James John Walker
Insider
First SEC filing: May 6, 2024 · Latest: June 5, 2026
Insider at
Insider transactions
0 buys (P)
18 sells (S)
Net: $-11,547,251
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 3, 2026 | NNE | S 10b5-1 | 25,000 | $17.77 | $444,250 | 635,000 Direct | -3.79% | Disposed | -12.1% (price as of 2026-10-02) |
| Sept. 1, 2026 | NNE | S 10b5-1 | 25,000 | $17.44 | $436,000 | 660,000 Direct | -3.65% | Disposed | -10.4% (price as of 2026-10-02) |
| June 3, 2026 | NNE | M | 200,000 | $3.00 | $600,000 | 780,000 Direct | +34.48% | Acquired | 420.7% (price as of 2026-10-02) |
| June 3, 2026 | NNE | M | 200,000 | · | · | 300,000 Direct | -40.00% | Disposed | (price as of 2026-10-02) |
| June 3, 2026 | NNE | M | 70,000 | $3.00 | $210,000 | 650,000 Direct | +12.07% | Acquired | 420.7% (price as of 2026-10-02) |
| June 3, 2026 | NNE | S 10b5-1 | 46,145 | $26.18 | $1,208,076 | 603,855 Direct | -7.10% | Disposed | -40.3% (price as of 2026-10-02) |
| June 3, 2026 | NNE | S 10b5-1 | 22,380 | $27.06 | $605,603 | 581,475 Direct | -3.71% | Disposed | -42.3% (price as of 2026-10-02) |
| June 3, 2026 | NNE | S 10b5-1 | 1,475 | $27.90 | $41,152 | 580,000 Direct | -0.25% | Disposed | -44.0% (price as of 2026-10-02) |
| June 3, 2026 | NNE | M | 28,688 | · | · | 608,688 Direct | +4.95% | Acquired | (price as of 2026-10-02) |
| June 3, 2026 | NNE | S 10b5-1 | 25,792 | $26.77 | $690,452 | 582,896 Direct | -4.24% | Disposed | -41.7% (price as of 2026-10-02) |
| June 3, 2026 | NNE | S 10b5-1 | 2,624 | $27.56 | $72,317 | 580,272 Direct | -0.45% | Disposed | -43.3% (price as of 2026-10-02) |
| June 3, 2026 | NNE | S 10b5-1 | 201 | $28.69 | $5,767 | 580,071 Direct | -0.03% | Disposed | -45.6% (price as of 2026-10-02) |
| June 3, 2026 | NNE | S 10b5-1 | 71 | $29.91 | $2,124 | 580,000 Direct | -0.01% | Disposed | -47.8% (price as of 2026-10-02) |
| June 3, 2026 | NNE | S 10b5-1 | 25,000 | $26.04 | $651,000 | 555,000 Direct | -4.31% | Disposed | -40.0% (price as of 2026-10-02) |
| June 3, 2026 | NNE | M | 70,000 | · | · | 430,000 Direct | -14.00% | Disposed | (price as of 2026-10-02) |
| June 3, 2026 | NNE | M | 28,688 | · | · | 146,398 Direct | -16.39% | Disposed | (price as of 2026-10-02) |
| Feb. 2, 2026 | NNE | M | 330,000 | $1.50 | $495,000 | 580,000 Direct | +132.00% | Acquired | 941.3% (price as of 2026-10-02) |
| Feb. 2, 2026 | NNE | M | 330,000 | · | · | 500,000 Direct | -39.76% | Disposed | (price as of 2026-10-02) |
| Jan. 28, 2026 | NNE | M | 170,000 | $1.50 | $255,000 | 445,000 Direct | +61.82% | Acquired | 941.3% (price as of 2026-10-02) |
| Jan. 28, 2026 | NNE | S 10b5-1 | 86,098 | $33.64 | $2,896,337 | 358,902 Direct | -19.35% | Disposed | -53.6% (price as of 2026-10-02) |
| Jan. 28, 2026 | NNE | S 10b5-1 | 76,171 | $34.37 | $2,617,997 | 282,731 Direct | -21.22% | Disposed | -54.6% (price as of 2026-10-02) |
| Jan. 28, 2026 | NNE | S 10b5-1 | 7,731 | $35.26 | $272,595 | 275,000 Direct | -2.73% | Disposed | -55.7% (price as of 2026-10-02) |
| Jan. 28, 2026 | NNE | S 10b5-1 | 13,581 | $33.66 | $457,136 | 261,419 Direct | -4.94% | Disposed | -53.6% (price as of 2026-10-02) |
| Jan. 28, 2026 | NNE | S 10b5-1 | 10,609 | $34.38 | $364,737 | 250,810 Direct | -4.06% | Disposed | -54.6% (price as of 2026-10-02) |
| Jan. 28, 2026 | NNE | S 10b5-1 | 810 | $35.27 | $28,569 | 250,000 Direct | -0.32% | Disposed | -55.7% (price as of 2026-10-02) |
| Jan. 28, 2026 | NNE | M | 170,000 | · | · | 830,000 Direct | -17.00% | Disposed | (price as of 2026-10-02) |
| Dec. 24, 2025 | NNE | S 10b5-1 | 22,459 | $30.03 | $674,444 | 277,541 Direct | -7.49% | Disposed | -48.0% (price as of 2026-10-02) |
| Dec. 24, 2025 | NNE | S 10b5-1 | 2,541 | $30.97 | $78,695 | 275,000 Direct | -0.92% | Disposed | -49.6% (price as of 2026-10-02) |
| Nov. 13, 2025 | NNE | A | 89,022 | · | · | 0 Direct | · | Acquired | (price as of 2026-10-02) |
| June 3, 2025 | NNE | A | 86,064 | · | · | 0 Direct | · | Acquired | (price as of 2026-10-02) |
| March 13, 2025 | NNE | A | 300,000 | · | · | 300,000 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.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| June 3, 2026 | NNE | Stock Options [F1] | Common Stock | $3.00 | · | 200,000 | Disposed |
| June 3, 2026 | NNE | Stock Options [F1] | Common Stock | $3.00 | · | 70,000 | Disposed |
| June 3, 2026 | NNE | Restricted Stock Units [F2] | Common Stock | $0.00 | · | 28,688 | Disposed |
| Feb. 2, 2026 | NNE | Stock Options [F1] | Common Stock | $1.50 | · | 330,000 | Disposed |
| Jan. 28, 2026 | NNE | Stock Options [F1] | Common Stock | $1.50 | · | 170,000 | Disposed |
| Nov. 13, 2025 | NNE | Restricted Stock Units [F1] | Common Stock | · | · | 89,022 | Acquired |
| June 3, 2025 | NNE | Restricted Stock Units [F1] | Common Stock | · | · | 86,064 | Acquired |
| March 13, 2025 | NNE | Stock Options (right to purchase) | Common Stock | $28.32 | · | 300,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.