Michael L Dreyer
Insider
First SEC filing: Aug. 30, 2024 · Latest: Aug. 30, 2024
Insider at
Insider transactions
0 buys (P)
2 sells (S)
Net: $-2,542,413
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 |
|---|---|---|---|---|---|---|---|---|---|
| March 11, 2026 | FFIV | M | 934 | · | · | 2,243 Direct | +71.35% | Acquired | (price as of 2026-10-05) |
| March 11, 2026 | FFIV | M | 934 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Feb. 20, 2026 | FFIV | S | 3,067 | $282.41 | $866,151 | 1,309 Direct | -70.09% | Disposed | 62.4% (price as of 2026-10-05) |
| Feb. 11, 2026 | COHR | A | 279 | · | · | 12,364 Direct | +2.31% | Acquired | (price as of 2026-10-05) |
| Nov. 14, 2025 | COHR | S | 11,570 | $144.88 | $1,676,262 | 12,085 Direct | -48.91% | Disposed | 130.3% (price as of 2026-10-05) |
| Aug. 28, 2025 | COHR | A | 2,272 | · | · | 23,655 Direct | +10.63% | Acquired | (price as of 2026-10-05) |
| May 27, 2025 | FFIV | S | 1,800 | $285.96 | $514,728 | 4,376 Direct | -29.15% | Disposed | 60.3% (price as of 2026-10-05) |
| March 13, 2025 | FFIV | A | 934 | · | · | 934 Direct | · | Acquired | (price as of 2026-10-05) |
| March 12, 2025 | FFIV | M | 1,309 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| March 12, 2025 | FFIV | M | 1,309 | · | · | 6,176 Direct | +26.90% | Acquired | (price as of 2026-10-05) |
| Aug. 29, 2024 | COHR | A | 2,831 | · | · | 21,383 Direct | +15.26% | Acquired | (price as of 2026-10-05) |
| June 5, 2024 | COHR | S | 14,239 | $66.61 | $948,460 | 18,552 Direct | -43.42% | Disposed | 400.9% (price as of 2026-10-05) |
| May 30, 2024 | FFIV | S | 2,250 | $167.93 | $377,842 | 4,867 Direct | -31.61% | Disposed | 173.0% (price as of 2026-10-05) |
| March 14, 2024 | FFIV | A | 1,309 | · | · | 1,309 Direct | · | Acquired | (price as of 2026-10-05) |
| March 13, 2024 | FFIV | M | 1,770 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| March 13, 2024 | FFIV | M | 1,770 | · | · | 7,117 Direct | +33.10% | Acquired | (price as of 2026-10-05) |
| Aug. 31, 2023 | COHR | A | 5,315 | · | · | 32,791 Direct | +19.34% | Acquired | (price as of 2026-10-05) |
| May 24, 2023 | FFIV | S | 2,750 | $143.19 | $393,772 | 5,347 Direct | -33.96% | Disposed | 220.2% (price as of 2026-10-05) |
| March 9, 2023 | FFIV | A | 1,770 | · | · | 1,770 Direct | · | Acquired | (price as of 2026-10-05) |
| March 8, 2023 | FFIV | M | 1,272 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| March 8, 2023 | FFIV | M | 1,272 | · | · | 8,097 Direct | +18.64% | Acquired | (price as of 2026-10-05) |
| Aug. 28, 2022 | COHR | A | 3,855 | · | · | 27,476 Direct | +16.32% | Acquired | (price as of 2026-10-05) |
| March 10, 2022 | FFIV | A | 1,272 | · | · | 1,272 Direct | · | Acquired | (price as of 2026-10-05) |
| March 9, 2022 | FFIV | M | 1,282 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| March 9, 2022 | FFIV | M | 1,282 | · | · | 6,825 Direct | +23.13% | Acquired | (price as of 2026-10-05) |
| Aug. 28, 2021 | COHR | A | 3,144 | · | · | 23,621 Direct | +15.35% | Acquired | (price as of 2026-10-05) |
| May 3, 2021 | FFIV | S | 6,000 | $187.14 | $1,122,840 | 5,543 Direct | -51.98% | Disposed | 145.0% (price as of 2026-10-05) |
| March 11, 2021 | FFIV | A | 1,282 | · | · | 1,282 Direct | · | Acquired | (price as of 2026-10-05) |
