New Positions
9 managers initiated
Top five by reported value
- GOLDMAN SACHS GROUP INC$95.7K
- Squarepoint Ops LLC$89.4K
- BAILARD, INC.$78.7K
- TWO SIGMA SECURITIES, LLC$17.6K
- NINE MASTS CAPITAL Ltd$17.6K
Actinium Pharmaceuticals Inc NYSE MKT LLC:ATNM
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-12-31 · prior 2025-09-30.
9 new14 added37 reduced11 exited
Total Institutional Holders
60
as of 2025-12-31
Top Holder
VANGUARD GROUP INC
$1.9M
Largest QoQ Increase
ACADIAN ASSET MANAGEMENT LLC
+116,762 sh
Largest QoQ Decrease
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
-97,604 sh
New Positions(9)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| GOLDMAN SACHS GROUP INC | 70,358 | +70,358 | $95.7K | +$95.7K | — |
| Squarepoint Ops LLC | 65,730 | +65,730 | $89.4K | +$89.4K | — |
| BAILARD, INC. | 57,867 | +57,867 | $78.7K | +$78.7K | — |
| TWO SIGMA SECURITIES, LLC | 12,965 | +12,965 | $17.6K | +$17.6K | — |
| NINE MASTS CAPITAL Ltd | 12,940 | +12,940 | $17.6K | +$17.6K | — |
| Point72 Asset Management, L.P. | 10,295 | +10,295 | $14.0K | +$14.0K | — |
| Savvy Advisors, Inc. | 10,000 | +10,000 | $13.6K | +$13.6K | — |
| AM INVESTMENT STRATEGIES LLC | 29,356 | +29,356 | $40 | +$40 | — |
| HRT FINANCIAL LP | 13,010 | +13,010 | $17 | +$17 | — |
Added To(14)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| VANGUARD GROUP INC | 1,421,038 | +36,495 | $1.9M | -$282.7K | 2.6% |
| BlackRock, Inc. | 366,931 | +3,445 | $499.0K | -$82.6K | 0.9% |
| GEODE CAPITAL MANAGEMENT, LLC | 328,994 | +575 | $447.6K | -$78.1K | 0.2% |
| RENAISSANCE TECHNOLOGIES LLC | 390,784 | +102,154 | $531.5K | +$69.7K | 35.4% |
| MORGAN STANLEY | 19,070 | +14,351 | $25.9K | +$18.4K | 304.1% |
| JANE STREET GROUP, LLC | 122,892 | +29,870 | $167.1K | +$18.3K | 32.1% |
| ADVISOR GROUP HOLDINGS, INC. | 20,265 | +13,115 | $27.6K | +$15.3K | 183.4% |
| BARCLAYS PLC | 2,508 | +2,504 | $3.5K | +$3.5K | 62600.0% |
| XTX Topco Ltd | 25,976 | +6,015 | $35.3K | +$3.4K | 30.1% |
| Cetera Investment Advisers | 15,259 | +768 | $20.8K | -$2.4K | 5.3% |
| SRS Capital Advisors, Inc. | 707 | +673 | $962 | +$908 | 1979.4% |
| NORTHERN TRUST CORP | 42,610 | +6,715 | $58.0K | +$518 | 18.7% |
| BANK OF AMERICA CORP /DE/ | 649 | +1 | $882 | -$155 | 0.1% |
| ACADIAN ASSET MANAGEMENT LLC | 606,339 | +116,762 | $823 | +$41 | 23.8% |
Reduced(37)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| MILLENNIUM MANAGEMENT LLC | 601,600 | -23,097 | $818.2K | -$181.3K | -3.7% |
| TWO SIGMA INVESTMENTS, LP | 209,692 | -24,601 | $285.2K | -$89.7K | -10.5% |
| GAGNON SECURITIES LLC | 201,807 | -24,450 | $274.5K | -$87.6K | -10.8% |
| CITADEL ADVISORS LLC | 114,700 | -37,015 | $156.0K | -$86.8K | -24.4% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 95,574 | -27,066 | $130.0K | -$66.2K | -22.1% |
| TWO SIGMA ADVISERS, LP | 196,076 | -300 | $266.7K | -$47.5K | -0.1% |
| STATE STREET CORP | 126,215 | 0 | $171.7K | -$30.3K | 0.0% |
