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Walter Isaacson
Insider
First SEC filing: May 22, 2026 · Latest: May 22, 2026
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
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 |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 30, 2026 | UAL | A | 358 | · | · | 22,927 Direct | +1.59% | Acquired | (price as of 2026-10-02) |
| June 30, 2026 | UAL | A | 292 | · | · | 22,569 Direct | +1.31% | Acquired | (price as of 2026-10-02) |
| May 20, 2026 | UAL | A | 2,130 | · | · | 2,130 Direct | · | Acquired | (price as of 2026-10-02) |
| March 31, 2026 | UAL | A | 447 | · | · | 22,277 Direct | +2.05% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2025 | UAL | A | 359 | · | · | 21,830 Direct | +1.67% | Acquired | (price as of 2026-10-02) |
| Sept. 30, 2025 | UAL | A | 412 | · | · | 21,471 Direct | +1.96% | Acquired | (price as of 2026-10-02) |
| June 30, 2025 | UAL | A | 503 | · | · | 21,059 Direct | +2.45% | Acquired | (price as of 2026-10-02) |
| May 22, 2025 | UAL | A | 2,410 | · | · | 2,410 Direct | · | Acquired | (price as of 2026-10-02) |
| March 31, 2025 | UAL | A | 598 | · | · | 20,556 Direct | +3.00% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2024 | UAL | A | 412 | · | · | 19,958 Direct | +2.11% | Acquired | (price as of 2026-10-02) |
| Sept. 30, 2024 | UAL | A | 695 | · | · | 19,547 Direct | +3.69% | Acquired | (price as of 2026-10-02) |
| June 30, 2024 | UAL | A | 826 | · | · | 18,851 Direct | +4.58% | Acquired | (price as of 2026-10-02) |
| May 23, 2024 | UAL | A | 3,459 | · | · | 3,459 Direct | · | Acquired | (price as of 2026-10-02) |
| March 29, 2024 | UAL | A | 841 | · | · | 18,026 Direct | +4.89% | Acquired | (price as of 2026-10-02) |
| Dec. 29, 2023 | UAL | A | 873 | · | · | 17,185 Direct | +5.35% | Acquired | (price as of 2026-10-02) |
| Sept. 30, 2023 | UAL | A | 855 | · | · | 16,312 Direct | +5.53% | Acquired | (price as of 2026-10-02) |
| June 30, 2023 | UAL | A | 666 | · | · | 15,458 Direct | +4.50% | Acquired | (price as of 2026-10-02) |
| May 25, 2023 | UAL | A | 3,598 | · | · | 3,598 Direct | · | Acquired | (price as of 2026-10-02) |
| March 31, 2023 | UAL | A | 823 | · | · | 14,792 Direct | +5.89% | Acquired | (price as of 2026-10-02) |
| Dec. 30, 2022 | UAL | A | 960 | · | · | 13,968 Direct | +7.38% | Acquired | (price as of 2026-10-02) |
| Sept. 30, 2022 | UAL | A | 1,108 | · | · | 13,008 Direct | +9.31% | Acquired | (price as of 2026-10-02) |
| June 30, 2022 | UAL | A | 1,045 | · | · | 11,901 Direct | +9.63% | Acquired | (price as of 2026-10-02) |
| May 26, 2022 | UAL | A | 3,767 | · | · | 3,767 Direct | · | Acquired | (price as of 2026-10-02) |
| March 31, 2022 | UAL | A | 784 | · | · | 10,856 Direct | +7.78% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2021 | UAL | A | 820 | · | · | 10,072 Direct | +8.86% | Acquired | (price as of 2026-10-02) |
| Sept. 30, 2021 | UAL | A | 759 | · | · | 9,252 Direct | +8.94% | Acquired | (price as of 2026-10-02) |
| June 30, 2021 | UAL | A | 692 | · | · | 8,494 Direct | +8.87% | Acquired | (price as of 2026-10-02) |
