Charles J. Prober
Insider
First SEC filing: June 29, 2022 · Latest: June 2, 2026
Insider at
Insider transactions
0 buys (P)
12 sells (S)
Net: $-5,300,174
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. 14, 2026 | LIF | M 10b5-1 | 7,930 | $11.18 | $88,657 | 117,860 Direct | +7.21% | Acquired | 270.1% (price as of 2026-10-06) |
| Sept. 14, 2026 | LIF | S 10b5-1 | 7,930 | $42.12 | $334,012 | 109,930 Direct | -6.73% | Disposed | -1.8% (price as of 2026-10-06) |
| Sept. 14, 2026 | LIF | M 10b5-1 | 7,930 | · | · | 15,860 Direct | -33.33% | Disposed | (price as of 2026-10-06) |
| Aug. 13, 2026 | LIF | M 10b5-1 | 7,930 | $11.18 | $88,657 | 117,860 Direct | +7.21% | Acquired | 270.1% (price as of 2026-10-06) |
| Aug. 13, 2026 | LIF | S 10b5-1 | 7,930 | $48.59 | $385,319 | 109,930 Direct | -6.73% | Disposed | -14.8% (price as of 2026-10-06) |
| Aug. 13, 2026 | LIF | M 10b5-1 | 7,930 | · | · | 23,790 Direct | -25.00% | Disposed | (price as of 2026-10-06) |
| Aug. 1, 2026 | LIF | A | 19 | · | · | 109,930 Direct | +0.02% | Acquired | (price as of 2026-10-06) |
| July 31, 2026 | NTGR | F | 4,598 | $24.16 | $111,088 | 426,294 Direct | -1.07% | Disposed | -4.6% (price as of 2026-10-06) |
| July 13, 2026 | LIF | M 10b5-1 | 7,930 | · | · | 31,720 Direct | -20.00% | Disposed | (price as of 2026-10-06) |
| July 13, 2026 | LIF | S 10b5-1 | 7,930 | $53.05 | $420,686 | 109,911 Direct | -6.73% | Disposed | -22.0% (price as of 2026-10-06) |
| July 13, 2026 | LIF | M 10b5-1 | 7,930 | $11.18 | $88,657 | 117,841 Direct | +7.21% | Acquired | 270.1% (price as of 2026-10-06) |
| June 15, 2026 | LIF | M 10b5-1 | 7,930 | · | · | 39,650 Direct | -16.67% | Disposed | (price as of 2026-10-06) |
| June 15, 2026 | LIF | S 10b5-1 | 7,930 | $46.07 | $365,335 | 109,911 Direct | -6.73% | Disposed | -10.2% (price as of 2026-10-06) |
| June 15, 2026 | LIF | M 10b5-1 | 7,930 | $11.18 | $88,657 | 117,841 Direct | +7.21% | Acquired | 270.1% (price as of 2026-10-06) |
| May 29, 2026 | LIF | A | 4,455 | · | · | 109,911 Direct | +4.22% | Acquired | (price as of 2026-10-06) |
| May 13, 2026 | LIF | M 10b5-1 | 7,930 | $11.18 | $88,657 | 113,386 Direct | +7.52% | Acquired | 270.1% (price as of 2026-10-06) |
| May 13, 2026 | LIF | S 10b5-1 | 7,930 | $40.44 | $320,689 | 105,456 Direct | -6.99% | Disposed | 2.3% (price as of 2026-10-06) |
| May 13, 2026 | LIF | M 10b5-1 | 7,930 | · | · | 47,580 Direct | -14.29% | Disposed | (price as of 2026-10-06) |
| April 30, 2026 | NTGR | F | 18,394 | $25.27 | $464,816 | 430,892 Direct | -4.09% | Disposed | -8.8% (price as of 2026-10-06) |
| April 13, 2026 | LIF | M 10b5-1 | 7,930 | $11.18 | $88,657 | 113,386 Direct | +7.52% | Acquired | 270.1% (price as of 2026-10-06) |
| April 13, 2026 | LIF | S 10b5-1 | 7,930 | $37.27 | $295,551 | 105,456 Direct | -6.99% | Disposed | 11.0% (price as of 2026-10-06) |
| April 13, 2026 | LIF | M 10b5-1 | 7,930 | · | · | 55,510 Direct | -12.50% | Disposed | (price as of 2026-10-06) |
| April 2, 2026 | NTGR | A | 114,732 | · | · | 448,272 Direct | +34.40% | Acquired | (price as of 2026-10-06) |
| April 2, 2026 | NTGR | A | 114,732 | · | · | 114,732 Direct | · | Acquired | (price as of 2026-10-06) |
| March 13, 2026 | LIF | M 10b5-1 | 7,930 | $11.18 | $88,657 | 113,386 Direct | +7.52% | Acquired | 270.1% (price as of 2026-10-06) |
