William M Diefenderfer III
CIK 1086476 · View on SEC EDGAR ↗
First SEC filing: Feb. 1, 2010 · Latest: Feb. 1, 2010
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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 |
|---|---|---|---|---|---|---|---|---|---|
| Nov. 17, 2016 | JSM | S | 18,590 | $17.65 | $328,114 | 100,728 Direct | -15.58% | Disposed | 0.1% (price as of 2026-08-20) |
| Sept. 9, 2016 | CUBE | S | 2,961 | $27.25 | $80,687 | 25,039 Indirect | -10.57% | Disposed | 52.7% (price as of 2026-08-20) |
| Aug. 19, 2016 | JSM | S | 16,300 | $14.20 | $231,460 | 88,737 Direct | -15.52% | Disposed | 24.4% (price as of 2026-08-20) |
| Nov. 9, 2012 | SLMBP | S | 17,170 | $16.99 | $291,718 | 91,216 Direct | -15.84% | Disposed | 339.6% (price as of 2026-08-20) |
| Feb. 15, 2012 | SLMBP | P | 600 | $44.00 | $26,400 | 1,800 Direct | +50.00% | Acquired | 69.8% (price as of 2026-08-20) |
| Feb. 14, 2012 | SLMBP | P | 200 | $43.90 | $8,780 | 1,200 Direct | +20.00% | Acquired | 70.1% (price as of 2026-08-20) |
Showing latest 100 of 242 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 |
|---|---|---|---|---|---|---|---|
| Feb. 5, 2019 | JSM | Phantom Stock Units | Common Stock (17,045) | — | — | 17,045 | Acquired |
| April 16, 2018 | CUBE | Phantom Shares | Common (188) | — | — | 188 | Acquired |
| Feb. 5, 2018 | JSM | Phantom Stock Units | Common Stock (14,307) | — | — | 14,307 | Acquired |
| Jan. 16, 2018 | CUBE | Phantom Shares | Common (191) | — | — | 191 | Acquired |
| Oct. 16, 2017 | CUBE | Phantom Shares | Common (178) | — | — | 178 | Acquired |
| July 17, 2017 | CUBE | Phantom Shares | Common (191) | — | — | 191 | Acquired |
| May 31, 2017 | CUBE | Phantom Shares | Common (4,007) | — | — | 4,007 | Acquired |
| April 17, 2017 | CUBE | Phantom Shares | Common (125) | — | — | 125 | Acquired |
| Feb. 6, 2017 | JSM | Phantom Stock Units | Common Stock (12,597) | — | — | 12,597 | Acquired |
| Jan. 17, 2017 | CUBE | Phantom Shares | Common (135) | — | — | 135 | Acquired |
| Nov. 17, 2016 | JSM | Stock Option (Right to Buy) | Common Stock (19,572) | $11.49 | Feb. 7, 2018 | 19,572 | Disposed |
| Nov. 17, 2016 | JSM | Stock Option (Right to Buy) | Common Stock (13,994) | $10.26 | Feb. 3, 2017 | 13,994 | Disposed |
| Nov. 17, 2016 | JSM | Stock Option (Right to Buy) | Common Stock (9,500) | $9.38 | Jan. 27, 2021 | 9,500 | Disposed |
| Nov. 17, 2016 | JSM | Stock Option (Right to Buy) | Common Stock (10,900) | $6.61 | Jan. 28, 2020 | 10,900 | Disposed |
| Nov. 17, 2016 | JSM | Stock Option (Right to Buy) | Common Stock (6,600) | $14.29 | May 8, 2018 | 6,600 | Disposed |
| Oct. 17, 2016 | CUBE | Phantom Shares | Common (102) | — | — | 102 | Acquired |
| July 15, 2016 | CUBE | Phantom Shares | Common (86) | — | — | 86 | Acquired |
| April 15, 2016 | CUBE | Phantom Shares | Common (82) | — | — | 82 | Acquired |
| Feb. 3, 2016 | JSM | Phantom Stock Units | Common Stock (16,340) | — | — | 16,340 | Acquired |
| Jan. 15, 2016 | CUBE | Phantom Shares | Common (85) | — | — | 85 | Acquired |
| Oct. 15, 2015 | CUBE | Phantom Shares | Common (72) | — | — | 72 | Acquired |
| July 15, 2015 | CUBE | Phantom Shares | Common (79) | — | — | 79 | Acquired |
| April 15, 2015 | CUBE | Phantom Shares | Common (85) | — | — | 85 | Acquired |
| Feb. 18, 2015 | JSM | Phantom Stock Units | Common Stock (6,928) | — | — | 6,928 | Acquired |
| Feb. 3, 2015 | JSM | Phantom Stock Units | Common Stock (8,117) | — | — | 8,117 | Acquired |
| Jan. 15, 2015 | CUBE | Phantom Shares | Common (79) | — | — | 79 | Acquired |
| Oct. 15, 2014 | CUBE | Phantom Shares | Common (80) | — | — | 80 | Acquired |
