J MICHAEL GEARON JR

CIK 1060571 · View on SEC EDGAR ↗

Insider Activist

First SEC filing: Feb. 3, 2025 · Latest: June 4, 2026

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 25 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

25 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
June 3, 2025 GRND S 19,432 $24.75 $480,942 5,480,568 Indirect -0.35% Disposed -37.5% (price as of 2026-08-21)
June 2, 2025 GRND S 249,700 $24.44 $6,102,668 6,090,959 Indirect -3.94% Disposed -36.7% (price as of 2026-08-21)
May 30, 2025 GRND S 250,300 $24.33 $6,089,799 6,340,659 Indirect -3.80% Disposed -36.4% (price as of 2026-08-21)
May 28, 2025 GRND S 174,858 $23.82 $4,165,118 6,590,959 Indirect -2.58% Disposed -35.0% (price as of 2026-08-21)
May 27, 2025 GRND S 132,697 $23.74 $3,150,227 6,765,817 Indirect -1.92% Disposed -34.8% (price as of 2026-08-21)
May 23, 2025 GRND S 133,346 $24.03 $3,204,304 6,898,514 Indirect -1.90% Disposed -35.6% (price as of 2026-08-21)
May 22, 2025 GRND S 59,099 $24.09 $1,423,695 7,031,860 Indirect -0.83% Disposed -35.7% (price as of 2026-08-21)
May 19, 2025 GRND S 477,570 $23.64 $11,289,755 5,500,000 Indirect -7.99% Disposed -34.5% (price as of 2026-08-21)
May 16, 2025 GRND S 107,002 $23.50 $2,514,547 5,977,570 Indirect -1.76% Disposed -34.1% (price as of 2026-08-21)
May 15, 2025 GRND S 10,155 $23.90 $242,704 6,084,572 Indirect -0.17% Disposed -35.2% (price as of 2026-08-21)
May 14, 2025 GRND S 241,441 $23.95 $5,782,512 6,094,727 Indirect -3.81% Disposed -35.4% (price as of 2026-08-21)
May 13, 2025 GRND S 283,559 $24.13 $6,842,279 6,336,168 Indirect -4.28% Disposed -35.8% (price as of 2026-08-21)
May 12, 2025 GRND S 500,000 $23.71 $11,855,000 6,619,727 Indirect -7.02% Disposed -34.7% (price as of 2026-08-21)
Feb. 10, 2025 GRND S 84,964 $6.50 $552,266 0 Indirect -100.00% Disposed 138.2% (price as of 2026-08-21)
Feb. 10, 2025 GRND S 84,964 $6.50 $552,266 26,977 Indirect -75.90% Disposed 138.2% (price as of 2026-08-21)
Feb. 4, 2025 GRND S 90,661 $6.55 $593,830 111,941 Indirect -44.75% Disposed 136.3% (price as of 2026-08-21)
Feb. 3, 2025 GRND S 53,339 $6.54 $348,837 202,602 Indirect -20.84% Disposed 136.7% (price as of 2026-08-21)
Jan. 31, 2025 GRND S 114,459 $6.44 $737,116 255,941 Indirect -30.90% Disposed 140.4% (price as of 2026-08-21)
Jan. 30, 2025 GRND S 150,000 $6.50 $975,000 370,400 Indirect -28.82% Disposed 138.2% (price as of 2026-08-21)
Jan. 29, 2025 GRND S 175,000 $6.52 $1,141,000 520,400 Indirect -25.17% Disposed 137.4% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 4,848 $26.40 $127,987 2,424 Indirect -66.67% Disposed 569.2% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 2,424 $26.42 $64,042 0 Indirect -100.00% Disposed 568.7% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 66,800 $26.10 $1,743,480 540,807 Indirect -10.99% Disposed 576.9% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 11,000 $26.11 $287,210 529,807 Indirect -2.03% Disposed 576.7% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 46,500 $26.12 $1,214,580 483,307 Indirect -8.78% Disposed 576.4% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 1,100 $26.13 $28,743 482,207 Indirect -0.23% Disposed 576.2% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 19,600 $26.14 $512,344 462,607 Indirect -4.06% Disposed 575.9% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 18,300 $26.16 $478,728 444,307 Indirect -3.96% Disposed 575.4% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 4,500 $26.17 $117,765 439,807 Indirect -1.01% Disposed 575.1% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 19,500 $26.18 $510,510 420,307 Indirect -4.43% Disposed 574.9% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 37,700 $26.19 $987,363 382,607 Indirect -8.97% Disposed 574.6% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 14,900 $26.20 $390,380 367,707 Indirect -3.89% Disposed 574.4% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 3,300 $26.21 $86,493 364,407 Indirect -0.90% Disposed 574.1% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 400 $26.22 $10,488 364,007 Indirect -0.11% Disposed 573.8% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 65,000 $26.30 $1,709,500 299,007 Indirect -17.86% Disposed 571.8% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 10,000 $26.31 $263,100 289,007 Indirect -3.34% Disposed 571.5% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 