| Gen-Wealth Partners Inc | 107,131 | -2,250 | $145.7K | -$29.3K | -2.0% |
| UBS Group AG | 96 | -14,480 | $131 | -$23.2K | -99.3% |
| Qube Research & Technologies Ltd | 18,812 | -6,910 | $25.6K | -$15.6K | -26.9% |
| FMR LLC | 14,373 | -6,727 | $19.5K | -$14.2K | -31.9% |
| Royal Bank of Canada | 80 | -6,864 | $0 | -$10.0K | -98.8% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 40,000 | 0 | $54.4K | -$9.6K | 0.0% |
| DIMENSIONAL FUND ADVISORS LP | 34,923 | 0 | $47.5K | -$8.4K | 0.0% |
| Vontobel Holding Ltd. | 30,000 | 0 | $40.8K | -$7.2K | 0.0% |
| Intrepid Financial Planning Group LLC | 10,500 | -2,000 | $14.3K | -$5.7K | -16.0% |
| Callan Family Office, LLC | 23,603 | 0 | $32.1K | -$5.7K | 0.0% |
| MAYPORT, LLC | 22,000 | 0 | $29.9K | -$5.3K | 0.0% |
| NORTH STAR ASSET MANAGEMENT INC | 20,000 | 0 | $27.2K | -$4.8K | 0.0% |
| WELLS FARGO & COMPANY/MN | 19,800 | 0 | $26.9K | -$4.8K | 0.0% |
| Russell Investments Group, Ltd. | 13,340 | 0 | $18.1K | -$3.2K | 0.0% |
| LEVEL FOUR ADVISORY SERVICES, LLC | 10,000 | 0 | $13.6K | -$2.4K | 0.0% |
| Rockefeller Capital Management L.P. | 4,000 | -500 | $5.4K | -$1.8K | -11.1% |
| CITIGROUP INC | 431 | -854 | $586 | -$1.5K | -66.5% |
| FEDERATED HERMES, INC. | 1,403 | -522 | $1.9K | -$1.2K | -27.1% |
| Steward Partners Investment Advisory, LLC | 2,166 | 0 | $2.9K | -$520 | 0.0% |
| JPMORGAN CHASE & CO | 1,494 | -68 | $2.0K | -$467 | -4.3% |
| NISA INVESTMENT ADVISORS, LLC | 958 | 0 | $1.3K | -$230 | 0.0% |
| NATIONAL BANK OF CANADA /FI/ | 855 | 0 | $1.2K | -$205 | 0.0% |
| SBI Securities Co., Ltd. | 542 | 0 | $737 | -$130 | 0.0% |
| EverSource Wealth Advisors, LLC | 16 | -70 | $22 | -$116 | -81.4% |
| JONES FINANCIAL COMPANIES LLLP | 351 | 0 | $477 | -$88 | 0.0% |
| PITTENGER & ANDERSON INC | 341 | 0 | $464 | -$82 | 0.0% |
| Investors Research Corp | 300 | 0 | $408 | -$72 | 0.0% |
| BNP PARIBAS ARBITRAGE, SNC | 237 | 0 | $322 | -$57 | 0.0% |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | 107 | 0 | $146 | -$25 | 0.0% |
| CWM, LLC | 620 | -775 | $1 | -$1 | -55.5% |
Sold Out(11)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| NEW YORK STATE COMMON RETIREMENT FUND | 0 | -77,255 | $0 | -$411.7K | — |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0 | -97,604 | $0 | -$157.1K | — |
| MARSHALL WACE, LLP | 0 | -26,336 | $0 | -$42.1K | — |
| AQR CAPITAL MANAGEMENT LLC | 0 | -16,805 | $0 | -$26.9K | — |
| Point72 Asia (Singapore) Pte. Ltd. | 0 | -10,295 | $0 | -$16.5K | — |
| Advisory Services Network, LLC | 0 | -2,460 | $0 | -$3.9K | — |
| Tower Research Capital LLC (TRC) | 0 | -555 | $0 | -$888 | — |
| GROUP ONE TRADING, L.P. | 0 | -547 | $0 | -$875 | — |
| Groupe la Francaise | 0 | -316 | $0 | -$436 | — |
| True Wealth Design, LLC | 0 | -2 | $0 | -$4 | — |
| Cubist Systematic Strategies, LLC | 0 | -1 | $0 | -$2 | — |
Top Holders by reported value
Ranked by the dollar value reported on the latest Form 13F. Share counts reflect long positions as of 2025-12-31.
