13F

Stock

GT Biopharma, Inc.

GTBP · held by 41 managers

Reported value

$630.3K

Holders

41

+12 new · −10 exited

Holders’ est. mark

−$111.5K

Price effect on 27 books still in the name

Largest holder

$184.4K

VANGUARD CAPITAL MANAGEMENT LLC

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
VANGUARD CAPITAL MANAGEMENT LLC451.9K$184.4KHeld
GEODE CAPITAL MANAGEMENT, LLC294.5K$120.2K−$7.26KAdded$105K
VANGUARD FIDUCIARY TRUST CO225.9K$92.2KHeld
Arax Advisory Partners93.6K$38.2KNew
Citadel66.2K$27K−$25KCut−$36.4K
SeaCrest Wealth Management, LLC50K$20.4K−$16.2KCut−$16.2K
UBS Group AG46K$18.8K−$1Added$18.8K
TWO SIGMA SECURITIES, LLC31.8K$13K−$4.73KAdded$3.13K
LPL Financial LLC30.4K$12.4K−$4.01KAdded$4.05K
Invst, LLC23.4K$9.55KNew
OSAIC HOLDINGS, INC.21K$8.57K−$764Added$6.99K
Cerity Partners LLC20K$8.17K−$5.66KCut−$3.61K
Integrated Wealth Concepts LLC20K$8.16K−$7.54KCut−$7.54K
Private Wealth Management Group, LLC20K$8.16KNew
MORGAN STANLEY16.6K$6.77K−$6.26KCut−$7.83K
Caitlin John, LLC16.5K$6.73K−$6.22KCut−$6.22K
WELLS FARGO & COMPANY/MN16K$6.54K−$6.05KCut−$6.05K
StoneX Group Inc.14.8K$6.02KNew
Verdence Capital Advisors LLC12K$4.9K−$4.53KCut−$5.31K
Prospera Financial Services Inc12K$4.89K−$4.53KCut−$4.53K
LaSalle St. Investment Advisors, LLC11K$4.49KNew
PARSONS CAPITAL MANAGEMENT INC/RI10.9K$4.45K−$4.11KCut−$4.11K
HBK Sorce Advisory LLC10K$3.75K−$1.64KCut−$1.64K
BlackRock, Inc.8.41K$3.43K−$3.17KCut−$3.17K
Allworth Financial LP4.5K$1.84K−$1Added$1.84K
Newbridge Financial Services Group, Inc.3.75K$1.53K−$1.42KCut−$1.42K
Farther Finance Advisors, LLC3K$1.23K−$1.13KCut−$1.13K
MassMutual Private Wealth & Trust, FSB3K$1.22KNew
West Financial Advisors, LLC2.5K$1.02KNew
Tower Research Capital LLC (TRC)1.7K$693−$641Cut−$643
Triumph Capital Management1.66K$675−$625Cut−$625
Stone House Investment Management, LLC1.25K$510New
Fidelity1K$408New
Hilltop National Bank100$41New
BNP PARIBAS FINANCIAL MARKETS16$7−$6Cut−$6
Virtu Financial LLC14.9K$6New
Coston, McIsaac & Partners17.1K$6−$7Cut−$7
AM INVESTMENT STRATEGIES LLC15K$6−$6Cut−$6
ROYAL BANK OF CANADA126$0New
JPMORGAN CHASE & CO1$0−$1Cut−$1
SBI Securities Co., Ltd.1$0−$1Cut−$1

Who left

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.