| March 13, 2026 | LIF | S 10b5-1 | 7,930 | $41.40 | $328,302 | 105,456 Direct | -6.99% | Disposed | -0.1% (price as of 2026-10-06) |
| March 13, 2026 | LIF | M 10b5-1 | 7,930 | · | · | 63,440 Direct | -11.11% | Disposed | (price as of 2026-10-06) |
| Feb. 13, 2026 | LIF | M 10b5-1 | 7,930 | $11.18 | $88,657 | 113,386 Direct | +7.52% | Acquired | 270.1% (price as of 2026-10-06) |
| Feb. 13, 2026 | LIF | S 10b5-1 | 7,930 | $49.02 | $388,729 | 105,456 Direct | -6.99% | Disposed | -15.6% (price as of 2026-10-06) |
| Feb. 13, 2026 | LIF | M 10b5-1 | 7,930 | · | · | 71,370 Direct | -10.00% | Disposed | (price as of 2026-10-06) |
| Jan. 31, 2026 | NTGR | M | 157,714 | · | · | 767,750 Direct | +25.85% | Acquired | (price as of 2026-10-06) |
| Jan. 31, 2026 | NTGR | F | 85,087 | $20.91 | $1,779,169 | 682,663 Direct | -11.08% | Disposed | 10.2% (price as of 2026-10-06) |
| Jan. 31, 2026 | NTGR | F | 61,790 | $20.91 | $1,292,029 | 620,873 Direct | -9.05% | Disposed | 10.2% (price as of 2026-10-06) |
| Jan. 31, 2026 | NTGR | M | 157,714 | · | · | 151,940 Direct | -50.93% | Disposed | (price as of 2026-10-06) |
| Jan. 13, 2026 | LIF | M 10b5-1 | 7,930 | $11.18 | $88,657 | 113,386 Direct | +7.52% | Acquired | 270.1% (price as of 2026-10-06) |
| Jan. 13, 2026 | LIF | S 10b5-1 | 7,930 | $61.98 | $491,501 | 105,456 Direct | -6.99% | Disposed | -33.2% (price as of 2026-10-06) |
| Jan. 13, 2026 | LIF | M | 7,930 | · | · | 79,300 Direct | -9.09% | Disposed | (price as of 2026-10-06) |
| Dec. 15, 2025 | LIF | M 10b5-1 | 7,930 | $11.18 | $88,657 | 113,386 Direct | +7.52% | Acquired | 270.1% (price as of 2026-10-06) |
| Dec. 15, 2025 | LIF | S 10b5-1 | 7,930 | $68.30 | $541,619 | 105,456 Direct | -6.99% | Disposed | -39.4% (price as of 2026-10-06) |
| Dec. 15, 2025 | LIF | M 10b5-1 | 7,930 | · | · | 87,230 Direct | -8.33% | Disposed | (price as of 2026-10-06) |
| Nov. 13, 2025 | LIF | M 10b5-1 | 7,930 | $11.18 | $88,657 | 113,386 Direct | +7.52% | Acquired | 270.1% (price as of 2026-10-06) |
| Nov. 13, 2025 | LIF | S 10b5-1 | 7,930 | $76.93 | $610,055 | 105,456 Direct | -6.99% | Disposed | -46.2% (price as of 2026-10-06) |
| Nov. 13, 2025 | LIF | M 10b5-1 | 7,930 | · | · | 95,160 Direct | -7.69% | Disposed | (price as of 2026-10-06) |
| Oct. 13, 2025 | LIF | M 10b5-1 | 7,930 | $11.18 | $88,657 | 113,386 Direct | +7.52% | Acquired | 270.1% (price as of 2026-10-06) |
| Oct. 13, 2025 | LIF | S 10b5-1 | 7,930 | $103.20 | $818,376 | 105,456 Direct | -6.99% | Disposed | -59.9% (price as of 2026-10-06) |
| Oct. 13, 2025 | LIF | M 10b5-1 | 7,930 | · | · | 103,090 Direct | -7.14% | Disposed | (price as of 2026-10-06) |
| Sept. 15, 2025 | LIF | M 10b5-1 | 7,930 | $11.18 | $88,657 | 113,386 Direct | +7.52% | Acquired | 270.1% (price as of 2026-10-06) |
| Sept. 15, 2025 | LIF | S 10b5-1 | 7,930 | $100.24 | $794,903 | 105,456 Direct | -6.99% | Disposed | -58.7% (price as of 2026-10-06) |
| Sept. 15, 2025 | LIF | M 10b5-1 | 7,930 | · | · | 111,020 Direct | -6.67% | Disposed | (price as of 2026-10-06) |
| Aug. 13, 2025 | LIF | M 10b5-1 | 7,930 | $11.18 | $88,657 | 113,386 Direct | +7.52% | Acquired | 270.1% (price as of 2026-10-06) |
| Aug. 13, 2025 | LIF | S 10b5-1 | 7,930 | $84.13 | $667,151 | 105,456 Direct | -6.99% | Disposed | -50.8% (price as of 2026-10-06) |
