Security record · archived quarter
ALKS
Alkermes plc · Healthcare · Drug Manufacturers - Specialty & Generic
122Tracked holders
-3Δ holders
122.08MShares held
$4.29BReported value
+3New positions
−7Exits
Momentum inputs (comparable managers):
holder breadth -2.4% ·
share flow -6.4% ·
net new positions -3.3%
— formula
Broad distribution — falling shares and fewer 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 |
|---|---|---|---|---|---|---|
| Q2 2026 | 121 | +1 | 123.13M | $6.45B | +12 | −10 |
| Q1 2026 | 122 | -3 | 122.08M | $4.29B | +3 | −7 |
| Q4 2025 | 124 | +2 | 142.93M | $4.00B | +3 | — |
| Q3 2025 | 20 | -1 | 95.12M | $2.85B | — | −2 |
| Q2 2025 | 19 | +2 | 84.64M | $2.42B | +2 | — |
| Q1 2025 | 14 | 0 | 39.73M | $1.31B | — | — |
| Q4 2024 | 14 | 0 | 45.20M | $1.30B | — | — |
| Q3 2024 | 13 | +2 | 43.42M | $1.22B | +2 | — |
| Q2 2024 | 11 | — | 42.07M | $1.01B | — | — |
Who holds it · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 28.31M | +0.1% | $1.00B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 28.31M | +0.1% | $1.00B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 28.31M | +0.1% | $1.00B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 28.31M | +0.1% | $1.00B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 28.31M | +0.1% | $1.00B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 28.31M | +0.1% | $1.00B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 28.31M | +0.1% | $1.00B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 28.31M | +0.1% | $1.00B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 28.31M | +0.1% | $1.00B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 28.31M | +0.1% | $1.00B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 28.31M | +0.1% | $1.00B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 28.31M | +0.1% | $1.00B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 28.31M | +0.1% | $1.00B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 28.31M | +0.1% | $1.00B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 28.31M | +0.1% | $1.00B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 28.31M | +0.1% | $1.00B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 28.31M | +0.1% | $1.00B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 18 | BlackRock ✦ (passive) | 28.31M | +0.1% | $1.00B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 19 | BlackRock ✦ (passive) | 28.31M | +0.1% | $1.00B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 20 | BlackRock ✦ (passive) | 28.31M | +0.1% | $1.00B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 21 | State Street Global Advisors ✦ (passive) | 9.47M | -0.1% | $334.69M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 22 | Vanguard Capital Management Llc | 7.43M | — | $262.63M | 0.0% | n/c | 1 | SEC ↗ |
| 23 | Renaissance Technologies ✦ | 6.16M | -7.6% | $217.83M | 0.3% | ▼ Trim | 8 | SEC ↗ |
| 24 | American Century Companies Inc | 6.07M | +1.9% | $214.71M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 25 | T. Rowe Price ✦ | 4.66M | -48.2% | $164.94M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 26 | T. Rowe Price ✦ | 4.66M | -48.2% | $164.94M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 27 | Dimensional Fund Advisors Lp | 4.52M | +2.5% | $159.85M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 28 | Dimensional Fund Advisors Lp | 4.52M | +2.5% | $159.85M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 29 | Dimensional Fund Advisors Lp | 4.52M | +2.5% | $159.85M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 30 | Dimensional Fund Advisors Lp | 4.52M | +2.5% | $159.85M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 31 | Dimensional Fund Advisors Lp | 4.52M | +2.5% | $159.85M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 32 | Geode Capital Management ✦ (passive) | 4.18M | +2.5% | $147.91M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 33 | Geode Capital Management ✦ (passive) | 4.18M | +2.5% | $147.91M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 34 | JPMorgan Chase ✦ | 4.10M | -20.9% | $123.67M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 35 | JPMorgan Chase ✦ | 4.10M | -20.9% | $123.67M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 36 | JPMorgan Chase ✦ | 4.10M | -20.9% | $123.67M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 37 | JPMorgan Chase ✦ | 4.10M | -20.9% | $123.67M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 38 | JPMorgan Chase ✦ | 4.10M | -20.9% | $123.67M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 39 | Wellington Management ✦ | 2.97M | -1.7% | $105.03M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 40 | Wellington Management ✦ | 2.97M | -1.7% | $105.03M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 41 | Wellington Management ✦ | 2.97M | -1.7% | $105.03M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 42 | Wellington Management ✦ | 2.97M | -1.7% | $105.03M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 43 | Wellington Management ✦ | 2.97M | -1.7% | $105.03M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 44 | Wellington Management ✦ | 2.97M | -1.7% | $105.03M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 45 | First Trust Advisors Lp | 2.97M | +104.2% | $104.98M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 46 | PRIMECAP Management ✦ | 2.54M | -0.9% | $89.81M | 0.1% | ▼ Trim | 8 | SEC ↗ |
| 47 | Nuveen, LLC | 2.46M | +1.4% | $87.01M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 48 | Nuveen, LLC | 2.46M | +1.4% | $87.01M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 49 | Nuveen, LLC | 2.46M | +1.4% | $87.01M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 50 | Holocene Advisors, LP | 2.32M | New | $81.94M | 0.2% | New | 1 | SEC ↗ |
| 51 | Citadel Advisors ✦ | 2.24M | +87.1% | $79.26M | 0.1% | ▲ Add | 8 | SEC ↗ |
| 52 | Citadel Advisors ✦ | 2.24M | +87.1% | $79.26M | 0.1% | ▲ Add | 8 | SEC ↗ |
