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Amphastar Pharma (NASDAQ:AMPH) Stock, Insider Trading Activity
Amphastar Pharma: Insider buying and selling updated today.
What is Insider Activity?
Insider trading activity involves company insiders, such as executives, directors, and employees, engaging in transactions of their own company's stock. Insiders' buy and sell transactions provide valuable insights into their confidence in the company's future performance.
What are Amphastar Pharmaceuticals Inc Insiders Doing?
Insiders have report no purchases/sales in the last 30 days.
Notable Recent Insider Buys and Sales
- On May 2, 2024, Floyd Petersen, the company's - sold 500 shares for $41.67 each.
- On June 11, 2024, Floyd Petersen, the company's - sold 3K shares for $41.4 each.
- On June 28, 2024, William J Peters, the company's CFO, EVP & TREASURER sold 3.6K shares for $40.93 each.
Ownership Statistics for Amphastar Pharmaceuticals Inc
Institutional Shares Held
27.810M
Institutional Percentage Held
56.9%
| Jun 28, 2024 | William J Peters | CFO, EVP & TREASURER | -3.60K | $40.93 | -$147.17K | SELL | -3.68% | 94.10K | Jun 27 | View |
| Jun 11, 2024 | Floyd Petersen | — | -3.00K | $41.40 | -$124.20K | SELL | -3.69% | 78.41K | Jun 10 | View |
| Jun 05, 2024 | Floyd Petersen | — | 2.58K | $42.65 | -$21.33K | GRANT | 3.27% | 81.41K | Jun 03 | View |
| May 02, 2024 | Floyd Petersen | — | -500.00 | $41.67 | -$20.84K | SELL | -0.63% | 78.83K | May 01 | View |
| Apr 02, 2024 | Floyd Petersen | — | -500.00 | $43.43 | -$21.71K | SELL | -0.63% | 79.33K | Apr 01 | View |
| Mar 08, 2024 | William J Peters | CFO, EVP & TREASURER | -11.50K | $28.89 | -$844.30K | SELL | -9.52% | 109.30K | Mar 06 | View |
| Mar 06, 2024 | MICHAEL ZASLOFF | — | -12.50K | $47.18 | -$589.72K | SELL | -36.95% | 21.33K | Mar 05 | View |
| Mar 04, 2024 | Floyd Petersen | — | -500.00 | $45.69 | -$22.85K | SELL | -0.62% | 79.83K | Mar 01 | View |
| Feb 02, 2024 | Floyd Petersen | DIRECTOR | -500.00 | $53.10 | -$26.55K | SELL | -0.62% | 80.33K | Feb 01 | View |
| Jan 11, 2024 | Mary LuoJack Zhang | COO,CHIEF SCIENTIST & CHAIRMAN, CEO & CHIEF SCIENTIFIC OFFICER | -131.39K | $54.59 | -$7.17M | SELL | -10.59% | 1.11M | Jan 10 | View |
| Jan 10, 2024 | Mary LuoJack Zhang | COO,CHIEF SCIENTIST & CHAIRMAN, CEO & CHIEF SCIENTIFIC OFFICER | -219.80K | $58.23 | -$12.80M | SELL | -15.05% | 1.24M | Jan 08 - Jan 09 | View |
| Jan 03, 2024 | Floyd Petersen | DIRECTOR | -500.00 | $61.37 | -$30.68K | SELL | -0.61% | 80.83K | Jan 02 | View |
| Dec 05, 2023 | Rong Zhou | SENIOR EVP, PRODUCTION CENTER | 0.00 | $37.12 | -$343.15K | SELL-OPTIONS | 0.00% | 117.42K | Dec 01 - Dec 04 | View |
| Dec 04, 2023 | Floyd Petersen | DIRECTOR | -500.00 | $57.90 | -$28.95K | SELL | -0.61% | 81.33K | Dec 01 | View |
| Nov 20, 2023 | RICHARD PRINS | DIRECTOR | -5.00K | $55.86 | -$223.45K | SELL | -13.93% | 30.89K | Nov 17 | View |