| May 27, 2021 | UAL | A | 2,904 | · | · | 2,904 Direct | · | Acquired | (price as of 2026-10-02) |
| March 31, 2021 | UAL | A | 630 | · | · | 7,802 Direct | +8.78% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2020 | UAL | A | 827 | · | · | 7,172 Direct | +13.03% | Acquired | (price as of 2026-10-02) |
| May 21, 2020 | UAL | A | 6,592 | · | · | 6,592 Direct | · | Acquired | (price as of 2026-10-02) |
| March 31, 2020 | UAL | A | 1,130 | · | · | 6,345 Direct | +21.67% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2019 | UAL | A | 412 | · | · | 5,216 Direct | +8.58% | Acquired | (price as of 2026-10-02) |
| Sept. 30, 2019 | UAL | A | 410 | · | · | 4,804 Direct | +9.33% | Acquired | (price as of 2026-10-02) |
| June 28, 2019 | UAL | A | 416 | · | · | 4,394 Direct | +10.46% | Acquired | (price as of 2026-10-02) |
| May 23, 2019 | UAL | A | 2,103 | · | · | 2,103 Direct | · | Acquired | (price as of 2026-10-02) |
| March 29, 2019 | UAL | A | 457 | · | · | 3,978 Direct | +12.98% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2018 | UAL | A | 388 | · | · | 3,521 Direct | +12.38% | Acquired | (price as of 2026-10-02) |
| Sept. 28, 2018 | UAL | A | 366 | · | · | 3,133 Direct | +13.23% | Acquired | (price as of 2026-10-02) |
| June 29, 2018 | UAL | A | 449 | · | · | 2,768 Direct | +19.36% | Acquired | (price as of 2026-10-02) |
| May 24, 2018 | UAL | A | 2,284 | · | · | 2,284 Direct | · | Acquired | (price as of 2026-10-02) |
| March 30, 2018 | UAL | A | 443 | · | · | 2,319 Direct | +23.61% | Acquired | (price as of 2026-10-02) |
| Dec. 29, 2017 | UAL | A | 452 | · | · | 1,875 Direct | +31.76% | Acquired | (price as of 2026-10-02) |
| Sept. 29, 2017 | UAL | A | 501 | · | · | 1,423 Direct | +54.34% | Acquired | (price as of 2026-10-02) |
| June 30, 2017 | UAL | A | 405 | · | · | 922 Direct | +78.34% | Acquired | (price as of 2026-10-02) |
| June 9, 2017 | UAL | M | 2,707 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 9, 2017 | UAL | D | 1,354 | $79.82 | $108,076 | 6,353 Direct | -17.57% | Disposed | 41.0% (price as of 2026-10-02) |
| June 9, 2017 | UAL | M | 2,707 | · | · | 7,707 Direct | +54.14% | Acquired | (price as of 2026-10-02) |
| May 25, 2017 | UAL | A | 1,993 | · | · | 1,993 Direct | · | Acquired | (price as of 2026-10-02) |
| March 31, 2017 | UAL | A | 517 | · | · | 517 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 9, 2016 | UAL | S | 2,638 | $75.80 | $199,960 | 5,000 Direct | -34.54% | Disposed | 48.4% (price as of 2026-10-02) |
| June 11, 2016 | UAL | M | 2,362 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 11, 2016 | UAL | D | 1,182 | $46.16 | $54,561 | 7,638 Direct | -13.40% | Disposed | 143.7% (price as of 2026-10-02) |
| June 11, 2016 | UAL | M | 2,362 | · | · | 8,820 Direct | +36.57% | Acquired | (price as of 2026-10-02) |
| June 9, 2016 | UAL | A | 2,707 | · | · | 2,707 Direct | · | Acquired | (price as of 2026-10-02) |
| June 12, 2015 | UAL | M | 2,916 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 12, 2015 | UAL | D | 1,458 | $52.69 | $76,822 | 6,458 Direct | -18.42% | Disposed | 113.5% (price as of 2026-10-02) |