| July 15, 2014 | CUBE | Phantom Shares | Common (84) | — | — | 84 | Acquired |
| May 28, 2014 | CUBE | Phantom Shares | Common (5,710) | — | — | 5,710 | Acquired |
| April 30, 2014 | JSM | Phantom Stock Units | Common Stock (6,807) | — | — | 6,807 | Acquired |
| April 30, 2014 | JSM | Stock Option (Right to Buy) | Common Stock (19,572) | — | Feb. 7, 2018 | 19,572 | Acquired |
| April 30, 2014 | JSM | Stock Option (Right to Buy) | Common Stock (13,994) | — | Feb. 3, 2017 | 13,994 | Acquired |
| April 30, 2014 | JSM | Stock Option (Right to Buy) | Common Stock (9,500) | — | Jan. 27, 2021 | 9,500 | Acquired |
| April 30, 2014 | JSM | Stock Option (Right to Buy) | Common Stock (10,900) | — | Jan. 28, 2020 | 10,900 | Acquired |
| April 30, 2014 | JSM | Stock Option (Right to Buy) | Common Stock (6,600) | — | May 8, 2018 | 6,600 | Acquired |
| April 30, 2014 | JSM | Stock Option (Right to Buy) | Common Stock (12,500) | — | Jan. 25, 2017 | 12,500 | Acquired |
| April 30, 2014 | JSM | Stock Option (Right to Buy) | Common Stock (19,070) | — | Jan. 26, 2016 | 19,070 | Acquired |
| April 30, 2014 | JSM | Stock Option (Right to Buy) | Common Stock (15,250) | — | Jan. 27, 2015 | 15,250 | Acquired |
| April 15, 2014 | CUBE | Phantom Shares | Common (44) | — | — | 44 | Acquired |
| March 31, 2014 | CUBE | Phantom Shares | Common (1,304) | — | — | 1,304 | Acquired |
| Jan. 15, 2014 | CUBE | Phantom Shares | Common (39) | — | — | 39 | Acquired |
| Oct. 15, 2013 | CUBE | Phantom Shares | Common (28) | — | — | 28 | Acquired |
| July 15, 2013 | CUBE | Phantom Shares | Common (31) | — | — | 31 | Acquired |
| April 15, 2013 | CUBE | Phantom Shares | Common (33) | — | — | 33 | Acquired |
| Feb. 7, 2013 | SLMBP | Stock Options (Right to Buy) | Common Stock (19,572) | $17.91 | Feb. 7, 2018 | 19,572 | Acquired |
| Jan. 15, 2013 | CUBE | Phantom Shares | Common (36) | — | — | 36 | Acquired |
| Nov. 9, 2012 | SLMBP | Stock Options (Right to Buy) | Common Stock (26,000) | $5.77 | May 22, 2019 | 26,000 | Disposed |
| Oct. 15, 2012 | CUBE | Phantom Shares | Common (29) | — | — | 29 | Acquired |
| July 16, 2012 | CUBE | Phantom Shares | Common (31) | — | — | 31 | Acquired |
| April 16, 2012 | CUBE | Phantom Shares | Common (31) | — | — | 31 | Acquired |
| Feb. 3, 2012 | SLMBP | Stock Options (Right to Buy) | Common Stock (13,994) | $15.99 | Feb. 3, 2017 | 13,994 | Acquired |
| Jan. 15, 2012 | CUBE | Phantom Shares | Common (35) | — | — | 35 | Acquired |
| Oct. 21, 2011 | CUBE | Phantom Shares | Common (33) | — | — | 33 | Acquired |
| July 22, 2011 | CUBE | Phantom Shares | Common (28) | — | — | 28 | Acquired |
| April 22, 2011 | CUBE | Phantom Shares | Common (29) | — | — | 29 | Acquired |
| Jan. 27, 2011 | SLMBP | Stock Options (Right to Buy) | Common Stock (9,500) | $14.62 | Jan. 27, 2021 | 9,500 | Acquired |
| Jan. 21, 2011 | CUBE | Phantom Shares | Common (34) | — | — | 34 | Acquired |
| Oct. 22, 2010 | CUBE | Phantom Shares | Common (13) | — | — | 13 | Acquired |
| July 22, 2010 | CUBE | Phantom Shares | Common (14) | — | — | 14 | Acquired |
| April 22, 2010 | CUBE | Phantom Shares | Common (14) | — | — | 14 | Acquired |
| Jan. 28, 2010 | SLMBP | Stock Option (Right to Buy) | Common Stock (10,900) | $10.31 | Jan. 28, 2020 | 10,900 | Acquired |
| Jan. 22, 2010 | CUBE | Phantom Shares | Common (16) | — | — | 16 | Acquired |
| Oct. 22, 2009 | CUBE | Phantom Shares | Common (17) | — | — | 17 | Acquired |
| July 22, 2009 | CUBE | Phantom Shares | Common (25) | — | — | 25 | Acquired |
| May 22, 2009 | SLMBP | Stock Option (Right to Buy) | Common Stock (26,000) | $5.77 | May 22, 2019 | 26,000 | Acquired |