| Nov 16, 2023 | William J Peters | CFO, EVP & TREASURER | 0.00 | $35.64 | -$2.37M | SELL-OPTIONS | 0.00% | 101.36K | Nov 14 | View |
| Nov 15, 2023 | RICHARD PRINS | DIRECTOR | -5.00K | $52.50 | -$262.50K | SELL | -12.23% | 35.90K | Nov 13 | View |
| Nov 15, 2023 | Gayle Deflin | DIRECTOR | -4.16K | $55.45 | -$230.84K | SELL | -60.52% | 2.72K | Nov 14 | View |
| Nov 02, 2023 | Floyd Petersen | DIRECTOR | -500.00 | $45.30 | -$22.65K | SELL | -0.61% | 81.83K | Nov 01 | View |
| Oct 03, 2023 | Floyd Petersen | DIRECTOR | -500.00 | $45.78 | -$22.89K | SELL | -0.60% | 82.33K | Oct 02 | View |
| Sep 08, 2023 | William J Peters | CFO, EVP & TREASURER | -4.24K | $34.34 | -$2.19M | SELL | -4.02% | 101.36K | Sep 06 | View |
| Aug 29, 2023 | Yakob Liawatidewi | EVP CORP ADMIN CENTER | 0.00 | $33.99 | -$1.10M | SELL-OPTIONS | 0.00% | 72.13K | Aug 28 | View |
| Aug 21, 2023 | RICHARD PRINS | DIRECTOR | -2.00K | $52.50 | -$105.01K | SELL | -4.66% | 40.90K | Aug 18 | View |
| Aug 16, 2023 | MICHAEL ZASLOFF | DIRECTOR | -12.76K | $57.22 | -$730.03K | SELL | -27.39% | 33.83K | Aug 15 | View |
| Aug 16, 2023 | RICHARD PRINS | DIRECTOR | -4.16K | $57.39 | -$238.91K | SELL | -8.85% | 42.90K | Aug 15 | View |
| Jun 20, 2023 | Rong Zhou | EVP, PRODUCTION CENTER | 14.38K | $33.21 | $24.73K | SELL-OPTIONS | 15.41% | 107.69K | Jun 15 | View |
| Jun 20, 2023 | William J Peters | CFO, EVP & TREASURER | 0.00 | $35.32 | -$1.15M | SELL-OPTIONS | 0.00% | 105.60K | Jun 15 | View |
| Jun 14, 2023 | Rong Zhou | EVP, PRODUCTION CENTER | 0.00 | $31.32 | -$169.20K | SELL-OPTIONS | 0.00% | 93.31K | Jun 13 | View |
| Jun 05, 2023 | William J Peters | CFO, EVP & TREASURER | 0.00 | $29.85 | -$363.01K | SELL-OPTIONS | 0.00% | 105.60K | Jun 02 | View |
| Jun 05, 2023 | Howard Lee | DIRECTOR | 0.00 | $30.86 | -$472.59K | SELL-OPTIONS | 0.00% | 142.94K | Jun 01 | View |
| May 22, 2023 | William J Peters | CFO, EVP & TREASURER | -378.00 | $28.85 | -$342.19K | SELL | -0.36% | 104.77K | May 18 - May 19 | View |
| May 19, 2023 | Rong Zhou | EVP, PRODUCTION CENTER | 0.00 | $29.30 | -$298.05K | SELL-OPTIONS | 0.00% | 92.60K | May 18 | View |
| May 19, 2023 | Gayle Deflin | DIRECTOR | -4.52K | $44.01 | -$198.89K | SELL | -52.05% | 4.16K | May 18 | View |
| May 18, 2023 | Floyd Petersen | DIRECTOR | -5.00K | $43.13 | -$215.66K | SELL | -5.87% | 80.12K | May 17 | View |
| May 17, 2023 | Gayle Deflin | DIRECTOR | -1.50K | $43.15 | -$64.73K | SELL | -14.73% | 8.68K | May 15 | View |
| May 16, 2023 | MICHAEL ZASLOFF | DIRECTOR | -7.50K | $42.18 | -$316.33K | SELL | -14.60% | 43.87K | May 15 | View |
| May 16, 2023 | RICHARD PRINS | DIRECTOR | -3.00K | $29.74 | -$260.92K | SELL | -6.34% | 44.34K | May 12 - May 15 | View |
| Apr 18, 2023 | William J Peters | CFO, EVP & TREASURER | 0.00 | $27.85 | -$163.33K | SELL-OPTIONS | 0.00% | 105.15K | Apr 17 | View |
