Rein Therapeutics RNTX Insider Ownership

NASDAQ RNTX
$0.83 -0.04 (-4.06%)
At close: Sep 9, 2026 · 4:00 PM EDT

Insider Holdings by Owner

3.26Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
5.41%
■0% pp QoQ
Shares Held by Insiders
1.43Mn
filed for Sep 2026
■0.00% QoQ
Shares Outstanding
26.36Mn
26,361,386 shares
Direct Holdings
0
Indirect: 1.43Mn
Net Shares Traded (QoQ)
0
no net change in Sep 2026
Insiders Holding Shares
4
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —

Insider Ownership Summary

Quarter ending 30 Sep, 2026

As of September 09, 2026, the three largest insider holders of RNTX are Of Texas/Texas Am Investment Management Co University (TenPercentOwner, 1.75Mn shares), Capital, Lp Voss (TenPercentOwner, 1.43Mn shares), Rickenbach Josef H Von (Director, 62.51K shares).

Form 4 Holdings

Insiders Holding RNTX

Insiders 4
Shares held 3.26Mn
Of outstanding 12.38%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Of Texas/Texas Am Investment Management Co University TenPercentOwner 1,746,549 0 1,746,549 53.5% 17 Jun, 2024
2 Capital, Lp Voss TenPercentOwner 0 1,426,441 1,426,441 43.7% 18 Nov, 2025
3 Rickenbach Josef H Von Director 62,514 0 62,514 1.9% 27 May, 2026
4 James Brian Windsor Director, Officer 27,046 161 27,207 0.8% 12 May, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

684 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
21 May, 2026 Rickenbach Josef H Von Director Acquired P 3,420 $1.04 $3.56K 18,874 Direct
22 May, 2026 Rickenbach Josef H Von Director Acquired P 15,950 $1.05 $16.71K 34,824 Direct
26 May, 2026 Rickenbach Josef H Von Director Acquired P 23,190 $1.06 $24.47K 58,014 Direct
27 May, 2026 Rickenbach Josef H Von Director Acquired P 4,500 $1.07 $4.82K 62,514 Direct
30 Apr, 2026 James Brian Windsor Director, Officer Acquired P 25,000 $1.00 $25.00K 27,046 Direct
08 May, 2026 James Brian Windsor Director, Officer Disposed A 150,000 $0.00 $0 150,000 Direct
14 Nov, 2025 Capital, Lp Voss TenPercentOwner Acquired P 104,183 $1.22 $127.59K 926,441 Indirect
14 Nov, 2025 Capital, Lp Voss TenPercentOwner Acquired P 104,183 $1.22 $127.59K 926,441 Indirect
14 Nov, 2025 Capital, Lp Voss TenPercentOwner Acquired P 104,183 $1.22 $127.59K 926,441 Indirect
24 Oct, 2025 Capital, Lp Voss TenPercentOwner Acquired P 30,176 $1.39 $41.96K 729,616 Indirect
24 Oct, 2025 Capital, Lp Voss TenPercentOwner Acquired P 30,176 $1.39 $41.96K 729,616 Indirect
24 Oct, 2025 Capital, Lp Voss TenPercentOwner Acquired P 30,176 $1.39 $41.96K 729,616 Indirect
27 Oct, 2025 Capital, Lp Voss TenPercentOwner Acquired P 92,642 $1.37 $126.92K 822,258 Indirect
27 Oct, 2025 Capital, Lp Voss TenPercentOwner Acquired P 92,642 $1.37 $126.92K 822,258 Indirect
27 Oct, 2025 Capital, Lp Voss TenPercentOwner Acquired P 92,642 $1.37 $126.92K 822,258 Indirect
27 Oct, 2025 Capital, Lp Voss TenPercentOwner Acquired P 4,840 $1.37 $6.62K 321,608 Indirect
27 Oct, 2025 Capital, Lp Voss TenPercentOwner Acquired P 4,840 $1.37 $6.62K 321,608 Indirect
27 Oct, 2025 Capital, Lp Voss TenPercentOwner Acquired P 4,840 $1.37 $6.62K 321,608 Indirect
28 Oct, 2025 Capital, Lp Voss TenPercentOwner Acquired P 178,392 $1.39 $247.96K 500,000 Indirect
28 Oct, 2025 Capital, Lp Voss TenPercentOwner Acquired P 178,392 $1.39 $247.96K 500,000 Indirect