ATNMACTINIUM PHARMACEUTICALS INC

COM · CUSIP 00507W206

Smart Money Ownership

Of the 6 tracked institutions holding ATNM, 2 have a 3-year clone track record — 2 of them beat the S&P. Average holder's clone alpha: +7.1pt. It's a gauge of who owns the name, not just how many.

Jim Simons

Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →

ATNM (ACTINIUM PHARMACEUTICALS INC) Institutional Ownership Summary

Among the 6 tracked institutional investors we monitor, ATNM (ACTINIUM PHARMACEUTICALS INC) is held with a combined value of $3.46M across 2,954,742 shares. The largest holder is VANGUARD GROUP INC with a position worth $1.93M. 3 funds increased their holdings. 2 funds reduced their position.

Total Institutional Value

$3.46M

Total Shares Held

2,954,742

Institutional Holders

This Quarter's Biggest Movers

Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.

Biggest Buyers

RENAISSANCE TECHNOLOGIES LLC+21% shares~$80.5K VANGUARD GROUP INC+3% shares~$49.0K BlackRock, Inc.+1% shares~$4.4K

Biggest Sellers

MILLENNIUM MANAGEMENT LLC−6% shares~$37.1K

13F Institutional Holders

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VANGUARD GROUP INC

0.00% of book+2.6%

$1.93M

MILLENNIUM MANAGEMENT LLC

0.00% of book-6.2%

$561.95K

RENAISSANCE TECHNOLOGIES LLC

#	Fund	Value↓	Shares	Portfolio %	Change
1	VANGUARD GROUP INC	$1.93M	1,421,038	0.00%	+2.6%
2	MILLENNIUM MANAGEMENT LLC	$561.95K	564,600	0.00%	-6.2%
3	RENAISSANCE TECHNOLOGIES LLC	$469.38K	471,600	0.00%	+20.7%
4	BlackRock, Inc.	$369.47K	371,210	0.00%	+1.2%
5	STATE STREET CORP	$125.62K	126,215	0.00%	-
6	FMR LLC	$79	79	0.00%	-99.5%

Frequently Asked Questions

Which institutional investors own the most ATNM stock?

As of the latest SEC 13F filings, VANGUARD GROUP INC is the largest institutional holder of ATNM with a position worth $1.93M, representing 0.00% of their portfolio. In total, 6 institutional investors hold ATNM with a combined value of $3.46M.

What percentage of ATNM is owned by institutional investors?

Institutional investors hold $3.46M worth of ATNM stock across 6 positions. The largest institutional holder is VANGUARD GROUP INC with $1.93M in holdings.

What is a 13F filing and why does it matter for ATNM?

A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For ATNM, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.

Track ATNM institutional moves

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