| Apr 14, 2023 | Yakob Liawatidewi | EVP CORP ADMIN CENTER | 0.00 | $30.90 | -$245.22K | SELL-OPTIONS | 0.00% | 71.67K | Apr 13 | View |
| Apr 14, 2023 | William J Peters | CFO, EVP & TREASURER | 0.00 | $27.85 | -$141.17K | SELL-OPTIONS | 0.00% | 105.15K | Apr 13 | View |
| Apr 12, 2023 | Yakob Liawatidewi | EVP CORP ADMIN CENTER | 0.00 | $30.12 | -$98.85K | SELL-OPTIONS | 0.00% | 71.67K | Apr 10 | View |
| Apr 12, 2023 | William J Peters | CFO, EVP & TREASURER | 0.00 | $26.85 | -$270.86K | SELL-OPTIONS | 0.00% | 105.15K | Apr 10 | View |
| Apr 04, 2023 | Floyd Petersen | DIRECTOR | -491.00 | $37.72 | -$18.52K | SELL | -0.57% | 85.12K | Apr 03 | View |
| Mar 17, 2023 | William J Peters | CFO, EVP & TREASURER | -10.23K | $25.74 | -$518.22K | SELL | -8.22% | 114.31K | Mar 15 | View |
| Mar 03, 2023 | William J Peters | CFO, EVP & TREASURER | 0.00 | $23.83 | -$274.35K | SELL-OPTIONS | 0.00% | 100.61K | Mar 01 | View |
| Mar 02, 2023 | Floyd Petersen | DIRECTOR | -500.00 | $36.70 | -$18.35K | SELL | -0.58% | 85.61K | Mar 01 | View |
| Feb 02, 2023 | Floyd Petersen | DIRECTOR | -500.00 | $30.35 | -$15.18K | SELL | -0.58% | 86.11K | Feb 01 | View |
| Jan 04, 2023 | Floyd Petersen | DIRECTOR | -500.00 | $27.94 | -$13.97K | SELL | -0.57% | 86.61K | Jan 03 | View |
| Dec 02, 2022 | Floyd Petersen | DIRECTOR | -500.00 | $30.13 | -$15.07K | SELL | -0.57% | 87.11K | Dec 01 | View |
| Nov 02, 2022 | Floyd Petersen | DIRECTOR | -500.00 | $31.13 | -$15.57K | SELL | -0.57% | 87.61K | Nov 01 | View |
| Oct 04, 2022 | Floyd Petersen | DIRECTOR | -500.00 | $28.59 | -$14.30K | SELL | -0.56% | 88.11K | Oct 03 | View |
| Sep 02, 2022 | Floyd Petersen | DIRECTOR | -500.00 | $29.44 | -$14.72K | SELL | -0.56% | 88.61K | Sep 01 | View |
| Aug 10, 2022 | William J Peters | CFO, EVP & TREASURER | 0.00 | $25.85 | -$250.00K | SELL-OPTIONS | 0.00% | 100.48K | Aug 09 | View |
| Aug 10, 2022 | Yakob Liawatidewi | EVP CORP ADMIN CENTER | 0.00 | $29.08 | -$149.74K | SELL-OPTIONS | 0.00% | 64.07K | Aug 08 - Aug 09 | View |
| Aug 02, 2022 | Floyd Petersen | DIRECTOR | -500.00 | $37.48 | -$18.74K | SELL | -0.56% | 89.11K | Aug 01 | View |
| Jul 19, 2022 | Diane Gerst | DIRECTOR | 0.00 | $28.66 | -$26.07K | SELL-OPTIONS | 0.00% | 12.84K | Jul 18 | View |
| Jul 18, 2022 | Yakob Liawatidewi | EVP CORP ADMIN CENTER | 0.00 | $28.22 | -$182.62K | SELL-OPTIONS | 0.00% | 64.07K | Jul 15 | View |
| Jul 12, 2022 | Diane Gerst | DIRECTOR | 0.00 | $28.17 | -$24.60K | SELL-OPTIONS | 0.00% | 12.84K | Jul 11 | View |
| Jul 06, 2022 | Diane Gerst | DIRECTOR | 0.00 | $27.54 | -$27.06K | SELL-OPTIONS | 0.00% | 12.84K | Jul 05 | View |
| Jul 05, 2022 | Floyd Petersen | DIRECTOR | -500.00 | $34.78 | -$17.39K | SELL | -0.55% | 89.61K | Jul 01 | View |
| Jul 05, 2022 | Diane Gerst | DIRECTOR | 0.00 | $27.52 | -$76.94K | SELL-OPTIONS | 0.00% | 12.84K | Jun 30 | View |
