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Protagenic Therapeutics, Inc.

$0.87 +$0.13 (+17.70%)
OTC · 11 Sep 2026 20:00 UTC
Previous Close
$0.87
Day Range
$0.81$0.87
Year Range
$0.13$4.55
Market Cap
1.58M
AVG Volume
14.29K
Trailing/Forward PE
0.3/-
PEG ratio
0
Dividend Yield
-
Next Earnings Date
2026-11-17
Primary Exchange
Other OTCUS
Revenue (USD)
-30K-20K-10K02016201720182019202020212022202320242025
PTIX Revenue (USD) by year
PeriodRevenue (USD)
20250
2024-25.14K
20230
20220
20210
20200
20190
20180
20170
20160
Net Income (USD)
-6M-4M-2M02016201720182019202020212022202320242025
PTIX Net Income (USD) by year
PeriodNet Income (USD)
2025-5.16M
2024-5.53M
2023-5M
2022-3.52M
2021-4.52M
2020-2.64M
2019-1.75M
2018-2.56M
2017-2.26M
2016-2.28M
Operating Income (USD)
-6M-4M-2M02016201720182019202020212022202320242025
PTIX Operating Income (USD) by year
PeriodOperating Income (USD)
2025-5.83M
2024-5.7M
2023-4.53M
2022-3.56M
2021-4.14M
2020-2.64M
2019-2.09M
2018-2.31M
2017-2.37M
2016-2.23M
EBITDA (USD)
-10M-7.5M-5M-2.5M02016201720182019202020212022202320242025
PTIX EBITDA (USD) by year
PeriodEBITDA (USD)
2025-8.01M
2024-5.49M
2023-4.84M
2022-515.24K
2021-4.03M
2020-2.39M
2019-1.39M
2018-2.31M
2017-2.35M
2016-2.26M
Cash Flows (USD)
-6M-4M-2M02016201720182019202020212022202320242025
PTIX Cash Flows (USD) by year
PeriodCash Flows (USD)
2025-4.14M
2024-4.22M
2023-3.85M
2022-2M
2021-2.8M
2020-1.35M
2019-487.99K
2018-1.07M
2017-1.38M
2016-1.14M
EPS (USD)
-300-200-10002016201720182019202020212022202320242025
PTIX EPS (USD) by year
PeriodEPS (USD)
2025-3.45
2024-6.18
2023-1.15
2022-0.82
2021-1.3
2020-1.02
2019-0.7
2018-1.03
2017-0.87
2016-212.15
Expenses (USD)
-2M02M4M6MR&DSG&ACapex2016201720182019202020212022202320242025
PTIX Expenses (USD) by year
PeriodExpenses (USD)
20253.4M
20245.7M
20234.68M
20223.56M
20214.14M
20202.64M
20192.09M
20182.31M
20172.37M
20161.71M
Cash & Debt (USD)
05M10M15MCashLong Term DebtShort Term Debt2016201720182019202020212022202320242025
PTIX Cash & Debt (USD) by year
PeriodCash & Debt (USD)
20252.21M
20241.84M
20234.06M
20227.98M
202110.37M
2020671.09K
2019798.62K
2018612.87K
20171.69M
20163.1M
Debt ratios
-0.500.5120182019202020212022202320242025
PTIX Debt ratios by year
PeriodDebt ratios
2025-0.05
20240.12
20230.34
20220.92
20210.99
2020-0.08
20190.06
20180.08
Margins
0%100%200%300%400%2024
PTIX Margins by year
PeriodMargins
2024350%
Return on Capital
-1000%-500%0%500%1000%1500%2016201720182019202020212022202320242025
PTIX Return on Capital by year
PeriodReturn on Capital
2025109.9%
2024-545.43%
2023-136.34%
2022-50.86%
2021-45.48%
2020229.27%
2019276.07%
20181212.28%
2017-185.34%
2016-91.88%
Shares Outstanding
02M4M6M8M2016201720182019202020212022202320242025
PTIX Shares Outstanding by year
PeriodShares Outstanding
20251.93M
20246.5M
20234.38M
20224.32M
20214.13M
20202.57M
20192.56M
20182.56M
20172.56M
20161.99M
Dividends (USD)
02000000004000000006000000002005
PTIX Dividends (USD) by year
PeriodDividends (USD)
2005479749712.15
Employee Count
01232016201720182019202020212022202320242026
PTIX Employee Count by year
PeriodEmployee Count
20262
20241
20231
20222
20212
20202
20192
20183
20173
20163
Book Value Per Share (USD)
-4-20242016201720182019202020212022202320242025
PTIX Book Value Per Share (USD) by year
PeriodBook Value Per Share (USD)
2025-2.42
20240.16
20230.84
20221.6
20212.41
2020-0.45
2019-0.25
2018-0.08
20170.48
20161.25
Total Assets (USD)
05M10M15M2016201720182019202020212022202320242025
PTIX Total Assets (USD) by year
PeriodTotal Assets (USD)
20252.13M
20241.96M
20234.32M
20228.04M
202111.06M
2020879.25K
2019842.27K
2018696.88K
20171.78M
20163.16M
PE Ratio
0.20.30.40.5med 0.32Aug 26Aug 26Aug 26Sep 26Sep 26
PTIX PE Ratio by year
PeriodPE Ratio
Sep 260.29
Sep 260.35
Aug 260.32
Aug 260.27