| April 22, 2009 | CUBE | Phantom Shares | Common (33) | — | — | 33 | Acquired |
| Jan. 22, 2009 | CUBE | Phantom Shares | Common (30) | — | — | 30 | Acquired |
| Oct. 22, 2008 | CUBE | Phantom Shares | Common (117) | — | — | 117 | Acquired |
| July 22, 2008 | CUBE | Phantom Shares | Common (60) | — | — | 60 | Acquired |
| May 8, 2008 | SLMBP | Stock Option (Right to Buy) | Common Stock (6,600) | $22.28 | May 8, 2018 | 6,600 | Acquired |
| April 22, 2008 | CUBE | Phantom Shares | Common (65) | — | — | 65 | Acquired |
| Jan. 22, 2008 | CUBE | Phantom Shares | Common Shares (86) | — | — | 86 | Acquired |
| Jan. 2, 2008 | CUBE | Phantom Shares | Common Shares (1,382) | — | — | 1,382 | Acquired |
| Nov. 7, 2007 | SLMBP | Stock Option (Right to Buy) | Common Stock (9,951) | $30.33 | Nov. 21, 2007 | 9,951 | Disposed |
| Oct. 26, 2007 | CUBE | Phantom Shares | Common Shares (54) | — | — | 54 | Acquired |
| Oct. 1, 2007 | CUBE | Phantom Shares | Common Shares (908) | — | — | 908 | Acquired |
| July 24, 2007 | CUBE | Phantom Shares | Common Shares (31) | — | — | 31 | Acquired |
| July 2, 2007 | CUBE | Phantom Shares | Common Shares (660) | — | — | 660 | Acquired |
| April 24, 2007 | CUBE | Phantom Shares | Common Shares (14) | — | — | 14 | Acquired |
| April 2, 2007 | CUBE | Phantom Shares | Common Shares (933) | — | — | 933 | Acquired |
| Jan. 25, 2007 | SLMBP | Stock Option (Right to Buy) | Common Stock (12,500) | $45.41 | Jan. 25, 2017 | 12,500 | Acquired |
| Nov. 21, 2006 | SLMBP | Stock Option (Right to Buy) | Common Stock (869) | $46.28 | May 20, 2009 | 869 | Acquired |
| Nov. 21, 2006 | SLMBP | Stock Option (Right to Buy) | Common Stock (15,063) | $24.13 | May 20, 2009 | 15,063 | Disposed |
| Nov. 21, 2006 | SLMBP | Stock Option (Right to Buy) | Common Stock (13,842) | $19.19 | May 20, 2009 | 13,842 | Disposed |
| Nov. 21, 2006 | SLMBP | Stock Option (Right to Buy) | Common Stock (2,795) | $14.44 | May 20, 2009 | 2,795 | Disposed |
| Nov. 21, 2006 | SLMBP | Stock Option (Right to Buy) | Common Stock (7,719) | $19.19 | Nov. 21, 2007 | 7,719 | Disposed |
| Jan. 27, 2006 | SLMBP | Phantom Stock Units | Common Stock (213) | — | — | 213 | Acquired |
| Jan. 26, 2006 | SLMBP | Phantom Stock Units | Common Stock (134) | — | — | 134 | Acquired |
| Jan. 26, 2006 | SLMBP | Stock Option (Right to Buy) | Common Stock (19,070) | $55.82 | Jan. 26, 2016 | 19,070 | Acquired |
| Sept. 12, 2005 | SLMBP | Stock Option (Right to Buy) | Common Stock (21,000) | $14.44 | May 20, 2009 | 21,000 | Disposed |
| Sept. 12, 2005 | SLMBP | Stock Option (Right to Buy) | Common Stock (5,775) | $53.00 | May 20, 2009 | 5,775 | Acquired |
| Jan. 27, 2005 | SLMBP | Stock Option (Right To Buy) | Common Stock (15,250) | $50.75 | Jan. 27, 2015 | 15,250 | Acquired |
| Dec. 17, 2004 | SLMBP | Phantom Stock Units | Common Stock (12) | — | — | 12 | Acquired |
| Oct. 27, 2004 | SLMBP | Phantom Stock Units | Common Stock (44) | — | — | 44 | Acquired |
| Sept. 17, 2004 | SLMBP | Phantom Stock Units | Common Stock (15) | — | — | 15 | Acquired |
| July 28, 2004 | SLMBP | Phantom Stock Units | Common Stock (54) | — | — | 54 | Acquired |
| June 18, 2004 | SLMBP | Phantom Stock Units | Common Stock (16) | — | — | 16 | Acquired |
| May 12, 2004 | SLMBP | Phantom Stock Units | Common Stock (52) | — | — | 52 | Acquired |
| March 19, 2004 | SLMBP | Phantom Stock Units | Common Stock (14) | — | — | 14 | Acquired |
| March 16, 2004 | SLMBP | Phantom Stock Units | Common Stock (49) | — | — | 49 | Acquired |
Showing latest 100 of 108 transactions
Exercise/conversion price is blank when not applicable (e.g. RSUs).