| Jul 01, 2022 | William J Peters | CFO, EVP & TREASURER | 0.00 | $24.95 | -$367.72K | SELL-OPTIONS | 0.00% | 100.48K | Jun 30 | View |
| Jun 22, 2022 | William J Peters | CFO, EVP & TREASURER | -5.51K | $32.05 | -$176.68K | SELL | -5.20% | 100.48K | Jun 17 | View |
| Jun 07, 2022 | Howard Lee | DIRECTOR | 0.00 | $27.45 | -$212.78K | SELL-OPTIONS | 0.00% | 138.78K | Jun 06 | View |
| Jun 02, 2022 | Floyd Petersen | DIRECTOR | -500.00 | $37.00 | -$18.50K | SELL | -0.58% | 85.94K | Jun 01 | View |
| May 25, 2022 | Howard Lee | DIRECTOR | 0.00 | $26.02 | -$178.22K | SELL-OPTIONS | 0.00% | 138.78K | May 23 | View |
| May 23, 2022 | Jack ZhangMary Luo | CEO & CHIEF SCIENTIFIC OFFICER | -10.65K | $34.21 | -$364.37K | SELL | -0.50% | 2.11M | May 20 | View |
| May 20, 2022 | Jack ZhangMary Luo | CEO & CHIEF SCIENTIFIC OFFICER | -108.78K | $34.00 | -$3.70M | SELL | -4.88% | 2.12M | May 18 - May 19 | View |
| May 19, 2022 | Floyd Petersen | DIRECTOR | 10.37K | $26.08 | -$647.27 | SELL-OPTIONS | 13.63% | 86.44K | May 18 | View |
| May 18, 2022 | Jack ZhangMary Luo | CEO & CHIEF SCIENTIFIC OFFICER | -118.44K | $35.75 | -$4.23M | SELL | -5.05% | 2.23M | May 16 - May 17 | View |
| May 17, 2022 | MICHAEL ZASLOFF | DIRECTOR | 0.00 | $26.36 | -$190.42K | SELL-OPTIONS | 0.00% | 47.21K | May 16 | View |
| May 03, 2022 | Floyd Petersen | DIRECTOR | -295.00 | $35.18 | -$10.38K | SELL | -0.39% | 76.08K | May 02 | View |
| Apr 04, 2022 | Floyd Petersen | DIRECTOR | -500.00 | $36.69 | -$18.34K | SELL | -0.65% | 76.37K | Apr 01 | View |
| Mar 18, 2022 | William J Peters | CFO, EVP & TREASURER | -9.16K | $24.20 | -$1.31M | SELL | -8.02% | 104.99K | Mar 16 - Mar 17 | View |
| Mar 17, 2022 | RICHARD PRINS | DIRECTOR | 0.00 | $25.57 | -$169.11K | SELL-OPTIONS | 0.00% | 45.18K | Mar 15 | View |
| Mar 17, 2022 | William J Peters | CFO, EVP & TREASURER | 8.10K | $34.58 | -$480.31K | GRANT | 7.64% | 114.14K | Mar 15 | View |
| Mar 17, 2022 | MICHAEL ZASLOFF | DIRECTOR | 0.00 | $25.41 | -$165.97K | SELL-OPTIONS | 0.00% | 47.21K | Mar 16 | View |
| Mar 09, 2022 | William J Peters | CFO, EVP & TREASURER | 0.00 | $21.35 | -$208.42K | SELL-OPTIONS | 0.00% | 106.04K | Mar 07 | View |
| Mar 01, 2022 | Floyd Petersen | DIRECTOR | -500.00 | $27.27 | -$13.64K | SELL | -0.65% | 76.87K | Mar 01 | View |
| Mar 01, 2022 | Rong Zhou | EVP, PRODUCTION CENTER | -6.25K | $19.85 | -$304.58K | SELL | -7.66% | 75.31K | Feb 25 | View |
| Mar 01, 2022 | William J Peters | CFO, EVP & TREASURER | 0.00 | $21.71 | -$311.00K | SELL-OPTIONS | 0.00% | 106.04K | Feb 25 | View |
| Feb 09, 2022 | Rong Zhou | EVP, PRODUCTION CENTER | 0.00 | $18.85 | -$110.88K | SELL-OPTIONS | 0.00% | 81.55K | Feb 08 | View |
| Feb 09, 2022 | William J Peters | CFO, EVP & TREASURER | 0.00 | $20.95 | -$120.00K | SELL-OPTIONS | 0.00% | 106.04K | Feb 08 | View |
