CHURCHILL WINSTON J
CIK 923792 · View on SEC EDGAR ↗
Insider
First SEC filing: June 16, 2026 · Latest: June 16, 2026
On this page
Insider at
Insider transactions
0 buys (P)
1 sells (S)
Net:
$-391,000
+ 65 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
65 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 12, 2026 | AMKR | S | 5,000 | $78.20 | $391,000 | 28,781 Direct | -14.80% | Disposed | -34.9% (price as of 2026-08-21) |
| Aug. 27, 2024 | AMKR | S | 20,000 | $32.97 | $659,400 | 19,871 Direct | -50.16% | Disposed | 54.4% (price as of 2026-08-21) |
| March 7, 2024 | AMKR | S | 11,903 | $36.20 | $430,889 | 11,300 Direct | -51.30% | Disposed | 40.6% (price as of 2026-08-21) |
| June 13, 2023 | ISSC | S | 3,499 | $6.90 | $24,143 | 9,523 Direct | -26.87% | Disposed | 203.5% (price as of 2026-08-21) |
| June 6, 2023 | ISSC | S | 14 | $6.90 | $97 | 13,022 Direct | -0.11% | Disposed | 203.5% (price as of 2026-08-21) |
| June 5, 2023 | ISSC | S | 1,556 | $6.90 | $10,736 | 13,036 Direct | -10.66% | Disposed | 203.5% (price as of 2026-08-21) |
| May 19, 2023 | ISSC | S | 900 | $7.00 | $6,300 | 14,592 Direct | -5.81% | Disposed | 199.1% (price as of 2026-08-21) |
| May 18, 2023 | ISSC | S | 80 | $7.00 | $560 | 15,492 Direct | -0.51% | Disposed | 199.1% (price as of 2026-08-21) |
| May 17, 2023 | ISSC | S | 300 | $7.00 | $2,100 | 15,572 Direct | -1.89% | Disposed | 199.1% (price as of 2026-08-21) |
| Feb. 16, 2023 | AMKR | S | 20,000 | $27.29 | $545,800 | 14,394 Direct | -58.15% | Disposed | 86.5% (price as of 2026-08-21) |
| Dec. 7, 2022 | AMKR | S | 20,000 | $26.00 | $520,000 | 14,394 Direct | -58.15% | Disposed | 95.8% (price as of 2026-08-21) |
| Nov. 29, 2021 | AMKR | S | 20,000 | $22.42 | $448,400 | 14,394 Direct | -58.15% | Disposed | 127.1% (price as of 2026-08-21) |
| June 2, 2021 | ISSC | S | 2,700 | $5.54 | $14,958 | 1,693 Direct | -61.46% | Disposed | 278.0% (price as of 2026-08-21) |
| June 1, 2021 | ISSC | S | 7,300 | $5.51 | $40,223 | 4,393 Direct | -62.43% | Disposed | 280.0% (price as of 2026-08-21) |
| May 25, 2021 | AMKR | S | 20,000 | $20.66 | $413,200 | 14,394 Direct | -58.15% | Disposed | 146.4% (price as of 2026-08-21) |
| May 25, 2021 | AMKR | S | 6,106 | $20.67 | $126,211 | 14,394 Direct | -29.79% | Disposed | 146.3% (price as of 2026-08-21) |
| March 10, 2021 | ISSC | S | 24,936 | $6.01 | $149,865 | 11,693 Direct | -68.08% | Disposed | 248.4% (price as of 2026-08-21) |
| March 10, 2021 | ISSC | S | 200 | $6.36 | $1,272 | 36,629 Direct | -0.54% | Disposed | 229.2% (price as of 2026-08-21) |
| Feb. 12, 2021 | AMKR | S | 8,207 | $24.21 | $198,691 | 17,406 Direct | -32.04% | Disposed | 110.3% (price as of 2026-08-21) |
| Dec. 17, 2020 | ISSC | S | 15,202 | $7.76 | $117,968 | 29,957 Direct | -33.66% | Disposed | 169.8% (price as of 2026-08-21) |
| Dec. 16, 2020 | ISSC | S | 1,400 | $7.76 | $10,864 | 45,159 Direct | -3.01% | Disposed | 169.8% (price as of 2026-08-21) |
| Dec. 16, 2020 | ISSC | S | 10,251 | $7.99 | $81,905 | 46,559 Direct | -18.04% | Disposed | 162.1% (price as of 2026-08-21) |
| May 27, 2020 | ISSC | S | 3,673 | $5.03 | $18,475 | 56,810 Direct | -6.07% | Disposed | 316.3% (price as of 2026-08-21) |
| May 26, 2020 | ISSC | S | 14,327 | $5.04 | $72,208 | 60,483 Direct | -19.15% | Disposed | 315.5% (price as of 2026-08-21) |
| May 22, 2020 | ISSC | S | 1,700 | $5.03 | $8,551 | 74,810 Direct | -2.22% | Disposed | 316.3% (price as of 2026-08-21) |
| May 21, 2020 | ISSC | S | 300 | $5.00 | $1,500 | 76,510 Direct | -0.39% | Disposed | 318.8% (price as of 2026-08-21) |
| Feb. 24, 2020 | ISSC | S | 68,000 | $6.04 | $410,720 | 76,810 Direct | -46.96% | Disposed | 246.7% (price as of 2026-08-21) |
| Feb. 21, 2020 | AMKR | S | 4,700 | $12.64 | $59,408 | 19,507 Direct | -19.42% | Disposed | 302.7% (price as of 2026-08-21) |
| Feb. 19, 2019 | AMKR | S | 17,476 | $9.42 | $164,624 | 16,000 Direct | -52.20% | Disposed | 440.4% (price as of 2026-08-21) |
| March 9, 2018 | AMKR | S | 20,000 | $11.37 | $227,400 | 28,776 Direct | -41.00% | Disposed | 347.7% (price as of 2026-08-21) |
| March 9, 2018 | AMKR | S | 20,000 | $11.35 | $227,000 | 28,776 Direct | -41.00% | Disposed | 348.5% (price as of 2026-08-21) |
| March 9, 2018 | AMKR | S | 20,000 | $11.35 | $227,000 | 28,776 Direct | -41.00% | Disposed | 348.5% (price as of 2026-08-21) |
| Feb. 16, 2018 | ISSC | S | 28,808 | $3.20 | $92,186 | 0 Indirect | -100.00% | Disposed | 554.4% (price as of 2026-08-21) |
| May 18, 2017 | AMKR | S | 13,402 | $11.00 | $147,422 | 28,776 Direct | -31.77% | Disposed | 362.8% (price as of 2026-08-21) |
| May 12, 2017 | AMKR | S | 6,598 | $11.81 | $77,922 | 28,776 Direct | -18.65% | Disposed | 331.0% (price as of 2026-08-21) |
Showing latest 100 of 451 transactions
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 23, 2026 | AMKR | Restricted Stock Units | Common Stock (3) | — | — | 3 | Acquired |
| June 12, 2026 | AMKR | Director Stock Option (Right-to-Buy) | Common Stock (5,000) | $19.39 | May 18, 2031 | 5,000 | Disposed |
| June 25, 2025 | AMKR | Restricted Stock Units | Common Stock (39) | — | — | 39 | Acquired |
| May 15, 2025 | AMKR | Restricted Stock Units | Common Stock (9,789) | — | — | 9,789 | Acquired |
| May 14, 2025 | AMKR | Restricted Stock Units | Common Stock | — | — | 6,017 | Disposed |
| April 2, 2025 | AMKR | Restricted Stock Units | Common Stock (26) | — | — | 26 | Acquired |
| Dec. 23, 2024 | AMKR | Restricted Stock Units | Common Stock (109) | — | — | 109 | Acquired |
| Sept. 23, 2024 | AMKR | Restricted Stock Units | Common Stock (15) | — | — | 15 | Acquired |
| Aug. 27, 2024 | AMKR | Director Stock Option (Right-to-Buy) | Common Stock (20,000) | $11.71 | May 2, 2027 | 20,000 | Disposed |
| June 24, 2024 | AMKR | Restricted Stock Units | Common Stock (12) | — | — | 12 | Acquired |
| May 14, 2024 | AMKR | Restricted Stock Units | Common Stock (5,855) | — | — | 5,855 | Acquired |
| May 14, 2024 | AMKR | Restricted Stock Units | Common Stock | — | — | 8,571 | Disposed |
| April 1, 2024 | AMKR | Restricted Stock Units | Common Stock (21) | — | — | 21 | Acquired |
| Dec. 26, 2023 | AMKR | Restricted Stock Units | Common Stock (20) | — | — | 20 | Acquired |
| Sept. 25, 2023 | AMKR | Restricted Stock Units | Common Stock | — | — | 28 | Acquired |
| June 26, 2023 | AMKR | Restricted Stock Units | Common Stock | — | — | 24 | Acquired |
| May 16, 2023 | AMKR | Restricted Stock Units | Common Stock (8,478) | — | — | 8,478 | Acquired |
| May 16, 2023 | AMKR | Restricted Stock Units | Common Stock | — | — | 8,809 | Disposed |
| March 20, 2023 | AMKR | Restricted Stock Units | Common Stock | — | — | 26 | Acquired |
| Feb. 16, 2023 | AMKR | Director Stock Option (Right-to-Buy) | Common Stock (20,000) | $8.51 | May 1, 2028 | 20,000 | Disposed |
| Dec. 27, 2022 | AMKR | Restricted Stock Units | Common Stock | — | — | 27 | Acquired |
| Dec. 7, 2022 | AMKR | Director Stock Option (Right-to-Buy) | Common Stock (20,000) | $9.17 | May 13, 2024 | 20,000 | Disposed |
| Sept. 26, 2022 | AMKR | Restricted Stock Units | Common Stock | — | — | 26 | Acquired |
| June 27, 2022 | AMKR | Restricted Stock Units | Common Stock | — | — | 25 | Acquired |
| Nov. 29, 2021 | AMKR | Director Stock Option (Right-to-Buy) | Common Stock (20,000) | $7.31 | May 15, 2029 | 20,000 | Disposed |
| May 25, 2021 | AMKR | Director Stock Option (Right-to-Buy) | Common Stock (20,000) | $9.82 | May 19, 2031 | 20,000 | Disposed |
| May 18, 2021 | AMKR | Director Stock Option (Right-to-Buy) | Common Stock (20,000) | $19.39 | May 18, 2031 | 20,000 | Acquired |
| May 19, 2020 | AMKR | Director Stock Option (Right to Buy) | Common Stock (20,000) | $9.83 | May 19, 2020 | 20,000 | Acquired |
| May 15, 2019 | AMKR | Director Stock Option (Right to Buy) | Amkor Technology, Inc. Common Stock (20,000) | $7.31 | May 15, 2029 | 20,000 | Acquired |
| May 1, 2018 | AMKR | Director Stock Option (Right to Buy) | Amkor Technology, Inc. (20,000) | $8.51 | May 1, 2018 | 20,000 | Acquired |
| March 9, 2018 | AMKR | Director Stock Option (Right to Buy) | Amkor Technology, Inc. (20,000) | $6.81 | May 5, 2025 | 20,000 | Disposed |
| March 9, 2018 | AMKR | Director Stock Opion (Right to Buy) | Amkor Technology, Inc. (20,000) | $4.50 | May 8, 2023 | 20,000 | Disposed |
| March 9, 2018 | AMKR | Director Stock Option (Right to Buy) | Amkor Technology, Inc. (20,000) | $5.66 | May 4, 2026 | 20,000 | Disposed |
| May 18, 2017 | AMKR | Director Stock Option (Right to Buy) | Amkor Technology, Inc. (13,402) | $4.58 | May 8, 2022 | 13,402 | Disposed |
| May 12, 2017 | AMKR | Director Stock Option to Buy | Amkor Technology, Inc. (6,598) | $4.58 | May 8, 2022 | 6,598 | Disposed |
| May 12, 2017 | AMKR | Director Stock Option to Buy | Amkor Technology, Inc. (3,402) | $6.46 | May 3, 2021 | 3,402 | Disposed |
| May 11, 2017 | AMKR | Director Stock Option (Right to Buy) | Amkor Technology, Inc. (16,598) | $6.46 | May 3, 2021 | 16,598 | Disposed |
| May 11, 2017 | AMKR | (Director Stock Option (Right to Buy) | Amkor Technology, Inc. (10,000) | $10.97 | Aug. 6, 2017 | 10,000 | Disposed |
| May 11, 2017 | AMKR | Director Stock Option (Right to Buy) | Amkor Technology, Inc. (20,000) | $7.71 | May 3, 2020 | 20,000 | Disposed |
| May 2, 2017 | AMKR | Director Stock Option (Right to Buy) | Amkor Technology, Inc. Common Stock (20,000) | $11.71 | May 2, 2027 | 20,000 | Acquired |
| Jan. 2, 2017 | ISSC | Restricted Stock Units | Common Stock (14,234) | — | — | 14,234 | Disposed |
| May 4, 2016 | AMKR | Director Stock Option (Right to Buy) | Amkor Technology, Inc. Common Stock (20,000) | $5.66 | May 5, 2026 | 20,000 | Acquired |
| Nov. 12, 2015 | ISSC | Restricted Stock Units [F1] | Common Stock (14,234) | — | — | 14,234 | Acquired |
| May 5, 2015 | AMKR | Director Stock Option (Right to Buy) | Amkor Technology, Inc. Common Stock (20,000) | $6.81 | May 5, 2025 | 20,000 | Acquired |
| June 6, 2014 | AMKR | Director Stock Option (right to buy) | Common Stock (20,000) | $4.50 | May 4, 2019 | 20,000 | Disposed |
| June 6, 2014 | AMKR | Director Stock Option (right to buy) | Common Stock (10,000) | $5.82 | Aug. 8, 2016 | 10,000 | Disposed |
| June 6, 2014 | AMKR | Director Stock Option (right to buy) | Common Stock (10,000) | $5.03 | Aug. 24, 2015 | 10,000 | Disposed |
| June 6, 2014 | AMKR | Director Stock Option (right to buy) | Common Stock (10,000) | $4.11 | July 30, 2014 | 10,000 | Disposed |
| May 13, 2014 | AMKR | Director Stock Option (Right to Buy) | Amkor Technology, Inc. Common Stock (20,000) | $9.17 | May 13, 2024 | 20,000 | Acquired |
| May 8, 2013 | AMKR | Director Stock Option (Right to Buy) | Amkor Technology, Inc. Common Stock (20,000) | $4.50 | May 8, 2023 | 20,000 | Acquired |
| May 8, 2012 | AMKR | Director Stock Option (Right to Buy) | Amkor Technology, Inc. Common Stock (20,000) | $4.58 | May 8, 2022 | 20,000 | Acquired |
| May 3, 2011 | AMKR | Director Stock Option (Right to Buy) | Amkor Technology, Inc. Common Stock (20,000) | $6.46 | May 3, 2021 | 20,000 | Acquired |
| May 3, 2010 | AMKR | Director Stock Option (Right to Buy) | Amkor Technology, Inc. Common Stock (20,000) | $7.71 | May 3, 2020 | 20,000 | Acquired |
| May 4, 2009 | AMKR | Director Stock Option (Right to Buy) | Amkor Technology, Inc. Common Stock (20,000) | $4.50 | May 4, 2019 | 20,000 | Acquired |
| July 3, 2008 | AMKR | Director Stock Option (Right to Buy) | Amkor Technology, Inc. (15,000) | $9.14 | July 17, 2008 | 15,000 | Disposed |
| May 5, 2008 | AMKR | Director Stock Option (Right to Buy) | Amkor Technology, Inc., Common Stock (20,000) | $11.88 | May 5, 2018 | 20,000 | Acquired |
| Aug. 6, 2007 | AMKR | Director Stock Option (right to buy) | Amkor Technology, Inc. Common Stock (10,000) | $10.97 | Aug. 6, 2017 | 10,000 | Acquired |
| Aug. 8, 2006 | AMKR | Director Stock Option (right to buy) | Amkor Technology, Inc. Common Stock (10,000) | $5.82 | Aug. 8, 2016 | 10,000 | Disposed |
| Aug. 24, 2005 | AMKR | Director Stock Option (Right to Buy) | Amkor Technolgoy, Inc. Common Stock (10,000) | $5.02 | Aug. 24, 2015 | 10,000 | Acquired |
| July 29, 2004 | AMKR | Director Stock Option (Right to Buy) | Amkor Technology, Inc. Common Stock (10,000) | $4.11 | July 29, 2014 | 10,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).