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Public ownership evidence

Emergent Biosolutions, Inc. (EBS) Ownership Disclosures

Read EBS insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-14T02:54:47.600Z

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2026-10-072026-10-07DeGolyer Donald WS17,800Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-10-07 and its public availability date is 2026-10-07. Subtracting those calendar dates gives 0 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0001583098-26-000008 ↗SEC 0001961994-26-000029 ↗13F 0001464811-26-000009 ↗

Recent Form 4 activity

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2026-10-072026-10-07DeGolyer Donald WS17,800Not reported
2026-10-052026-10-01Williams Paul AnthonyS3,000Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

Inspect all 50 displayed rows: Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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B. Riley Wealth Advisors, Inc.2025-03-312026-08-2941,800$203,148None
Advisors Asset Management, Inc.2021-12-312026-08-289,634$418,790None
Advisors Asset Management, Inc.2022-12-312026-08-283,716$43,886None
Advisors Asset Management, Inc.2020-06-302026-08-281,371$108,419None
Advisors Asset Management, Inc.2022-06-302026-08-286,725$209,000None
Advisors Asset Management, Inc.2021-09-302026-08-288,659$434,000None
Advisors Asset Management, Inc.2022-09-302026-08-276,526$137,000None
Advisors Asset Management, Inc.2020-12-312026-08-275,408$485,000None
Advisors Asset Management, Inc.2022-03-312026-08-279,204$377,916None
Advisors Asset Management, Inc.2023-06-302026-08-271,818$13,362None
Advisors Asset Management, Inc.2023-09-302026-08-271,493$5,076None
Advisors Asset Management, Inc.2023-03-312026-08-273,560$36,882None
Advisors Asset Management, Inc.2021-03-312026-08-276,906$641,636None
Advisors Asset Management, Inc.2021-06-302026-08-277,978$503,000None
Advisors Asset Management, Inc.2020-09-302026-08-272,721$281,161None
Advisors Asset Management, Inc.2019-12-312026-08-26270$14,567None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25717$6,008None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-256,008$717,000None
Advisors Asset Management, Inc.2020-03-312026-08-2262$3,587None
Assenagon Asset Management S.A.2026-06-302026-08-2256,455$473,093None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2026,419$221,391None
Advisors Asset Management, Inc.2019-03-312026-08-19267$13,489None
Advisors Asset Management, Inc.2019-09-302026-08-19280$14,638None
Advisors Asset Management, Inc.2019-06-302026-08-19282$13,623None
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO2026-06-302026-08-184,343$36,394None
EFG International AG2026-06-302026-08-151,500$12,570None
EFG International AG2026-06-302026-08-15420$3,522None
Graham Capital Management, L.P.2026-06-302026-08-1521,592$180,941None
SEI INVESTMENTS CO2026-06-302026-08-1516,546$138,655None
SEI INVESTMENTS CO2026-06-302026-08-1511$90None
JPL Wealth Management, LLC2026-06-302026-08-158$68None
Rafferty Asset Management, LLC2026-06-302026-08-1547,430$397,463None
Susquehanna Portfolio Strategies, LLC2026-06-302026-08-1563,201$529,624None
Basecamp Wealth Advisors LLC2026-06-302026-08-15151$1,265None
Quarry LP2026-06-302026-08-15254$2,129None
Integrated Quantitative Investments LLC2026-06-302026-08-1538,501$322,638None
XTX Topco Ltd2026-06-302026-08-1514,674$122,968None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-151,200,791$10,062,629None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-151,200,791$10,062,629None
ExodusPoint Capital Management, LP2026-06-302026-08-1543,882$367,731None
OSAIC HOLDINGS, INC.2026-06-302026-08-15200$1,676None
OSAIC HOLDINGS, INC.2026-06-302026-08-1511,981$100,394None
Squarepoint Ops LLC2026-06-302026-08-15148,016$1,240,374None
Man Group plc2026-06-302026-08-1566,527$557,496None
Trexquant Investment LP2026-06-302026-08-15447,858$3,753,050None
MetLife Investment Management, LLC2026-06-302026-08-1529,933$250,839None
JANE STREET GROUP, LLC2026-06-302026-08-1565,900$552,242Call
Legal & General Group Plc2026-06-302026-08-155,214$43,693None
HRT FINANCIAL LP2026-06-302026-08-1555,443$464,000None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-15288,800$2,420,144Call

90-day public filing window, up to 50 source positions.

B. Riley Wealth Advisors, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.