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Howard H. Xia
Insider
First SEC filing: Aug. 19, 2014 · Latest: Aug. 19, 2014
Insider at
Insider transactions
0 buys (P)
11 sells (S)
Net: $-2,248,303
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 |
|---|---|---|---|---|---|---|---|---|---|
| May 11, 2026 | COHR | M | 2,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| May 11, 2026 | COHR | S | 500 | $368.00 | $184,000 | 50,298 Direct | -0.98% | Disposed | -8.1% (price as of 2026-10-06) |
| May 11, 2026 | COHR | S | 500 | $358.00 | $179,000 | 50,798 Direct | -0.97% | Disposed | -5.5% (price as of 2026-10-06) |
| May 11, 2026 | COHR | S | 500 | $348.00 | $174,000 | 51,298 Direct | -0.97% | Disposed | -2.8% (price as of 2026-10-06) |
| May 11, 2026 | COHR | S | 500 | $344.00 | $172,000 | 51,798 Direct | -0.96% | Disposed | -1.6% (price as of 2026-10-06) |
| May 11, 2026 | COHR | M | 2,000 | $21.67 | $43,340 | 52,298 Direct | +3.98% | Acquired | 1461.4% (price as of 2026-10-06) |
| March 17, 2026 | COHR | M | 3,240 | · | · | 2,000 Direct | -61.83% | Disposed | (price as of 2026-10-06) |
| March 17, 2026 | COHR | S | 1,240 | $236.22 | $292,913 | 50,298 Direct | -2.41% | Disposed | 43.2% (price as of 2026-10-06) |
| March 17, 2026 | COHR | S | 1,000 | $244.46 | $244,460 | 51,538 Direct | -1.90% | Disposed | 38.4% (price as of 2026-10-06) |
| March 17, 2026 | COHR | S | 1,000 | $245.57 | $245,570 | 52,538 Direct | -1.87% | Disposed | 37.8% (price as of 2026-10-06) |
| March 17, 2026 | COHR | M | 3,240 | $21.67 | $70,211 | 53,538 Direct | +6.44% | Acquired | 1461.4% (price as of 2026-10-06) |
| March 16, 2026 | COHR | M | 1,000 | · | · | 5,240 Direct | -16.03% | Disposed | (price as of 2026-10-06) |
| March 16, 2026 | COHR | S | 1,000 | $258.00 | $258,000 | 50,298 Direct | -1.95% | Disposed | 31.1% (price as of 2026-10-06) |
| March 16, 2026 | COHR | M | 1,000 | $21.67 | $21,670 | 51,298 Direct | +1.99% | Acquired | 1461.4% (price as of 2026-10-06) |
| Feb. 11, 2026 | COHR | A | 279 | · | · | 50,298 Direct | +0.56% | Acquired | (price as of 2026-10-06) |
| Dec. 2, 2025 | COHR | M | 2,000 | · | · | 6,240 Direct | -24.27% | Disposed | (price as of 2026-10-06) |
| Dec. 2, 2025 | COHR | S | 1,000 | $172.00 | $172,000 | 50,019 Direct | -1.96% | Disposed | 96.7% (price as of 2026-10-06) |
| Dec. 2, 2025 | COHR | S | 1,000 | $168.00 | $168,000 | 51,019 Direct | -1.92% | Disposed | 101.4% (price as of 2026-10-06) |
| Dec. 2, 2025 | COHR | M | 2,000 | $21.67 | $43,340 | 52,019 Direct | +4.00% | Acquired | 1461.4% (price as of 2026-10-06) |
| Nov. 28, 2025 | COHR | M | 1,000 | $21.67 | $21,670 | 51,019 Direct | +2.00% | Acquired | 1461.4% (price as of 2026-10-06) |
| Nov. 28, 2025 | COHR | S | 1,000 | $158.36 | $158,360 | 50,019 Direct | -1.96% | Disposed | 113.7% (price as of 2026-10-06) |
| Nov. 28, 2025 | COHR | M | 1,000 | · | · | 8,240 Direct | -10.82% | Disposed | (price as of 2026-10-06) |
| Aug. 28, 2025 | COHR | A | 2,272 | · | · | 50,019 Direct | +4.76% | Acquired | (price as of 2026-10-06) |
