, VA. State of incorporation: DE. Fiscal year ends December 31. SEC CIK 2002988.

RTSN board of directors & executives

From SEC Form 3/4/5 insider filings made in the last 12 months (date = latest filing).

Directors

NameRoleLatest filing
No Form 3/4/5 filings by this group in the last 12 months.

Executive officers

NameTitleLatest filing
No Form 3/4/5 filings by this group in the last 12 months.

Recent insider buys & sales

DateInsiderTypeSharesPrice
No open-market insider buys or sales reported in the last 12 months.

RTSN financials (annual, from XBRL filings)

Fiscal year endRevenueNet incomeDiluted EPSOperating cash flow
No annual XBRL figures available (foreign filers often report on Form 20-F).

Latest balance sheet: total assets $—, total liabilities $—, cash $—.

RTSN earnings / results-day log

DateFilingClose that day
No 8-K earnings releases in recent filings.

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Information only, not investment advice. BuyMeWhiskey is not a registered investment adviser or broker-dealer; nothing here is a recommendation to buy, sell or hold any security, and there are no price targets. Data comes from SEC EDGAR filings and public end-of-day market data and may be delayed or contain errors. Verify with the company's filings before making decisions. Prices: end-of-day data as of Oct 15, 2026, 4:00 PM ET. Filings: SEC EDGAR. Updated after every US trading day.