John Charles Stone
Insider
First SEC filing: July 17, 2013 · Latest: July 17, 2013
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
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 |
|---|---|---|---|---|---|---|---|---|---|
| Feb. 11, 2022 | AMKR | F | 455 | $20.90 | $9,510 | 31,038 Direct | -1.44% | Disposed | 161.4% (price as of 2026-10-05) |
| Dec. 21, 2021 | AMKR | F | 59 | $22.60 | $1,333 | 31,493 Direct | -0.19% | Disposed | 141.7% (price as of 2026-10-05) |
| Nov. 19, 2021 | AMKR | M | 9,375 | · | · | 46,875 Direct | -16.67% | Disposed | (price as of 2026-10-05) |
| Nov. 19, 2021 | AMKR | S 10b5-1 | 9,375 | $25.00 | $234,375 | 31,552 Direct | -22.91% | Disposed | 118.5% (price as of 2026-10-05) |
| Nov. 19, 2021 | AMKR | M | 9,375 | $9.48 | $88,875 | 40,927 Direct | +29.71% | Acquired | 476.3% (price as of 2026-10-05) |
| Aug. 26, 2021 | AMKR | M | 9,375 | · | · | 56,250 Direct | -14.29% | Disposed | (price as of 2026-10-05) |
| Aug. 26, 2021 | AMKR | S | 9,375 | $26.30 | $246,562 | 31,552 Direct | -22.91% | Disposed | 107.7% (price as of 2026-10-05) |
| Aug. 26, 2021 | AMKR | M | 9,375 | $9.48 | $88,875 | 40,927 Direct | +29.71% | Acquired | 476.3% (price as of 2026-10-05) |
| June 25, 2021 | AMKR | M | 9,375 | $9.48 | $88,875 | 40,927 Direct | +29.71% | Acquired | 476.3% (price as of 2026-10-05) |
| June 25, 2021 | AMKR | S 10b5-1 | 9,375 | $24.00 | $225,000 | 31,552 Direct | -22.91% | Disposed | 127.6% (price as of 2026-10-05) |
| June 25, 2021 | AMKR | M | 9,375 | · | · | 65,625 Direct | -12.50% | Disposed | (price as of 2026-10-05) |
| March 18, 2021 | AMKR | M | 9,375 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| March 18, 2021 | AMKR | S 10b5-1 | 9,375 | $24.00 | $225,000 | 31,552 Direct | -22.91% | Disposed | 127.6% (price as of 2026-10-05) |
| March 18, 2021 | AMKR | M | 9,375 | $9.86 | $92,438 | 40,927 Direct | +29.71% | Acquired | 454.1% (price as of 2026-10-05) |
| Feb. 16, 2021 | AMKR | M | 9,375 | · | · | 75,000 Direct | -11.11% | Disposed | (price as of 2026-10-05) |
| Feb. 16, 2021 | AMKR | S | 9,375 | $25.23 | $236,531 | 31,552 Direct | -22.91% | Disposed | 116.5% (price as of 2026-10-05) |
| Feb. 16, 2021 | AMKR | M | 9,375 | $9.48 | $88,875 | 40,927 Direct | +29.71% | Acquired | 476.3% (price as of 2026-10-05) |
| Feb. 11, 2021 | AMKR | A | 6,536 | · | · | 31,552 Direct | +26.13% | Acquired | (price as of 2026-10-05) |
| Feb. 11, 2021 | AMKR | M | 18,750 | · | · | 9,375 Direct | -66.67% | Disposed | (price as of 2026-10-05) |
| Feb. 11, 2021 | AMKR | M | 65,625 | · | · | 84,375 Direct | -43.75% | Disposed | (price as of 2026-10-05) |
| Feb. 11, 2021 | AMKR | S | 18,750 | $21.35 | $400,312 | 25,016 Direct | -42.84% | Disposed | 155.9% (price as of 2026-10-05) |
| Feb. 11, 2021 | AMKR | M | 18,750 | $9.86 | $184,875 | 43,766 Direct | +74.95% | Acquired | 454.1% (price as of 2026-10-05) |
| Feb. 11, 2021 | AMKR | S | 65,625 | $21.35 | $1,401,094 | 25,016 Direct | -72.40% | Disposed | 155.9% (price as of 2026-10-05) |
| Feb. 11, 2021 | AMKR | M | 65,625 | $9.48 | $622,125 | 90,641 Direct | +262.33% | Acquired | 476.3% (price as of 2026-10-05) |
| Dec. 3, 2020 | AMKR | M | 28,125 | · | · | 28,125 Direct | -50.00% | Disposed | (price as of 2026-10-05) |
