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NWN · Northwest Natural Holding Co · Holdings

Track NWN — free
Market Cap
$2.04B
Shares
42.09M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 318
Total Value: $1,683,252,075
Total Shares: 34,310,086
Showing 1–100 of 319 holdings by value · page 1 of 4

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 318 13F filers · Δ vs Mar 31, 2026
Top Holder
19.6%
Sep 2023 → Jun 2026 · range 19.2% – 22.8%
+0.3 pts
Top 5
42.4%
Sep 2023 → Jun 2026 · range 41.1% – 53.9%
+1.3 pts
Top 10
55.4%
Sep 2023 → Jun 2026 · range 53.7% – 66.3%
+1.8 pts
HHI
590
Sep 2023 → Jun 2026 · range 571 – 893
Broadly held+20

Quarterly Activity

vs Mar 31, 2026
New
35
Increased
130
Decreased
95
Sold Out
47
Unchanged
58
Holder count: -12
Institutional value: -4.7%
Shares held: +3.4%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 319
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1733998 CUSIP 66765N105 13F (30d) 73 filings 71 filers Visit website Investor relations