Company · Ownership research

GT Biopharma, Inc. GTBP

CIK 0000109657 · CUSIP 36254L407

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$66.25K 10,239 shares	0.00%	+10.24KNew	SEC filing ↗ Nov 6, 2026	▾
02	PNC FINANCIAL SERVICES GROUP, INC. CIK 713676 · View history	$10.35K 1,600 shares	0.00%	+1.60KNew	SEC filing ↗ Nov 6, 2026	▾
03	Main Street Group, LTD CIK 1965796 · View history	$1.29K 200 shares	0.00%	+200New	SEC filing ↗ Oct 28, 2026	▾
04	NFSG Corp CIK 1879757 · View history	$971.00 150 shares	0.00%	+150New	SEC filing ↗ Oct 15, 2026	▾
05	MassMutual Private Wealth & Trust, FSB CIK 1103653 · View history	$776.00 120 shares	0.00%	+120New	SEC filing ↗ Oct 5, 2026	▾
06	Farther Finance Advisors, LLC CIK 1992825 · View history	$776.00 120 shares	0.00%	+120New	SEC filing ↗ Oct 8, 2026	▾
07	West Financial Advisors, LLC CIK 1843684 · View history	$647.00 100 shares	0.00%	+100New	SEC filing ↗ Oct 22, 2026	▾
08	Triumph Capital Management CIK 1730765 · View history	$427.00 66 shares	0.00%	+66New	SEC filing ↗ Oct 14, 2026	▾
09	Reyes Financial Architecture, Inc. CIK 2047201 · View history	$162.00 25 shares	0.00%	+25New	SEC filing ↗ Oct 22, 2026	▾

Showing 9 / 9 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

12,620

Not deduplicated across managers

Disclosed value

$81.65K

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

GT Biopharma, Inc. · Q3 2026

Take these holdings further.

This page includes 9 of 9 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

Download CSV
Earlier quarters
Advanced screening & filtering
API & AI access

Already have an account?

＋ New accounts get free API credits to explore data beyond ownership filings.

For AI agents & developers

The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 9 of 9 reporting institutions; totals use the complete disclosed data.

Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.

MCP  https://api.akkrudata.ai/mcp

akkru_institutional_holdings
{"action":"holders","cusip":"36254L407","quarter":"2026Q3","type":"positions","page_size":100}

Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.

MCP endpoint: https://api.akkrudata.ai/mcp
API / MCP / CLI documentation: /documents
llms.txt: /llms.txt

Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.