Steven M Seibert

CIK 1301457 · View on SEC EDGAR ↗

Insider

First SEC filing: Oct. 22, 2004 · Latest: Oct. 22, 2004

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 61 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

61 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
March 12, 2014 MOS S 483 $48.50 $23,426 11,468 Direct -4.04% Disposed -51.1% (price as of 2026-08-21)
April 9, 2012 MOS S 815 $51.67 $42,111 9,457 Direct -7.93% Disposed -54.1% (price as of 2026-08-21)
Jan. 28, 2011 MOS S 840 $79.80 $67,032 7,945 Direct -9.56% Disposed -70.3% (price as of 2026-08-21)
Aug. 6, 2009 MOS S 1,683 $54.27 $91,336 7,161 Direct -19.03% Disposed -56.3% (price as of 2026-08-21)
Aug. 22, 2008 MOS S 1,450 $106.35 $154,208 4,637 Direct -23.82% Disposed -77.7% (price as of 2026-08-21)
Jan. 14, 2008 MOS S 835 $103.18 $86,155 2,617 Direct -24.19% Disposed -77.0% (price as of 2026-08-21)

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
May 20, 2024 MOS Restricted Stock Units Common Stock (4,435) — — 4,435 Disposed
May 25, 2023 MOS Restricted Stock Units Common Stock (2,575) — — 2,575 Disposed
May 25, 2023 MOS Restricted Stock Units Common Stock (4,609) — — 4,609 Acquired
May 21, 2023 MOS Restricted Stock Units Common Stock (13,420) — — 13,420 Disposed
May 21, 2023 MOS Restricted Stock Units Common Stock (13,420) — — 13,420 Disposed
May 23, 2022 MOS Restricted Stock Units Common Stock (7,169) — — 7,169 Disposed
May 19, 2022 MOS Restricted Stock Units Common Stock (2,575) — — 2,575 Acquired
May 20, 2021 MOS Restricted Stock Units Common Stock (4,435) — — 4,435 Acquired
May 10, 2021 MOS Restricted Stock Units Common Stock (5,497) — — 5,497 Disposed
May 21, 2020 MOS Restricted Stock Units Common Stock (13,420) — — 13,420 Acquired
May 18, 2020 MOS Restricted Stock Units Common Stock (6,346) — — 6,346 Disposed
May 23, 2019 MOS Restricted Stock Units Common Stock (7,169) — — 7,169 Acquired
May 19, 2019 MOS Restricted Stock Units Common Stock (6,038) — — 6,038 Disposed
May 14, 2018 MOS Restricted Stock Units Common Stock (3,402) — — 3,402 Disposed
May 10, 2018 MOS Restricted Stock Units Common Stock (5,497) — — 5,497 Acquired
May 18, 2017 MOS Restricted Stock Units Common Stock (6,346) — — 6,346 Acquired
May 15, 2017 MOS Restricted Stock Units Common Stock (3,144) — — 3,144 Disposed
Oct. 3, 2016 MOS Restricted Stock Units Common Stock (1,997) — — 1,997 Disposed
May 19, 2016 MOS Restricted Stock Units Common Stock (6,038) — — 6,038 Acquired
Oct. 4, 2015 MOS Restricted Stock Units Common Stock (2,813) — — 2,813 Disposed
May 14, 2015 MOS Restricted Stock Units Common Stock (3,402) — — 3,402 Acquired
Oct. 6, 2014 MOS Restricted Stock Units Common Stock (2,908) — — 2,908 Disposed
May 15, 2014 MOS Restricted Stock Units Common Stock (3,144) — — 3,144 Acquired
Oct. 7, 2013 MOS Restricted Stock Units Common Stock (1,381) — — 1,381 Disposed
Oct. 3, 2013 MOS Restricted Stock Units Common Stock (1,997) — — 1,997 Acquired
Oct. 3, 2013 MOS Restricted Stock Units Common Stock (1,997) — — 1,997 Acquired
Oct. 8, 2012 MOS Restricted Stock Units Common Stock (1,712) — — 1,712 Disposed
Oct. 4, 2012 MOS Restricted Stock Units Common Stock (2,813) — — 2,813 Acquired
Oct. 9, 2011 MOS Restricted Stock Units Common Stock (2,327) — — 2,327 Disposed
Oct. 6, 2011 MOS Restricted Stock Units Common Stock (2,908) — — 2,908 Disposed
Oct. 7, 2010 MOS Restricted Stock Units Common Stock (1,381) — — 1,381 Acquired
Aug. 2, 2010 MOS Restricted Stock Units Common Stock (1,624) — — 1,624 Disposed
Oct. 8, 2009 MOS Restricted Stock Units Common Stock (1,712) — — 1,712 Acquired
Aug. 4, 2009 MOS Restricted Stock Units Common Stock (4,207) — — 4,207 Disposed
Oct. 9, 2008 MOS Restricted Stock Units Common Stock (2,327) — — 2,327 Acquired
Aug. 1, 2008 MOS Restricted Stock Units Common Stock (3,470) — — 3,470 Disposed
Nov. 30, 2007 MOS Restricted Stock Units Common Stock (3,452) — — 3,452 Disposed
Aug. 2, 2007 MOS Restricted Stock Units Common Stock (1,624) — — 1,624 Acquired
Aug. 4, 2006 MOS Grant of Restricted Stock Units Common Stock (4,207) $0.00 — 4,207 Acquired
Aug. 1, 2005 MOS Grant of Restricted Stock Units Common Stock (3,470) $0.00 — 3,470 Acquired
Nov. 30, 2004 MOS Grant of Restricted Stock Units Common Stock (3,452) $0.00 — 3,452 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
Oct. 22, 2004 MOS Common Stock 0 Direct