Lawrence Michael Ziemba
CIK 1547334 · View on SEC EDGAR ↗
First SEC filing: Jan. 5, 2023 · Latest: Jan. 5, 2023
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 29, 2026 | PAA | S | 2,346 | $21.95 | $51,495 | 0 Direct | -100.00% | Disposed | 10.5% (price as of 2026-08-20) |
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 |
|---|---|---|---|---|---|---|---|
| Aug. 14, 2026 | PAGP | Phantom Class A Shares [F1] | Class A Shares (7,400) | — | Aug. 14, 2026 | 7,400 | Disposed |
| Aug. 13, 2026 | PAGP | Phantom Class A Shares [F1] | Class A Shares (6,150) | — | — | 6,150 | Acquired |
| Aug. 14, 2025 | PAGP | Phantom Class A Shares [F1] | Class A Shares (7,400) | — | — | 7,400 | Acquired |
| Aug. 14, 2025 | PAGP | Phantom Class A Shares [F1] | Class A Shares (11,900) | — | Aug. 14, 2025 | 11,900 | Disposed |
| Aug. 14, 2025 | PAGP | Phantom Class A Shares [F1] | Class A Shares (7,650) | — | Aug. 14, 2025 | 7,650 | Disposed |
| Aug. 15, 2024 | PAGP | Phantom Class A Shares [F1] | Class A Shares (7,650) | — | — | 7,650 | Acquired |
| Aug. 14, 2024 | PAGP | Phantom Class A Shares [F1] | Class A Shares (8,050) | — | Aug. 14, 2024 | 8,050 | Disposed |
| Aug. 14, 2024 | PAGP | Phantom Class A Shares [F1] | Class A Shares (15,290) | — | Aug. 14, 2024 | 15,290 | Disposed |
| Aug. 17, 2023 | PAGP | Phantom Class A Shares [F1] | Class A Shares (8,050) | — | — | 8,050 | Acquired |
| Aug. 14, 2023 | PAGP | Phantom Class A Shares [F1] | Class A Shares (11,400) | — | Aug. 14, 2023 | 11,400 | Disposed |
| Aug. 14, 2023 | PAGP | Phantom Class A Shares [F1] | Class A Shares (6,480) | — | Aug. 14, 2023 | 6,480 | Disposed |
| Aug. 18, 2022 | PAGP | Phantom Class A Shares [F1] | Class A Shares (11,400) | — | — | 11,400 | Acquired |
| Aug. 12, 2022 | PAGP | Phantom Class A Shares [F1] | Class A Shares (6,480) | — | — | 6,480 | Disposed |
| Feb. 7, 2013 | PSX | Stock Options (right to buy) | Common Stock (23,900) | $62.17 | Feb. 7, 2023 | 23,900 | Acquired |
| Feb. 7, 2013 | PSX | Performance Stock Units [F2,F3] | Common Stock (14,629) | — | — | 14,629 | Acquired |
| Jan. 9, 2013 | PSX | Phantom Stock | Common Stock (1,025) | — | — | 1,025 | Acquired |
| July 11, 2012 | PSX | Phantom Stock | Common Stock (96) | — | — | 96 | Acquired |
| May 4, 2012 | PSX | Employee Stock Option (Right to Buy) | Common Stock (101,909) | $32.03 | Feb. 9, 2022 | 101,909 | Acquired |
| May 4, 2012 | PSX | Employee Stock Option (Right to Buy) | Common Stock (72,630) | $31.25 | Feb. 10, 2021 | 72,630 | Acquired |
| May 4, 2012 | PSX | Employee Stock Option (Right to Buy) | Common Stock (45,093) | $21.56 | Feb. 12, 2020 | 45,093 | Acquired |
| May 4, 2012 | PSX | Employee Stock Option (Right to Buy) | Common Stock (20,811) | $20.27 | Feb. 12, 2019 | 20,811 | Acquired |
| May 4, 2012 | PSX | Employee Stock Option (Right to Buy) | Common Stock (8,563) | $35.38 | Feb. 14, 2018 | 8,563 | Acquired |
| May 4, 2012 | PSX | Employee Stock Option (Right to Buy) | Common Stock (8,896) | $29.58 | Feb. 8, 2017 | 8,896 | Acquired |
| May 4, 2012 | PSX | Employee Stock Option (Right to Buy) | Common Stock (7,517) | $26.33 | Feb. 10, 2016 | 7,517 | Acquired |
| May 4, 2012 | PSX | Employee Stock Option (Right to Buy) | Common Stock (11,065) | $21.32 | Feb. 4, 2015 | 11,065 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.
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 |
|---|---|---|---|---|---|---|---|---|
| 2015 | $690,312 | — | $1,737,253 | $527,520 | $1,031,326 | $594,011 | $92,695 | $4,673,117 |
| 2014 | $674,396 | $0 | $1,712,742 | $504,070 | $671,698 | $1,110,517 | $110,040 | $4,783,463 |
| 2013 | $626,768 | — | $1,829,619 | $400,803 | $1,002,202 | $246,458 | $122,450 | $4,228,300 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.