| June 12, 2015 | UAL | M | 2,916 | · | · | 7,916 Direct | +58.32% | Acquired | (price as of 2026-10-02) |
| June 11, 2015 | UAL | A | 2,362 | · | · | 2,362 Direct | · | Acquired | (price as of 2026-10-02) |
| June 13, 2014 | UAL | M | 3,869 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 13, 2014 | UAL | D | 3,869 | $42.64 | $164,974 | 5,000 Direct | -43.62% | Disposed | 163.9% (price as of 2026-10-02) |
| June 13, 2014 | UAL | M | 3,869 | · | · | 8,869 Direct | +77.38% | Acquired | (price as of 2026-10-02) |
| June 12, 2014 | UAL | A | 2,916 | · | · | 2,916 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 4, 2014 | UAL | S | 5,000 | $44.01 | $220,050 | 5,000 Direct | -50.00% | Disposed | 155.6% (price as of 2026-10-02) |
| June 13, 2013 | UAL | A | 3,869 | · | · | 3,869 Direct | · | Acquired | (price as of 2026-10-02) |
| June 13, 2013 | UAL | M | 3,560 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 13, 2013 | UAL | D | 3,560 | $32.31 | $115,024 | 10,000 Direct | -26.25% | Disposed | 248.2% (price as of 2026-10-02) |
| June 13, 2013 | UAL | M | 3,560 | · | · | 13,560 Direct | +35.60% | Acquired | (price as of 2026-10-02) |
| June 13, 2012 | UAL | A | 3,560 | · | · | 3,560 Direct | · | Acquired | (price as of 2026-10-02) |
| June 9, 2012 | UAL | M | 3,636 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 9, 2012 | UAL | D | 3,636 | $22.94 | $83,410 | 10,000 Direct | -26.66% | Disposed | 390.5% (price as of 2026-10-02) |
| June 9, 2012 | UAL | M | 3,636 | · | · | 13,636 Direct | +36.36% | Acquired | (price as of 2026-10-02) |
| June 9, 2011 | UAL | A | 3,636 | · | · | 3,636 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2010 | UAL | A | 372 | · | · | 19,679 Direct | +1.93% | Acquired | (price as of 2026-10-02) |
| Sept. 30, 2010 | UAL | A | 823 | · | · | 19,308 Direct | +4.45% | Acquired | (price as of 2026-10-02) |
| June 30, 2010 | UAL | A | 797 | · | · | 18,484 Direct | +4.51% | Acquired | (price as of 2026-10-02) |
| June 10, 2010 | UAL | A | 1,139 | · | · | 7,028 Direct | +19.34% | Acquired | (price as of 2026-10-02) |
| March 31, 2010 | UAL | A | 848 | · | · | 17,688 Direct | +5.04% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2009 | UAL | A | 1,432 | · | · | 16,840 Direct | +9.29% | Acquired | (price as of 2026-10-02) |
| Sept. 30, 2009 | UAL | A | 1,821 | · | · | 15,407 Direct | +13.40% | Acquired | (price as of 2026-10-02) |
| June 30, 2009 | UAL | A | 4,091 | · | · | 13,586 Direct | +43.09% | Acquired | (price as of 2026-10-02) |
| June 11, 2009 | UAL | A | 5,889 | · | · | 5,889 Direct | · | Acquired | (price as of 2026-10-02) |
| March 31, 2009 | UAL | A | 3,344 | · | · | 9,495 Direct | +54.37% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2008 | UAL | A | 1,492 | · | · | 6,151 Direct | +32.02% | Acquired | (price as of 2026-10-02) |
| Sept. 30, 2008 | UAL | A | 1,364 | · | · | 4,659 Direct | +41.40% | Acquired | (price as of 2026-10-02) |
| June 30, 2008 | UAL | A | 2,427 | · | · | 3,295 Direct | +279.61% | Acquired | (price as of 2026-10-02) |
