RNTX · Insider Trading

Rein Therapeutics, Inc. Common Stock

Every open-market purchase and sale reported by RNTX officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
9
most recent
Open-Market Buys
4
code P
Sales
0
code S
Reporting Insiders
4
current holders
RNTX — Recent Form 4 Transactions (latest 2026-05-28)
FiledInsiderRole TypeSharesValue
2026-05-28 Josef H Von Rickenbach Director Buy +47,060 +$49.56K
2026-05-13 James Brian Windsor See Remarks Buy +25,000 +$25.00K
2025-11-18 Travis W. Cocke 10%+ Owner Buy +520,915 +$637.96K
2025-10-28 Voss Value-Oriented Special Situations Fund, LP 10%+ Owner Buy +1,530,250 +$2.12M
2025-07-23 Manuel Aivado Director A +17,500 deriv. —
2025-07-23 Reinhard J. Ambros Director A +17,500 deriv. —
2025-07-23 Josef H Von Rickenbach Director A +17,500 deriv. —
2025-07-23 Alan A Musso Director A +17,500 deriv. —
2025-07-23 William Fairey Director A +17,500 deriv. —
RNTX — Current Insider Holders
InsiderRole Shares HeldValue
Voss Value-Oriented Special Situations Fund, LP 10%+ Owner 729,616 $425.51K
Travis W. Cocke 10%+ Owner 500,000 $291.60K
Josef H Von Rickenbach Director 58,014 $33.83K
James Brian Windsor See Remarks 27,046 $15.77K
RNTX Insider Trading FAQ
Who are the insiders at RNTX?
4 officers, directors and 10%+ beneficial owners currently report holdings in RNTX via SEC Form 4.
Are RNTX insiders buying or selling?
Across the 9 most recent Form 4 filings for RNTX, 4 were open-market purchases (code P) and 0 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is RNTX insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent RNTX filing is dated 2026-05-28.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the RNTX quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.