| 53 | Charles Schwab Investment… | 2.24M | +3.9% | $79.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 54 | Goldman Sachs Group ✦ | 1.88M | -17.0% | $66.55M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 55 | Goldman Sachs Group ✦ | 1.88M | -17.0% | $66.55M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 56 | Goldman Sachs Group ✦ | 1.88M | -17.0% | $66.55M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 57 | Goldman Sachs Group ✦ | 1.88M | -17.0% | $66.55M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 58 | Loomis Sayles & Co L P | 1.78M | -6.2% | $63.10M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 59 | Loomis Sayles & Co L P | 1.78M | -6.2% | $63.10M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 60 | Morgan Stanley ✦ | 1.74M | -8.1% | $61.39M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 61 | Morgan Stanley ✦ | 1.74M | -8.1% | $61.39M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 62 | Morgan Stanley ✦ | 1.74M | -8.1% | $61.39M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 63 | Morgan Stanley ✦ | 1.74M | -8.1% | $61.39M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 64 | Morgan Stanley ✦ | 1.74M | -8.1% | $61.39M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 65 | Morgan Stanley ✦ | 1.74M | -8.1% | $61.39M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 66 | Morgan Stanley ✦ | 1.74M | -8.1% | $61.39M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 67 | Morgan Stanley ✦ | 1.74M | -8.1% | $61.39M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 68 | Morgan Stanley ✦ | 1.74M | -8.1% | $61.39M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 69 | Northern Trust Corp | 1.70M | +2.6% | $60.01M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 70 | Northern Trust Corp | 1.70M | +2.6% | $60.01M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 71 | Northern Trust Corp | 1.70M | +2.6% | $60.01M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 72 | Northern Trust Corp | 1.70M | +2.6% | $60.01M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 73 | Northern Trust Corp | 1.70M | +2.6% | $60.01M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 74 | Northern Trust Corp | 1.70M | +2.6% | $60.01M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 75 | Fidelity (FMR) ✦ | 1.32M | -2.3% | $46.81M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 76 | Fidelity (FMR) ✦ | 1.32M | -2.3% | $46.81M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 77 | Fidelity (FMR) ✦ | 1.32M | -2.3% | $46.81M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 78 | Fidelity (FMR) ✦ | 1.32M | -2.3% | $46.81M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 79 | Bank Of America Corp /De/ | 1.21M | -9.2% | $42.82M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 80 | Bank Of America Corp /De/ | 1.21M | -9.2% | $42.82M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 81 | Bank Of America Corp /De/ | 1.21M | -9.2% | $42.82M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 82 | Bank Of America Corp /De/ | 1.21M | -9.2% | $42.82M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 83 | Bank Of America Corp /De/ | 1.21M | -9.2% | $42.82M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 84 | Artisan Partners Limited Partnership | 1.11M | -17.6% | $39.31M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 85 | Bank of New York Mellon Corp | 1.04M | -3.5% | $36.65M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 86 | Bank of New York Mellon Corp | 1.04M | -3.5% | $36.65M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 87 | Bank of New York Mellon Corp | 1.04M | -3.5% | $36.65M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 88 | Bank of New York Mellon Corp | 1.04M | -3.5% | $36.65M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 89 | Bank of New York Mellon Corp | 1.04M | -3.5% | $36.65M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 90 | Bank of New York Mellon Corp | 1.04M | -3.5% | $36.65M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 91 | Bank of New York Mellon Corp | 1.04M | -3.5% | $36.65M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 92 | Bank of New York Mellon Corp | 1.04M | -3.5% | $36.65M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 93 | Bank of New York Mellon Corp | 1.04M | -3.5% | $36.65M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 94 | Marshall Wace ✦ | 999.32K | +669.3% | $35.34M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 95 | Marshall Wace ✦ | 999.32K | +669.3% | $35.34M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 96 | Marshall Wace ✦ | 999.32K | +669.3% | $35.34M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 97 | Principal Financial Group Inc | 958.02K | +1.1% | $33.88M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 98 | Principal Financial Group Inc | 958.02K | +1.1% | $33.88M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 99 | Pictet Asset Management Holding SA | 942.18K | -36.2% | $30.17M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 100 | Two Sigma Investments ✦ | 780.68K | -35.7% | $27.60M | 0.0% | ▼ Trim | 8 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Holocene Advisors, LP | $81.94M | 0.2% |
Exited
| Norges Bank | $54.44M | was 0.0% |
| Arrowstreet Capital | $40.59M | was 0.0% |
| Qube Research & Technologies… | $7.74M | was 0.0% |
| Tudor Investment Corp Et Al | $2.31M | was 0.0% |
| Millennium Management | $1.53M | was 0.0% |
| Td Asset Management Inc | $1.29M | was 0.0% |
| Group One Trading Llc | $263,739 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 384 holders, 171.47M shares, $5.79B 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)
Aug 17
Nichols Christian Todd
Officer · 6.91K sh · $339,967
Aug 17
Nichols Christian Todd
Officer · 664 sh · $32,969
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
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 ·
Get this via the API