Security record · archived quarter
CATX
Perspective Therapeutics, Inc. · Healthcare · Medical - Devices
65Tracked holders
+7Δ holders
36.59MShares held
$152.45MReported value
+14New positions
−7Exits
Momentum inputs (comparable managers):
holder breadth +12.1% ·
share flow +30.0% ·
net new positions +10.8%
· formula
Broad accumulation: rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 1 | 0 | 200 | $544 | n/a | n/a |
| Q2 2026 | 58 | -4 | 46.70M | $159.34M | +6 | −11 |
| Q1 2026 | 65 | +7 | 36.59M | $152.45M | +14 | −7 |
| Q4 2025 | 58 | +1 | 24.82M | $68.26M | +2 | −1 |
| Q3 2025 | 14 | 0 | 27.71M | $95.03M | +1 | −1 |
| Q2 2025 | 11 | 0 | 24.99M | $85.98M | +1 | −1 |
| Q1 2025 | 8 | -1 | 4.80M | $10.23M | +1 | −2 |
| Q4 2024 | 9 | +2 | 5.35M | $17.08M | +3 | −1 |
| Q3 2024 | 6 | -2 | 3.54M | $47.23M | +1 | −3 |
| Q2 2024 | 8 | n/a | 3.80M | $37.75M | n/a | n/a |
Who holds it · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 5.35M | +17.3% | $22.30M | 0.0% | ▲ Add | 4 | SEC ↗ ×9 |
| 2 | Vanguard Capital Management Llc | 4.38M | n/a | $18.26M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | Millennium Management ✦ | 4.05M | +187.7% | $16.87M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 4 | Citadel Advisors ✦ | 3.57M | +1218.5% | $14.87M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 5 | State Street Global Advisors ✦ (passive) | 3.13M | +174.5% | $13.06M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 6 | Balyasny Asset Management L.P. | 2.99M | New | $12.49M | 0.0% | New | 1 | SEC ↗ |
| 7 | Morgan Stanley ✦ | 2.98M | -33.3% | $12.44M | 0.0% | ▼ Trim | 3 | SEC ↗ ×6 |
| 8 | Geode Capital Management ✦ (passive) | 1.77M | +24.9% | $7.37M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 9 | Goldman Sachs Group ✦ | 1.24M | +676.9% | $5.18M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 10 | Two Sigma Investments ✦ | 1.00M | -16.3% | $4.18M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 11 | Nuveen, LLC | 910.22K | -28.6% | $3.80M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 12 | Charles Schwab Investment… | 661.32K | +23.5% | $2.76M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 13 | Northern Trust Corp | 528.93K | +20.4% | $2.21M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 14 | UBS Group AG | 520.90K | -43.8% | $2.17M | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 15 | Dimensional Fund Advisors Lp | 450.10K | +391.6% | $1.88M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 16 | Fidelity (FMR) ✦ | 313.66K | +2.1% | $1.31M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 17 | Bank Of America Corp /De/ | 241.92K | -43.0% | $1.01M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 18 | Invesco Ltd. | 231.35K | +852.9% | $964,750 | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 19 | Federated Hermes, Inc. | 222.14K | +3.9% | $926,332 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 20 | Citigroup Inc | 212.13K | +182.7% | $884,586 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 21 | Susquehanna International Group, Llp | 186.63K | +129.2% | $778,247 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 22 | Bank of New York Mellon Corp | 185.34K | -1.7% | $772,845 | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 23 | Squarepoint Ops LLC | 169.15K | New | $705,343 | 0.0% | New | 1 | SEC ↗ |
| 24 | Wellington Management ✦ | 168.22K | New | $701,489 | 0.0% | New | 1 | SEC ↗ ×3 |
| 25 | State Of Wisconsin Investment Board | 119.11K | New | $496,705 | 0.0% | New | 1 | SEC ↗ |
| 26 | Voya Investment Management Llc | 115.49K | +981.9% | $481,589 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 27 | Rhumbline Advisers | 77.09K | +0.7% | $321,456 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 28 | Creative Planning | 71.46K | +76.8% | $298,005 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 29 | Quantinno Capital Management LP | 65.49K | New | $273,110 | 0.0% | New | 1 | SEC ↗ |
| 30 | Corient Private Wealth LP | 61.86K | New | $257,974 | 0.0% | New | 1 | SEC ↗ |
| 31 | Alliancebernstein L.P. | 83.47K | 0.0% | $229,543 | 0.0% | Held | 2 | SEC ↗ |
| 32 | Deutsche Bank Ag\ | 53.16K | -2.0% | $221,690 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 33 | Simplex Trading, Llc | 42.49K | New | $177,166 | 0.0% | New | 1 | SEC ↗ |
| 34 | T. Rowe Price ✦ | 42.28K | +42.0% | $177,000 | 0.0% | ▲ Add | 8 | SEC ↗ |
| 35 | American Century Companies Inc | 35.72K | +184.2% | $148,961 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 36 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 34.84K | +25.9% | $143,091 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 37 | Tudor Investment Corp Et Al | 33.95K | New | $141,555 | 0.0% | New | 1 | SEC ↗ |
