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Public ownership evidence

Sera Prognostics, Inc. Class A Common Stock (SERA) Ownership Disclosures

Read SERA 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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2026-10-132026-10-12Inglis Tiffany Eul DavisS8,024Not reported

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

The displayed observation date is 2026-10-12 and its public availability date is 2026-10-13. Subtracting those calendar dates gives 1 day 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 0002091798-26-000010 ↗SEC 0002072324-26-000010 ↗SEC 0001891299-26-000016 ↗

Recent Form 4 activity

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2026-10-132026-10-12Inglis Tiffany Eul DavisS8,024Not reported
2026-09-112026-09-10Anderson Dyaarl Lee Jr.S1,800Not reported
2026-09-112026-09-10Lindgardt ZhenyaS7,022Not reported
2026-09-112026-09-10Inglis Tiffany Eul DavisS486Not reported
2026-09-112026-09-10Jackson BenjaminS2,190Not reported
2026-09-092026-09-08Lindgardt ZhenyaS20,139Not reported
2026-09-022026-08-31Gleason ScottA117,924Not reported
2026-09-022026-08-31Gleason ScottA169,624Not reported

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

Recent institutional filing receipts

Inspect all 32 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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XTX Topco Ltd2026-06-302026-08-1516,808$30,591None
Qube Research & Technologies Ltd2026-06-302026-08-1550,871$92,585None
AWM Investment Company, Inc.2026-06-302026-08-15207,382$377,435None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-1573,986$134,655None
Whetstone Capital Advisors, LLC2026-06-302026-08-153,306,889$6,018,538None
Vivo Capital, LLC2026-06-302026-08-151,650,440$3,003,801None
BRIDGEWAY CAPITAL MANAGEMENT, LLC2026-06-302026-08-1555,705$101,383None
CITADEL ADVISORS LLC2026-06-302026-08-1541,411$75,368None
BAKER BROS. ADVISORS LP2026-06-302026-08-155,498,170$10,006,669None
TWO SIGMA INVESTMENTS, LP2026-06-302026-08-1516,221$29,522None
GOLDMAN SACHS GROUP INC2026-06-302026-08-1532,541$59,225None
BARCLAYS PLC2026-06-302026-08-153,179$5,786None
VANGUARD CAPITAL MANAGEMENT LLC2026-06-302026-08-141,297,792$2,361,981None
Riverview Capital Advisers, LLC2026-06-302026-08-1412,669$23,058None
Vanguard Global Advisers, LLC2026-06-302026-08-1411,169$20,328None
UBS Group AG2026-06-302026-08-1440$73None
UBS Group AG2026-06-302026-08-1411,269$20,510None
BNP PARIBAS FINANCIAL MARKETS2026-06-302026-08-14186$339None
CAPTRUST FINANCIAL ADVISORS2026-06-302026-08-14535,755$975,074None
VANGUARD FIDUCIARY TRUST CO2026-06-302026-08-14170,908$311,053None
MORGAN STANLEY2026-06-302026-08-1450,972$92,769None
FMR LLC2026-06-302026-08-142,539$4,621None
NORTHERN TRUST CORP2026-06-302026-08-1468,595$124,843None
Cetera Investment Advisers2026-06-302026-08-1325,000$45,500None
Focus Partners Wealth2026-06-302026-08-1312,156$22,124None
GEODE CAPITAL MANAGEMENT, LLC2026-06-302026-08-1369,040$125,652None
GEODE CAPITAL MANAGEMENT, LLC2026-06-302026-08-13279,927$509,821None
JPMORGAN CHASE & CO2026-06-302026-08-13222$402None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-123$5None
DIMENSIONAL FUND ADVISORS LP2026-06-302026-08-122,332$4,244None
DIMENSIONAL FUND ADVISORS LP2026-06-302026-08-123,634$6,578None
DIMENSIONAL FUND ADVISORS LP2026-06-302026-08-1223,533$42,830None

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

XTX Topco Ltd ↗Qube Research & Technologies Ltd ↗AWM Investment Company, Inc. ↗MILLENNIUM MANAGEMENT LLC ↗Whetstone Capital Advisors, LLC ↗Vivo Capital, LLC ↗BRIDGEWAY CAPITAL MANAGEMENT, LLC ↗CITADEL ADVISORS LLC ↗BAKER BROS. ADVISORS LP ↗TWO SIGMA INVESTMENTS, 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.