| Aug. 13, 2025 | LIF | M 10b5-1 | 7,930 | · | · | 118,950 Direct | -6.25% | Disposed | (price as of 2026-10-06) |
| July 14, 2025 | LIF | M 10b5-1 | 7,930 | $11.18 | $88,657 | 113,386 Direct | +7.52% | Acquired | 270.1% (price as of 2026-10-06) |
| July 14, 2025 | LIF | S 10b5-1 | 7,930 | $64.41 | $510,771 | 105,456 Direct | -6.99% | Disposed | -35.8% (price as of 2026-10-06) |
| July 14, 2025 | LIF | M 10b5-1 | 7,930 | · | · | 126,880 Direct | -5.88% | Disposed | (price as of 2026-10-06) |
| June 13, 2025 | LIF | M 10b5-1 | 7,942 | $11.18 | $88,792 | 113,398 Direct | +7.53% | Acquired | 270.1% (price as of 2026-10-06) |
| June 13, 2025 | LIF | S 10b5-1 | 7,942 | $61.63 | $489,465 | 105,456 Direct | -7.00% | Disposed | -32.9% (price as of 2026-10-06) |
| June 13, 2025 | LIF | M 10b5-1 | 7,942 | · | · | 134,810 Direct | -5.56% | Disposed | (price as of 2026-10-06) |
| June 4, 2025 | NTGR | A | 102,273 | · | · | 610,036 Direct | +20.14% | Acquired | (price as of 2026-10-06) |
| June 4, 2025 | NTGR | A | 204,546 | · | · | 204,546 Direct | · | Acquired | (price as of 2026-10-06) |
| May 29, 2025 | LIF | A | 2,714 | · | · | 105,456 Direct | +2.64% | Acquired | (price as of 2026-10-06) |
| March 4, 2025 | LIF | M | 50,000 | $11.18 | $559,000 | 152,742 Direct | +48.67% | Acquired | 270.1% (price as of 2026-10-06) |
| March 4, 2025 | LIF | S | 49,500 | $41.51 | $2,054,745 | 103,242 Direct | -32.41% | Disposed | -0.3% (price as of 2026-10-06) |
| March 4, 2025 | LIF | S | 500 | $42.17 | $21,085 | 102,742 Direct | -0.48% | Disposed | -1.9% (price as of 2026-10-06) |
| March 4, 2025 | LIF | M | 50,000 | · | · | 142,752 Direct | -25.94% | Disposed | (price as of 2026-10-06) |
| Feb. 20, 2025 | NTGR | S 10b5-1 | 10,929 | $26.64 | $291,149 | 507,763 Direct | -2.11% | Disposed | -13.5% (price as of 2026-10-06) |
| Jan. 31, 2025 | NTGR | M | 227,910 | · | · | 303,880 Direct | -42.86% | Disposed | (price as of 2026-10-06) |
| Jan. 31, 2025 | NTGR | F | 52,661 | $27.65 | $1,456,077 | 517,043 Direct | -9.24% | Disposed | -16.7% (price as of 2026-10-06) |
| Jan. 31, 2025 | NTGR | F | 115,733 | $27.65 | $3,200,017 | 569,704 Direct | -16.88% | Disposed | -16.7% (price as of 2026-10-06) |
| Jan. 31, 2025 | NTGR | M | 227,910 | · | · | 685,437 Direct | +49.81% | Acquired | (price as of 2026-10-06) |
| Jan. 31, 2025 | NTGR | M | 115,733 | $27.65 | $3,200,017 | 340,087 Direct | -25.39% | Disposed | -16.7% (price as of 2026-10-06) |
| Jan. 31, 2025 | NTGR | M | 52,661 | $27.65 | $1,456,077 | 404,866 Direct | -11.51% | Disposed | -16.7% (price as of 2026-10-06) |
| Jan. 31, 2025 | NTGR | F | 115,733 | $27.65 | $3,200,017 | 455,820 Direct | -20.25% | Disposed | -16.7% (price as of 2026-10-06) |
| Jan. 31, 2025 | NTGR | M | 115,733 | · | · | 571,553 Direct | +25.39% | Acquired | (price as of 2026-10-06) |
| Nov. 26, 2024 | LIF | G | 4,000 | · | · | 102,742 Direct | -3.75% | Disposed | (price as of 2026-10-06) |
| Sept. 11, 2024 | LIF | G | 40,000 | · | · | 112,742 Direct | -26.19% | Disposed | (price as of 2026-10-06) |
| Sept. 11, 2024 | LIF | S | 40,000 | $32.45 | $1,298,000 | 0 Indirect | -100.00% | Disposed | 27.5% (price as of 2026-10-06) |
| Sept. 11, 2024 | LIF | G | 6,000 | · | · | 106,742 Direct | -5.32% | Disposed | (price as of 2026-10-06) |
