AMGN
Amgen Inc. · Healthcare · Drug Manufacturers - General
Momentum inputs (comparable managers):
holder breadth +4.3% ·
share flow -1.4% ·
net new positions +4.2%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 169 | -1 | 364.70M | $131.99B | +5 | −7 |
| Q1 2026 | 174 | -2 | 366.40M | $128.82B | +4 | −7 |
| Q4 2025 | 175 | 0 | 394.29M | $128.98B | +2 | −1 |
| Q3 2025 | 26 | 0 | 206.42M | $58.23B | — | −1 |
| Q2 2025 | 24 | +1 | 183.25M | $51.15B | +2 | −1 |
| Q1 2025 | 20 | -2 | 81.79M | $25.47B | — | −2 |
| Q4 2024 | 22 | +2 | 74.78M | $19.48B | +2 | — |
| Q3 2024 | 19 | -1 | 39.65M | $12.76B | +1 | −2 |
| Q2 2024 | 20 | — | 39.58M | $12.36B | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 53.71M | — | $15.00B | 0.2% | n/c | 1 | SEC ↗ ×6 |
| 2 | BlackRock ✦ (passive) | 46.60M | — | $13.01B | 0.2% | n/c | 1 | SEC ↗ ×24 |
| 3 | State Street Global Advisors ✦ (passive) | 29.36M | +0.6% | $8.20B | 0.3% | ▲ Add | 3 | SEC ↗ |
| 4 | Capital World Investors ✦ | 16.86M | +0.9% | $4.71B | 0.7% | ▲ Add | 4 | SEC ↗ |
| 5 | Geode Capital Management ✦ (passive) | 13.02M | +2.3% | $3.62B | 0.3% | ▲ Add | 5 | SEC ↗ ×2 |
| 6 | PRIMECAP Management ✦ | 10.63M | -14.2% | $2.97B | 2.4% | ▼ Trim | 5 | SEC ↗ |
| 7 | Norges Bank ✦ (passive) | 5.96M | +5.4% | $1.66B | 0.2% | ▲ Add | 5 | SEC ↗ |
| 8 | Fidelity (FMR) ✦ | 3.67M | — | $1.02B | 0.1% | n/c | 1 | SEC ↗ ×5 |
| 9 | T. Rowe Price ✦ | 1.14M | -43.9% | $319.00M | 0.0% | ▼ Trim | 5 | SEC ↗ ×2 |
| 10 | D. E. Shaw & Co. ✦ | 625.08K | -50.4% | $174.53M | 0.2% | ▼ Trim | 5 | SEC ↗ ×2 |
| 11 | Fisher Asset Management ✦ | 409.82K | -6.4% | $114.43M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 12 | Renaissance Technologies ✦ | 277.30K | +142.4% | $77.42M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 13 | AQR Capital Management ✦ | 269.26K | +194.3% | $74.98M | 0.1% | ▲ Add | 5 | SEC ↗ ×6 |
| 14 | Arrowstreet Capital ✦ | 214.31K | New | $59.84M | 0.0% | New | 1 | SEC ↗ |
| 15 | Adage Capital Partners ✦ | 188.86K | -16.4% | $52.73M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 16 | Wellington Management ✦ | 143.47K | -44.2% | $40.06M | 0.0% | ▼ Trim | 5 | SEC ↗ ×8 |
| 17 | ARK Investment Management ✦ | 57.93K | -1.9% | $16.18M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 18 | Millennium Management ✦ | 34.08K | -32.3% | $9.52M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 19 | Citadel Advisors ✦ | 29.11K | +45.5% | $8.13M | 0.0% | ▲ Add | 5 | SEC ↗ ×2 |
| 20 | Gotham Asset Management ✦ | 23.30K | -8.8% | $6.51M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 21 | Dodge & Cox ✦ | 13.68K | +1.1% | $3.82M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 22 | Bridgewater Associates ✦ | 7.43K | New | $2.08M | 0.0% | New | 1 | SEC ↗ |
| 23 | GAMCO Investors ✦ | 5.68K | +25.1% | $1.59M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 24 | Two Sigma Investments ✦ | 3.24K | -99.1% | $905,478 | 0.0% | ▼ Trim | 5 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Arrowstreet Capital | $59.84M | 0.0% |
| Bridgewater Associates | $2.08M | 0.0% |
Exited
| Marshall Wace | $55.54M | was 0.1% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 3,100 holders, 420.54M shares, $144.29B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
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)
Officer · 1.25K sh · $521,365
Officer · 2.00K sh · $825,134
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology