Dermot J O'Brien
CIK 1548711 · View on SEC EDGAR ↗
First SEC filing: May 1, 2012 · Latest: May 1, 2012
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
Insider transactions
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 |
|---|---|---|---|---|---|---|---|---|---|
| June 9, 2021 | ADP | S 10b5-1 | 7,069 | $200.00 | $1,413,800 | 13,622 Direct | -34.16% | Disposed | 39.5% (price as of 2026-08-21) |
| Nov. 16, 2020 | ADP | S 10b5-1 | 12,406 | $175.00 | $2,171,050 | 13,547 Direct | -47.80% | Disposed | 59.4% (price as of 2026-08-21) |
| Sept. 2, 2020 | ADP | S 10b5-1 | 6,529 | $140.00 | $914,060 | 29,573 Direct | -18.08% | Disposed | 99.3% (price as of 2026-08-21) |
| Sept. 2, 2020 | ADP | S 10b5-1 | 7,714 | $140.00 | $1,079,960 | 21,859 Direct | -26.08% | Disposed | 99.3% (price as of 2026-08-21) |
| Sept. 2, 2020 | ADP | S 10b5-1 | 8,312 | $138.18 | $1,148,552 | 13,547 Direct | -38.03% | Disposed | 101.9% (price as of 2026-08-21) |
| Jan. 2, 2020 | ADP | S 10b5-1 | 80 | $171.40 | $13,712 | 14,894 Direct | -0.53% | Disposed | 62.8% (price as of 2026-08-21) |
| Jan. 2, 2020 | ADP | S 10b5-1 | 240 | $170.73 | $40,975 | 14,654 Direct | -1.61% | Disposed | 63.4% (price as of 2026-08-21) |
| Jan. 2, 2020 | ADP | S 10b5-1 | 1,180 | $169.89 | $200,470 | 13,474 Direct | -8.05% | Disposed | 64.2% (price as of 2026-08-21) |
| Sept. 3, 2019 | ADP | S 10b5-1 | 100 | $169.28 | $16,928 | 40,548 Direct | -0.25% | Disposed | 64.8% (price as of 2026-08-21) |
| Sept. 3, 2019 | ADP | S 10b5-1 | 400 | $168.94 | $67,576 | 40,148 Direct | -0.99% | Disposed | 65.1% (price as of 2026-08-21) |
| Sept. 3, 2019 | ADP | S 10b5-1 | 700 | $168.92 | $118,244 | 39,448 Direct | -1.74% | Disposed | 65.2% (price as of 2026-08-21) |
| Sept. 3, 2019 | ADP | S 10b5-1 | 800 | $168.92 | $135,136 | 38,648 Direct | -2.03% | Disposed | 65.2% (price as of 2026-08-21) |
| Sept. 3, 2019 | ADP | S 10b5-1 | 1,320 | $168.60 | $222,552 | 37,328 Direct | -3.42% | Disposed | 65.5% (price as of 2026-08-21) |
| Sept. 3, 2019 | ADP | S 10b5-1 | 4,017 | $167.96 | $674,695 | 33,311 Direct | -10.76% | Disposed | 66.1% (price as of 2026-08-21) |
| Sept. 3, 2019 | ADP | S 10b5-1 | 5,828 | $167.96 | $978,871 | 27,483 Direct | -17.50% | Disposed | 66.1% (price as of 2026-08-21) |
| Sept. 3, 2019 | ADP | S 10b5-1 | 6,292 | $167.98 | $1,056,930 | 21,191 Direct | -22.89% | Disposed | 66.1% (price as of 2026-08-21) |
| Sept. 3, 2019 | ADP | S 10b5-1 | 6,294 | $167.87 | $1,056,574 | 14,897 Direct | -29.70% | Disposed | 66.2% (price as of 2026-08-21) |
| July 3, 2019 | ADP | S 10b5-1 | 1,771 | $162.04 | $286,973 | 14,896 Direct | -10.63% | Disposed | 72.2% (price as of 2026-08-21) |
| Jan. 22, 2019 | ADP | S 10b5-1 | 3,803 | $134.04 | $509,754 | 17,538 Direct | -17.82% | Disposed | 108.1% (price as of 2026-08-21) |
| Jan. 2, 2019 | ADP | S 10b5-1 | 1,575 | $129.88 | $204,561 | 35,287 Direct | -4.27% | Disposed | 114.8% (price as of 2026-08-21) |
| Jan. 2, 2019 | ADP | S 10b5-1 | 4,607 | $129.01 | $594,349 | 30,680 Direct | -13.06% | Disposed | 116.3% (price as of 2026-08-21) |
| Jan. 2, 2019 | ADP | S 10b5-1 | 5,428 | $129.24 | $701,515 | 25,252 Direct | -17.69% | Disposed | 115.9% (price as of 2026-08-21) |
| Jan. 2, 2019 | ADP | S 10b5-1 | 7,714 | $130.15 | $1,003,977 | 17,538 Direct | -30.55% | Disposed | 114.4% (price as of 2026-08-21) |