| Manager | Shares | $ Value | Δ Shares | QoQ % |
|---|---|---|---|---|
| VANGUARD GROUP INC | 1,421,038 | $1.9M | +36,495 | 2.6% |
| MILLENNIUM MANAGEMENT LLC | 601,600 | $818.2K | -23,097 | -3.7% |
| RENAISSANCE TECHNOLOGIES LLC | 390,784 | $531.5K | +102,154 | 35.4% |
| BlackRock, Inc. | 366,931 | $499.0K | +3,445 | 0.9% |
| GEODE CAPITAL MANAGEMENT, LLC | 328,994 | $447.6K | +575 | 0.2% |
| TWO SIGMA INVESTMENTS, LP | 209,692 | $285.2K | -24,601 | -10.5% |
| GAGNON SECURITIES LLC | 201,807 | $274.5K | -24,450 | -10.8% |
| TWO SIGMA ADVISERS, LP | 196,076 | $266.7K | -300 | -0.1% |
| STATE STREET CORP | 126,215 | $171.7K | 0 | 0.0% |
| JANE STREET GROUP, LLC | 122,892 | $167.1K | +29,870 | 32.1% |
| CITADEL ADVISORS LLC | 114,700 | $156.0K | -37,015 | -24.4% |
| Gen-Wealth Partners Inc | 107,131 | $145.7K | -2,250 | -2.0% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 95,574 | $130.0K | -27,066 | -22.1% |
| GOLDMAN SACHS GROUP INC | 70,358 | $95.7K | +70,358 | — |
| Squarepoint Ops LLC | 65,730 | $89.4K | +65,730 | — |
| BAILARD, INC. | 57,867 | $78.7K | +57,867 | — |
| NORTHERN TRUST CORP | 42,610 | $58.0K | +6,715 | 18.7% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 40,000 | $54.4K | 0 | 0.0% |
| DIMENSIONAL FUND ADVISORS LP | 34,923 | $47.5K | 0 | 0.0% |
| Vontobel Holding Ltd. | 30,000 | $40.8K | 0 | 0.0% |
New & Closed Positions this quarter
Closed Positions
11 managers exited
Top five by prior-quarter value
Methodology
Form 13F is the SEC's quarterly disclosure for institutional investment managers exercising discretion over $100 million or more in qualifying U.S. equity securities. Managers must file within 45 days of each calendar quarter end, which is why holdings shown here reflect a snapshot at the period date — not real-time positioning.
Quarter-over-quarter deltas compare each manager's most recently reported share count for ATNM against its prior-quarter count. New positions are entries where the prior count was zero; closed positions are entries where the current count is zero. Amendments (13F-HR/A) replace prior filings for the same period.
Source: SEC EDGAR Form 13F (XML information tables). Dollar values are as reported by the manager and may use mid-quarter pricing conventions. CUSIP-to-ticker resolution is best-effort.