GT Biopharma, Inc.: which funds bought and sold

Institutions that bought and sold GT Biopharma shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 29 institutions that filed 13F reports for both quarters added to or opened positions in GT Biopharma, and 13 cut or closed them. Together they added a net 444K shares, +27.5% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 67K shares (−100.0%); index fund managers were net sellers of 28K shares (−2.8%). 21 opened a new position and 5 sold out entirely.

Bought, Q2 2026 29 institutions, 21 of them new holders Sold, Q2 2026 13 institutions, 5 of them sold out

Net change, all compared +444K shares (+27.5%)

Net change, active managers −67K shares (−100.0%), 0 bought, 2 sold

Buyers versus sellers

institutions compared, 60

29 bought 18 13 sold

Active managers and hedge funds 0 bought · 2 sold · −67K

Index fund managers 1 bought · 3 sold · −28K

Other institutions 28 bought · 8 sold · +539K

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
HRT Financial LP	+107K New position	107K	$52,000
Everhart Financial Group, Inc.	+100K New position	100K	$48,970
Opal Wealth Advisors, LLC	+82K New position	82K	$40,063
Northern Trust Corp Index funds	+75K New position	75K	$36,953
49 Wealth Management, LLC	+64K New position	64K	$31,341
Cetera Investment Advisers	+56K New position	56K	$27,392
Kitching Partners, LLC	+50K New position	50K	$24,485
PNC Financial Services Group, Inc.	+40K New position	40K	$19,600
Integrated Wealth Concepts LLC	+20K +100.0%	40K	$19,594
Corient Private Wealth LP	+20K New position	20K	$9,794
Sagespring Wealth Partners, LLC	+20K New position	20K	$9,794
Osaic Holdings, Inc.	+18K +83.3%	39K	$18,857
Tempus Wealth Planning, LLC	+15K New position	15K	$7,346
Mayflower Financial Advisors, LLC	+11K New position	11K	$5,387
Koss-Olinger Consulting, LLC	+10K New position	10K	$4,897
North Star Asset Management Inc	+10K New position	10K	$4,896
Stonex Group Inc.	+8,502 +57.6%	23K	$8,667
Royal Bank Of Canada	+7,600 New position	7,600	$4,000
LPL Financial LLC	+5,997 +19.7%	36K	$17,815
Morgan Stanley	+5,974 +36.0%	23K	$11,054

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
None of the active managers on our list.

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Vanguard Capital Management LLC Index funds	−75K −16.7%	376K	$184,436
Citadel Advisors LLC Hedge fund	−66K Sold out	0	—
UBS Group AG	−46K −100.0%	2	$1
Geode Capital Management, LLC Index funds	−28K −9.4%	267K	$130,648
Invst, LLC	−23K Sold out	0	—
Cerity Partners LLC	−20K Sold out	0	—
Two Sigma Securities, LLC	−18K −57.9%	13K	$6,555
Virtu Financial LLC	−15K Sold out	0	—
FMR LLC Active manager	−1,000 Sold out	0	—
Blackrock, Inc. Index funds	−96 −1.1%	8,312	$4,070
Wells Fargo & Company	−51 −0.3%	16K	$7,828
BNP Paribas Financial Markets	−10 −62.5%	6	$3
Tower Research Capital LLC (TRC)	−2 −0.1%	1,696	$831

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Citadel Advisors LLC Hedge fund	−66K Sold out	0	—
FMR LLC Active manager	−1,000 Sold out	0	—

New positions

largest by value

Institution	Shares	Value June 30, 2026
HRT Financial LP	107K	$52,000
Everhart Financial Group, Inc.	100K	$48,970
Opal Wealth Advisors, LLC	82K	$40,063
Northern Trust CorpIndex funds	75K	$36,953
49 Wealth Management, LLC	64K	$31,341
Cetera Investment Advisers	56K	$27,392
Kitching Partners, LLC	50K	$24,485
PNC Financial Services Group, Inc.	40K	$19,600
Corient Private Wealth LP	20K	$9,794
Sagespring Wealth Partners, LLC	20K	$9,794

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Citadel Advisors LLCHedge fund	66K	$27,002
Invst, LLC	23K	$9,550
Cerity Partners LLC	20K	$8,171
Virtu Financial LLC	15K	$6,000
FMR LLCActive manager	1,000	$408

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 57
Ten largest holders: 68.6%
Index fund managers: 44.9%
Active managers and hedge funds: 0.0%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	0	2	0	2	−67K	−100.0%
Index fund managers	1	3	1	0	−28K	−2.8%
Other institutions	28	8	20	3	+539K	+95.3%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on GT Biopharma.

Only managers that filed a holdings report for both quarters are compared (60 here). 2 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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