Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 5 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. 18, 2025 NIOBW A 60,000 · · 60,000 Direct · Acquired (price as of 2026-10-02)
Dec. 23, 2024 NIOBW A 50,000 · · 50,000 Direct · Acquired (price as of 2026-10-02)
Feb. 15, 2024 NIOBW A 50,000 · · 50,000 Direct · Acquired (price as of 2026-10-02)
March 25, 2023 NIOBW A 40,000 · · 40,000 Direct · Acquired (price as of 2026-10-02)
May 30, 2022 NIOBW A 500,000 · · 500,000 Direct · Acquired (price as of 2026-10-02)

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
Aug. 18, 2025 NIOBW Director Stock Option (Right to Buy) Common Shares (60,000) $4.35 Aug. 19, 2030 60,000 Acquired
Dec. 23, 2024 NIOBW Director Stock Option (Right to Buy) Common Shares (50,000) $1.40 Dec. 21, 2029 50,000 Acquired
Feb. 15, 2024 NIOBW Director Stock Option (Right to Buy) Common Shares (50,000) $2.99 Feb. 15, 2029 50,000 Acquired
March 25, 2023 NIOBW Director Stock Option (Right to Buy) Common Shares (40,000) $6.95 March 27, 2026 40,000 Acquired
May 30, 2022 NIOBW Director Stock Option (Right to Buy) Common Shares (500,000) · May 30, 2025 500,000 Acquired

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