Security record
AMLX
Amylyx Pharmaceuticals, Inc. · Healthcare · Biotechnology
79Tracked holders
+11Δ holders
60.68MShares held
$1.09BReported value
+14New positions
−2Exits
Momentum inputs (comparable managers):
holder breadth +16.2% ·
share flow +5.3% ·
net new positions +15.2%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 79 | +11 | 60.68M | $1.09B | +14 | −2 |
| Q1 2026 | 70 | -3 | 62.54M | $868.96M | +6 | −9 |
| Q4 2025 | 73 | 0 | 62.47M | $754.72M | — | — |
| Q3 2025 | 18 | +1 | 42.12M | $572.37M | +1 | — |
| Q2 2025 | 14 | -1 | 33.34M | $213.68M | — | −1 |
| Q1 2025 | 12 | +1 | 15.66M | $55.46M | +2 | −1 |
| Q4 2024 | 11 | 0 | 5.41M | $20.47M | +1 | −1 |
| Q3 2024 | 10 | +2 | 5.23M | $16.93M | +2 | — |
| Q2 2024 | 8 | — | 10.16M | $19.31M | — | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Fidelity (FMR) ✦ | 16.73M | +0.6% | $300.43M | 0.0% | ▲ Add | 5 | SEC ↗ ×5 |
| 2 | BlackRock ✦ (passive) | 8.83M | 0.0% | $158.53M | 0.0% | ▼ Trim | 5 | SEC ↗ ×13 |
| 3 | Vanguard Capital Management Llc | 4.22M | +2.0% | $75.87M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 4 | Morgan Stanley ✦ | 3.13M | +43.9% | $56.23M | 0.0% | ▲ Add | 4 | SEC ↗ ×7 |
| 5 | Franklin Resources Inc | 2.95M | +30.4% | $52.99M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 6 | Goldman Sachs Group ✦ | 2.86M | +8.8% | $51.33M | 0.0% | ▲ Add | 4 | SEC ↗ ×3 |
| 7 | State Street Global Advisors ✦ (passive) | 2.60M | +10.2% | $46.76M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 8 | Geode Capital Management ✦ (passive) | 2.34M | +5.6% | $41.95M | 0.0% | ▲ Add | 9 | SEC ↗ ×2 |
| 9 | JPMorgan Chase ✦ | 1.86M | +1067.2% | $34.92M | 0.0% | ▲ Add | 4 | SEC ↗ ×4 |
| 10 | Adage Capital Partners ✦ | 1.90M | -46.6% | $34.12M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 11 | Alyeska Investment Group, L.P. | 1.05M | New | $18.91M | 0.0% | New | 1 | SEC ↗ |
| 12 | Dimensional Fund Advisors Lp | 902.46K | -0.1% | $16.22M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 13 | Northern Trust Corp | 831.74K | +6.7% | $14.94M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 14 | Bank Of America Corp /De/ | 821.84K | -38.2% | $14.76M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 15 | Aberdeen Group plc | 737.67K | New | $13.25M | 0.0% | New | 1 | SEC ↗ |
| 16 | Charles Schwab Investment… | 725.03K | +1.2% | $13.02M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 17 | Connor, Clark & Lunn Investment… | 721.00K | -17.0% | $12.95M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 18 | Balyasny Asset Management L.P. | 684.97K | -38.1% | $12.30M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 19 | Qube Research & Technologies Ltd | 681.39K | -3.0% | $12.24M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 20 | Two Sigma Investments ✦ | 593.43K | +266.4% | $10.66M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 21 | Deutsche Bank Ag\ | 557.94K | -56.0% | $10.02M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 22 | Federated Hermes, Inc. | 462.20K | +27.1% | $8.30M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 23 | Nuveen, LLC | 330.52K | +24.8% | $5.94M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 24 | Ensign Peak Advisors, Inc | 305.44K | New | $5.49M | 0.0% | New | 1 | SEC ↗ |
| 25 | Jane Street Group, Llc | 299.56K | New | $5.38M | 0.0% | New | 1 | SEC ↗ ×2 |