| Feb 02, 2022 | Floyd Petersen | DIRECTOR | -500.00 | $24.08 | -$12.04K | SELL | -0.64% | 77.37K | Feb 01 | View |
| Jan 11, 2022 | Rong Zhou | EVP, PRODUCTION CENTER | -6.93K | $18.14 | -$377.66K | SELL | -7.83% | 81.55K | Jan 10 | View |
| Jan 11, 2022 | William J Peters | CFO, EVP & TREASURER | 0.00 | $19.58 | -$494.65K | SELL-OPTIONS | 0.00% | 106.04K | Jan 07 - Jan 10 | View |
| Jan 04, 2022 | Floyd Petersen | DIRECTOR | -500.00 | $23.22 | -$11.61K | SELL | -0.64% | 77.87K | Jan 03 | View |
| Jan 04, 2022 | William J Peters | CFO, EVP & TREASURER | 0.00 | $18.90 | -$90.00K | SELL-OPTIONS | 0.00% | 106.04K | Dec 30 | View |
| Dec 23, 2021 | Floyd Petersen | DIRECTOR | -1.00K | $22.50 | -$22.50K | SELL | -1.26% | 78.37K | Dec 22 | View |
| Dec 22, 2021 | William J Peters | CFO, EVP & TREASURER | 0.00 | $18.40 | -$66.05K | SELL-OPTIONS | 0.00% | 106.04K | Dec 21 | View |
| Dec 17, 2021 | William J Peters | CFO, EVP & TREASURER | 0.00 | $18.40 | -$13.95K | SELL-OPTIONS | 0.00% | 106.04K | Dec 16 | View |
| Dec 13, 2021 | RICHARD PRINS | DIRECTOR | 0.00 | $19.23 | -$22.48K | SELL-OPTIONS | 0.00% | 45.18K | Dec 10 | View |
| Nov 23, 2021 | RICHARD PRINS | DIRECTOR | 0.00 | $19.16 | -$20.55K | SELL-OPTIONS | 0.00% | 45.18K | Nov 22 | View |
| Nov 12, 2021 | Rong Zhou | EVP, PRODUCTION CENTER | 0.00 | $16.08 | -$87.43K | SELL-OPTIONS | 0.00% | 88.12K | Nov 11 | View |
| Nov 12, 2021 | William J Peters | CFO, EVP & TREASURER | 0.00 | $16.33 | -$100.00K | SELL-OPTIONS | 0.00% | 105.69K | Nov 11 | View |
| Aug 17, 2021 | William J Peters | CFO, EVP & TREASURER | -6.59K | $19.35 | -$127.52K | SELL | -5.87% | 105.69K | Aug 16 | View |
| Aug 04, 2021 | Rong Zhou | EVP, PRODUCTION CENTER | -3.12K | $15.86 | -$130.85K | SELL | -3.42% | 88.12K | Aug 02 | View |
| Aug 03, 2021 | Yakob Liawatidewi | EVP CORP ADMIN CENTER | 0.00 | $18.04 | -$55.27K | SELL-OPTIONS | 0.00% | 56.54K | Aug 02 | View |
| Jul 27, 2021 | Rong Zhou | EVP, PRODUCTION CENTER | 0.00 | $15.68 | -$62.34K | SELL-OPTIONS | 0.00% | 91.24K | Jul 26 | View |
| Jul 22, 2021 | Rong Zhou | EVP, PRODUCTION CENTER | 0.00 | $15.53 | -$52.34K | SELL-OPTIONS | 0.00% | 91.24K | Jul 20 | View |
| Jul 16, 2021 | Yakob Liawatidewi | EVP CORP ADMIN CENTER | -498.00 | $16.64 | -$218.95K | SELL | -0.87% | 56.54K | Jul 15 | View |
| Jul 08, 2021 | William J Peters | CFO, EVP & TREASURER | 0.00 | $15.85 | -$90.44K | SELL-OPTIONS | 0.00% | 112.28K | Jul 07 | View |
| Jun 10, 2021 | Rong Zhou | EVP, PRODUCTION CENTER | -4.73K | $16.83 | -$134.43K | SELL | -4.93% | 91.24K | Jun 08 - Jun 09 | View |
| Jun 08, 2021 | RICHARD PRINS | DIRECTOR | 6.02K | $17.58 | -$23.05K | SELL-OPTIONS | 15.37% | 45.18K | Jun 04 - Jun 07 | View |
| Jun 08, 2021 | Floyd Petersen | DIRECTOR | 6.02K | $17.88 | -$46.00K | SELL-OPTIONS | 8.21% | 79.37K | Jun 07 | View |