| Sept. 10, 2024 | LIF | M | 40,000 | $11.18 | $447,200 | 152,742 Direct | +35.48% | Acquired | 270.1% (price as of 2026-10-06) |
| Sept. 10, 2024 | LIF | M | 40,000 | · | · | 192,752 Direct | -17.19% | Disposed | (price as of 2026-10-06) |
| June 17, 2024 | LIF | S | 111,550 | $27.00 | $3,011,850 | 112,742 Direct | -49.73% | Disposed | 53.2% (price as of 2026-10-06) |
| June 7, 2024 | LIF | S | 263,803 | $27.00 | $7,122,681 | 224,292 Direct | -54.05% | Disposed | 53.2% (price as of 2026-10-06) |
| May 29, 2024 | LIF | A | 5,792 | · | · | 488,095 Direct | +1.20% | Acquired | (price as of 2026-10-06) |
| Feb. 27, 2024 | NTGR | A | 455,820 | · | · | 455,820 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 27, 2024 | NTGR | A | 455,820 | · | · | 455,820 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 27, 2024 | NTGR | A | 455,820 | · | · | 455,820 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 27, 2024 | NTGR | A | 455,820 | · | · | 455,820 Direct | · | Acquired | (price as of 2026-10-06) |
| March 8, 2023 | LIF | F | 153,017 | $10.23 | $1,565,364 | 478,323 Direct | -24.24% | Disposed | 304.4% (price as of 2026-10-06) |
| Feb. 16, 2018 | GPRO | F | 16,347 | $5.49 | $89,745 | 53,540 Direct | -23.39% | Disposed | -76.0% (price as of 2026-10-06) |
| Feb. 15, 2018 | GPRO | F | 10,477 | $5.62 | $58,881 | 115,598 Direct | -8.31% | Disposed | -76.5% (price as of 2026-10-06) |
| Sept. 11, 2017 | GPRO | C | 5,434 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Sept. 11, 2017 | GPRO | S 10b5-1 | 24,918 | $11.00 | $274,098 | 123,575 Direct | -16.78% | Disposed | -88.0% (price as of 2026-10-06) |
| Sept. 11, 2017 | GPRO | C | 5,434 | · | · | 148,493 Direct | +3.80% | Acquired | (price as of 2026-10-06) |
| Aug. 15, 2017 | GPRO | F | 6,264 | $9.88 | $61,888 | 143,059 Direct | -4.19% | Disposed | -86.6% (price as of 2026-10-06) |
| Feb. 17, 2017 | GPRO | S 10b5-1 | 1,602 | $9.20 | $14,738 | 149,323 Direct | -1.06% | Disposed | -85.7% (price as of 2026-10-06) |
| Feb. 15, 2017 | GPRO | A | 227,273 | · | · | 227,273 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 15, 2017 | GPRO | F | 5,724 | $9.44 | $54,035 | 150,925 Direct | -3.65% | Disposed | -86.0% (price as of 2026-10-06) |
| Feb. 15, 2017 | GPRO | A | 100,000 | · | · | 155,047 Direct | +181.66% | Acquired | (price as of 2026-10-06) |
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 |
|---|---|---|---|---|---|---|---|
| Sept. 14, 2026 | LIF | Stock Option (right to buy) | Common stock | $11.18 | April 12, 2028 | 7,930 | Disposed |
| Aug. 13, 2026 | LIF | Stock Option (right to buy) | Common stock | $11.18 | April 12, 2028 | 7,930 | Disposed |
| July 13, 2026 | LIF | Stock Option (right to buy) | Common stock | $11.18 | April 12, 2028 | 7,930 | Disposed |
| June 15, 2026 | LIF | Stock Option (right to buy) | Common stock | $11.18 | April 12, 2028 | 7,930 | Disposed |
| May 13, 2026 | LIF | Stock Option (right to buy) | Common stock | $11.18 | April 12, 2028 | 7,930 | Disposed |
| April 13, 2026 | LIF | Stock Option (right to buy) | Common stock | $11.18 | April 12, 2028 | 7,930 | Disposed |
| April 2, 2026 | NTGR | Performance Restricted Stock Units | Common Stock | · | · | 114,732 | Acquired |