| Sept. 4, 2018 | ADP | S 10b5-1 | 4,417 | $144.77 | $639,449 | 35,585 Direct | -11.04% | Disposed | 92.7% (price as of 2026-08-21) |
| Sept. 4, 2018 | ADP | S 10b5-1 | 6,529 | $144.79 | $945,334 | 29,056 Direct | -18.35% | Disposed | 92.7% (price as of 2026-08-21) |
| Jan. 23, 2018 | ADP | S 10b5-1 | 5,973 | $121.84 | $727,750 | 25,709 Direct | -18.85% | Disposed | 129.0% (price as of 2026-08-21) |
| Jan. 22, 2018 | ADP | S 10b5-1 | 3,802 | $121.65 | $462,513 | 25,709 Direct | -12.88% | Disposed | 129.3% (price as of 2026-08-21) |
| Jan. 2, 2018 | ADP | S 10b5-1 | 2,150 | $115.74 | $248,841 | 48,674 Direct | -4.23% | Disposed | 141.1% (price as of 2026-08-21) |
| Jan. 2, 2018 | ADP | S 10b5-1 | 6,528 | $116.03 | $757,444 | 42,146 Direct | -13.41% | Disposed | 140.5% (price as of 2026-08-21) |
| Jan. 2, 2018 | ADP | S 10b5-1 | 7,604 | $115.74 | $880,087 | 34,542 Direct | -18.04% | Disposed | 141.1% (price as of 2026-08-21) |
| Jan. 2, 2018 | ADP | S 10b5-1 | 8,833 | $115.73 | $1,022,243 | 25,709 Direct | -25.57% | Disposed | 141.1% (price as of 2026-08-21) |
| Sept. 2, 2017 | ADP | S 10b5-1 | 4,098 | $106.64 | $437,011 | 31,917 Direct | -11.38% | Disposed | 161.6% (price as of 2026-08-21) |
| Jan. 25, 2017 | ADP | S 10b5-1 | 11,200 | $103.37 | $1,157,744 | 27,625 Direct | -28.85% | Disposed | 169.9% (price as of 2026-08-21) |
| Jan. 25, 2017 | ADP | S 10b5-1 | 5,120 | $103.46 | $529,715 | 38,825 Direct | -11.65% | Disposed | 169.7% (price as of 2026-08-21) |
| Jan. 25, 2017 | ADP | S 10b5-1 | 3,575 | $103.28 | $369,226 | 43,945 Direct | -7.52% | Disposed | 170.1% (price as of 2026-08-21) |
| Jan. 25, 2017 | ADP | S 10b5-1 | 3,100 | $103.50 | $320,850 | 47,520 Direct | -6.12% | Disposed | 169.6% (price as of 2026-08-21) |
| Jan. 25, 2017 | ADP | S 10b5-1 | 41 | $103.82 | $4,257 | 50,620 Direct | -0.08% | Disposed | 168.7% (price as of 2026-08-21) |
| Sept. 6, 2016 | ADP | S 10b5-1 | 5,048 | $89.53 | $451,947 | 27,497 Direct | -15.51% | Disposed | 211.6% (price as of 2026-08-21) |
Showing latest 100 of 143 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 9, 2021 | ADP | Stock Option (Right to Buy) | Common Stock (7,069) | $169.84 | Aug. 31, 2029 | 7,069 | Disposed |
| Nov. 16, 2020 | ADP | Stock Option (Right to Buy) | Common Stock (12,406) | $146.75 | Aug. 31, 2028 | 12,406 | Disposed |
| Sept. 2, 2020 | ADP | Stock Option (Right to Buy) | Common Stock (6,529) | $90.63 | Aug. 31, 2026 | 6,529 | Disposed |
| Sept. 2, 2020 | ADP | Stock Option (Right to Buy) | Common Stock (7,714) | $107.35 | Aug. 31, 2027 | 7,714 | Disposed |
| Sept. 1, 2020 | ADP | Stock Option (Right to Buy) | Common Stock (31,855) | $138.53 | Aug. 31, 2030 | 31,855 | Acquired |
| Sept. 3, 2019 | ADP | Stock Option (Right to Buy) | Common Stock (4,417) | $75.10 | Aug. 31, 2025 | 4,417 | Disposed |
| Sept. 3, 2019 | ADP | Stock Option (Right to Buy) | Common Stock (6,528) | $90.63 | Aug. 31, 2026 | 6,528 | Disposed |
| Sept. 3, 2019 | ADP | Stock Option (Right to Buy) | Common Stock (7,714) | $107.35 | Aug. 31, 2027 | 7,714 | Disposed |
| Sept. 1, 2019 | ADP | Stock Option (Right to Buy) | Common Stock (28,278) | $169.84 | Aug. 31, 2029 | 28,278 | Acquired |
| Jan. 22, 2019 | ADP | Stock Option (Right to Buy) | Common Stock (3,803) | $86.61 | Jan. 21, 2025 | 3,803 | Disposed |
| Jan. 2, 2019 | ADP | Stock Option (Right to Buy) | Common Stock (7,714) | $107.35 | Aug. 31, 2027 | 7,714 | Disposed |