| Jun 08, 2021 | Howard Lee | DIRECTOR | 6.02K | $17.86 | -$45.41K | SELL-OPTIONS | 4.53% | 138.93K | Jun 07 - Jun 08 | View |
| Jun 04, 2021 | Floyd Petersen | DIRECTOR | 0.00 | $17.54 | -$22.23K | SELL-OPTIONS | 0.00% | 73.35K | Jun 03 | View |
| Jun 02, 2021 | Richard Koo | DIRECTOR | 0.00 | $17.86 | -$73.67K | SELL-OPTIONS | 0.00% | 263.27K | Jun 01 | View |
| May 24, 2021 | Howard Lee | DIRECTOR | 0.00 | $18.08 | -$33.05K | SELL-OPTIONS | 0.00% | 132.91K | May 20 | View |
| May 18, 2021 | Yakob Liawatidewi | SVP CORP ADMIN CENTER | -3.19K | $15.65 | -$146.95K | SELL | -5.38% | 56.03K | May 14 - May 17 | View |
| May 17, 2021 | Rong Zhou | EVP, PRODUCTION CENTER | -6.30K | $16.97 | -$188.97K | SELL | -6.22% | 94.97K | May 13 - May 14 | View |
| May 14, 2021 | MICHAEL ZASLOFF | DIRECTOR | 0.00 | $17.88 | -$75.10K | SELL-OPTIONS | 0.00% | 41.19K | May 13 | View |
| May 13, 2021 | RICHARD PRINS | DIRECTOR | 0.00 | $17.66 | -$39.07K | SELL-OPTIONS | 0.00% | 39.16K | May 11 | View |
| May 13, 2021 | Yakob Liawatidewi | EVP CORP ADMIN CENTER | -4.59K | $15.24 | -$166.04K | SELL | -7.20% | 59.22K | May 11 - May 12 | View |
| Mar 17, 2021 | William J Peters | CFO, SVP & TREASURER | -8.42K | $19.09 | -$160.75K | SELL | -99.05% | 81.13 | Mar 15 | View |
| Feb 18, 2021 | Jack ZhangMary LuoApplied Physics Chemistry Laboratories Inc | CEO & CHIEF SCIENTIFIC OFFICER, COO,CHIEF SCIENTIST & CHAIRMAN | -30.47K | $18.59 | -$566.32K | SELL | -0.44% | 6.83M | Feb 16 - Feb 18 | View |
| Feb 12, 2021 | Jack ZhangMary LuoApplied Physics Chemistry Laboratories Inc | CEO & CHIEF SCIENTIFIC OFFICER, COO, CHIEF SCIENTIST & CHAIRMA | -48.85K | $18.93 | -$924.75K | SELL | -0.71% | 6.86M | Feb 10 - Feb 12 | View |
| Feb 09, 2021 | Jack ZhangMary LuoApplied Physics Chemistry Laboratories Inc | CEO & CHIEF SCIENTIFIC OFFICER, COO, CHIEF SCIENTIST & CHAIRMA | -40.89K | $18.92 | -$773.55K | SELL | -0.59% | 6.91M | Feb 05 - Feb 09 | View |
| Feb 05, 2021 | Jack ZhangMary LuoApplied Physics Chemistry Laboratories Inc | CEO & CHIEF SCIENTIFIC OFFICER, COO,CHIEF SCIENTIST & CHAIRMAN | -41.87K | $18.69 | -$782.34K | SELL | -0.60% | 6.95M | Feb 03 - Feb 04 | View |
| Feb 03, 2021 | Jack ZhangMary LuoApplied Physics Chemistry Laboratories Inc | CEO & CHIEF SCIENTIFIC OFFICER, COO,CHIEF SCIENTIST & CHAIRMAN | -37.93K | $18.43 | -$698.94K | SELL | -0.54% | 6.99M | Feb 01 - Feb 02 | View |
| Feb 02, 2021 | Floyd Petersen | DIRECTOR | -639.00 | $18.26 | -$11.67K | SELL | -0.86% | 73.35K | Feb 01 | View |
| Jan 20, 2021 | William J Peters | CFO, SVP & TREASURER | -6.50K | $18.67 | -$121.24K | SELL | -6.76% | 89.55K | Jan 19 | View |
| Dec 02, 2020 | Floyd Petersen | — | -500.00 | $17.87 | -$8.94K | SELL | -0.67% | 73.99K | Dec 01 | View |
| Nov 03, 2020 | Floyd Petersen | — | -500.00 | $19.84 | -$9.92K | SELL | -0.67% | 74.49K | Nov 02 | View |