| 26 | Bank of New York Mellon Corp | 274.44K | +9.3% | $4.93M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 27 | UBS Group AG | 271.88K | -16.2% | $4.88M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 28 | First Trust Advisors Lp | 254.59K | New | $4.57M | 0.0% | New | 1 | SEC ↗ |
| 29 | Wellington Management ✦ | 212.84K | -11.9% | $3.82M | 0.0% | ▼ Trim | 7 | SEC ↗ ×3 |
| 30 | Citadel Advisors ✦ | 178.69K | -56.6% | $3.21M | 0.0% | ▼ Trim | 9 | SEC ↗ ×2 |
| 31 | D. E. Shaw & Co. ✦ | 174.28K | +134.8% | $3.13M | 0.0% | ▲ Add | 9 | SEC ↗ ×2 |
| 32 | UBS AM, a distinct business unit of… | 173.41K | +10.4% | $3.11M | 0.0% | ▲ Add | 3 | SEC ↗ ×8 |
| 33 | Norges Bank ✦ (passive) | 159.90K | New | $2.87M | 0.0% | New | 1 | SEC ↗ |
| 34 | T. Rowe Price ✦ | 145.13K | +19.5% | $2.61M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 35 | Swiss National Bank | 144.20K | +10.7% | $2.59M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 36 | Invesco Ltd. | 139.94K | -18.5% | $2.51M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 37 | Wells Fargo & Company/Mn | 128.16K | +70.7% | $2.30M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 38 | Ameriprise Financial Inc | 125.48K | New | $2.25M | 0.0% | New | 1 | SEC ↗ |
| 39 | Rhumbline Advisers | 112.92K | +4.1% | $2.03M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 40 | Russell Investments Group, Ltd. | 87.57K | +47.6% | $1.57M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 41 | Quantinno Capital Management LP | 80.85K | New | $1.45M | 0.0% | New | 1 | SEC ↗ |
| 42 | Alliancebernstein L.P. | 104.40K | +29.2% | $1.45M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 43 | Citigroup Inc | 68.68K | +116.1% | $1.23M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 44 | State Of Wisconsin Investment Board | 61.28K | -15.0% | $1.10M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 45 | Corient Private Wealth LP | 59.32K | New | $1.07M | 0.0% | New | 1 | SEC ↗ |
| 46 | Legal & General Group Plc | 56.48K | +1.3% | $1.01M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 47 | Barclays Plc | 56.26K | -94.2% | $1.01M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 48 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 42.35K | -0.5% | $760,624 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 49 | Manufacturers Life Insurance… | 37.83K | -2.5% | $679,391 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 50 | Jennison Associates Llc | 35.84K | New | $643,705 | 0.0% | New | 1 | SEC ↗ |
| 51 | Tudor Investment Corp Et Al | 35.41K | +13.0% | $635,964 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 52 | New York State Common Retirement… | 34.30K | +56.6% | $616,028 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 53 | Canada Pension Plan Investment Board | 27.60K | New | $495,696 | 0.0% | New | 1 | SEC ↗ |
| 54 | Hrt Financial Lp | 23.87K | New | $428,000 | 0.0% | New | 1 | SEC ↗ |
| 55 | AQR Capital Management ✦ | 20.82K | -28.4% | $373,909 | 0.0% | ▼ Trim | 4 | SEC ↗ ×4 |
| 56 | Brown Advisory Inc | 19.93K | 0.0% | $357,943 | 0.0% | Held | 3 | SEC ↗ |
