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Actinium Pharmaceuticals
ATNM

63 hedge funds and large institutions have $7.66M invested in Actinium Pharmaceuticals in 2025 Q2 according to their latest regulatory filings, with 19 funds opening new positions, 11 increasing their positions, 22 reducing their positions, and 25 closing their positions.

New
Increased
Maintained
Reduced
Closed

9,800% more call options, than puts

Call options by funds: $99K | Put options by funds: $1K

9% less funds holding

Funds holding: 69 → 63 (-6)

8.72% less ownership

Funds ownership: 26.28% → 17.55% (-8.7%)

24% less first-time investments, than exits

New positions opened: 19 | Existing positions closed: 25

42% less capital invested

Capital invested by funds: $13.2M → $7.66M (-$5.53M)

50% less repeat investments, than reductions

Existing positions increased: 11 | Existing positions reduced: 22

Holders
63
Holders Change
-6
Holders Change %
-8.7%
% of All Funds
0.83%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
19
Increased
11
Reduced
22
Closed
25
Calls
$99K
Puts
$1K
Net Calls
+$98K
Net Calls Change
-$21K

Top Buyers

Rank Fund Capital Flow
1
Millennium Management
Millennium Management
New York
+$993K
2
Jane Street
Jane Street
New York
+$327K
3
Renaissance Technologies
Renaissance Technologies
New York
+$227K
4
Marshall Wace
Marshall Wace
United Kingdom
+$147K
5
YIH
Y-Intercept (HK)
Hong Kong
+$97.1K

Top Sellers

Rank Fund Capital Flow
1
BlackRock
BlackRock
New York
-$2.21M
2
State Street
State Street
Massachusetts
-$633K
3
Geode Capital Management
Geode Capital Management
Massachusetts
-$572K
4
UBS Group
UBS Group
Switzerland
-$555K
5
Los Angeles Capital Management
Los Angeles Capital Management
California
-$376K
Name Holding Trade Value Shares
Change 		Change in
Stake
T. Rowe Price Associates
76
T. Rowe Price Associates
Maryland
– -$21K -12,785 Closed
IIM
77
INTECH Investment Management
Florida
– -$19.9K -12,336 Closed
PFS
78
Prospect Financial Services
New York
– -$19.3K -12,000 Closed
PFSRSONJ
79
Police & Firemen's Retirement System of New Jersey
New Jersey
– -$12.7K -7,915 Closed
New York State Common Retirement Fund
80
New York State Common Retirement Fund
New York
– -$10.8K -6,737 Closed
Legal & General Group
81
Legal & General Group
United Kingdom
– -$5.96K -3,713 Closed
Simplex Trading
82
Simplex Trading
Illinois
– -$4.44K -2,966 Closed
California State Teachers Retirement System (CalSTRS)
83
California State Teachers Retirement System (CalSTRS)
California
– -$3.51K -2,178 Closed
AIP
84
Ameritas Investment Partners
Nebraska
– -$3.46K -2,148 Closed
AB
85
Amalgamated Bank
New York
– -$1K -877 Closed
HFM
86
Hartford Financial Management
Connecticut
– -$429 -266 Closed
PNC Financial Services Group
87
PNC Financial Services Group
Pennsylvania
– -$354 -220 Closed
SCM
88
Sterling Capital Management
North Carolina
– -$50 -31 Closed
1 2 3
4

ATNM Hedge Fund Activity: Q2 2025 in Review

63 of the 7,596 institutional investors tracked by Wall St. Rank reported a position in Actinium Pharmaceuticals (ATNM) for Q2 2025, worth a combined $7.66M — down 42% from $13.2M a quarter earlier.

Sellers outnumbered buyers: 25 funds closed out of ATNM and 19 opened new positions — a net loss of 6 holders — while 22 trimmed existing stakes and 11 added.

The largest buyer was Millennium Management, opening a new position worth an estimated $993K. The largest seller was BlackRock, cutting an estimated $2.21M.

  • 63 institutional investors held Actinium Pharmaceuticals (ATNM) as of Q2 2025, down from 69 in Q1 2025.
  • Funds reported $7.66M of Actinium Pharmaceuticals stock for Q2 2025, down 42% quarter-over-quarter.
  • 19 funds opened new Actinium Pharmaceuticals positions in Q2 2025 and 25 closed out, a net change of -6 holders.
  • The largest Actinium Pharmaceuticals buyer in Q2 2025 was Millennium Management, an estimated $993K added.
  • The largest Actinium Pharmaceuticals seller in Q2 2025 was BlackRock, an estimated $2.21M sold.

Based on aggregated 13F filings for Q2 2025.