| Oct 02, 2020 | Floyd Petersen | — | -500.00 | $18.89 | -$9.45K | SELL | -0.66% | 74.99K | Oct 01 | View |
| Sep 02, 2020 | Floyd Petersen | — | -500.00 | $19.90 | -$9.95K | SELL | -0.66% | 75.49K | Sep 01 | View |
| Aug 18, 2020 | David Maris | — | 1.00K | $20.26 | $20.26K | PURCHASE | 8.23% | 13.15K | Aug 14 | View |
| Aug 18, 2020 | William J Peters | — | -5.51K | $20.36 | -$112.22K | SELL | -5.45% | 95.65K | Aug 14 | View |
| Aug 12, 2020 | RICHARD PRINS | — | -6.00K | $20.33 | -$121.98K | SELL | -13.29% | 39.16K | Aug 11 | View |
| Aug 04, 2020 | Floyd Petersen | — | -500.00 | $20.62 | -$10.31K | SELL | -0.65% | 75.99K | Aug 03 | View |
| Jul 22, 2020 | Yakob Liawatidewi | — | 0.00 | $16.24 | -$99.73K | OPTION EXERCISE | 0.00% | 48.45K | Jul 20 - Jul 21 | View |
| Jul 08, 2020 | William J Peters | — | -3.66K | $16.66 | -$187.10K | OPTION EXERCISE | -3.49% | 101.16K | Jul 06 | View |
| Jul 02, 2020 | Floyd Petersen | — | -500.00 | $22.27 | -$11.14K | SELL | -0.65% | 76.49K | Jul 01 | View |
| Jun 10, 2020 | Yakob Liawatidewi | — | -7.41K | $15.67 | -$302.72K | OPTION EXERCISE | -13.23% | 48.58K | Jun 09 | View |
| Jun 05, 2020 | Rong Zhou | — | -2.97K | $15.19 | -$207.65K | OPTION EXERCISE | -3.40% | 84.24K | Jun 03 - Jun 04 | View |
| Jun 02, 2020 | Floyd Petersen | — | -500.00 | $18.97 | -$9.48K | SELL | -0.70% | 71.14K | Jun 01 | View |
| May 28, 2020 | Richard Koo | — | 0.00 | $16.65 | -$146.91K | OPTION EXERCISE | 0.00% | 257.42K | May 27 | View |
| May 27, 2020 | Howard Lee | — | 0.00 | $16.80 | -$67.43K | OPTION EXERCISE | 0.00% | 128.08K | May 22 - May 26 | View |
| May 22, 2020 | Howard Lee | — | 0.00 | $16.78 | -$92.68K | OPTION EXERCISE | 0.00% | 128.08K | May 20 - May 21 | View |
| May 18, 2020 | MICHAEL ZASLOFF | — | 0.00 | $16.56 | -$109.77K | OPTION EXERCISE | 0.00% | 35.34K | May 14 - May 15 | View |
| May 18, 2020 | Floyd Petersen | — | 0.00 | $16.66 | -$147.37K | OPTION EXERCISE | 0.00% | 71.64K | May 14 - May 15 | View |
| May 14, 2020 | MICHAEL ZASLOFF | — | 0.00 | $17.05 | -$38.90K | OPTION EXERCISE | 0.00% | 35.34K | May 12 | View |
| May 14, 2020 | RICHARD PRINS | — | 0.00 | $17.06 | -$117.86K | OPTION EXERCISE | 0.00% | 39.31K | May 12 | View |
| May 14, 2020 | Floyd Petersen | — | 0.00 | $17.16 | -$409.00 | OPTION EXERCISE | 0.00% | 71.64K | May 12 | View |
| May 05, 2020 | Floyd Petersen | — | -500.00 | $16.66 | -$8.33K | SELL | -0.69% | 71.64K | May 01 | View |
| Apr 02, 2020 | Floyd Petersen | — | -500.00 | $14.36 | -$7.18K | SELL | -0.69% | 72.14K | Apr 01 | View |
| Mar 17, 2020 | William J Peters | — | -8.88K | $14.06 | -$124.82K | TAX | -11.24% | 70.10K | Mar 13 - Mar 15 | View |
| Mar 03, 2020 | Floyd Petersen | — | -500.00 | $15.56 | -$7.78K | SELL | -0.68% | 72.64K | Mar 02 | View |
| Feb 07, 2020 | Jason Shandell | — | 0.00 | $17.07 | -$237.39K | OPTION EXERCISE | 0.00% | 138.90K | Feb 05 - Feb 07 | View |
