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
July 6, 2026 NIOBW A 162,866 · · 162,866 Direct · Acquired (price as of 2026-10-05)
Aug. 18, 2025 NIOBW A 250,000 · · 250,000 Direct · Acquired (price as of 2026-10-05)
Dec. 23, 2024 NIOBW A 100,000 · · 100,000 Direct · Acquired (price as of 2026-10-05)
Feb. 15, 2024 NIOBW A 250,000 · · 250,000 Direct · Acquired (price as of 2026-10-05)
Nov. 15, 2023 NIOBW M 35,000 $3.93 $137,550 89,452 Direct +64.28% Acquired -83.7% (price as of 2026-10-05)
Nov. 15, 2023 NIOBW F 33,690 $4.09 $137,792 55,762 Direct -37.66% Disposed -84.4% (price as of 2026-10-05)
Nov. 15, 2023 NIOBW M 35,000 · · 0 Direct -100.00% Disposed (price as of 2026-10-05)
March 25, 2023 NIOBW A 40,000 · · 40,000 Direct · Acquired (price as of 2026-10-05)
Nov. 28, 2022 NIOBW M 300,000 $0.35 $105,000 665,042 Direct +82.18% Acquired 82.9% (price as of 2026-10-05)
Nov. 28, 2022 NIOBW F 120,513 $0.87 $104,846 544,529 Direct -18.12% Disposed -26.4% (price as of 2026-10-05)
Nov. 28, 2022 NIOBW M 300,000 · · 0 Direct -100.00% Disposed (price as of 2026-10-05)
Dec. 17, 2021 NIOBW A 300,000 · · 300,000 Direct · Acquired (price as of 2026-10-05)
March 10, 2021 NIOBW M 500,000 $0.53 $265,000 630,000 Direct +384.62% Acquired 20.8% (price as of 2026-10-05)
March 10, 2021 NIOBW F 264,958 $0.93 $246,411 365,042 Direct -42.06% Disposed -31.2% (price as of 2026-10-05)
March 10, 2021 NIOBW M 500,000 · · 0 Direct -100.00% Disposed (price as of 2026-10-05)
Dec. 14, 2020 NIOBW A 250,000 · · 250,000 Direct · Acquired (price as of 2026-10-05)
Nov. 15, 2018 NIOBW A 350,000 · · 350,000 Direct · Acquired (price as of 2026-10-05)
Nov. 9, 2017 NIOBW A 300,000 · · 300,000 Direct · Acquired (price as of 2026-10-05)
March 6, 2017 NIOBW A 400,000 · · 400,000 Direct · Acquired (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.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
July 6, 2026 NIOBW Employee Stock Option (Right to Buy) Common Shares (162,866) $4.74 July 6, 2031 162,866 Acquired
Aug. 18, 2025 NIOBW Employee Stock Option (Right to Buy) Common Shares (250,000) $4.35 Aug. 19, 2030 250,000 Acquired
Dec. 23, 2024 NIOBW Employee Stock Option (Right to Buy) Common Shares (100,000) $1.40 Dec. 21, 2029 100,000 Acquired
Feb. 15, 2024 NIOBW Employee Stock Option (right to buy) Common Shares (250,000) $2.99 Feb. 15, 2029 250,000 Acquired
Nov. 15, 2023 NIOBW Employee Stock Option (right to buy) Common Shares (35,000) · Nov. 15, 2023 35,000 Disposed
March 25, 2023 NIOBW Employee Stock Option (Right to Buy) Common Shares (40,000) $6.95 March 27, 2026 40,000 Acquired
Nov. 28, 2022 NIOBW Employee Stock Option (right to buy) Common Shares (300,000) · Nov. 30, 2022 300,000 Disposed
Dec. 17, 2021 NIOBW Employee Stock Option (Right to Buy) Common Shares (300,000) · Dec. 17, 2024 300,000 Acquired
March 10, 2021 NIOBW Employee Stock Option (right to buy) Common Shares (500,000) · March 17, 2021 500,000 Disposed
Dec. 14, 2020 NIOBW Employee Stock Option (Right to Buy) Common Shares (250,000) · Dec. 14, 2023 250,000 Acquired
Nov. 15, 2018 NIOBW Employee Stock Option (Right to Buy) Common Shares (350,000) · Nov. 15, 2023 350,000 Acquired
Nov. 9, 2017 NIOBW Employee Stock Option (Right to Buy) Common Shares (300,000) · Nov. 9, 2022 300,000 Acquired
March 6, 2017 NIOBW Employee Stock Option (Right to Buy) Common Shares (400,000) · March 6, 2022 400,000 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 6 holdings

07

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

DateTickerSecuritySharesOwnership
Dec. 2, 2016 NIOBW Employee Stock Option (Right to Buy)→ Common Shares · Direct
Oct. 28, 2016 NIOBW Common Shares 130,000 Direct
Oct. 28, 2016 NIOBW Employee Stock Option (Right to Buy)→ Common Shares (500,000) 500,000 Direct
Oct. 28, 2016 NIOBW Employee Stock Option (Right to Buy)→ Common Shares (250,000) 250,000 Direct
Oct. 28, 2016 NIOBW Employee Stock Option (Right to Buy)→ Common Shares (200,000) 200,000 Direct
Oct. 28, 2016 NIOBW Employee Stock Option (Right to Buy)→ Common Shares · Direct

Compensation (DEF 14A)

08

Matched by name from proxy statements (DEF 14A) — verify against the filing.

NIOBW

COO
Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2025 $280,000 · · $84,000 · · · $364,000
2024 $280,000 · · $427,500 · · · $707,500
2023 $265,000 $50,000 · $123,600 · · · $438,600

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.