Actinium Pharmaceuticals, Inc.: which funds bought and sold

Institutions that bought and sold Actinium Pharmaceuticals 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, 10 institutions that filed 13F reports for both quarters added to or opened positions in Actinium Pharmaceuticals, and 32 cut or closed them. Together they sold a net 610K shares, −11.5% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 285K shares (−14.0%); index fund managers were net sellers of 13K shares (−0.5%). 4 opened a new position and 12 sold out entirely.

Bought, Q2 2026 10 institutions, 4 of them new holders Sold, Q2 2026 32 institutions, 12 of them sold out

Net change, all compared −610K shares (−11.5%)

Net change, active managers −285K shares (−14.0%), 1 bought, 6 sold

Buyers versus sellers

institutions compared, 56

10 bought 14 32 sold

Active managers and hedge funds 1 bought · 6 sold · −285K

Index fund managers 2 bought · 4 sold · −13K

Other institutions 7 bought · 22 sold · −313K

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Bluespring Wealth Management, LLC	+43K New position	43K	$42,140
Qube Research & Technologies Ltd Hedge fund	+40K +220.3%	58K	$56,656
Blackrock, Inc. Index funds	+25K +6.7%	396K	$387,978
Vontobel Holding Ltd.	+20K +66.7%	50K	$49,000
Northwestern Mutual Wealth Management Co	+1,550 +1448.6%	1,657	$1,624
Vanguard Fiduciary Trust Co Index funds	+1,261 +0.8%	162K	$158,295
Jones Financial Companies LLLP	+1,000 +284.9%	1,351	$1,337
Harbour Investments, Inc.	+334 New position	334	$327
Barclays PLC	+203 New position	203	$199
Axiom Investment Management LLC	+5 New position	5	$5

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Qube Research & Technologies Ltd Hedge fund	+40K +220.3%	58K	$56,656

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Acadian Asset Management LLC Active manager	−105K −17.4%	496K	$485,000
Renaissance Technologies LLC Hedge fund	−91K −19.3%	380K	$372,881
Two Sigma Investments, LP Hedge fund	−78K −23.1%	259K	$253,995
Goldman Sachs Group Inc	−70K Sold out	0	—
Susquehanna International Group, LLP	−67K −54.2%	57K	$55,685
Millennium Management LLC Hedge fund	−50K −8.9%	515K	$504,288
Two Sigma Securities, LLC	−36K Sold out	0	—
Nine Masts Capital Ltd	−35K Sold out	0	—
Dimensional Fund Advisors LP	−35K Sold out	0	—
Jane Street Group, LLC	−34K Sold out	0	—
Gagnon Securities LLC	−19K −9.5%	182K	$178,499
Vanguard Capital Management LLC Index funds	−17K −1.4%	1.2M	$1.2M
Xtx Topco Ltd	−16K −54.5%	14K	$13,456
Virtu Financial LLC	−12K Sold out	0	—
Callan Family Office, LLC	−12K Sold out	0	—
Geode Capital Management, LLC Index funds	−11K −3.3%	325K	$318,553
Intrepid Financial Planning Group LLC	−11K Sold out	0	—
Level Four Advisory Services, LLC	−10K Sold out	0	—
UBS Group AG	−7,860 −53.8%	6,758	$6,623
Morgan Stanley	−7,256 −53.4%	6,341	$6,214

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Acadian Asset Management LLC Active manager	−105K −17.4%	496K	$485,000
Renaissance Technologies LLC Hedge fund	−91K −19.3%	380K	$372,881
Two Sigma Investments, LP Hedge fund	−78K −23.1%	259K	$253,995
Millennium Management LLC Hedge fund	−50K −8.9%	515K	$504,288
Federated Hermes, Inc. Active manager	−1,266 −90.2%	137	$134
FMR LLC Active manager	−79 Sold out	0	—

New positions

largest by value

Institution	Shares	Value June 30, 2026
Bluespring Wealth Management, LLC	43K	$42,140
Harbour Investments, Inc.	334	$327
Barclays PLC	203	$199
Axiom Investment Management LLC	5	$5

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Goldman Sachs Group Inc	70K	$69,911
Two Sigma Securities, LLC	36K	$35,718
Nine Masts Capital Ltd	35K	$35,061
Dimensional Fund Advisors LP	35K	$34,759
Jane Street Group, LLC	34K	$34,137
Virtu Financial LLC	12K	$12,000
Callan Family Office, LLC	12K	$11,888
Intrepid Financial Planning Group LLC	11K	$10,451
Level Four Advisory Services, LLC	10K	$9,953
Advisory Services Network, LLC	1,460	$1,453

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 46
Ten largest holders: 86.1%
Index fund managers: 43.7%
Active managers and hedge funds: 33.0%

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	1	6	0	1	−285K	−14.0%
Index fund managers	2	4	0	0	−13K	−0.5%
Other institutions	7	22	4	11	−313K	−33.2%

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 Actinium Pharmaceuticals.

Only managers that filed a holdings report for both quarters are compared (56 here). 3 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.

← Back to Actinium Pharmaceuticals, Inc. · Insiders · Politicians