| June 16, 2025 | COHR | M | 1,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| June 16, 2025 | COHR | S | 1,000 | $80.88 | $80,880 | 47,747 Direct | -2.05% | Disposed | 318.3% (price as of 2026-10-06) |
| June 16, 2025 | COHR | M | 1,000 | $17.84 | $17,840 | 48,747 Direct | +2.09% | Acquired | 1796.6% (price as of 2026-10-06) |
| June 11, 2025 | COHR | M | 1,000 | · | · | 1,000 Direct | -50.00% | Disposed | (price as of 2026-10-06) |
| June 11, 2025 | COHR | S | 1,000 | $83.00 | $83,000 | 47,747 Direct | -2.05% | Disposed | 307.7% (price as of 2026-10-06) |
| June 11, 2025 | COHR | M | 1,000 | $17.84 | $17,840 | 48,747 Direct | +2.09% | Acquired | 1796.6% (price as of 2026-10-06) |
| May 21, 2025 | COHR | M | 1,000 | · | · | 2,000 Direct | -33.33% | Disposed | (price as of 2026-10-06) |
| May 21, 2025 | COHR | S | 1,000 | $81.00 | $81,000 | 47,747 Direct | -2.05% | Disposed | 317.7% (price as of 2026-10-06) |
| May 21, 2025 | COHR | M | 1,000 | $17.84 | $17,840 | 48,747 Direct | +2.09% | Acquired | 1796.6% (price as of 2026-10-06) |
| May 12, 2025 | COHR | M | 2,000 | · | · | 3,000 Direct | -40.00% | Disposed | (price as of 2026-10-06) |
| May 12, 2025 | COHR | S | 1,000 | $78.00 | $78,000 | 47,747 Direct | -2.05% | Disposed | 333.8% (price as of 2026-10-06) |
| May 12, 2025 | COHR | S | 1,000 | $76.84 | $76,840 | 48,747 Direct | -2.01% | Disposed | 340.3% (price as of 2026-10-06) |
| May 12, 2025 | COHR | M | 2,000 | $17.84 | $35,680 | 49,747 Direct | +4.19% | Acquired | 1796.6% (price as of 2026-10-06) |
| May 9, 2025 | COHR | M | 1,000 | · | · | 5,000 Direct | -16.67% | Disposed | (price as of 2026-10-06) |
| May 9, 2025 | COHR | S | 1,000 | $72.68 | $72,680 | 47,747 Direct | -2.05% | Disposed | 365.5% (price as of 2026-10-06) |
| May 9, 2025 | COHR | M | 1,000 | $17.84 | $17,840 | 48,747 Direct | +2.09% | Acquired | 1796.6% (price as of 2026-10-06) |
| Dec. 4, 2024 | COHR | M | 2,000 | $17.84 | $35,680 | 49,747 Direct | +4.19% | Acquired | 1796.6% (price as of 2026-10-06) |
| Dec. 4, 2024 | COHR | S | 1,000 | $109.45 | $109,450 | 48,747 Direct | -2.01% | Disposed | 209.1% (price as of 2026-10-06) |
| Dec. 4, 2024 | COHR | S | 1,000 | $112.00 | $112,000 | 47,747 Direct | -2.05% | Disposed | 202.1% (price as of 2026-10-06) |
| Dec. 4, 2024 | COHR | M | 2,000 | · | · | 6,000 Direct | -25.00% | Disposed | (price as of 2026-10-06) |
| Dec. 3, 2024 | COHR | M | 970 | $17.84 | $17,305 | 48,717 Direct | +2.03% | Acquired | 1796.6% (price as of 2026-10-06) |
| Dec. 3, 2024 | COHR | S | 970 | $106.00 | $102,820 | 47,747 Direct | -1.99% | Disposed | 219.2% (price as of 2026-10-06) |
| Dec. 3, 2024 | COHR | M | 970 | · | · | 8,000 Direct | -10.81% | Disposed | (price as of 2026-10-06) |
| Aug. 29, 2024 | COHR | A | 2,831 | · | · | 47,747 Direct | +6.30% | Acquired | (price as of 2026-10-06) |
| May 23, 2024 | COHR | M | 1,000 | $13.99 | $13,990 | 45,916 Direct | +2.23% | Acquired | 2318.6% (price as of 2026-10-06) |
| May 23, 2024 | COHR | S | 1,000 | $60.83 | $60,830 | 44,916 Direct | -2.18% | Disposed | 456.2% (price as of 2026-10-06) |
| May 23, 2024 | COHR | M | 1,000 | $13.99 | $13,990 | 45,916 Direct | +2.23% | Acquired | 2318.6% (price as of 2026-10-06) |
| May 23, 2024 | COHR | S | 1,000 | $61.00 | $61,000 | 44,916 Direct | -2.18% | Disposed | 454.7% (price as of 2026-10-06) |
| May 23, 2024 | COHR | M | 1,000 | · | · | 1,000 Direct | -50.00% | Disposed | (price as of 2026-10-06) |
| May 23, 2024 | COHR | M | 1,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| May 16, 2024 | COHR | M | 1,000 | $13.99 | $13,990 | 45,916 Direct | +2.23% | Acquired | 2318.6% (price as of 2026-10-06) |
| May 16, 2024 | COHR | S | 1,000 | $59.00 | $59,000 | 44,916 Direct | -2.18% | Disposed | 473.5% (price as of 2026-10-06) |
| May 16, 2024 | COHR | M | 1,000 | · | · | 2,000 Direct | -33.33% | Disposed | (price as of 2026-10-06) |
| May 15, 2024 | COHR | M | 1,000 | $13.99 | $13,990 | 45,916 Direct | +2.23% | Acquired | 2318.6% (price as of 2026-10-06) |
| May 15, 2024 | COHR | S | 1,000 | $58.00 | $58,000 | 44,916 Direct | -2.18% | Disposed | 483.4% (price as of 2026-10-06) |
| May 15, 2024 | COHR | M | 1,000 | · | · | 3,000 Direct | -25.00% | Disposed | (price as of 2026-10-06) |
| Dec. 14, 2023 | COHR | M | 3,440 | $13.99 | $48,126 | 48,356 Direct | +7.66% | Acquired | 2318.6% (price as of 2026-10-06) |
| Dec. 14, 2023 | COHR | S | 3,440 | $42.80 | $147,232 | 44,916 Direct | -7.11% | Disposed | 690.6% (price as of 2026-10-06) |
| Dec. 14, 2023 | COHR | M | 3,440 | · | · | 4,000 Direct | -46.24% | Disposed | (price as of 2026-10-06) |
| Dec. 6, 2023 | COHR | M | 4,000 | $13.99 | $55,960 | 48,916 Direct | +8.91% | Acquired | 2318.6% (price as of 2026-10-06) |
| Dec. 6, 2023 | COHR | S | 4,000 | $40.29 | $161,160 | 44,916 Direct | -8.18% | Disposed | 739.8% (price as of 2026-10-06) |
| Dec. 6, 2023 | COHR | M | 4,000 | · | · | 7,440 Direct | -34.97% | Disposed | (price as of 2026-10-06) |
| Aug. 31, 2023 | COHR | A | 5,315 | · | · | 44,916 Direct | +13.42% | Acquired | (price as of 2026-10-06) |
| March 1, 2023 | COHR | M | 2,270 | $19.37 | $43,970 | 41,871 Direct | +5.73% | Acquired | 1646.8% (price as of 2026-10-06) |
| March 1, 2023 | COHR | S | 2,270 | $43.17 | $97,996 | 39,601 Direct | -5.42% | Disposed | 683.8% (price as of 2026-10-06) |
| March 1, 2023 | COHR | M | 2,270 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Aug. 28, 2022 | COHR | A | 3,855 | · | · | 39,601 Direct | +10.78% | Acquired | (price as of 2026-10-06) |
| March 29, 2022 | COHR | M | 6,000 | $19.37 | $116,220 | 41,746 Direct | +16.79% | Acquired | 1646.8% (price as of 2026-10-06) |
| March 29, 2022 | COHR | S | 3,000 | $73.90 | $221,700 | 38,746 Direct | -7.19% | Disposed | 357.9% (price as of 2026-10-06) |
| March 29, 2022 | COHR | S | 3,000 | $74.90 | $224,700 | 35,746 Direct | -7.74% | Disposed | 351.7% (price as of 2026-10-06) |
| March 29, 2022 | COHR | M | 6,000 | · | · | 2,270 Direct | -72.55% | Disposed | (price as of 2026-10-06) |
| Aug. 28, 2021 | COHR | A | 3,144 | · | · | 35,746 Direct | +9.64% | Acquired | (price as of 2026-10-06) |
| Nov. 12, 2020 | COHR | M | 3,620 | $18.93 | $68,527 | 36,222 Direct | +11.10% | Acquired | 1687.4% (price as of 2026-10-06) |
| Nov. 12, 2020 | COHR | S | 3,620 | $58.77 | $212,747 | 32,602 Direct | -9.99% | Disposed | 475.7% (price as of 2026-10-06) |
| Nov. 12, 2020 | COHR | M | 3,620 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Nov. 11, 2020 | COHR | M | 5,000 | $18.93 | $94,650 | 37,602 Direct | +15.34% | Acquired | 1687.4% (price as of 2026-10-06) |
| Nov. 11, 2020 | COHR | S | 5,000 | $58.38 | $291,900 | 32,602 Direct | -13.30% | Disposed | 479.6% (price as of 2026-10-06) |
| Nov. 11, 2020 | COHR | M | 5,000 | · | · | 3,620 Direct | -58.00% | Disposed | (price as of 2026-10-06) |
| Aug. 28, 2020 | COHR | A | 3,838 | · | · | 32,602 Direct | +13.34% | Acquired | (price as of 2026-10-06) |
| Feb. 12, 2020 | COHR | M | 9,300 | $17.53 | $163,029 | 38,064 Direct | +32.33% | Acquired | 1830.2% (price as of 2026-10-06) |
| Feb. 12, 2020 | COHR | S | 9,300 | $38.00 | $353,400 | 28,764 Direct | -24.43% | Disposed | 790.4% (price as of 2026-10-06) |
| Feb. 12, 2020 | COHR | M | 9,300 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Aug. 28, 2019 | COHR | A | 2,325 | · | · | 28,764 Direct | +8.79% | Acquired | (price as of 2026-10-06) |
| Aug. 28, 2019 | COHR | A | 5,812 | · | · | 5,812 Direct | · | Acquired | (price as of 2026-10-06) |
| Aug. 28, 2018 | COHR | A | 1,608 | · | · | 26,439 Direct | +6.48% | Acquired | (price as of 2026-10-06) |
| Aug. 28, 2018 | COHR | A | 4,020 | · | · | 4,020 Direct | · | Acquired | (price as of 2026-10-06) |
| Nov. 22, 2017 | COHR | S | 4,135 | $51.58 | $213,283 | 20,831 Direct | -16.56% | Disposed | 556.0% (price as of 2026-10-06) |
| Aug. 18, 2017 | COHR | A | 2,280 | · | · | 24,966 Direct | +10.05% | Acquired | (price as of 2026-10-06) |
| Aug. 18, 2017 | COHR | A | 5,700 | · | · | 5,700 Direct | · | Acquired | (price as of 2026-10-06) |
| March 23, 2017 | COHR | S | 4,310 | $36.92 | $159,125 | 22,686 Direct | -15.97% | Disposed | 816.5% (price as of 2026-10-06) |
| Nov. 22, 2016 | COHR | S | 2,000 | $30.90 | $61,800 | 26,996 Direct | -6.90% | Disposed | 995.0% (price as of 2026-10-06) |
| Nov. 21, 2016 | COHR | S | 2,000 | $30.45 | $60,900 | 28,996 Direct | -6.45% | Disposed | 1011.2% (price as of 2026-10-06) |
| Aug. 20, 2016 | COHR | P | 3,696 | $21.67 | $80,092 | 30,996 Direct | +13.54% | Acquired | 1461.4% (price as of 2026-10-06) |
| Aug. 20, 2016 | COHR | A | 9,240 | · | · | 9,240 Direct | · | Acquired | (price as of 2026-10-06) |
| Aug. 15, 2015 | COHR | A | 8,970 | · | · | 8,970 Direct | · | Acquired | (price as of 2026-10-06) |
| Aug. 15, 2015 | COHR | A | 4,485 | $17.84 | $80,012 | 27,300 Direct | +19.66% | Acquired | 1796.6% (price as of 2026-10-06) |
| Aug. 16, 2014 | COHR | A | 11,440 | · | · | 11,440 Direct | · | Acquired | (price as of 2026-10-06) |
Showing latest 100 of 108 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 |
|---|---|---|---|---|---|---|---|
| May 11, 2026 | COHR | Option (Right to Buy) | Common Stock | $21.67 | Aug. 20, 2026 | 2,000 | Disposed |
| March 17, 2026 | COHR | Option (Right to Buy) | Common Stock | $21.67 | Aug. 20, 2026 | 3,240 | Disposed |
| March 16, 2026 | COHR | Option (Right to Buy) | Common Stock | $21.67 | Aug. 20, 2026 | 1,000 | Disposed |
| Dec. 2, 2025 | COHR | Option (Right to Buy) | Common Stock | $21.67 | Aug. 20, 2026 | 2,000 | Disposed |