| Dec. 3, 2020 | AMKR | S 10b5-1 | 28,125 | $15.25 | $428,906 | 25,016 Direct | -52.93% | Disposed | 258.2% (price as of 2026-10-05) |
| Dec. 3, 2020 | AMKR | M | 28,125 | $9.86 | $277,312 | 53,141 Direct | +112.43% | Acquired | 454.1% (price as of 2026-10-05) |
| Nov. 1, 2019 | AMKR | M | 61,104 | · | · | 56,250 Direct | -52.07% | Disposed | (price as of 2026-10-05) |
| Nov. 1, 2019 | AMKR | S | 61,104 | $12.78 | $780,909 | 25,016 Direct | -70.95% | Disposed | 327.5% (price as of 2026-10-05) |
| Nov. 1, 2019 | AMKR | M | 61,104 | $9.86 | $602,485 | 86,120 Direct | +244.26% | Acquired | 454.1% (price as of 2026-10-05) |
| Nov. 1, 2019 | AMKR | M | 61,104 | · | · | 56,250 Direct | · | Acquired | (price as of 2026-10-05) |
| Nov. 1, 2019 | AMKR | S | 61,104 | $12.78 | $780,909 | 25,016 Direct | -70.95% | Disposed | 327.5% (price as of 2026-10-05) |
| Nov. 1, 2019 | AMKR | M | 61,104 | $9.86 | $602,485 | 86,120 Direct | +244.26% | Acquired | 454.1% (price as of 2026-10-05) |
| Oct. 31, 2019 | AMKR | M | 32,646 | · | · | 117,354 Direct | -21.76% | Disposed | (price as of 2026-10-05) |
| Oct. 31, 2019 | AMKR | S | 4,706 | $13.72 | $64,566 | 25,016 Direct | -15.83% | Disposed | 298.2% (price as of 2026-10-05) |
| Oct. 31, 2019 | AMKR | S | 32,646 | $13.40 | $437,456 | 29,722 Direct | -52.34% | Disposed | 307.7% (price as of 2026-10-05) |
| Oct. 31, 2019 | AMKR | M | 32,646 | $9.86 | $321,890 | 62,368 Direct | +109.84% | Acquired | 454.1% (price as of 2026-10-05) |
| Oct. 31, 2019 | AMKR | M | 32,646 | · | · | 117,354 Direct | +38.54% | Acquired | (price as of 2026-10-05) |
| Oct. 31, 2019 | AMKR | S | 4,706 | $13.72 | $64,566 | 25,016 Direct | -15.83% | Disposed | 298.2% (price as of 2026-10-05) |
| Oct. 31, 2019 | AMKR | S | 32,646 | $13.40 | $437,456 | 29,722 Direct | -52.34% | Disposed | 307.7% (price as of 2026-10-05) |
| Oct. 31, 2019 | AMKR | M | 32,646 | $9.86 | $321,890 | 62,368 Direct | +109.84% | Acquired | 454.1% (price as of 2026-10-05) |
| March 15, 2019 | AMKR | M | 4,000 | · | · | 0 Direct | · | Acquired | (price as of 2026-10-05) |
| March 15, 2019 | AMKR | S | 4,000 | $8.81 | $35,240 | 29,722 Direct | -11.86% | Disposed | 520.1% (price as of 2026-10-05) |
| March 15, 2019 | AMKR | M | 4,000 | $4.28 | $17,120 | 33,722 Direct | +13.46% | Acquired | 1176.4% (price as of 2026-10-05) |
| March 14, 2019 | AMKR | M | 21,000 | · | · | 4,000 Direct | · | Acquired | (price as of 2026-10-05) |
| March 14, 2019 | AMKR | S | 21,000 | $8.61 | $180,810 | 29,722 Direct | -41.40% | Disposed | 534.5% (price as of 2026-10-05) |
| March 14, 2019 | AMKR | M | 21,000 | $4.28 | $89,880 | 50,722 Direct | +70.65% | Acquired | 1176.4% (price as of 2026-10-05) |
| Feb. 15, 2019 | AMKR | A | 150,000 | · | · | 150,000 Direct | · | Acquired | (price as of 2026-10-05) |
| Feb. 27, 2017 | AMKR | A | 150,000 | · | · | 150,000 Direct | · | Acquired | (price as of 2026-10-05) |
| Nov. 22, 2016 | AMKR | M | 25,000 | · | · | 25,000 Direct | -50.00% | Disposed | (price as of 2026-10-05) |
| Nov. 21, 2016 | AMKR | S | 25,000 | $12.35 | $308,750 | 29,722 Direct | -45.69% | Disposed | 342.3% (price as of 2026-10-05) |
| Nov. 21, 2016 | AMKR | M | 25,000 | $4.28 | $107,000 | 54,722 Direct | +84.11% | Acquired | 1176.4% (price as of 2026-10-05) |
