Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in EBS held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 4.3M | $36.0M | +2.1% | 8.406% | 0.00% |
| 2 | STATE STREET CORP | 2.8M | $23.7M | +5.7% | 5.518% | 0.00% |
| 3 | DIMENSIONAL FUND ADVISORS LP | 2.8M | $22.9M | +22.4% | 5.339% | 0.00% |
| 4 | AMERICAN CENTURY COMPANIES INC | 2.4M | $20.1M | -0.6% | 4.697% | 0.01% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 2.3M | $18.7M | — | 4.372% | 0.00% |
| 6 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.5M | $12.5M | -7.0% | 2.916% | 0.00% |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 1.3M | $10.6M | +1.8% | 2.465% | 0.00% |
| 8 | PALISADE CAPITAL MANAGEMENT LLC/NJ | 1.2M | $10.0M | -5.1% | 2.326% | 0.33% |
| 9 | VANGUARD PORTFOLIO MANAGEMENT LLC | 1.1M | $9.3M | — | 2.163% | 0.00% |
| 10 | OAK HILL ADVISORS LP | 1.1M | $9.2M | -69.2% | 2.156% | 1.05% |
| 11 | D. E. Shaw & Co., Inc. | 1.0M | $8.3M | +38.8% | 1.944% | 0.01% |
| 12 | AQR CAPITAL MANAGEMENT LLC | 990K | $8.2M | +107.0% | 1.916% | 0.00% |
| 13 | GOLDMAN SACHS GROUP INC | 812K | $6.7M | +9.7% | 1.571% | 0.00% |
| 14 | PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C. | 773K | $6.4M | 0.0% | 1.496% | 0.64% |
| 15 | MORGAN STANLEY | 745K | $6.2M | -35.7% | 1.442% | 0.00% |
| 16 | RENAISSANCE TECHNOLOGIES LLC | 656K | $5.4M | +13.7% | 1.270% | 0.01% |
| 17 | Connor, Clark & Lunn Investment Management Ltd. | 648K | $5.4M | -16.7% | 1.256% | 0.01% |
| 18 | Prosight Management, LP | 639K | $5.3M | — | 1.238% | 0.87% |
| 19 | NORTHERN TRUST CORP | 601K | $5.0M | +3.5% | 1.164% | 0.00% |
| 20 | MARSHALL WACE, LLP | 578K | $4.8M | -22.3% | 1.119% | 0.01% |
| 21 | TWO SIGMA INVESTMENTS, LP | 577K | $4.8M | +123.3% | 1.117% | 0.00% |
| 22 | MILLENNIUM MANAGEMENT LLC | 532K | $4.4M | +123.8% | 1.030% | 0.00% |
| 23 | Trexquant Investment LP | 524K | $4.4M | +73.8% | 1.015% | 0.04% |
| 24 | NEW YORK STATE COMMON RETIREMENT FUND | 514K | $4.3M | -1.6% | 0.995% | 0.01% |
| 25 | Allianz Asset Management GmbH | 470K | $3.9M | +61.5% | 0.909% | 0.00% |
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 EBS — a direct measure of their conviction.
Filings activity in EBS 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 | 182 | +1.7% | 77.33% | 40.54 pp | $332M | 34% |
| Q4 2025 | 179 | +7.8% | 117.87% | +39.88 pp | $506M | +51% |
| Q3 2025 | 166 | +3.1% | 77.99% | +25.80 pp | $335M | +49% |
| Q2 2025 | 161 | +1.3% | 52.19% | +14.51 pp | $224M | +39% |
| Q1 2025 | 159 | +2.6% | 37.68% | 87.30 pp | $162M | 70% |
| Q4 2024 | 155 | +14% | 124.98% | +65.54 pp | $537M | +110% |
| Q3 2024 | 136 | 3.5% | 59.44% | 140.55 pp | $255M | 76% |
| Q2 2024 | 141 | — | 199.99% | — | $1.05B | — |
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 EBS stock.
Based on Q1 2026 13F filings, institutional ownership of Emergent BioSolutions Inc. stands at 77.3%, held across 182 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of EBS, with approximately 4,341,462 shares worth $0.04B as of Q1 2026.
Yes — 3 widely-followed marquee investors appear among the top 25 institutional holders of EBS, including RENAISSANCE TECHNOLOGIES LLC, TWO SIGMA INVESTMENTS, LP, MILLENNIUM MANAGEMENT LLC.
Our composite Smart Money Score for EBS is 52 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
35 institutions opened new positions in EBS during Q1 2026, while 32 fully exited. 26 added to existing positions and 119 trimmed.
EBS institutional ownership fell by 40.54 percentage points quarter-over-quarter, with a net change of +3 holders.
The top 10 institutions account for 52.1% of all reported 13F value in EBS, and the top 25 account for 77.2%.
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.
Emergent BioSolutions Inc. (EBS) Institutional Ownership