| Nov. 28, 2025 | COHR | Option (Right to Buy) | Common Stock | $21.67 | Aug. 20, 2026 | 1,000 | Disposed |
| June 16, 2025 | COHR | Option (Right to buy) | Common Stock | $17.84 | Aug. 15, 2025 | 1,000 | Disposed |
| June 11, 2025 | COHR | Option (Right to buy) | Common Stock | $17.84 | Aug. 15, 2025 | 1,000 | Disposed |
| May 21, 2025 | COHR | Option (Right to buy) | Common Stock | $17.84 | Aug. 15, 2025 | 1,000 | Disposed |
| May 12, 2025 | COHR | Option (Right to buy) | Common Stock | $17.84 | Aug. 15, 2025 | 2,000 | Disposed |
| May 9, 2025 | COHR | Option (Right to buy) | Common Stock | $17.84 | Aug. 15, 2025 | 1,000 | Disposed |
| Dec. 4, 2024 | COHR | Option (Right to buy) | Common Stock | $17.84 | Aug. 15, 2025 | 2,000 | Disposed |
| Dec. 3, 2024 | COHR | Option (Right to buy) | Common Stock | $17.84 | Aug. 15, 2025 | 970 | Disposed |
| May 23, 2024 | COHR | Stock Options (Right to buy) | Common Stock | $13.99 | Aug. 16, 2024 | 1,000 | Disposed |
| May 23, 2024 | COHR | Stock Options (Right to buy) | Common Stock | $13.99 | Aug. 16, 2024 | 1,000 | Disposed |
| May 16, 2024 | COHR | Stock Options (Right to buy) | Common Stock | $13.99 | Aug. 16, 2024 | 1,000 | Disposed |
| May 15, 2024 | COHR | Stock Options (Right to buy) | Common Stock | $13.99 | Aug. 16, 2024 | 1,000 | Disposed |
| Dec. 14, 2023 | COHR | Stock Options (Right to buy) | Common Stock | $13.99 | Aug. 16, 2024 | 3,440 | Disposed |
| Dec. 6, 2023 | COHR | Stock Options (Right to buy) | Common Stock | $13.99 | Aug. 16, 2024 | 4,000 | Disposed |
| March 1, 2023 | COHR | Stock Options (Right to buy) | Common Stock | $19.37 | Aug. 17, 2023 | 2,270 | Disposed |
| March 29, 2022 | COHR | Stock Options (Right to buy) | Common Stock | $19.37 | Aug. 17, 2023 | 6,000 | Disposed |
| Nov. 12, 2020 | COHR | Option (Right to buy) | Common Stock | $18.93 | Aug. 18, 2022 | 3,620 | Disposed |
| Nov. 11, 2020 | COHR | Option (Right to buy) | Common Stock | $18.93 | Aug. 18, 2022 | 5,000 | Disposed |
| Feb. 12, 2020 | COHR | Option (Right to Buy) | Common Stock | $17.53 | Aug. 20, 2021 | 9,300 | Disposed |
| Aug. 28, 2019 | COHR | Option (Right to Buy) | Common Stock | $36.56 | Aug. 28, 2029 | 5,812 | Acquired |
| Aug. 28, 2018 | COHR | Option (Right to Buy) | Common Stock | $49.90 | Aug. 28, 2028 | 4,020 | Acquired |
| Aug. 18, 2017 | COHR | Option (Right to Buy) | Common Stock | $35.25 | Aug. 18, 2027 | 5,700 | Acquired |
| Aug. 20, 2016 | COHR | Option (Right to Buy) | Common Stock | $21.67 | Aug. 20, 2026 | 9,240 | Acquired |
| Aug. 15, 2015 | COHR | Option (Right to buy) | Common Stock | $17.84 | Aug. 15, 2025 | 8,970 | Acquired |
| Aug. 16, 2014 | COHR | Option (Right to buy) | Common Stock | $13.99 | Aug. 16, 2024 | 11,440 | Acquired |
| Aug. 17, 2013 | COHR | Option (Right to buy) | Common Stock | $19.37 | Aug. 17, 2023 | 8,270 | Acquired |
| Aug. 18, 2012 | COHR | Option (Right to buy) | Common Stock | $18.93 | Aug. 18, 2022 | 8,620 | Acquired |
| Aug. 20, 2011 | COHR | Option (Right to buy) | Common Stock | $17.53 | Aug. 20, 2021 | 9,300 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).