Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 19 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

No open-market trades on record; showing all filings.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Aug. 6, 2026 NWN I 10b5-1 248 $50.77 $12,591 11,217 Indirect +2.26% Acquired -7.8% (price as of 2026-10-05)
May 7, 2026 NWN I 10b5-1 250 $50.19 $12,548 10,861 Indirect +2.36% Acquired -6.7% (price as of 2026-10-05)
March 2, 2026 NWN I 10b5-1 240 $52.59 $12,622 10,611 Indirect +2.31% Acquired -11.0% (price as of 2026-10-05)
Nov. 6, 2025 NWN I 10b5-1 609 $46.59 $28,373 10,172 Indirect +6.37% Acquired 0.5% (price as of 2026-10-05)
Aug. 6, 2025 NWN I 10b5-1 712 $39.72 $28,281 9,458 Indirect +8.14% Acquired 17.9% (price as of 2026-10-05)
May 7, 2025 NWN I 10b5-1 644 $43.95 $28,304 8,650 Indirect +8.04% Acquired 6.5% (price as of 2026-10-05)
March 3, 2025 NWN I 10b5-1 670 $42.37 $28,388 8,006 Indirect +9.13% Acquired 10.5% (price as of 2026-10-05)
Nov. 20, 2024 NWN I 10b5-1 646 $42.12 $27,210 7,249 Indirect +9.78% Acquired 11.2% (price as of 2026-10-05)
Aug. 5, 2024 NWN I 10b5-1 713 $38.09 $27,158 6,453 Indirect +12.42% Acquired 22.9% (price as of 2026-10-05)
May 7, 2024 NWN I 10b5-1 708 $38.37 $27,166 5,676 Indirect +14.25% Acquired 22.0% (price as of 2026-10-05)
Feb. 26, 2024 NWN I 10b5-1 744 $36.60 $27,230 4,969 Indirect +17.61% Acquired 27.9% (price as of 2026-10-05)
Nov. 6, 2023 NWN I 10b5-1 659 $37.75 $24,877 4,123 Indirect +19.02% Acquired 24.0% (price as of 2026-10-05)
Aug. 4, 2023 NWN I 10b5-1 618 $41.33 $25,542 3,430 Indirect +21.98% Acquired 13.3% (price as of 2026-10-05)
May 5, 2023 NWN I 10b5-1 474 $47.05 $22,302 2,787 Indirect +20.49% Acquired -0.5% (price as of 2026-10-05)
Feb. 27, 2023 NWN I 469 $47.75 $22,395 2,313 Indirect +25.43% Acquired -1.9% (price as of 2026-10-05)
Nov. 9, 2022 NWN I 492 $45.40 $22,337 1,812 Indirect +37.27% Acquired 3.1% (price as of 2026-10-05)
Aug. 5, 2022 NWN I 425 $52.56 $22,338 1,312 Indirect +47.91% Acquired -10.9% (price as of 2026-10-05)
May 5, 2022 NWN I 455 $49.02 $22,304 883 Indirect +106.31% Acquired -4.5% (price as of 2026-10-05)
Feb. 28, 2022 NWN I 428 $52.01 $22,260 428 Indirect · Acquired -10.0% (price as of 2026-10-05)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Initial ownership (Form 3) 1 holding

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
Jan. 3, 2022 NWN No securities are beneficially owned 0 Direct