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Public ownership evidence

Northwest Natural Holding Company (NWN) Ownership Disclosures

Read NWN 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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2026-10-212026-10-19ANDERSON DAVID HUGOS1,500Not reported

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

The displayed observation date is 2026-10-19 and its public availability date is 2026-10-21. 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 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 0001733998-26-000149 ↗SEC 0001733998-26-000143 ↗SEC 0001733998-26-000135 ↗

Recent Form 4 activity

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2026-10-212026-10-19ANDERSON DAVID HUGOS1,500Not reported
2026-09-212026-09-18ANDERSON DAVID HUGOS1,500Not reported
2026-08-192026-08-18ANDERSON DAVID HUGOS1,500Not 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 LLC2026-06-302026-08-2926$1,276None
Cornerstone Financial Management LLC2026-03-312026-08-2916$852None
Advisors Asset Management, Inc.2025-03-312026-08-27133,192$5,689,962None
Advisors Asset Management, Inc.2025-09-302026-08-2784,282$3,786,790None
Groupe la Francaise2026-06-302026-08-268,095$397,141None
Advisors Asset Management, Inc.2025-06-302026-08-25131,887$5,238,552None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2546,271$2,270,055None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-252,270,055$46,271,000None
Advisors Asset Management, Inc.2024-09-302026-08-22104,114$4,249,933None
Advisors Asset Management, Inc.2024-06-302026-08-2242,769$1,544,389None
Advisors Asset Management, Inc.2024-12-312026-08-22133,108$5,265,752None
Advisors Asset Management, Inc.2025-12-312026-08-2230,993$1,448,613None
Archer Investment Corp2026-06-302026-08-20203$9,959None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2011,616$569,874None
Fulcrum Asset Management LLP2026-06-302026-08-196$300None
CAPSTONE INVESTMENT ADVISORS, LLC2026-06-302026-08-189,968$489,030None
Jefferies Financial Group Inc.2026-06-302026-08-1812,795$627,723None
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO2026-06-302026-08-18926$45,430None
Oakmont Investment Advisors, Inc.2026-06-302026-08-156,500$318,890None
Oakmont Investment Advisors, Inc.2026-03-312026-08-156,000$319,320None
Oakmont Investment Advisors, Inc.2025-12-312026-08-156,000$280,440None
SEI INVESTMENTS CO2026-06-302026-08-1527,735$1,360,679None
SEI INVESTMENTS CO2026-06-302026-08-151,023$50,180None
Federation des caisses Desjardins du Quebec2026-06-302026-08-15260$12,753None
Federation des caisses Desjardins du Quebec2026-06-302026-08-15130$6,378None
Federation des caisses Desjardins du Quebec2026-06-302026-08-1510,088$494,917None
JPL Wealth Management, LLC2026-06-302026-08-1553$2,601None
Advisors Asset Management, Inc.2026-06-302026-08-1517,574$862,180None
Ilex Capital Partners (UK) LLP2026-06-302026-08-1533,564$1,646,650None
Quarry LP2026-06-302026-08-15148$7,260None
NFSG Corp2026-06-302026-08-15250$12,265None
CSM Advisors, LLC2026-06-302026-08-15131,465$6,450,000None
XTX Topco Ltd2026-06-302026-08-1570,764$3,471,682None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15569,197$27,924,805None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15569,197$27,924,805None
Qube Research & Technologies Ltd2026-06-302026-08-15162,486$7,971,563None
OSAIC HOLDINGS, INC.2026-06-302026-08-1543$2,110None
OSAIC HOLDINGS, INC.2026-06-302026-08-151,990$97,676None
QUADRANT CAPITAL GROUP LLC2026-06-302026-08-159,619$471,908None
Squarepoint Ops LLC2026-06-302026-08-1526,171$1,283,949None
Trexquant Investment LP2026-06-302026-08-1529,346$1,439,715None
MetLife Investment Management, LLC2026-06-302026-08-15374,347$18,365,464None
Engineers Gate Manager LP2026-06-302026-08-1527,949$1,371,178None
JANE STREET GROUP, LLC2026-06-302026-08-154,500$220,770Call
State of Tennessee, Department of Treasury2026-06-302026-08-1517,026$835,296None
PDT Partners, LLC2026-06-302026-08-1517,812$873,857None
Legal & General Group Plc2026-06-302026-08-15142,194$6,976,037None
Legal & General Group Plc2026-06-302026-08-159,285$455,522None
Legal & General Group Plc2026-06-302026-08-1595,247$4,672,817None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1511,200$549,472Call

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

Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Groupe la Francaise ↗Advisors Asset Management, Inc. ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗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.