| 4 | STATE STREET CORP | 4.8M | $3.01B | +3.6% | 4.693% | 0.04% |
| 5 | Invesco Ltd. | 3.9M | $2.46B | +80.7% | 3.825% | 0.19% |
| 6 | JPMORGAN CHASE & CO | 3.8M | $2.38B | -12.5% | 3.663% | 0.13% |
| 7 | VANGUARD PORTFOLIO MANAGEMENT LLC | 3.2M | $1.98B | +84.5% | 3.082% | 0.09% |
| 8 | FRANKLIN RESOURCES INC | 2.8M | $1.73B | +1.8% | 2.690% | 0.37% |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 2.6M | $1.63B | +0.7% | 2.549% | 0.09% |
| 10 | Nuveen, LLC | 2.0M | $1.26B | -2.2% | 1.961% | 0.30% |
| 11 | LOOMIS SAYLES & CO L P | 1.9M | $1.16B | -2.8% | 1.805% | 1.45% |
| 12 | PeakShares LLC | 2K | $975.2M | +7.9% | 0.002% | 0.73% |
| 13 | MORGAN STANLEY | 1.4M | $871.5M | +5.9% | 1.357% | 0.05% |
| 14 | GOLDMAN SACHS GROUP INC | 1.3M | $832.0M | -11.3% | 1.295% | 0.07% |
| 15 | BANK OF AMERICA CORP /DE/ | 1.3M | $805.0M | +8.5% | 1.253% | 0.05% |
| 16 | WELLINGTON MANAGEMENT GROUP LLP | 1.3M | $792.0M | -30.9% | 1.233% | 0.14% |
| 17 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1.3M | $781.3M | +28.6% | 1.216% | 0.06% |
| 18 | NORGES BANK | 1.2M | $731.3M | — | 1.138% | 0.07% |
| 19 | AQR CAPITAL MANAGEMENT LLC | 1.1M | $702.2M | -8.5% | 1.093% | 0.24% |
| 20 | Amundi | 1.0M | $632.0M | +0.4% | 0.984% | 0.15% |
| 21 | NORTHERN TRUST CORP | 916K | $571.5M | -2.7% | 0.890% | 0.07% |
| 22 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 846K | $527.7M | +5.2% | 0.822% | 0.07% |
| 23 | FMR LLC | 832K | $518.8M | -45.2% | 0.808% | 0.02% |
| 24 | Capital World Investors | 815K | $508.1M | -42.6% | 0.791% | 0.06% |
| 25 | Legal & General Group Plc | 760K | $473.9M | +3.8% | 0.738% | 0.10% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in REGN — a direct measure of their conviction.
| 92.46% |
| +0.18 pp |
| $55.01B |
| 13% |
| Q4 2024 | 1,262 | 5.1% | 92.28% | 1.18 pp | $63.53B | 36% |
| Q3 2024 | 1,330 | — | 93.46% | — | $99.90B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
109 institutions opened new positions in REGN during Q2 2026, while 167 fully exited. 198 added to existing positions and 989 trimmed.
REGN institutional ownership rose by 3.06 percentage points quarter-over-quarter, with a net change of -46 holders.
The top 10 institutions account for 47.6% of all reported 13F value in REGN, and the top 25 account for 66.5%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Regeneron Pharmaceuticals, Inc. (REGN) Institutional Ownership