PTIX

Protagenic Therapeutics Inc Cross-source read$1.03 3.22%
Health CareCUSIP 74365N301· EOD Sep 8, 2026

Among active 13F managers last quarter, 1 opened and none reduced or exited; the largest holder to move was CoreCap Advisors, LLC (new position). Over the last 180 days, 1 insider bought and none sold, a net +$31K in open-market trades.

Tracked 13F holders
2
3 in Q1 2026 filings
13F value (tracked)
$16K
Smart-money readBullish
Net sellingNet buying
Funds · active managers, latest 13F
1 adding · 0 trimming
Insiders · Form 4 open-market, 180d
1 buying · 0 selling · +$31K
US House · STOCK Act, 180d
0 buying · 0 selling

Funds lean in and no leg opposes.

Price & smart-money activity

$1.03 3.22%5Y -99.1%
$0.15$35.19$70.23$105.26$140.3020212022202320242025202623237
Hover for who · click for detailEnd-of-day closing prices52w $0.13 – $4.37

Who owns PTIX?

2 tracked 13F filers · ranked by shares held

2 tracked 13F filers disclose a position in PTIX as of the latest SEC 13F filings, a combined $16K in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

#FundSharesPosition valueLast moveAs ofHistory
1DRW Securities, LLC42K
$16K
Held
Q2 2026
2CoreCap Advisors, LLC100
$68
New
+100 sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is PTIX being bought or sold by institutions?

Last quarter, 1 fund opened a new position in PTIX, while none reduced or exited. Based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened
1
fund took a first position
Biggest moves · ranked by size of the change, positions above a floor

Funds that own PTIX also own

CompanyCo-held byTheir position there
Vanguard Total Stock MKT ETFVTI1 funds$148.3M
SS SPDR P S&P 500 Growth ETFSPYG1 funds$140.9M
Vanguard Total Bond MarketBND1 funds$102.3M
Vanguard S&P 500 ETFVOO1 funds$93.0M
SS Technology Select SectorXLK1 funds$76.2M
SS SPDR P S&P 500 Value ETFSPYV1 funds$67.6M
Invesco S&P 500 Equal WeightRSP1 funds$60.6M
Invesco QQQ Trust Series 1QQQ1 funds$55.6M
Schwab US Small-Cap ETFSCHA1 funds$46.4M
Goldman Sachs Marketbeta USGSUS1 funds$44.0M
Apple IncAAPL1 funds$41.8M
Nvidia CorpNVDA1 funds$41.7M

Ranked by how many of PTIX's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in PTIX.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$31K
1 insider
Net · 180d
$31K
7 open-market transactions
DateInsiderRoleActionSharesValue
Aug 21, 2026Armen Garo HEXEC. CHAIR & PRINCIPAL OFF, DirectorBuy (P)20K$13K
Aug 20, 2026Armen Garo HEXEC. CHAIR & PRINCIPAL OFF, DirectorBuy (P)17K$10K
Aug 19, 2026Armen Garo HEXEC. CHAIR & PRINCIPAL OFF, DirectorBuy (P)3K$945
Aug 11, 2026Armen Garo HEXEC. CHAIR & PRINCIPAL OFF, DirectorBuy (P)2K$710
Aug 6, 2026Armen Garo HEXEC. CHAIR & PRINCIPAL OFF, DirectorBuy (P)685$151
Aug 5, 2026Armen Garo HEXEC. CHAIR & PRINCIPAL OFF, DirectorBuy (P)5K$1K
Jul 30, 2026Armen Garo HEXEC. CHAIR & PRINCIPAL OFF., DirectorBuy (P)26K$5K
Oct 12, 2023Arrow Alexander K.Chief Financial OfficerBuy (P)8K$6K
May 18, 2022Arrow Alexander K.Chief Financial OfficerBuy (P)8K$6K
May 17, 2022Arrow Alexander K.Chief Financial OfficerBuy (P)23K$16K
Apr 30, 2021Arrow Alexander K.Chief Financial OfficerBuy (P)1K$2K
Apr 29, 2021Arrow Alexander K.Chief Financial OfficerBuy (P)1K$2K

Do institutions, insiders and Congress agree?

Mixed signals

Where institutional funds (13F), corporate insiders (Form 4) and US House members (STOCK Act) are buying or selling the same name in the same window. Green is buying, red is selling.

SEC EDGAR 13F + Form 4 + US House STOCK Act{ }get_ticker_confluence · API & MCP

Signals by source

Insiders and Congress: last 180 days. Funds: latest 13F, top 100 holders incl. passive

SourceBuyingSellingNet
13F funds
Top 100 holders by value, passive included; the hero counts active managers only
00
Insiders
Form 4 open-market
10+$31K
US House
STOCK Act trades
00$0
Sector rotation
PTIX is in Health Care, which smart money is rotating OUT OF
$5.0B

Capital Rotation reports where institutional capital disclosed rotating, as of the latest public SEC 13F filings. It is data, not investment advice, a recommendation, or a prediction. Filings lag about 45 days and cover long US equity positions only. Past disclosed flows do not indicate future prices. Do your own research; consult a licensed advisor.

Institutional ownership over time

3 tracked filers in Q1 2026 filingsstill filing
0611Q2 2025Q3 2025Q4 2025Q1 2026
tracked filers holding their reported valueQ1 2026 filings so far: $28K
Each bar counts tracked filers with a position in that quarter's filings, so the newest bar excludes filers still on an earlier quarter. Arkolith's tracked universe has grown over this window; part of any long-run rise is coverage, not new buyers.

Recent filings

15 most recent

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Connected entities for PTIX

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Ask your agent what changed in PTIX

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/PTIX/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for PTIX.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for PTIX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.