Company · Ownership research

Emergent BioSolutions Inc. EBS

CIK 0001367644 · CUSIP 29089Q105

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 29089Q105 (EBS), not CUSIP 29089Q905 (EBS), CUSIP 29089Q955 (EBS), and does not merge CUSIPs.

This page lists the top 20 of 194 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BlackRock, Inc. CIK 2012383 · View history	$39.53M 4,716,599 shares	0.00%	+375.14K(+8.60%)Added	SEC filing ↗ Aug 7, 2026	▾
02	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$25.78M 3,076,646 shares	0.00%	+319.49K(+11.60%)Added	SEC filing ↗ Aug 11, 2026	▾
03	STATE STREET CORP CIK 93751 · View history	$24.56M 2,929,238 shares	0.00%	+79.54K(+2.80%)Added	SEC filing ↗ Aug 7, 2026	▾
04	AMERICAN CENTURY COMPANIES INC CIK 748054 · View history	$23.22M 2,770,448 shares	0.01%	+344.73K(+14.20%)Added	SEC filing ↗ Aug 12, 2026	▾
05	VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · View history	$18.43M 2,198,839 shares	0.00%	-59.16K(-2.60%)Reduced	SEC filing ↗ Aug 13, 2026	▾
06	LSV ASSET MANAGEMENT CIK 1050470 · View history	$14.21M 1,695,851 shares	0.03%	+799.15K(+89.10%)Added	SEC filing ↗ Aug 6, 2026	▾
07	ACADIAN ASSET MANAGEMENT LLC CIK 916542 · View history	$11.26M 1,344,323 shares	0.01%	-37.30K(-2.70%)Reduced	SEC filing ↗ Aug 13, 2026	▾
08	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$11.21M 1,337,243 shares	0.00%	+64.33K(+5.10%)Added	SEC filing ↗ Aug 12, 2026	▾
09	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history	$10.06M 1,200,791 shares	0.00%	-305.28K(-20.30%)Reduced	SEC filing ↗ Aug 14, 2026	▾
10	OAK HILL ADVISORS LP CIK 1164688 · View history	$9.33M 1,113,338 shares	1.33%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2026	▾
11	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$8.98M 1,072,185 shares	0.01%	+540.18K(+101.50%)Added	SEC filing ↗ Aug 14, 2026	▾
12	Ancora Advisors LLC CIK 1446114 · View history	$8.95M 1,067,867 shares	0.17%	+658.60K(+160.90%)Added	SEC filing ↗ Aug 14, 2026	▾
13	AQR CAPITAL MANAGEMENT LLC CIK 1167557 · View history	$8.72M 1,041,151 shares	0.00%	+51.47K(+5.20%)Added	SEC filing ↗ Aug 14, 2026	▾
14	GOLDMAN SACHS GROUP INC CIK 886982 · View history	$8.68M 1,035,421 shares	0.00%	+223.86K(+27.60%)Added	SEC filing ↗ Aug 14, 2026	▾
15	VANGUARD PORTFOLIO MANAGEMENT LLC CIK 2100121 · View history	$8.63M 1,029,371 shares	0.00%	-87.91K(-7.90%)Reduced	SEC filing ↗ Aug 13, 2026	▾
16	D. E. Shaw & Co., Inc. CIK 1009207 · View history	$7.54M 900,108 shares	0.00%	-103.80K(-10.30%)Reduced	SEC filing ↗ Aug 14, 2026	▾
17	Russell Investments Group, Ltd. CIK 1692234 · View history	$7.20M 859,482 shares	0.01%	+523.58K(+155.90%)Added	SEC filing ↗ Aug 6, 2026	▾
18	FEDERATED HERMES, INC. CIK 1056288 · View history	$6.96M 831,125 shares	0.01%	+374.81K(+82.10%)Added	SEC filing ↗ Aug 12, 2026	▾
19	PRUDENTIAL FINANCIAL INC CIK 1137774 · View history	$6.75M 805,895 shares	0.01%	+357.08K(+79.60%)Added	SEC filing ↗ Aug 12, 2026	▾
20	Prescott Group Capital Management, L.L.C. CIK 1166152 · View history	$6.48M 772,771 shares	0.56%	0(0.00%)Unchanged	SEC filing ↗ Aug 7, 2026	▾

Showing 20 / 194 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

194

Cancelled or null records excluded

Disclosed shares

44,584,982

Not deduplicated across managers

Disclosed value

$373.62M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Emergent BioSolutions Inc. · Q2 2026

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.