| 38 | JPMorgan Chase ✦ | 29.24K | +4.3% | $111,992 | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 39 | AQR Capital Management ✦ | 26.72K | New | $111,406 | 0.0% | New | 1 | SEC ↗ ×5 |
| 40 | Wells Fargo & Company/Mn | 23.49K | -64.8% | $97,957 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 41 | Mercer Global Advisors Inc /Adv | 22.27K | -19.6% | $92,862 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 42 | Bnp Paribas Financial Markets | 21.66K | +73.2% | $90,326 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 43 | CIBC Asset Management Inc | 20.92K | 0.0% | $87,224 | 0.0% | Held | 2 | SEC ↗ |
| 44 | HighTower Advisors, LLC | 20.03K | -45.7% | $83,513 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 45 | Manufacturers Life Insurance… | 16.68K | -12.3% | $69,560 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 46 | Qube Research & Technologies Ltd | 15.61K | -80.8% | $65,085 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 47 | Barclays Plc | 15.05K | -83.8% | $62,754 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 48 | Mariner, LLC | 11.81K | New | $49,258 | 0.0% | New | 1 | SEC ↗ |
| 49 | Prudential Financial Inc | 10.81K | New | $45,078 | 0.0% | New | 1 | SEC ↗ |
| 50 | Victory Capital Management Inc | 10.57K | New | $44,064 | 0.0% | New | 1 | SEC ↗ |
| 51 | New York State Common Retirement… | 10.30K | 0.0% | $42,951 | 0.0% | Held | 2 | SEC ↗ |
| 52 | Russell Investments Group, Ltd. | 8.48K | 0.0% | $35,349 | 0.0% | Held | 2 | SEC ↗ ×2 |
| 53 | Legal & General Group Plc | 5.43K | 0.0% | $22,626 | 0.0% | Held | 2 | SEC ↗ |
| 54 | Royal Bank Of Canada | 4.50K | -24.2% | $19,000 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 55 | California State Teachers… | 3.43K | -6.4% | $14,311 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 56 | Rockefeller Capital Management L.P. | 3.00K | 0.0% | $12,510 | 0.0% | Held | 2 | SEC ↗ |
| 57 | Group One Trading Llc | 2.15K | -42.8% | $8,986 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 58 | Toronto Dominion Bank | 1.74K | New | $7,235 | 0.0% | New | 1 | SEC ↗ |
| 59 | Cwm, Llc | 1.42K | +1251.4% | $5,917 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 60 | Jones Financial Companies Lllp | 1.02K | +629.3% | $4,155 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 61 | National Bank Of Canada /Fi/ | 582 | -11.2% | $2,414 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 62 | Osaic Holdings, Inc. | 500 | -66.7% | $2,085 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 63 | Us Bancorp \De\ | 344 | New | $1,434 | 0.0% | New | 1 | SEC ↗ |
| 64 | Pnc Financial Services Group, Inc. | 221 | +190.8% | $922 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 65 | TD Waterhouse Canada Inc. | 200 | 0.0% | $876 | 0.0% | Held | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Balyasny Asset Management L.P. | $12.49M | 0.0% |
| Squarepoint Ops LLC | $705,343 | 0.0% |
| Wellington Management | $701,489 | 0.0% |
| State Of Wisconsin Investment… | $496,705 | 0.0% |
| Quantinno Capital Management… | $273,110 | 0.0% |
| Corient Private Wealth LP | $257,974 | 0.0% |
| Simplex Trading, Llc | $177,166 | 0.0% |
| Tudor Investment Corp Et Al | $141,555 | 0.0% |
| AQR Capital Management | $111,406 | 0.0% |
| Mariner, LLC | $49,258 | 0.0% |
| Prudential Financial Inc | $45,078 | 0.0% |
| Victory Capital Management Inc | $44,064 | 0.0% |
Exited
| Marshall Wace | $1.12M | was 0.0% |
| Renaissance Technologies | $969,356 | was 0.0% |
| Point72 Asset Management | $863,995 | was 0.0% |
| Jane Street Group, Llc | $725,986 | was 0.0% |
| ProShare Advisors LLC | $29,945 | was 0.0% |
| Raymond James Financial Inc | $29,508 | was 0.0% |
| Northwestern Mutual Wealth… | $99 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 135 holders, 78.53M shares, $325.34M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Sep 04
Lantheus Alpha Therapy, LLC
10% owner · 167.15K sh · $526,051
Sep 03
Lantheus Alpha Therapy, LLC
10% owner · 80.78K sh · $250,896
Sep 02
Lantheus Alpha Therapy, LLC
10% owner · 42.13K sh · $131,219
Sep 01
Lantheus Alpha Therapy, LLC
10% owner · 35.77K sh · $111,574
Aug 31
Lantheus Alpha Therapy, LLC
10% owner · 78.14K sh · $245,610
Aug 31
Lantheus Holdings, Inc.
10% owner · 78.14K sh · $245,610
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Sep 23
SC 13D/A: Lantheus Holdings, Inc.
7.7% of class · View original SEC filing ↗
Sep 04
SC 13D/A: Lantheus Holdings, Inc.
10.0% of class · View original SEC filing ↗
Aug 13
SC 13G/A: MILLENNIUM MANAGEMENT LLC
Aug 07
SC 13G: STATE STREET CORP
Jul 29
SC 13G: BlackRock, Inc.
Jul 20
SC 13G: MILLENNIUM MANAGEMENT LLC
Jun 30
SC 13G: MILLENNIUM MANAGEMENT LLC
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q1 2026 ·
Methodology ·
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