| March 10, 2021 | FFIV | M | 2,543 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| March 10, 2021 | FFIV | M | 2,543 | · | · | 11,543 Direct | +28.26% | Acquired | (price as of 2026-10-05) |
| Aug. 28, 2020 | COHR | A | 3,838 | · | · | 20,477 Direct | +23.07% | Acquired | (price as of 2026-10-05) |
| March 12, 2020 | FFIV | A | 2,543 | · | · | 2,543 Direct | · | Acquired | (price as of 2026-10-05) |
| March 11, 2020 | FFIV | M | 1,633 | · | · | 9,000 Direct | +22.17% | Acquired | (price as of 2026-10-05) |
| March 11, 2020 | FFIV | M | 1,633 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Oct. 7, 2019 | COHR | A | 2,400 | · | · | 16,639 Direct | +16.86% | Acquired | (price as of 2026-10-05) |
| Oct. 7, 2019 | COHR | A | 6,000 | · | · | 6,000 Direct | · | Acquired | (price as of 2026-10-05) |
| March 14, 2019 | FFIV | A | 1,633 | · | · | 1,633 Direct | · | Acquired | (price as of 2026-10-05) |
| March 13, 2019 | FFIV | M | 1,688 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| March 13, 2019 | FFIV | M | 1,688 | · | · | 7,367 Direct | +29.72% | Acquired | (price as of 2026-10-05) |
| Nov. 12, 2018 | 719739 | M | 2,016 | · | · | 5,650 Direct | +55.48% | Acquired | |
| Nov. 12, 2018 | 719739 | F | 936 | $240.97 | $225,548 | 4,714 Direct | -16.57% | Disposed | |
| Nov. 12, 2018 | 719739 | M | 2,016 | · | · | 2,016 Direct | -50.00% | Disposed | |
| Aug. 21, 2018 | FFIV | S | 5,679 | $183.03 | $1,039,427 | 5,679 Direct | -50.00% | Disposed | 150.5% (price as of 2026-10-05) |
| Aug. 1, 2018 | 719739 | M | 758 | · | · | 3,897 Direct | +24.15% | Acquired | |
| Aug. 1, 2018 | 719739 | F | 263 | $313.54 | $82,461 | 3,634 Direct | -6.75% | Disposed | |
| Aug. 1, 2018 | 719739 | M | 758 | · | · | 1,514 Direct | -33.36% | Disposed | |
| May 2, 2018 | 719739 | M | 275 | · | · | 3,235 Direct | +9.29% | Acquired | |
| May 2, 2018 | 719739 | F | 96 | $306.01 | $29,377 | 3,139 Direct | -2.97% | Disposed | |
| May 2, 2018 | 719739 | M | 275 | · | · | 823 Direct | -25.05% | Disposed | |
| May 1, 2018 | 719739 | A | 2,509 | · | · | 2,509 Direct | · | Acquired | |
| May 1, 2018 | 719739 | A | 836 | · | · | 836 Direct | · | Acquired | |
| May 1, 2018 | 719739 | A | 2,622 | · | · | 2,622 Direct | · | Acquired | |
| March 15, 2018 | FFIV | A | 1,688 | · | · | 1,688 Direct | · | Acquired | (price as of 2026-10-05) |
| March 14, 2018 | FFIV | M | 1,740 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| March 14, 2018 | FFIV | M | 1,740 | · | · | 11,358 Direct | +18.09% | Acquired | (price as of 2026-10-05) |
| Nov. 12, 2017 | 719739 | M | 2,016 | · | · | 3,747 Direct | +116.46% | Acquired | |
| Nov. 12, 2017 | 719739 | F | 787 | $212.26 | $167,049 | 2,960 Direct | -21.00% | Disposed | |
| Nov. 12, 2017 | 719739 | M | 2,016 | · | · | 4,032 Direct | -33.33% | Disposed | |
| Aug. 1, 2017 | 719739 | M | 758 | · | · | 2,016 Direct | +60.25% | Acquired | |
| Aug. 1, 2017 | 719739 | F | 285 | $183.39 | $52,266 | 1,731 Direct | -14.14% | Disposed | |
| Aug. 1, 2017 | 719739 | M | 758 | · | · | 2,272 Direct | -25.02% | Disposed | |
| May 2, 2017 | 719739 | A | 1,098 | · | · | 1,098 Direct | · | Acquired | |
| May 2, 2017 | 719739 | A | 3,537 | $178.39 | $630,965 | 3,537 Direct | · | Acquired | |
| March 9, 2017 | FFIV | A | 1,740 | · | · | 1,740 Direct | · | Acquired | (price as of 2026-10-05) |
