Emergent BioSolutions Inc. (NYSE: EBS), an SEC filer in Pharmaceutical Preparations, closed at $5.91, -0.5%, on 2026-08-28, with a market cap of $305M as of 2026-08-27, a trailing P/E of 6.4, a return on equity of 10.5%, a net margin of 7.1% and 3-year sales growth of -12.7%. Institutional ownership, earnings history, filed financials and clinical trials are on the tabs below.
| # | Holder | Shares | Value | % of shares out | Δ QoQ |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 4,341,4624.3M | $36M | 8.39% | ADD 2% |
| 2 | STATE STREET CORP | 2,849,7012.8M | $24M | 5.50% | ADD 6% |
| 3 | DIMENSIONAL FUND ADVISORS LP | 2,757,1582.8M | $23M | 5.33% | ADD 22% |
| 4 | AMERICAN CENTURY COMPANIES INC | 2,425,7222.4M | $20M | 4.69% | — |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 2,257,9952.3M | $19M | 4.36% | NEW† |
| 6 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1,506,0751.5M | $13M | 2.91% | TRIM -7% |
| 7 | ACADIAN ASSET MANAGEMENT LLC | 1,381,6241.4M | $11M | 2.67% | ADD 24% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 1,272,9091.3M | $11M | 2.46% | — |
| 9 | PALISADE CAPITAL MANAGEMENT, LP | 1,201,3231.2M | $10M | 2.32% | TRIM -5% |
| 10 | VANGUARD PORTFOLIO MANAGEMENT LLC | 1,117,2781.1M | $9M | 2.16% | NEW† |
† NEW this big is usually a rename.
Ranked by each filer’s own reported value, not shares.
1 holder — The filer reported no value for this line, so it carries no dollar figure and is left out of the percentage and value columns.
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | +2,257,995 | $19M | OPEN |
| VANGUARD PORTFOLIO MANAGEMENT LLC | +1,117,278 | $9M | OPEN |
| Prosight Management, LP | +639,118 | $5M | OPEN |
| AQR CAPITAL MANAGEMENT LLC | +511,648 | $4M | ADD |
| DIMENSIONAL FUND ADVISORS LP | +504,553 | $4M | ADD |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| VANGUARD GROUP INC | −3,553,999 | $29M | CLOSE |
| OAK HILL ADVISORS LP | −2,500,000 | $21M | TRIM |
| Jain Global LLC | −743,707 | $6M | TRIM |
| MORGAN STANLEY | −413,160 | $3M | TRIM |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | −329,273 | $3M | TRIM |
Prior quarter split-rebased · 13Fs are long, US-listed only.
| Holder | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 1.9M | 1.8M | 4.4M | 4.3M | 4.3M | 4.3M | $36M |
| STATE STREET CORP | 2.0M | 1.7M | 1.7M | 2.4M | 2.7M | 2.8M | $24M |
| DIMENSIONAL FUND ADVISORS LP | 1.1M | 1.6M | 1.8M | 2.1M | 2.3M | 2.8M | $23M |
| AMERICAN CENTURY COMPANIES INC | 2.1M | 2.3M | 2.3M | 2.4M | 2.4M | 2.4M | $20M |
| VANGUARD CAPITAL MANAGEMENT LLC | — | — | — | — | — | 2.3M | $19M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.3M | 583K | 1.1M | 1.4M | 1.6M | 1.5M | $13M |
| ACADIAN ASSET MANAGEMENT LLC | 202K | 833K | 975K | 1.2M | 1.1M | 1.4M | $11M |
| GEODE CAPITAL MANAGEMENT, LLC | 591K | 612K | 1.3M | 1.3M | 1.3M | 1.3M | $11M |
| PALISADE CAPITAL MANAGEMENT, LP | 939K | 1.1M | 1.1M | 1.4M | 1.3M | 1.2M | $10M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | — | — | — | — | — | 1.1M | $9M |
Green = added, red = trimmed, grey = held; a dash is a quarter with no 13F on file — a gap, not an exit.
Breaks = no 13F that quarter.
Short interest has its own tab now — open SI →
SEC Form 13F · ~10,250 filers, 10y · long-only, US-listed, filed ≤45d after quarter-end.
SEC Schedule 13D/G XML · group aggregate.
