BLACK, LEON D
CIK 1032666 · View on SEC EDGAR ↗
Activist
First SEC filing: July 22, 2025 · Latest: July 22, 2025
On this page
Insider at
Insider transactions
0 buys (P)
1 sells (S)
Net:
$-122,637,450
+ 43 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
43 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 4, 2025 | APOS | S | 915,000 | $134.03 | $122,637,450 | 4,526,000 Indirect | -16.82% | Disposed | -81.0% (price as of 2026-08-19) |
| April 4, 2025 | APOS | S | 607,725 | $111.40 | $67,700,565 | 33,997,048 Direct | -1.76% | Disposed | -77.2% (price as of 2026-08-19) |
| March 19, 2025 | APOS | S | 1,929 | $142.52 | $274,921 | 34,604,773 Direct | -0.01% | Disposed | -82.2% (price as of 2026-08-19) |
| March 19, 2025 | APOS | S | 498,071 | $142.00 | $70,726,082 | 34,606,702 Direct | -1.42% | Disposed | -82.1% (price as of 2026-08-19) |
| Dec. 4, 2024 | APOS | S | 7,819 | $174.06 | $1,360,975 | 5,500,000 Indirect | -0.14% | Disposed | -85.4% (price as of 2026-08-19) |
| Dec. 4, 2024 | APOS | S | 50,381 | $173.26 | $8,729,012 | 5,507,819 Indirect | -0.91% | Disposed | -85.3% (price as of 2026-08-19) |
| Dec. 4, 2024 | APOS | S | 7,819 | $174.06 | $1,360,975 | 35,104,773 Direct | -0.02% | Disposed | -85.4% (price as of 2026-08-19) |
| Dec. 4, 2024 | APOS | S | 50,381 | $173.26 | $8,729,012 | 35,112,592 Direct | -0.14% | Disposed | -85.3% (price as of 2026-08-19) |
| Dec. 3, 2024 | APOS | S | 150 | $174.23 | $26,134 | 5,558,200 Indirect | 0.00% | Disposed | -85.4% (price as of 2026-08-19) |
| Dec. 3, 2024 | APOS | S | 89,973 | $173.66 | $15,624,711 | 5,558,350 Indirect | -1.59% | Disposed | -85.4% (price as of 2026-08-19) |
| Dec. 3, 2024 | APOS | S | 218,277 | $173.01 | $37,764,104 | 5,648,323 Indirect | -3.72% | Disposed | -85.3% (price as of 2026-08-19) |
| Dec. 3, 2024 | APOS | S | 150 | $174.23 | $26,134 | 35,162,973 Direct | 0.00% | Disposed | -85.4% (price as of 2026-08-19) |
| Dec. 3, 2024 | APOS | S | 89,972 | $173.66 | $15,624,538 | 35,163,123 Direct | -0.26% | Disposed | -85.4% (price as of 2026-08-19) |
| Dec. 3, 2024 | APOS | S | 218,278 | $173.01 | $37,764,277 | 35,253,095 Direct | -0.62% | Disposed | -85.3% (price as of 2026-08-19) |
| Dec. 2, 2024 | APOS | S | 23,249 | $175.41 | $4,078,107 | 5,866,600 Indirect | -0.39% | Disposed | -85.5% (price as of 2026-08-19) |
| Dec. 2, 2024 | APOS | S | 44,229 | $174.94 | $7,737,421 | 5,889,849 Indirect | -0.75% | Disposed | -85.5% (price as of 2026-08-19) |
| Dec. 2, 2024 | APOS | S | 21,154 | $173.58 | $3,671,911 | 5,934,078 Indirect | -0.36% | Disposed | -85.4% (price as of 2026-08-19) |
| Dec. 2, 2024 | APOS | S | 44,768 | $173.02 | $7,745,759 | 5,955,232 Indirect | -0.75% | Disposed | -85.3% (price as of 2026-08-19) |
| Dec. 2, 2024 | APOS | S | 23,249 | $175.41 | $4,078,107 | 35,471,373 Direct | -0.07% | Disposed | -85.5% (price as of 2026-08-19) |
| Dec. 2, 2024 | APOS | S | 44,229 | $174.94 | $7,737,421 | 35,494,622 Direct | -0.12% | Disposed | -85.5% (price as of 2026-08-19) |
| Dec. 2, 2024 | APOS | S | 21,154 | $173.58 | $3,671,911 | 35,538,851 Direct | -0.06% | Disposed | -85.4% (price as of 2026-08-19) |
| Dec. 2, 2024 | APOS | S | 44,768 | $173.02 | $7,745,759 | 35,560,005 Direct | -0.13% | Disposed | -85.3% (price as of 2026-08-19) |
| March 19, 2024 | APOS | S | 450,000 | $110.71 | $49,819,500 | 42,604,773 Direct | -1.05% | Disposed | -77.0% (price as of 2026-08-19) |
| Feb. 24, 2024 | APOS | S | 32,459 | $112.00 | $3,635,408 | 43,054,773 Direct | -0.08% | Disposed | -77.3% (price as of 2026-08-19) |
| Feb. 24, 2024 | APOS | S | 267,541 | $111.45 | $29,817,444 | 43,087,232 Direct | -0.62% | Disposed | -77.2% (price as of 2026-08-19) |
