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Public ownership evidence

Repligen Corp (RGEN) Ownership Disclosures

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

As of 2026-11-07T14:03:26.246Z

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2026-10-082026-10-06Douglass Brian RobbA700Not reported

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

The displayed observation date is 2026-10-06 and its public availability date is 2026-10-08. Subtracting those calendar dates gives 2 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 A: a award. An award is an acquisition but is not an open-market purchase. A purchase-following rule must not count it as code P.

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 0001628280-26-065462 ↗SEC 0001628280-26-065462 ↗SEC 0001628280-26-065238 ↗

Recent Form 4 activity

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2026-10-082026-10-06Douglass Brian RobbA700Not reported
2026-10-082026-10-06Douglass Brian RobbA675Not reported
2026-10-062026-10-05Loeillot OlivierS4,202Not reported
2026-10-062026-10-05Loeillot OlivierS1,333Not reported
2026-09-252026-09-24Loeillot OlivierS4,542Not reported
2026-09-252026-09-24Loeillot OlivierS8,404Not reported
2026-09-222026-09-21Loeillot OlivierS5,426Not reported
2026-09-082026-09-04Loeillot OlivierS3,035Not reported
2026-09-032026-03-05Hughes ViolettaA2,466Not reported
2026-08-222026-08-20Loeillot OlivierS5,426Not 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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Cornerstone Financial Management LLC2026-06-302026-08-298$1,092None
Cornerstone Financial Management LLC2025-12-312026-08-2910$1,639None
OPTIMIZE FINANCIAL INC.2026-06-302026-08-283,681$502,236None
Advisors Asset Management, Inc.2021-12-312026-08-2824,592$6,512,945None
Advisors Asset Management, Inc.2022-12-312026-08-2815,995$2,708,113None
Advisors Asset Management, Inc.2020-06-302026-08-2826$3,214None
Advisors Asset Management, Inc.2020-06-302026-08-2818,790$2,322,632None
Advisors Asset Management, Inc.2022-06-302026-08-2820,519$3,332,000None
Advisors Asset Management, Inc.2021-09-302026-08-2825,560$7,387,000None
Corient Private Wealth LP2026-06-302026-08-2811,319$1,544,365None
Principia Wealth Advisory, LLC2026-06-302026-08-275$682None
Principia Wealth Advisory, LLC2026-03-312026-08-272$236None
Advisors Asset Management, Inc.2024-03-312026-08-2713,827$2,543,062None
Advisors Asset Management, Inc.2025-03-312026-08-2711,138$1,417,199None
Advisors Asset Management, Inc.2022-09-302026-08-2720,244$3,788,000None
Advisors Asset Management, Inc.2020-12-312026-08-2725,464$4,880,000None
Advisors Asset Management, Inc.2022-03-312026-08-2722,626$4,255,724None
Advisors Asset Management, Inc.2023-06-302026-08-2712,222$1,728,924None
Advisors Asset Management, Inc.2023-09-302026-08-2712,550$1,995,576None
Advisors Asset Management, Inc.2023-03-312026-08-2715,174$2,554,695None
Advisors Asset Management, Inc.2021-03-312026-08-2728,296$5,501,025None
Advisors Asset Management, Inc.2021-06-302026-08-2728,239$5,637,000None
Advisors Asset Management, Inc.2020-09-302026-08-2722,643$3,340,748None
Advisors Asset Management, Inc.2025-09-302026-08-278,610$1,150,899None
Advisors Asset Management, Inc.2023-12-312026-08-2711,371$2,044,506None
Advisors Asset Management, Inc.2019-12-312026-08-2626$2,405None
Advisors Asset Management, Inc.2019-12-312026-08-2610,774$996,595None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-03-312026-08-262,500$294,550None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-268,600$1,173,384None
Advisors Asset Management, Inc.2025-06-302026-08-258,826$1,097,778None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2560,112$8,201,681None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-258,201,681$60,112,000None
Advisors Asset Management, Inc.2024-09-302026-08-229,091$1,352,923None
Advisors Asset Management, Inc.2024-06-302026-08-229,193$1,158,870None
Advisors Asset Management, Inc.2024-12-312026-08-2210,760$1,548,794None
Advisors Asset Management, Inc.2025-12-312026-08-224,251$696,569None
Advisors Asset Management, Inc.2020-03-312026-08-2214,497$1,399,540None
Assenagon Asset Management S.A.2026-06-302026-08-2270,995$9,686,558None
BOUSSARD & GAVAUDAN GESTION SAS2026-06-302026-08-2011,145$11,412,082None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-202,185$298,122None
Advisors Asset Management, Inc.2019-03-312026-08-1926$1,536None
Advisors Asset Management, Inc.2019-09-302026-08-1926$1,994None
Advisors Asset Management, Inc.2019-09-302026-08-197,568$580,390None
Advisors Asset Management, Inc.2019-06-302026-08-1926$2,235None
Advisors Asset Management, Inc.2019-06-302026-08-192,055$176,627None
Ensign Peak Advisors, Inc2026-03-312026-08-1976,020$8,956,676None
Ensign Peak Advisors, Inc2025-12-312026-08-19101,209$16,584,107None
Ensign Peak Advisors, Inc2025-09-302026-08-19115,766$15,474,441None
NORTH STAR ASSET MANAGEMENT INC2026-06-302026-08-1977,561$10,582,423None
Corient Private Wealth LP2026-06-302026-08-1811,286$1,539,871None

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

Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗OPTIMIZE FINANCIAL 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. ↗Corient Private Wealth LP ↗

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.