| Feb 04, 2020 | Floyd Petersen | — | -500.00 | $19.12 | -$9.56K | SELL | -0.68% | 73.14K | Feb 03 | View |
| Jan 23, 2020 | William J Peters | — | -3.99K | $20.07 | -$80.07K | SELL | -4.81% | 78.97K | Jan 21 | View |
| Jan 10, 2020 | Jason Shandell | — | 0.00 | $14.68 | -$187.73K | OPTION EXERCISE | 0.00% | 138.90K | Jan 08 | View |
| Jan 03, 2020 | Floyd Petersen | — | -1.00K | $19.14 | -$19.14K | SELL | -1.34% | 73.64K | Jan 02 | View |
| Dec 20, 2019 | Jason Shandell | PRESIDENT AND GENERAL COUNSEL | -8.21K | $19.13 | -$156.96K | SELL | -5.58% | 138.90K | Dec 18 | View |
| Dec 04, 2019 | Floyd Petersen | DIRECTOR | -500.00 | $19.25 | -$9.62K | SELL | -0.67% | 74.64K | Dec 02 | View |
| Nov 05, 2019 | Floyd Petersen | DIRECTOR | -500.00 | $19.48 | -$9.74K | SELL | -0.66% | 75.14K | Nov 01 | View |
| Oct 03, 2019 | Floyd Petersen | DIRECTOR | -500.00 | $19.92 | -$9.96K | SELL | -0.66% | 75.64K | Oct 01 | View |
| Sep 20, 2019 | Jason Shandell | PRESIDENT AND GENERAL COUNSEL | -7.34K | $21.32 | -$156.51K | SELL | -4.75% | 147.10K | Sep 18 | View |
| Sep 18, 2019 | William J Peters | CFO, SVP & TREASURER | 0.00 | $16.55 | -$102.22K | SELL-OPTIONS | 0.00% | 82.45K | Sep 16 | View |
| Sep 17, 2019 | Floyd Petersen | DIRECTOR | -500.00 | $21.75 | -$10.88K | SELL | -0.65% | 76.14K | Sep 16 | View |
| Sep 17, 2019 | Yakob Liawatidewi | SVP CORP ADMIN CENTER | -3.00K | $21.45 | -$64.34K | SELL | -7.67% | 36.13K | Sep 13 | View |
| Sep 12, 2019 | Jack ZhangMary LuoApplied Physics Chemistry Laboratories Inc | CEO & CHIEF SCIENTIFIC OFFICER, COO,CHIEF SCIENTIST & CHAIRMAN | -300.00K | $20.82 | -$6.25M | SELL | -3.99% | 7.23M | Sep 11 | View |
| Sep 09, 2019 | Yakob Liawatidewi | SVP CORP ADMIN CENTER | -3.91K | $21.65 | -$84.64K | SELL | -9.08% | 39.13K | Sep 05 - Sep 06 | View |
| Aug 27, 2019 | RICHARD PRINS | DIRECTOR | 0.00 | $18.85 | -$56.10K | SELL-OPTIONS | 0.00% | 39.31K | Aug 23 - Aug 26 | View |
| Aug 16, 2019 | William J Peters | CFO, SVP & TREASURER | -4.94K | $21.00 | -$103.78K | SELL | -5.65% | 82.45K | Aug 15 | View |
| Aug 15, 2019 | RICHARD PRINS | DIRECTOR | 0.00 | $17.94 | -$56.68K | SELL-OPTIONS | 0.00% | 39.31K | Aug 13 | View |
| Aug 14, 2019 | Yakob Liawatidewi | SVP CORP ADMIN CENTER | -5.52K | $15.73 | -$209.31K | SELL | -11.36% | 43.04K | Aug 12 - Aug 13 | View |
FAQ
Is insider trading legal?
Insider trading is legal so long as the insiders report those trades to the SEC. Illegal securities trading occurs when the insider is violating a fiduciary duty or fails to report their trades.
What are some examples of market manipulation?
Insider trading, pump and dump schemes, front running and wash trades are all examples of market manipulation. Investors who track insider asset movement should think carefully about why these insiders are trading their stocks before moving forward.
Browse insider trades on all stocks.