| 57 | Sei Investments Co | 19.75K | -76.8% | $354,710 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 58 | Voya Investment Management Llc | 17.85K | +17.2% | $320,532 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 59 | Zurcher Kantonalbank (Zurich… | 16.96K | -58.4% | $304,530 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 60 | Bnp Paribas Financial Markets | 16.58K | -21.6% | $297,723 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 61 | Creative Planning | 15.88K | -11.2% | $285,223 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 62 | ProShare Advisors LLC | 15.69K | -13.6% | $281,702 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 63 | Prudential Financial Inc | 15.11K | +7.0% | $271,376 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 64 | Hsbc Holdings Plc | 14.55K | +27.5% | $268,958 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 65 | Royal Bank Of Canada | 14.65K | +18.3% | $263,000 | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 66 | Amundi | 12.89K | 0.0% | $231,594 | 0.0% | Held | 2 | SEC ↗ |
| 67 | Pictet Asset Management Holding SA | 10.77K | 0.0% | $193,393 | 0.0% | Held | 2 | SEC ↗ |
| 68 | Victory Capital Management Inc | 10.71K | +0.6% | $192,298 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 69 | Susquehanna International Group, Llp | 10.34K | -74.0% | $185,688 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 70 | Mirae Asset Global Investments Co.… | 4.97K | -13.2% | $89,315 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 71 | Us Bancorp \De\ | 3.64K | +76.4% | $65,357 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 72 | Group One Trading Llc | 1.62K | New | $29,167 | 0.0% | New | 1 | SEC ↗ |
| 73 | BNP Paribas Asset Management… | 1.35K | -4.7% | $24,264 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 74 | Rockefeller Capital Management L.P. | 1.27K | 0.0% | $22,881 | 0.0% | Held | 3 | SEC ↗ ×2 |
| 75 | Fifth Third Bancorp | 972 | +28.7% | $17,457 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 76 | Jones Financial Companies Lllp | 597 | +121.1% | $10,621 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 77 | Osaic Holdings, Inc. | 483 | -8.5% | $8,674 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 78 | Pnc Financial Services Group, Inc. | 406 | +43.5% | $7,292 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 79 | Optiver Holding B.V. | 220 | New | $3,951 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Alyeska Investment Group, L.P. | $18.91M | 0.0% |
| Aberdeen Group plc | $13.25M | 0.0% |
| Ensign Peak Advisors, Inc | $5.49M | 0.0% |
| Jane Street Group, Llc | $5.38M | 0.0% |
| First Trust Advisors Lp | $4.57M | 0.0% |
| Norges Bank | $2.87M | 0.0% |
| Ameriprise Financial Inc | $2.25M | 0.0% |
| Quantinno Capital Management… | $1.45M | 0.0% |
| Corient Private Wealth LP | $1.07M | 0.0% |
| Jennison Associates Llc | $643,705 | 0.0% |
| Canada Pension Plan… | $495,696 | 0.0% |
| Hrt Financial Lp | $428,000 | 0.0% |
Exited
| Squarepoint Ops LLC | $1.60M | was 0.0% |
| Point72 Asset Management | $1.48M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 170 holders, 113.99M shares, $1.58B 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)
Oct 05
MILNE GEORGE M JR
Director · 30.00K sh · $830,904
Sep 10
Cohen Joshua B
Officer, Director · 29.55K sh · $950,040
Sep 10
Cohen Joshua B
Officer, Director · 919 sh · $30,464
Sep 10
Mazzariello Gina
Officer · 9.53K sh · $309,140
Sep 10
Mazzariello Gina
Officer · 11 sh · $367
Sep 10
FRATES JAMES M
Officer · 9.77K sh · $315,195
Sep 10
FRATES JAMES M
Officer · 1.04K sh · $34,626
Sep 10
Bedrosian Camille L
Officer · 7.95K sh · $256,004
Sep 10
Bedrosian Camille L
Officer · 2.08K sh · $68,864
Sep 10
Klee Justin B.
Officer, Director · 29.02K sh · $932,553
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: Q2 2026 ·
Methodology ·
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