James Brian Windsor

CIK 1790933 · View on SEC EDGAR ↗

Insider

First SEC filing: Nov. 2, 2023 · Latest: Nov. 2, 2023

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Insider at

Insider transactions

1 buys (P) 0 sells (S) Net: $25,000 + 4 non-open-market transactions below Avg return of open purchases vs now: -19.5% last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

4 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
April 30, 2026 RNTX P 25,000 $1.00 $25,000 27,046 Direct +1221.90% Acquired -19.5% (price as of 2026-08-19)
Dec. 5, 2024 RNTX P 161 $2.25 $362 161 Indirect — Acquired -64.2% (price as of 2026-08-19)
Dec. 5, 2024 RNTX P 239 $2.24 $535 239 Indirect — Acquired -64.1% (price as of 2026-08-19)
Dec. 15, 2023 RNTX P 225 $3.37 $758 225 Indirect — Acquired -76.1% (price as of 2026-08-19)
Nov. 20, 2023 RNTX P 5,076 $1.97 $10,000 5,122 Direct +11034.78% Acquired -59.1% (price as of 2026-08-19)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date Ticker Security Underlying Exercise price Expiration Shares A/D
May 8, 2026 RNTX Stock Option (Right to Buy) Common Stock (150,000) $1.17 May 8, 2036 150,000 Disposed
Dec. 2, 2024 RNTX Stock Option (right to buy) Common Stock (517,500) $2.85 Dec. 1, 2034 517,500 Acquired
March 5, 2024 RNTX Series X Non-Voting Convertible Preferred Common Stock (2,000) — — 2 Disposed

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 8 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date Ticker Security Shares Ownership
Nov. 2, 2023 RNTX Common Stock 46 Direct
Nov. 2, 2023 RNTX Stock Option (right to buy)→ Common Stock (8,532) 8,532 Direct
Nov. 2, 2023 RNTX Stock Option (right to buy)→ Common Stock (252,652) 252,652 Direct
Nov. 2, 2023 RNTX Stock Option (right to buy)→ Common Stock (34,736) 34,736 Direct
Nov. 2, 2023 RNTX Stock Option (right to buy)→ Common Stock (317,613) 317,613 Direct
Nov. 2, 2023 RNTX Stock Option (right to buy)→ Common Stock (139,900) 139,900 Direct
Nov. 2, 2023 RNTX Stock Option (right to buy)→ Common Stock (170,646) 170,646 Direct
Nov. 2, 2023 RNTX Series X Non-Voting Convertible Preferred Stock→ Common Stock (2,709) 2,709 Direct