| March 31, 2008 | UAL | A | 868 | · | · | 868 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 1, 2006 | UAL | A | 10,000 | · | · | 10,000 Direct | · | Acquired | (price as of 2026-10-02) |
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 |
|---|---|---|---|---|---|---|---|
| Sept. 30, 2026 | UAL | Share Units | Common Stock | · | · | 358 | Acquired |
| June 30, 2026 | UAL | Share Units | Common Stock | · | · | 292 | Acquired |
| May 20, 2026 | UAL | Share Units | Common Stock | · | · | 2,130 | Acquired |
| March 31, 2026 | UAL | Share Units | Common Stock | · | · | 447 | Acquired |
| Dec. 31, 2025 | UAL | Share Units | Common Stock | · | · | 359 | Acquired |
| Sept. 30, 2025 | UAL | Share Units | Common Stock | · | · | 412 | Acquired |
| June 30, 2025 | UAL | Share Units | Common Stock | · | · | 503 | Acquired |
| May 22, 2025 | UAL | Share Units | Common Stock | · | · | 2,410 | Acquired |
| March 31, 2025 | UAL | Share Units | Common Stock | · | · | 598 | Acquired |
| Dec. 31, 2024 | UAL | Share Units | Common Stock | · | · | 412 | Acquired |
| Sept. 30, 2024 | UAL | Share Units | Common Stock | · | · | 695 | Acquired |
| June 30, 2024 | UAL | Share Units | Common Stock | · | · | 826 | Acquired |
| May 23, 2024 | UAL | Share Units | Common Stock | · | · | 3,459 | Acquired |
| March 29, 2024 | UAL | Share Units | Common Stock | · | · | 841 | Acquired |
| Dec. 29, 2023 | UAL | Share Units | Common Stock | · | · | 873 | Acquired |
| Sept. 30, 2023 | UAL | Share Units | Common Stock | · | · | 855 | Acquired |
| June 30, 2023 | UAL | Share Units | Common Stock | · | · | 666 | Acquired |
| May 25, 2023 | UAL | Share Units | Common Stock | · | · | 3,598 | Acquired |
| March 31, 2023 | UAL | Share Units | Common Stock | · | · | 823 | Acquired |
| Dec. 30, 2022 | UAL | Share Units | Common Stock | · | · | 960 | Acquired |
| Sept. 30, 2022 | UAL | Share Units | Common Stock | · | · | 1,108 | Acquired |
| June 30, 2022 | UAL | Share Units | Common Stock | · | · | 1,045 | Acquired |
| May 26, 2022 | UAL | Share Units | Common Stock | · | · | 3,767 | Acquired |
| March 31, 2022 | UAL | Share Units | Common Stock | · | · | 784 | Acquired |
| Dec. 31, 2021 | UAL | Share Units | Common Stock | · | · | 820 | Acquired |
| Sept. 30, 2021 | UAL | Share Units | Common Stock | · | · | 759 | Acquired |
| June 30, 2021 | UAL | Share Units | Common Stock | · | · | 692 | Acquired |
| May 27, 2021 | UAL | Share Units | Common Stock | · | · | 2,904 | Acquired |
| March 31, 2021 | UAL | Share Units | Common Stock | · | · | 630 | Acquired |
| Dec. 31, 2020 | UAL | Share Units | Common Stock | · | · | 827 | Acquired |
| May 21, 2020 | UAL | Share Units | Common Stock | · | · | 6,592 | Acquired |
| March 31, 2020 | UAL | Share Units | Common Stock | · | · | 1,130 | Acquired |
| Dec. 31, 2019 | UAL | Share Units | Common Stock | · | · | 412 | Acquired |
| Sept. 30, 2019 | UAL | Share Units | Common Stock | · | · | 410 | Acquired |
| June 28, 2019 | UAL | Share Units | Common Stock | · | · | 416 | Acquired |
| May 23, 2019 | UAL | Share Units | Common Stock | · | · | 2,103 | Acquired |
