Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in SNY held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | DODGE & COX | 29.5M | $1.42B | -47.8% | 1.222% | 0.78% |
| 2 | Kentucky Farm Bureau Mutual Insurance Co | 20K | $971.8M | — | 0.001% | 0.02% |
| 3 | MORGAN STANLEY | 12.5M | $602.8M | +37.5% | 0.518% | 0.04% |
| 4 | Fisher Asset Management, LLC | 11.4M | $551.3M | -5.8% | 0.474% | 0.19% |
| 5 | BANK OF AMERICA CORP /DE/ | 9.5M | $457.0M | +11.0% | 0.393% | 0.03% |
| 6 | FRANKLIN RESOURCES INC | 7.2M | $345.2M | +40.5% | 0.297% | 0.08% |
| 7 | Invesco Ltd. | 6.6M | $319.0M | +8.4% | 0.274% | 0.05% |
| 8 | BARROW HANLEY MEWHINNEY & STRAUSS LLC | 5.9M | $283.7M | -15.5% | 0.244% | 0.93% |
| 9 | Mondrian Investment Partners LTD | 5.0M | $242.8M | +12.1% | 0.209% | 3.63% |
| 10 | FEDERATED HERMES, INC. | 4.8M | $229.1M | +30.5% | 0.197% | 0.37% |
| 11 | FMR LLC | 4.0M | $193.2M | +17.9% | 0.166% | 0.01% |
| 12 | ENVESTNET ASSET MANAGEMENT INC | 3.9M | $186.1M | +21.1% | 0.160% | 0.05% |
| 13 | RAYMOND JAMES FINANCIAL INC | 3.8M | $183.7M | +15.8% | 0.158% | 0.06% |
| 14 | BRANDES INVESTMENT PARTNERS, LP | 3.7M | $179.4M | +27.8% | 0.154% | 1.27% |
| 15 | Boston Partners | 3.6M | $173.4M | -1.0% | 0.149% | 0.18% |
| 16 | WELLS FARGO & COMPANY/MN | 3.4M | $164.5M | +24.6% | 0.141% | 0.04% |
| 17 | BlackRock, Inc. | 3.2M | $153.4M | -40.4% | 0.132% | 0.00% |
| 18 | ROYAL BANK OF CANADA | 3.2M | $152.0M | +17.5% | 0.131% | 0.03% |
| 19 | EQUITY INVESTMENT CORP | 2.7M | $128.3M | +1.5% | 0.110% | 2.51% |
| 20 | GOLDMAN SACHS GROUP INC | 2.6M | $124.4M | +30.6% | 0.107% | 0.01% |
| 21 | VGI Partners Ltd | 2.5M | $122.6M | +33.1% | 0.105% | 6.67% |
| 22 | BARCLAYS PLC | 2.4M | $113.5M | +10.4% | 0.098% | 0.05% |
| 23 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 2.3M | $112.4M | -6.9% | 0.097% | 0.01% |
| 24 | Alyeska Investment Group, L.P. | 2.3M | $111.1M | — | 0.096% | 0.31% |
| 25 | NORTHERN TRUST CORP | 2.3M | $109.8M | +2.4% | 0.094% | 0.01% |
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 SNY — a direct measure of their conviction.
Filings activity in SNY during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 724 | 0.1% | 9.78% | +0.13 pp | $10.46B | +1.4% |
| Q4 2025 | 725 | +5.4% | 9.65% | 0.36 pp | $10.31B | 3.6% |
| Q3 2025 | 688 | 2.7% | 10.01% | 8.57 pp | $10.69B | 46% |
| Q2 2025 | 707 | 4.2% | 18.58% | +6.00 pp | $19.86B | +48% |
| Q1 2025 | 738 | +5.6% | 12.58% | +1.55 pp | $13.45B | +14% |
| Q4 2024 | 699 | 3.2% | 11.03% | 3.45 pp | $11.79B | 24% |
| Q3 2024 | 722 | +3.3% | 14.48% | +0.25 pp | $15.47B | +1.8% |
| Q2 2024 | 699 | — | 14.23% | — | $15.20B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying SNY stock.
Based on Q1 2026 13F filings, institutional ownership of Sanofi stands at 9.8%, held across 724 reporting institutions.
DODGE & COX is the largest reported institutional holder of SNY, with approximately 29,504,632 shares worth $1.42B as of Q1 2026.
Yes — 2 widely-followed marquee investors appear among the top 25 institutional holders of SNY, including Fisher Asset Management, LLC, SUSQUEHANNA INTERNATIONAL GROUP, LLP.
Our composite Smart Money Score for SNY is 51 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
125 institutions opened new positions in SNY during Q1 2026, while 126 fully exited. 274 added to existing positions and 317 trimmed.
SNY institutional ownership rose by 0.13 percentage points quarter-over-quarter, with a net change of -1 holders.
The top 10 institutions account for 51.9% of all reported 13F value in SNY, and the top 25 account for 73.0%.
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.
Sanofi (SNY) Institutional Ownership