| Nov. 18, 2016 | AMKR | M | 50,000 | · | · | 50,000 Direct | -50.00% | Disposed | (price as of 2026-10-05) |
| Nov. 18, 2016 | AMKR | S | 50,000 | $12.13 | $606,500 | 29,722 Direct | -62.72% | Disposed | 350.4% (price as of 2026-10-05) |
| Nov. 18, 2016 | AMKR | M | 50,000 | $4.28 | $214,000 | 79,722 Direct | +168.23% | Acquired | 1176.4% (price as of 2026-10-05) |
| Nov. 8, 2016 | AMKR | M | 30,000 | $8.67 | $260,100 | 59,722 Direct | +100.94% | Acquired | 530.1% (price as of 2026-10-05) |
| Nov. 8, 2016 | AMKR | S | 30,000 | $11.01 | $330,300 | 29,722 Direct | -50.23% | Disposed | 396.2% (price as of 2026-10-05) |
| Nov. 8, 2016 | AMKR | M | 30,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Nov. 1, 2016 | AMKR | F | 313 | $10.23 | $3,202 | 29,722 Direct | -1.04% | Disposed | 434.0% (price as of 2026-10-05) |
| Sept. 7, 2016 | AMKR | M | 6,600 | · | · | 30,000 Direct | -18.03% | Disposed | (price as of 2026-10-05) |
| Sept. 7, 2016 | AMKR | S | 6,600 | $9.25 | $61,050 | 6,600 Direct | -50.00% | Disposed | 490.6% (price as of 2026-10-05) |
| Sept. 7, 2016 | AMKR | M | 6,600 | $8.67 | $57,222 | 6,600 Direct | · | Acquired | 530.1% (price as of 2026-10-05) |
| Sept. 2, 2016 | AMKR | M | 3,400 | · | · | 36,600 Direct | -8.50% | Disposed | (price as of 2026-10-05) |
| Sept. 2, 2016 | AMKR | S | 3,400 | $9.25 | $31,450 | 3,400 Direct | -50.00% | Disposed | 490.6% (price as of 2026-10-05) |
| Sept. 2, 2016 | AMKR | M | 3,400 | $8.67 | $29,478 | 3,400 Direct | · | Acquired | 530.1% (price as of 2026-10-05) |
| Aug. 1, 2016 | AMKR | F | 313 | $6.45 | $2,019 | 30,035 Direct | -1.03% | Disposed | 747.0% (price as of 2026-10-05) |
| May 1, 2016 | AMKR | F | 313 | $5.71 | $1,787 | 30,348 Direct | -1.02% | Disposed | 856.7% (price as of 2026-10-05) |
| Feb. 1, 2016 | AMKR | F | 363 | $5.93 | $2,153 | 30,661 Direct | -1.17% | Disposed | 821.2% (price as of 2026-10-05) |
| Nov. 1, 2015 | AMKR | F | 313 | $6.22 | $1,947 | 31,024 Direct | -1.00% | Disposed | 778.3% (price as of 2026-10-05) |
| Aug. 1, 2015 | AMKR | F | 313 | $4.41 | $1,380 | 31,337 Direct | -0.99% | Disposed | 1138.8% (price as of 2026-10-05) |
| May 1, 2015 | AMKR | F | 313 | $7.16 | $2,241 | 31,650 Direct | -0.98% | Disposed | 663.0% (price as of 2026-10-05) |
| Feb. 14, 2015 | AMKR | F | 363 | $8.92 | $3,238 | 31,963 Direct | -1.12% | Disposed | 512.4% (price as of 2026-10-05) |
| Feb. 1, 2015 | AMKR | F | 363 | $6.35 | $2,305 | 32,326 Direct | -1.11% | Disposed | 760.3% (price as of 2026-10-05) |
| Nov. 25, 2014 | AMKR | M | 20,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Nov. 25, 2014 | AMKR | S | 15,294 | $6.94 | $106,140 | 32,689 Direct | -31.87% | Disposed | 687.2% (price as of 2026-10-05) |
| Nov. 25, 2014 | AMKR | M | 20,000 | $4.41 | $88,200 | 47,983 Direct | +71.47% | Acquired | 1138.8% (price as of 2026-10-05) |
| Nov. 14, 2014 | AMKR | F | 313 | $6.39 | $2,000 | 27,983 Direct | -1.11% | Disposed | 754.9% (price as of 2026-10-05) |
| Nov. 1, 2014 | AMKR | F | 313 | $6.78 | $2,122 | 28,296 Direct | -1.09% | Disposed | 705.8% (price as of 2026-10-05) |
| Aug. 14, 2014 | AMKR | F | 313 | $9.33 | $2,920 | 28,609 Direct | -1.08% | Disposed | 485.5% (price as of 2026-10-05) |
