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Protagenic Therapeutics, Inc.\new PTIX US Equity

Health Care · CIK 1022899 · FY ends Mar 31
$1.11
+0.20 (+21.98%)
USD · as of 2026-08-28 · marketstack
Returns are measured from 2018-07-25 — the price history has a 184-day gap before it.

Protagenic Therapeutics, Inc.\new (OTC: PTIX), an SEC filer in Pharmaceutical Preparations, closed at $1.11, +22.0%, on 2026-08-28, with a market cap of $2M and a return on equity of -236.1%. Institutional ownership, earnings history and filed financials are on the tabs below.

Short interest· FINRA consolidated · settlement 2026-08-14

6 settlement cycles
Shares short13K
% of shares out0.7%
Days to cover1.1
Δ vs 2026-07-31-0.8%
▲ 13K shares shortline top = 3.5d to cover2026-05-29: 13K short · 3.5d to cover2026-052026-06-15: 13K short · 1.0d to cover2026-062026-06-30: 13K short · 1.6d to cover2026-062026-07-15: 13K short · 1.0d to cover2026-072026-07-31: 13K short · 1.0d to cover2026-072026-08-14: 13K short · 1.1d to cover2026-08

bars = shares short · line = days to cover (own scale)

SettlementShares shortΔ vs priorAvg daily volumeDays to cover
2026-08-1413,058-0.8%11,7771.1
2026-07-3113,165+0.1%18,3471.0
2026-07-1513,156+1.0%31,3421.0
2026-06-3013,021+0.2%7,8731.6
2026-06-1512,9960.0%15,8091.0
2026-05-2912,9960.0%3,6883.5

FINRA Rule 4560 · twice monthly, published ~a week later.

Output of a disclosed model — assumptions may be wrong. Research, not investment advice. See the Disclaimer.