Aug 260.48
Free Cash Flow Yield
-1500%-1000%-500%0%med -32.62%Dec 24Apr 25Jul 25Oct 25Feb 26May 26Sep 26
PTIX Free Cash Flow Yield by year
PeriodFree Cash Flow Yield
Sep 26-164.05%
Sep 26-134.83%
Aug 26-145.82%
Aug 26-178.4%
Aug 26-431.21%
Aug 26-691.39%
Jul 26-1188.81%
Jul 26-990.67%
Jul 26-823.02%
Jul 26-823.02%
Jul 26-930.37%
Jun 26-594.4%
Jun 26-521.92%
Jun 26-427.97%
Jun 26-427.97%
May 26-394.08%
May 26-346.25%
May 26-329.21%
May 26-270.87%
May 26-267.48%
Apr 26-264.18%
Apr 26-375.41%
Apr 26-365.79%
Apr 26-403.75%
Mar 26-411.51%
Mar 26-324.22%
Mar 26-436.7%
Mar 26-584.35%
Feb 26-529.06%
Feb 26-584.35%
Feb 26-615.03%
Feb 26-615.03%
Jan 26-516.83%
Jan 26-428.59%
Jan 26-416.97%
Jan 26-395.52%
Jan 26-332.45%
Dec 25-184.97%
Dec 25-206.73%
Dec 25-149.1%
Dec 25-147.31%
Nov 25-115.5%
Nov 25-42.3%
Nov 25-43.13%
Nov 25-42.5%
Oct 25-34.07%
Oct 25-28.61%
Oct 25-27.19%
Oct 25-26.14%
Oct 25-26.61%
Sep 25-22.83%
Sep 25-24.19%
Sep 25-30.42%
Sep 25-31.1%
Aug 25-27.21%
Aug 25-23.1%
Aug 25-33.43%
Aug 25-34.61%
Aug 25-36.01%
Jul 25-30.05%
Jul 25-28.64%
Jul 25-26.54%
Jul 25-28.31%
Jun 25-26.47%
Jun 25-27.51%
Jun 25-29.5%
Jun 25-27.06%
May 25-25.44%
May 25-20.58%
May 25-32.33%
May 25-20.86%
May 25-20.72%
Apr 25-21.27%
Apr 25-19.31%
Apr 25-15.44%
Apr 25-11.95%
Mar 25-32.92%
Mar 25-26.52%
Mar 25-28.1%
Mar 25-22.99%
Feb 25-24.28%
Feb 25-27.87%
Feb 25-27.65%
Feb 25-27.15%
Jan 25-20.06%
Jan 25-16.64%
Jan 25-16.86%
Jan 25-15.43%
Jan 25-14.65%
Dec 24-13.35%
Dec 24-12.34%
Dec 24-14.96%
Dec 24-13.72%
Nov 24-12.55%
Nov 24-11.39%
Nov 24-11.99%
Nov 24-13.83%
Nov 24-13.65%
Oct 24-13.54%
Oct 24-15.14%
Price to Sales
-1500-1000-5000med -463.7May 25Jul 25Aug 25Oct 25Nov 25Jan 26Mar 26
PTIX Price to Sales by year
PeriodPrice to Sales
Mar 26-30.97
Feb 26-34.2
Feb 26-30.97
Feb 26-29.42
Feb 26-29.42
Jan 26-35.01
Jan 26-42.22
Jan 26-43.4
Jan 26-45.75
Jan 26-54.43
Dec 25-97.83
Dec 25-87.53
Dec 25-121.37
Dec 25-122.84
Nov 25-156.67
Nov 25-304.72
Nov 25-298.83
Nov 25-303.25
Oct 25-378.32
Oct 25-450.45
Oct 25-474.01
Oct 25-493.14
Oct 25-484.31
Sep 25-631.52
Sep 25-596.19
Sep 25-474.01
Sep 25-463.7
Aug 25-529.95
Aug 25-624.16
Aug 25-431.32
Aug 25-416.6
Aug 25-400.4
Jul 25-479.89
Jul 25-503.45
Jul 25-543.19
Jul 25-509.34
Jun 25-544.67
Jun 25-524.06
Jun 25-488.73
Jun 25-532.89
May 25-566.75
May 25-700.71
May 25-446.04
May 25-804.02
May 25-809.19
Apr 25-788.51
Apr 25-868.65
Apr 25-1085.82
Apr 25-1403.8
Price to Book
020406080med 21.56Sep 23Jan 24Apr 24Aug 24Nov 24Feb 25Sep 26
PTIX Price to Book by year
PeriodPrice to Book
Sep 260.92
Sep 261.11
Aug 261.03
Aug 260.84
Aug 260.25
May 2519.95
May 2520.08
Apr 2519.57
Apr 2521.56
Apr 2526.95
Apr 2534.84
Mar 2519.58
Mar 2524.31
Mar 2522.94
Mar 2528.04
Feb 2526.55
Feb 2523.13
Feb 2523.31
Feb 2523.75
Jan 2532.14
Jan 2538.73
Jan 2538.23
Jan 2541.78
Jan 2544.02
Dec 2448.31
Dec 2452.22
Dec 2443.08
Dec 2447
Nov 2451.35
Nov 2456.57
Nov 2453.78
Nov 2447.09
Nov 2447.71
Oct 2448.1
Oct 2443
Oct 2440.03
Oct 2449.9
Sep 2448.66
Sep 2444.01
Sep 2462
Sep 2459.26
Aug 2447.6
Aug 2450.96
Aug 2441.65
Aug 2418.34
Aug 2417.91
Jul 2420.42
Jul 2420.42
Jul 2422.54
Jul 2424.83
Jun 2426.35
Jun 2429.12
Jun 2429.99
Jun 2430.57
May 2438.43
May 2445.42
May 2443.67
May 2422.56
May 2421.39
Apr 2423.23
Apr 2421.56
Apr 2424.06
Apr 2426.9
Mar 2425.55
Mar 2422.63
Mar 2416.79
Mar 2416.06
Mar 2414.6
Feb 2412.94
Feb 2414.6
Feb 2414.01
Feb 2414.16
Jan 2413
Jan 2412.7
Jan 2412.27
Jan 2413.87
Dec 2314.46
Dec 2311.55
Dec 2311.09
Dec 2311.98
Dec 2311.17
Nov 2311.83
Nov 2312.41
Nov 238.96
Nov 239.02
Oct 238.85
Oct 2310.08
Oct 239.4
Oct 2312.99
Sep 2320.61
Sep 2320.44
Sep 2319.49
Sep 2319.71
Sep 2320.5
Aug 2321.06
Aug 2321.06
Aug 2317.52
Aug 2316.96
Jul 2320.19
Jul 2319.08
Protagenic Therapeutics, Inc.
PTIX
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News: PTIX