| Aug. 1, 2014 | AMKR | F | 313 | $9.07 | $2,839 | 28,922 Direct | -1.07% | Disposed | 502.3% (price as of 2026-10-05) |
| June 6, 2014 | AMKR | M | 20,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| June 6, 2014 | AMKR | S | 20,000 | $10.91 | $218,200 | 29,235 Direct | -40.62% | Disposed | 400.7% (price as of 2026-10-05) |
| June 6, 2014 | AMKR | M | 20,000 | $5.71 | $114,200 | 49,235 Direct | +68.41% | Acquired | 856.7% (price as of 2026-10-05) |
| May 14, 2014 | AMKR | F | 313 | $9.13 | $2,858 | 29,235 Direct | -1.06% | Disposed | 498.4% (price as of 2026-10-05) |
| May 1, 2014 | AMKR | F | 313 | $8.11 | $2,538 | 29,548 Direct | -1.05% | Disposed | 573.6% (price as of 2026-10-05) |
| Feb. 14, 2014 | AMKR | F | 363 | $5.27 | $1,913 | 29,861 Direct | -1.20% | Disposed | 936.6% (price as of 2026-10-05) |
| Feb. 3, 2014 | AMKR | F | 41 | $5.24 | $215 | 30,224 Direct | -0.14% | Disposed | 942.6% (price as of 2026-10-05) |
| Feb. 1, 2014 | AMKR | F | 363 | $5.30 | $1,924 | 30,265 Direct | -1.19% | Disposed | 930.8% (price as of 2026-10-05) |
| Jan. 3, 2014 | AMKR | F | 41 | $6.12 | $251 | 30,628 Direct | -0.13% | Disposed | 792.6% (price as of 2026-10-05) |
| Dec. 3, 2013 | AMKR | F | 35 | $5.86 | $205 | 30,669 Direct | -0.11% | Disposed | 832.3% (price as of 2026-10-05) |
| Nov. 14, 2013 | AMKR | F | 313 | $5.45 | $1,706 | 30,704 Direct | -1.01% | Disposed | 902.4% (price as of 2026-10-05) |
| Nov. 3, 2013 | AMKR | F | 35 | $5.32 | $186 | 31,017 Direct | -0.11% | Disposed | 926.9% (price as of 2026-10-05) |
| Nov. 1, 2013 | AMKR | F | 1,251 | $5.32 | $6,655 | 31,052 Direct | -3.87% | Disposed | 926.9% (price as of 2026-10-05) |
| Oct. 3, 2013 | AMKR | F | 35 | $4.42 | $155 | 32,303 Direct | -0.11% | Disposed | 1136.0% (price as of 2026-10-05) |
| Sept. 9, 2013 | AMKR | A | 100,000 | · | · | 100,000 Direct | · | Acquired | (price as of 2026-10-05) |
| Sept. 3, 2013 | AMKR | F | 35 | $4.10 | $144 | 32,338 Direct | -0.11% | Disposed | 1232.4% (price as of 2026-10-05) |
| Aug. 14, 2013 | AMKR | F | 313 | $4.25 | $1,330 | 32,373 Direct | -0.96% | Disposed | 1185.4% (price as of 2026-10-05) |
| Aug. 3, 2013 | AMKR | F | 36 | $4.22 | $152 | 32,686 Direct | -0.11% | Disposed | 1194.5% (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.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Nov. 19, 2021 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock | $9.48 | Feb. 15, 2029 | 9,375 | Disposed |
| Aug. 26, 2021 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock | $9.48 | Feb. 15, 2029 | 9,375 | Disposed |
| June 25, 2021 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock | $9.48 | Feb. 15, 2029 | 9,375 | Disposed |
| March 18, 2021 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock | $9.86 | Feb. 27, 2027 | 9,375 | Disposed |
| Feb. 16, 2021 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock | $9.48 | Feb. 15, 2029 | 9,375 | Disposed |
| Feb. 11, 2021 | AMKR | Employee Stock Option (Right-To-Buy) | Common Stock | $9.86 | Feb. 27, 2027 | 18,750 | Disposed |
| Feb. 11, 2021 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock | $9.48 | Feb. 15, 2029 | 65,625 | Disposed |