| Sept. 4, 2018 | ADP | Stock Option (Right to Buy) | Common Stock (4,417) | $75.10 | Aug. 31, 2025 | 4,417 | Disposed |
| Sept. 4, 2018 | ADP | Stock Option (Right to Buy) | Common Stock (6,529) | $90.63 | Aug. 31, 2026 | 6,529 | Disposed |
| Sept. 1, 2018 | ADP | Stock Option (Right to Buy) | Common Stock (24,812) | $146.75 | Aug. 31, 2028 | 24,812 | Acquired |
| Jan. 23, 2018 | ADP | Stock Option (Right to Buy) | Common Stock (5,973) | $69.72 | Jan. 22, 2024 | 5,973 | Disposed |
| Jan. 22, 2018 | ADP | Stock Option (Right to Buy) | Common Stock (3,802) | $86.61 | Jan. 21, 2025 | 3,802 | Disposed |
| Jan. 2, 2018 | ADP | Stock Option (Right to Buy) | Common Stock (7,604) | $86.61 | Jan. 21, 2025 | 7,604 | Disposed |
| Jan. 2, 2018 | ADP | Stock Option (Right to Buy) | Common Stock (8,833) | $75.10 | Aug. 31, 2025 | 8,833 | Disposed |
| Jan. 2, 2018 | ADP | Stock Option (Right to Buy) | Common Stock (6,528) | $90.63 | Aug. 31, 2026 | 6,528 | Disposed |
| Sept. 1, 2017 | ADP | Stock Option (Right to Buy) | Common Stock (30,857) | $107.35 | Aug. 31, 2027 | 30,857 | Acquired |
| Jan. 25, 2017 | ADP | Stock Option (Right to Buy) | Common Stock (5,120) | $52.65 | Jan. 24, 2023 | 5,120 | Disposed |
| Jan. 25, 2017 | ADP | Stock Option (Right to Buy) | Common Stock (17,916) | $69.72 | Jan. 22, 2024 | 17,916 | Disposed |
| Sept. 1, 2016 | ADP | Stock Option (Right to Buy) | Common Stock (26,114) | $90.63 | Aug. 31, 2026 | 26,114 | Acquired |
| June 7, 2016 | ADP | Stock Option (Right to Buy) | Common Stock (8,532) | $46.72 | June 6, 2022 | 8,532 | Disposed |
| Jan. 25, 2016 | ADP | Stock Option (Right to Buy) | Common Stock (5,119) | $52.65 | Jan. 24, 2023 | 5,119 | Disposed |
| Sept. 1, 2015 | ADP | Stock Option (Right to Buy) | Common Stock (17,667) | $75.10 | Aug. 31, 2025 | 17,667 | Acquired |
| June 8, 2015 | ADP | Stock Option (Right to Buy) | Common Stock (8,532) | $46.72 | June 6, 2022 | 8,532 | Disposed |
| Jan. 26, 2015 | ADP | Stock Option (Right to Buy) | Common Stock (5,119) | $52.65 | Jan. 24, 2023 | 5,119 | Disposed |
| Jan. 22, 2015 | ADP | Stock Option (Right to Buy) | Common Stock (15,209) | $86.61 | Jan. 21, 2025 | 15,209 | Acquired |
| June 9, 2014 | ADP | Stock Option (Right to Buy) | Common Stock (7,500) | $53.15 | June 6, 2022 | 7,500 | Disposed |
| Jan. 27, 2014 | ADP | Stock Option (Right to Buy) | Common Stock (4,500) | $59.89 | Jan. 24, 2023 | 4,500 | Disposed |
| Jan. 23, 2014 | ADP | Stock Option (Right to Buy) | Common Stock (21,000) | $79.31 | Jan. 22, 2024 | 21,000 | Acquired |
| Jan. 2, 2014 | ADP | Stock Option (Right to Buy) | Common Stock (7,500) | $53.15 | June 6, 2022 | 7,500 | Disposed |
| Jan. 25, 2013 | ADP | Stock Option (Right to Buy) | Common Stock (18,000) | $59.89 | Jan. 24, 2023 | 18,000 | Acquired |
| June 7, 2012 | ADP | Stock Option (Right to Buy) | Common Stock (30,000) | $53.15 | June 6, 2022 | 30,000 | 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 |
|---|---|---|---|---|
| May 1, 2012 | ADP | Common Stock | 15,000 | 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 |
|---|---|---|---|---|---|---|---|---|
| 2018 | $554,900 | $0 | — | — | $572,700 | $183,911 | $53,893 | $2,929,306 |
| 2013 | $475,000 | — | — | — | — | — | — | $1,609,783 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.