| March 29, 2019 | UAL | Share Units | Common Stock | · | · | 457 | Acquired |
| Dec. 31, 2018 | UAL | Share Units | Common Stock | · | · | 388 | Acquired |
| Sept. 28, 2018 | UAL | Share Units | Common Stock | · | · | 366 | Acquired |
| June 29, 2018 | UAL | Share Units | Common Stock | · | · | 449 | Acquired |
| May 24, 2018 | UAL | Share Units | Common Stock | · | · | 2,284 | Acquired |
| March 30, 2018 | UAL | Share Units | Common Stock | · | · | 443 | Acquired |
| Dec. 29, 2017 | UAL | Share Units | Common Stock | · | · | 452 | Acquired |
| Sept. 29, 2017 | UAL | Share Units | Common Stock | · | · | 501 | Acquired |
| June 30, 2017 | UAL | Share Units | Common Stock | · | · | 405 | Acquired |
| June 9, 2017 | UAL | Share Units | Common Stock | · | June 9, 2017 | 2,707 | Disposed |
| May 25, 2017 | UAL | Share Units | Common Stock | · | · | 1,993 | Acquired |
| March 31, 2017 | UAL | Share Units | Common Stock | · | · | 517 | Acquired |
| June 11, 2016 | UAL | Share Units | Common Stock | · | June 11, 2016 | 2,362 | Disposed |
| June 9, 2016 | UAL | Share Unites | Common Stock | · | June 9, 2017 | 2,707 | Acquired |
| June 12, 2015 | UAL | Share Units | Common Stock | · | June 12, 2015 | 2,916 | Disposed |
| June 11, 2015 | UAL | Share Units | Common Stock | · | June 11, 2016 | 2,362 | Acquired |
| June 13, 2014 | UAL | Share Units | Common Stock | · | June 13, 2014 | 3,869 | Disposed |
| June 12, 2014 | UAL | Share Units | Common Stock | · | June 12, 2015 | 2,916 | Acquired |
| June 13, 2013 | UAL | Share Units | Common Stock | · | June 13, 2014 | 3,869 | Acquired |
| June 13, 2013 | UAL | Share Units | Common Stock | · | June 13, 2013 | 3,560 | Disposed |
| June 13, 2012 | UAL | Share Units | Common Stock | · | June 13, 2013 | 3,560 | Acquired |
| June 9, 2012 | UAL | Share Units | Common Stock | · | June 9, 2012 | 3,636 | Disposed |
| June 9, 2011 | UAL | Share Units | Common Stock | · | · | 3,636 | Acquired |
| Dec. 31, 2010 | UAL | Share Units | Common Stock | · | · | 372 | Acquired |
| Sept. 30, 2010 | UAL | Share Units | Common Stock | · | · | 823 | Acquired |
| June 30, 2010 | UAL | Share Units | Common Stock | · | · | 797 | Acquired |
| June 10, 2010 | UAL | Share Units | Common Stock | · | · | 1,139 | Acquired |
| March 31, 2010 | UAL | Share Units | Common Stock | · | · | 848 | Acquired |
| Dec. 31, 2009 | UAL | Share Units | Common Stock | · | · | 1,432 | Acquired |
| Sept. 30, 2009 | UAL | Share Units | Common Stock | · | · | 1,821 | Acquired |
| June 30, 2009 | UAL | Share Units | Common Stock | · | · | 4,091 | Acquired |
| June 11, 2009 | UAL | Share Units | Common Stock | · | · | 5,889 | Acquired |
| March 31, 2009 | UAL | Share Units | Common Stock | · | · | 3,344 | Acquired |
| Dec. 31, 2008 | UAL | Share Units | Common Stock | · | · | 1,492 | Acquired |
| Sept. 30, 2008 | UAL | Share Units | Common Stock | · | · | 1,364 | Acquired |
| June 30, 2008 | UAL | Share Units | Common Stock | · | · | 2,427 | Acquired |
| March 31, 2008 | UAL | Share Units | Common Stock | · | · | 868 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).