| March 8, 2017 | FFIV | M | 2,540 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| March 8, 2017 | FFIV | M | 2,540 | · | · | 9,618 Direct | +35.89% | Acquired | (price as of 2026-10-05) |
| Feb. 21, 2017 | 719739 | A | 3,370 | · | · | 3,370 Direct | · | Acquired | |
| Nov. 12, 2016 | 719739 | M | 2,016 | · | · | 2,016 Direct | · | Acquired | |
| Nov. 12, 2016 | 719739 | F | 758 | $151.28 | $114,670 | 1,258 Direct | -37.60% | Disposed | |
| Nov. 12, 2016 | 719739 | M | 2,016 | · | · | 6,048 Direct | -25.00% | Disposed | |
| Aug. 1, 2016 | 719739 | A | 3,030 | · | · | 3,030 Direct | · | Acquired | |
| March 10, 2016 | FFIV | A | 2,540 | · | · | 2,540 Direct | · | Acquired | (price as of 2026-10-05) |
| March 9, 2016 | FFIV | M | 2,212 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| March 9, 2016 | FFIV | M | 2,212 | · | · | 7,078 Direct | +45.46% | Acquired | (price as of 2026-10-05) |
| Nov. 12, 2015 | 719739 | M | 8,064 | · | · | 8,064 Direct | · | Acquired | |
| March 12, 2015 | FFIV | A | 2,212 | · | · | 2,212 Direct | · | Acquired | (price as of 2026-10-05) |
| March 11, 2015 | FFIV | M | 1,861 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| March 11, 2015 | FFIV | M | 1,861 | · | · | 4,866 Direct | +61.93% | Acquired | (price as of 2026-10-05) |
| March 13, 2014 | FFIV | A | 1,861 | · | · | 1,861 Direct | · | Acquired | (price as of 2026-10-05) |
| March 12, 2014 | FFIV | M | 2,156 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| March 12, 2014 | FFIV | M | 2,156 | · | · | 3,005 Direct | +253.95% | Acquired | (price as of 2026-10-05) |
| March 13, 2013 | FFIV | A | 2,156 | · | · | 2,156 Direct | · | Acquired | (price as of 2026-10-05) |
| March 12, 2013 | FFIV | M | 849 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| March 12, 2013 | FFIV | M | 849 | · | · | 849 Direct | · | Acquired | (price as of 2026-10-05) |
| Oct. 15, 2012 | FFIV | A | 849 | · | · | 849 Direct | · | Acquired | (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 |
|---|---|---|---|---|---|---|---|
| March 11, 2026 | FFIV | Restricted Stock Unit [F1] | Common Stock | $0.00 | · | 934 | Disposed |
| March 13, 2025 | FFIV | Restricted Stock Unit [F1] | Common Stock | $0.00 | · | 934 | Acquired |
| March 12, 2025 | FFIV | Restricted Stock Unit [F1] | Common Stock | $0.00 | · | 1,309 | Disposed |
| March 14, 2024 | FFIV | Restricted Stock Unit [F2] | Common Stock | $0.00 | · | 1,309 | Acquired |
| March 13, 2024 | FFIV | Restricted Stock Unit [F2] | Common Stock | $0.00 | · | 1,770 | Disposed |
| March 9, 2023 | FFIV | Restricted Stock Unit [F2] | Common Stock | $0.00 | · | 1,770 | Acquired |
| March 8, 2023 | FFIV | Restricted Stock Unit [F2] | Common Stock | $0.00 | · | 1,272 | Disposed |
| March 10, 2022 | FFIV | Restricted Stock Unit [F2] | Common Stock | $0.00 | · | 1,272 | Acquired |
| March 9, 2022 | FFIV | Restricted Stock Unit [F2] | Common Stock | $0.00 | · | 1,282 | Disposed |
| March 11, 2021 | FFIV | Restricted Stock Unit [F2] | Common Stock | $0.00 | · | 1,282 | Acquired |
| March 10, 2021 | FFIV | Restricted Stock Unit [F2] | Common Stock | $0.00 | · | 2,543 | Disposed |
| March 12, 2020 | FFIV | Restricted Stock Unit [F2] | Common Stock | $0.00 | · | 2,543 | Acquired |