| Dec. 3, 2020 | AMKR | Employee Stock Option (Right-to-Buy) | Common Stock | $9.86 | Feb. 27, 2027 | 28,125 | Disposed |
| Nov. 1, 2019 | AMKR | Employee Stock Option (Right-to-Buy) | Amkor Technology, Inc., Common Stock | $9.86 | Feb. 27, 2027 | 61,104 | Disposed |
| Nov. 1, 2019 | AMKR | Employee Stock Option (Right-to-Buy) | Amkor Technology, Inc., Common Stock | $9.86 | Feb. 27, 2027 | 61,104 | Acquired |
| Oct. 31, 2019 | AMKR | Employee Stock Option (Right-to-Buy) | Amkor Technology, Inc. Common Stock | $9.86 | Feb. 27, 2027 | 32,646 | Disposed |
| Oct. 31, 2019 | AMKR | Employee Stock Option (Right-to-Buy) | Amkor Technology, Inc. Common Stock | $9.86 | Feb. 27, 2027 | 32,646 | Acquired |
| March 15, 2019 | AMKR | Employee Stock (Right To Buy) | Amkor Technology, Inc. | $4.28 | Sept. 9, 2023 | 4,000 | Acquired |
| March 14, 2019 | AMKR | Employee Stock Option (Right-to-Buy) | Amkor Technology, Inc., Common Stock | $4.28 | Sept. 9, 2023 | 21,000 | Acquired |
| Feb. 15, 2019 | AMKR | Employee Stock Option (Right-to-Buy) | Amkor Technology, Inc., Common Stock | $9.48 | Feb. 15, 2029 | 150,000 | Acquired |
| Feb. 27, 2017 | AMKR | Employee Stock Option (Right-to-Buy) | Amkor Technology, Inc., Common Stock | $9.86 | Feb. 27, 2027 | 150,000 | Acquired |
| Nov. 22, 2016 | AMKR | Employee Stock Option (Right to Buy) | Amkor Technology, Inc. | $4.28 | Sept. 9, 2023 | 25,000 | Disposed |
| Nov. 18, 2016 | AMKR | Employee Stock Option (Right to Buy) | Amkor Technology, Inc. | $4.28 | Sept. 9, 2023 | 50,000 | Disposed |
| Nov. 8, 2016 | AMKR | Employee Stock Option (Right to Buy) | Amkor Technoloby, Inc. | $8.67 | Dec. 14, 2017 | 30,000 | Disposed |
| Sept. 7, 2016 | AMKR | Employee Stock Option (Right to Buy) | Amkor Technology, Inc. | $8.67 | Dec. 14, 2017 | 6,600 | Disposed |
| Sept. 2, 2016 | AMKR | Employee Stock Option (Right to Buy) | Amkor Technology, Inc. | $8.67 | Dec. 14, 2017 | 3,400 | Disposed |
| Nov. 25, 2014 | AMKR | Employee Stock Option (right to Buy) | Amkor Technology, Inc. | $4.41 | Feb. 18, 2015 | 20,000 | Disposed |
| June 6, 2014 | AMKR | Employee Stock Option (Right to Buy) | Amkor Technology, Inc. | $5.71 | Oct. 27, 2014 | 20,000 | Disposed |
| Sept. 9, 2013 | AMKR | Employee Stock Option (Right to Buy) | Amkor Technology, Inc. | $4.28 | Sept. 9, 2023 | 100,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 6 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| July 17, 2013 | AMKR | Amkor Technology, Inc. Common Stock | · | Direct |
| July 17, 2013 | AMKR | Amkor Technology, Inc. Common Stock | 2,000 | Indirect |
| July 17, 2013 | AMKR | Employee Stock Option (Right to Buy) | 20,000 | Direct |
| July 17, 2013 | AMKR | Employee Stock Option (Right to Buy) | 20,000 | Direct |
| July 17, 2013 | AMKR | Employee Stock Option (Right to Buy) | 8,000 | Direct |
| July 17, 2013 | AMKR | Employee Stock Option (Right to Buy) | 40,000 | 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 |
|---|---|---|---|---|---|---|---|---|
| 2021 | $570,000 | · | · | · | $641,250 | · | $11,953 | $1,813,535 |
| 2020 | $571,154 | · | · | · | $618,750 | · | $12,759 | $1,202,663 |
| 2019 | $550,000 | · | · | $624,270 | $433,125 | · | $11,916 | $1,619,311 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.