Protagenic Therapeutics Receives FDA Pre-IND Feedback Supporting New IND for PT00114 in Generalized Anxiety Disorder

accessnewswire.com · 20 Aug 2026

Protagenic Therapeutics Receives FDA Pre-IND Feedback Supporting New IND for PT00114 in Generalized Anxiety Disorder

FDA raises no objection to the Company's planned Phase 1 program design, dose-escalation approach, or CMC and nonclinical packages; IND submission remains on track for the fourth quarter of 2026 NEW YORK, NY / ACCESS Newswire / August 20, 2026 / Protagenic Therapeutics, Inc. (OTCQB:PTIX), a clinical-stage biopharmaceutical company developing novel peptide-based treatments for stress-related neuropsychiatric disorders, today announced that it has received written responses from the U.S. Food and Drug Administration (FDA) to its Type B pre-Investigational New Drug (pre-IND) meeting request for PT00114, the Company's leading investigational neuropeptide product candidate, for the treatment of generalized anxiety disorder (GAD). In its written responses, FDA identified no clinical hold issues and raised no objection to the overall design of the Company's planned three-part Phase 1 program, including its dose-escalation approach and safety review governance, and did not identify deficiencies that it indicated would preclude submission of an IND.

Protagenic Therapeutics' Lead Candidate PT00114 Attenuated Chronic Stress Responses in a Well-Established Rodent Model

accessnewswire.com · 30 Jun 2026

Protagenic Therapeutics' Lead Candidate PT00114 Attenuated Chronic Stress Responses in a Well-Established Rodent Model

As published in Behavioural Pharmacology, two days of PT00114 treatment reduced corticosterone levels and attenuated anxiety-like behavior in chronically stressed rats; a known CRF₁ receptor antagonist did not show activity in the same model. NEW YORK, NY / ACCESS Newswire / June 30, 2026 / Protagenic Therapeutics, Inc. (OTCQB:PTIX), a clinical-stage biopharmaceutical company focused on novel neuropeptide therapies for stress-related disorders, today announced the publication of new preclinical data for its lead candidate, PT00114, in the peer-reviewed journal Behavioural Pharmacology.

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