| March 11, 2020 | FFIV | Restricted Stock Unit [F2] | Common Stock | $0.00 | · | 1,633 | Disposed |
| Oct. 7, 2019 | COHR | Stock Options (Right to buy) | Common Stock | $32.51 | Oct. 7, 2029 | 6,000 | Acquired |
| March 14, 2019 | FFIV | Restricted Stock Unit [F2] | Common Stock | $0.00 | · | 1,633 | Acquired |
| March 13, 2019 | FFIV | Restricted Stock Unit [F2] | Common Stock | $0.00 | · | 1,688 | Disposed |
| Nov. 12, 2018 | 719739 | Restricted Stock Unit | Common Stock | $0.00 | Nov. 12, 2022 | 2,016 | Disposed |
| Aug. 1, 2018 | 719739 | Restricted Stock Unit | Common Stock | $0.00 | Aug. 1, 2023 | 758 | Disposed |
| May 2, 2018 | 719739 | Restricted Stock Unit | Common Stock | $0.00 | May 2, 2024 | 275 | Disposed |
| May 1, 2018 | 719739 | Performance Restricted Stock Unit | Common Stock | $0.00 | May 1, 2025 | 2,509 | Acquired |
| May 1, 2018 | 719739 | Restricted Stock Unit | Common Stock | $0.00 | May 1, 2025 | 836 | Acquired |
| May 1, 2018 | 719739 | Stock Option | Common Stock | $305.46 | May 1, 2025 | 2,622 | Acquired |
| March 15, 2018 | FFIV | Restricted Stock Unit [F2] | Common Stock | $0.00 | · | 1,688 | Acquired |
| March 14, 2018 | FFIV | Restricted Stock Unit [F2] | Common Stock | $0.00 | · | 1,740 | Disposed |
| Nov. 12, 2017 | 719739 | Restricted Stock Unit | Common Stock | $0.00 | Nov. 12, 2022 | 2,016 | Disposed |
| Aug. 1, 2017 | 719739 | Restricted Stock Unit | Common Stock | $0.00 | Aug. 1, 2023 | 758 | Disposed |
| May 2, 2017 | 719739 | Restricted Stock Unit | Common Stock | $0.00 | May 2, 2024 | 1,098 | Acquired |
| May 2, 2017 | 719739 | Stock Option | Common Stock | $178.39 | May 2, 2024 | 3,537 | Acquired |
| March 9, 2017 | FFIV | Restricted Stock Units [F2] | Common Stock | $0.00 | · | 1,740 | Acquired |
| March 8, 2017 | FFIV | Restricted Stock Units [F2] | Common Stock | $0.00 | · | 2,540 | Disposed |
| Feb. 21, 2017 | 719739 | Performance Restricted Stock Unit | Common Stock | $0.00 | Feb. 21, 2024 | 3,370 | Acquired |
| Nov. 12, 2016 | 719739 | Restricted Stock Unit | Common Stock | · | Nov. 12, 2016 | 2,016 | Disposed |
| Aug. 1, 2016 | 719739 | Restricted Stock Unit | Common Stock | $0.00 | Aug. 1, 2023 | 3,030 | Acquired |
| March 10, 2016 | FFIV | Restricted Stock Units [F2] | Common Stock | $0.00 | · | 2,540 | Acquired |
| March 9, 2016 | FFIV | Restricted Stock Units [F2] | Common Stock | $0.00 | · | 2,212 | Disposed |
| Nov. 12, 2015 | 719739 | Restricted Stock Unit | Common Stock | $0.00 | Nov. 12, 2022 | 8,064 | Acquired |
| March 12, 2015 | FFIV | Restricted Stock Units [F2] | Common Stock | $0.00 | · | 2,212 | Acquired |
| March 11, 2015 | FFIV | Restricted Stock Units [F2] | Common Stock | $0.00 | · | 1,861 | Disposed |
| March 13, 2014 | FFIV | Restricted Stock Units [F2] | Common Stock | $0.00 | · | 1,861 | Acquired |
| March 12, 2014 | FFIV | Restricted Stock Units [F2] | Common Stock | $0.00 | · | 2,156 | Disposed |
| March 13, 2013 | FFIV | Restricted Stock Units [F2] | Common Stock | $0.00 | · | 2,156 | Acquired |
| March 12, 2013 | FFIV | Restricted Stock Units [F2] | Common Stock | $0.00 | · | 849 | Disposed |
| Oct. 15, 2012 | FFIV | Restricted Stock Units [F1] | Common Stock | $0.00 | · | 849 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Oct. 2, 2019 | COHR | Common Stock | 14,239 | Direct |