| March 13, 2026 | LIF | Stock Option (right to buy) | Common stock | $11.18 | April 12, 2028 | 7,930 | Disposed |
| Feb. 13, 2026 | LIF | Stock Option (right to buy) | Common stock | $11.18 | April 12, 2028 | 7,930 | Disposed |
| Jan. 31, 2026 | NTGR | Performance Restricted Stock Units | Common Stock | · | · | 157,714 | Disposed |
| Jan. 13, 2026 | LIF | Stock Option (right to buy) | Common stock | $11.18 | April 12, 2028 | 7,930 | Disposed |
| Dec. 15, 2025 | LIF | Stock Option (right to buy) | Common stock | $11.18 | April 12, 2028 | 7,930 | Disposed |
| Nov. 13, 2025 | LIF | Stock Option (right to buy) | Common stock | $11.18 | April 12, 2028 | 7,930 | Disposed |
| Oct. 13, 2025 | LIF | Stock Option (right to buy) | Common stock | $11.18 | April 12, 2028 | 7,930 | Disposed |
| Sept. 15, 2025 | LIF | Stock Option (right to buy) | Common stock | $11.18 | April 12, 2028 | 7,930 | Disposed |
| Aug. 13, 2025 | LIF | Stock Option (right to buy) | Common stock | $11.18 | April 12, 2028 | 7,930 | Disposed |
| July 14, 2025 | LIF | Stock Option (right to buy) | Common stock | $11.18 | April 12, 2028 | 7,930 | Disposed |
| June 13, 2025 | LIF | Stock Option (right to buy) | Common stock | $11.18 | April 12, 2028 | 7,942 | Disposed |
| June 4, 2025 | NTGR | Performance Restricted Stock Units | Common Stock | · | · | 204,546 | Acquired |
| March 4, 2025 | LIF | Stock Option (right to buy) | Common stock | $11.18 | April 12, 2028 | 50,000 | Disposed |
| Jan. 31, 2025 | NTGR | Performace Restricted Stock Units | Common Stock | · | · | 227,910 | Disposed |
| Jan. 31, 2025 | NTGR | Performance Restricted Units | Common Stock | · | · | 115,733 | Disposed |
| Sept. 10, 2024 | LIF | Stock Option (right to buy) | Common stock | $11.18 | April 12, 2028 | 40,000 | Disposed |
| Feb. 27, 2024 | NTGR | Performace Restricted Stock Units [F2] | Common Stock | · | · | 455,820 | Acquired |
| Feb. 27, 2024 | NTGR | Performace Restricted Stock Units [F2] | Common Stock | · | · | 455,820 | Acquired |
| Sept. 11, 2017 | GPRO | Class B Common Stock | Class A Common Stock | · | · | 5,434 | Disposed |
| Feb. 15, 2017 | GPRO | Non-Qualified Stock Option (right to buy) | Class A Common Stock | $9.44 | Feb. 14, 2027 | 227,273 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 10 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| June 29, 2022 | LIF | Stock Option (right to buy) | 232,752 | Direct |
| June 27, 2022 | LIF | Common Stock | 631,340 | Direct |
| June 27, 2022 | LIF | Stock Option (right to buy) | 232,752 | Direct |
| Jan. 31, 2017 | GPRO | Class A Common Stock | 55,047 | Direct |
| Jan. 31, 2017 | GPRO | Incentive Stock Option (right to buy) | 16,302 | Direct |
| Jan. 31, 2017 | GPRO | Non-Qualified Stock Option (right to buy) | 86,823 | Direct |
| Jan. 31, 2017 | GPRO | Non-Qualified Stock Option (right to buy) | 12,879 | Direct |
| Jan. 31, 2017 | GPRO | Non-Qualified Stock Option (right to buy) | 66,116 | Direct |
| Jan. 31, 2017 | GPRO | Non-Qualified Stock Option (right to buy) | 41,118 | Direct |
| Jan. 31, 2017 | GPRO | Class B Common Stock | 5,434 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2025 | · | · | · | · | · | · | · | $10,555,676 |
| 2024 | · | $826,230 | · | · | · | · | · | $17,753,288 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.