Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in GLPG held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | GILEAD SCIENCES, INC. | 16.7M | $501.2M | 0.0% | 25.354% | 23.67% |
| 2 | TANG CAPITAL MANAGEMENT LLC | 3.8M | $113.6M | -3.5% | 5.745% | 5.77% |
| 3 | Madison Avenue Partners, LP | 2.5M | $74.0M | +11.4% | 3.741% | 3.22% |
| 4 | EcoR1 Capital, LLC | 1.7M | $50.0M | 0.0% | 2.530% | 2.12% |
| 5 | Prosight Management, LP | 1.6M | $46.5M | +44.3% | 2.352% | 7.63% |
| 6 | AMERIPRISE FINANCIAL INC | 1.4M | $42.7M | -1.8% | 2.162% | 0.01% |
| 7 | DME Capital Management, LP | 483K | $14.5M | 0.0% | 0.733% | 0.45% |
| 8 | SEGALL BRYANT & HAMILL, LLC | 428K | $14.0M | -4.5% | 0.650% | 0.23% |
| 9 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 463K | $13.9M | +6540.2% | 0.702% | 0.00% |
| 10 | Point72 Asset Management, L.P. | 332K | $10.0M | -31.7% | 0.504% | 0.01% |
| 11 | RENAISSANCE TECHNOLOGIES LLC | 315K | $9.5M | +1.6% | 0.479% | 0.01% |
| 12 | BlackRock, Inc. | 312K | $9.4M | -0.7% | 0.474% | 0.00% |
| 13 | D. E. Shaw & Co., Inc. | 216K | $6.5M | -21.6% | 0.327% | 0.01% |
| 14 | UBS Group AG | 175K | $5.3M | -49.8% | 0.266% | 0.00% |
| 15 | CITADEL ADVISORS LLC | 147K | $4.4M | +35.7% | 0.223% | 0.00% |
| 16 | DAFNA Capital Management LLC | 130K | $3.9M | 0.0% | 0.198% | 0.89% |
| 17 | MILLENNIUM MANAGEMENT LLC | 108K | $3.2M | -68.2% | 0.164% | 0.00% |
| 18 | OLD MISSION CAPITAL LLC | 96K | $2.9M | β | 0.145% | 0.07% |
| 19 | Man Group plc | 80K | $2.4M | +68.6% | 0.122% | 0.00% |
| 20 | Hudson Bay Capital Management LP | 78K | $2.3M | -54.4% | 0.118% | 0.03% |
| 21 | Tower Research Capital LLC (TRC) | 67K | $2.0M | +12041.6% | 0.101% | 0.05% |
| 22 | ALPS ADVISORS INC | 54K | $1.6M | -0.2% | 0.081% | 0.01% |
| 23 | GOLDMAN SACHS GROUP INC | 45K | $1.4M | +307.1% | 0.069% | 0.00% |
| 24 | AMERICAN CENTURY COMPANIES INC | 39K | $1.2M | +45.1% | 0.059% | 0.00% |
| 25 | BAROMETER CAPITAL MANAGEMENT INC. | 38K | $1.1M | +2.7% | 0.058% | 0.39% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in GLPG β a direct measure of their conviction.
Filings activity in GLPG during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new GLPG position in Q1 2026
Institutions that fully closed their GLPG position in Q1 2026
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 88 | 3.3% | 51.54% | 4.37 pp | $950M | 7.8% |
| Q4 2025 | 91 | 1.1% | 55.91% | 3.20 pp | $1.03B | 5.4% |
| Q3 2025 | 92 | +8.2% | 59.11% | +11.50 pp | $1.09B | +24% |
| Q2 2025 | 85 | +1.2% | 47.61% | +5.06 pp | $878M | +12% |
| Q1 2025 | 84 | +3.7% | 42.55% | 3.78 pp | $785M | 8.2% |
| Q4 2024 | 81 | +3.8% | 46.33% | +25.35 pp | $854M | +121% |
| Q3 2024 | 78 | 8.2% | 20.98% | 7.82 pp | $387M | 27% |
| Q2 2024 | 85 | β | 28.80% | β | $531M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying GLPG stock.
Based on Q1 2026 13F filings, institutional ownership of Galapagos N.V. stands at 51.5%, held across 88 reporting institutions.
GILEAD SCIENCES, INC. is the largest reported institutional holder of GLPG, with approximately 16,707,477 shares worth $0.50B as of Q1 2026.
Yes β 5 widely-followed marquee investors appear among the top 25 institutional holders of GLPG, including SUSQUEHANNA INTERNATIONAL GROUP, LLP, Point72 Asset Management, L.P., RENAISSANCE TECHNOLOGIES LLC, CITADEL ADVISORS LLC, MILLENNIUM MANAGEMENT LLC.
Our composite Smart Money Score for GLPG is 52 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
16 institutions opened new positions in GLPG during Q1 2026, while 19 fully exited. 28 added to existing positions and 44 trimmed.
GLPG institutional ownership fell by 4.37 percentage points quarter-over-quarter, with a net change of -3 holders.
The top 10 institutions account for 92.6% of all reported 13F value in GLPG, and the top 25 account for 98.6%.
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.
Galapagos N.V. (GLPG) Institutional Ownership