| Feb. 23, 2024 | APOS | S | 171,185 | $111.92 | $19,159,025 | 43,354,773 Direct | -0.39% | Disposed | -77.3% (price as of 2026-08-19) |
| Feb. 23, 2024 | APOS | S | 578,815 | $111.44 | $64,503,144 | 43,525,958 Direct | -1.31% | Disposed | -77.2% (price as of 2026-08-19) |
| Feb. 22, 2024 | APOS | S | 72,587 | $112.16 | $8,141,358 | 44,104,773 Direct | -0.16% | Disposed | -77.3% (price as of 2026-08-19) |
| Feb. 22, 2024 | APOS | S | 427,413 | $111.32 | $47,579,615 | 44,177,360 Direct | -0.96% | Disposed | -77.2% (price as of 2026-08-19) |
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. 7, 2026 | APOS | Forward Sale Contract (obligation to sell) [F2,F3,F4] | Common Stock | — | — | 1 | Acquired |
| July 18, 2025 | APOS | Forward Sale Contract (obligation to sell) [F1,F2,F3,F4] | Common Stock | — | — | 1 | Acquired |
| May 26, 2011 | SIRI | Stock Option (Right to Buy) | Common Stock (59,905) | $2.33 | May 26, 2021 | 59,905 | Acquired |
| May 27, 2010 | SIRI | Stock Option (Right to Buy) | Common Stock (102,015) | $1.00 | May 27, 2020 | 102,015 | Acquired |
| Aug. 5, 2009 | SIRI | Stock Option (Right to Buy) | Common Stock (53,973) | $0.54 | May 27, 2019 | 53,973 | Acquired |
| May 27, 2009 | SIRI | Stock Option (Right to Buy) | Common Stock (214,237) | $0.35 | May 27, 2019 | 214,237 | Acquired |
| Dec. 18, 2008 | SIRI | Stock Option (Right to Buy) | Common Stock (850,237) | $0.14 | Dec. 18, 2018 | 850,237 | Acquired |
| Jan. 24, 2008 | URI | Phantom Stock Units | Common Stock (2,537) | — | — | 2,537 | Acquired |
| Aug. 15, 2007 | SIRI | Stock Option (Right to Buy) | Common Stock (45,962) | $2.90 | Aug. 15, 2017 | 45,962 | Acquired |
| July 26, 2007 | URI | Phantom Stock Units | Common Stock (1,230) | — | — | 1,230 | Acquired |
| June 5, 2007 | URI | Restricted Stock Units | Common Stock (1,330) | — | — | 1,330 | Acquired |
| Jan. 25, 2007 | URI | Phantom Stock Units | Common Stock (1,178) | — | — | 1,178 | Acquired |
| July 18, 2006 | URI | Phantom Stock Units | Common Stock (1,220) | — | — | 1,220 | Acquired |
| June 14, 2006 | URI | Restricted Stock Units | Common Stock (1,706) | — | — | 1,706 | Acquired |
| May 24, 2006 | SIRI | Stock Option (Right to Buy) | Common Stock (11,326) | $3.90 | May 24, 2016 | 11,326 | Acquired |
| Jan. 23, 2006 | URI | Phantom Stock Units | Common Stock (1,036) | — | — | 1,036 | Acquired |
| July 26, 2005 | URI | Phantom Stock Units | Common Stock (1,087) | — | — | 1,087 | Acquired |
| May 25, 2005 | SIRI | Stock Option (Right to Buy) | Common Stock (7,307) | $5.64 | May 25, 2015 | 7,307 | Acquired |
| March 2, 2005 | URI | Stock Option | Common Stock (3,000) | $19.76 | March 2, 2015 | 3,000 | Acquired |
| Jan. 6, 2005 | URI | Phantom Stock Units | Common Stock (1,307) | — | — | 1,307 | Acquired |
| July 1, 2004 | URI | Phantom Stock Units | Common Stock (1,220) | — | — | 1,220 | Acquired |
| June 17, 2004 | SIRI | Stock Option (Right to Buy) | Common Stock (20,537) | $2.10 | Nov. 25, 2013 | 20,537 | Acquired |
| June 17, 2004 | SIRI | Stock Option (Right to Buy) | Common Stock (14,281) | $3.02 | May 25, 2014 | 14,281 | Acquired |
| Feb. 26, 2004 | URI | Stock Option | Common Stock (3,000) | $16.38 | Feb. 26, 2014 | 3,000 | Acquired |
| Dec. 15, 2003 | URI | Phantom Stock Units | Common Stock (63) | — | Aug. 8, 1988 | 63 | Acquired |
| Sept. 23, 2003 | URI | Phantom Stock Units | Common Stock (470) | — | Aug. 8, 1988 | 470 | 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 |
|---|---|---|---|---|
| Jan. 3, 2022 | APOS | Common Stock | — | Direct |