26,500 $26.32 $697,480 262,507 Indirect -9.17% Disposed 571.3% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 10,000 $26.33 $263,300 252,507 Indirect -3.81% Disposed 571.0% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 6,400 $26.34 $168,576 246,107 Indirect -2.53% Disposed 570.8% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 31,000 $26.35 $816,850 215,107 Indirect -12.60% Disposed 570.5% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 7,500 $26.36 $197,700 207,607 Indirect -3.49% Disposed 570.3% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 14,300 $26.37 $377,091 193,307 Indirect -6.89% Disposed 570.0% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 6,500 $26.38 $171,470 186,807 Indirect -3.36% Disposed 569.7% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 5,300 $26.39 $139,867 181,507 Indirect -2.84% Disposed 569.5% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 92,900 $26.40 $2,452,560 88,607 Indirect -51.18% Disposed 569.2% (price as of 2026-08-21)
Nov. 14, 2005 AMT S 8,500 $26.41 $224,485 80,107 Indirect -9.59% Disposed 569.0% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 1,600 $26.15 $41,840 1,496,007 Indirect -0.11% Disposed 575.6% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 3,300 $26.16 $86,328 1,492,707 Indirect -0.22% Disposed 575.4% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 15,100 $26.17 $395,167 1,477,607 Indirect -1.01% Disposed 575.1% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 6,500 $26.18 $170,170 1,471,107 Indirect -0.44% Disposed 574.9% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 7,800 $26.19 $204,282 1,463,307 Indirect -0.53% Disposed 574.6% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 52,400 $26.20 $1,372,880 1,410,907 Indirect -3.58% Disposed 574.4% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 38,500 $26.21 $1,009,085 1,372,407 Indirect -2.73% Disposed 574.1% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 11,000 $26.22 $288,420 1,361,407 Indirect -0.80% Disposed 573.8% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 42,900 $26.23 $1,125,267 1,318,507 Indirect -3.15% Disposed 573.6% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 44,700 $26.24 $1,172,928 1,273,807 Indirect -3.39% Disposed 573.3% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 83,000 $26.25 $2,178,750 1,190,807 Indirect -6.52% Disposed 573.1% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 6,200 $26.27 $162,874 1,184,607 Indirect -0.52% Disposed 572.6% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 2,700 $26.29 $70,983 1,181,907 Indirect -0.23% Disposed 572.0% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 4,300 $26.30 $113,090 1,177,607 Indirect -0.36% Disposed 571.8% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 10,000 $26.33 $263,300 1,167,607 Indirect -0.85% Disposed 571.0% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 10,000 $26.34 $263,400 1,157,607 Indirect -0.86% Disposed 570.8% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 67,400 $26.35 $1,775,990 1,090,207 Indirect -5.82% Disposed 570.5% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 70,900 $26.36 $1,868,924 1,019,307 Indirect -6.50% Disposed 570.3% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 18,300 $26.37 $482,571 1,001,007 Indirect -1.80% Disposed 570.0% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 28,500 $26.38 $751,830 972,507 Indirect -2.85% Disposed 569.7% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 9,400 $26.39 $248,066 963,107 Indirect -0.97% Disposed 569.5% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 260,500 $26.40 $6,877,200 702,607 Indirect -27.05% Disposed 569.2% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 13,000 $26.41 $343,330 689,607 Indirect -1.85% Disposed 569.0% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 23,100 $26.42 $610,302 666,507 Indirect -3.35% Disposed 568.7% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 27,400 $26.43 $724,182 639,107 Indirect -4.11% Disposed 568.5% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 7,300 $26.44 $193,012 631,807 Indirect -1.14% Disposed 568.2% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 13,900 $26.45 $367,655 617,907 Indirect -2.20% Disposed 568.0% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 300 $26.46 $7,938 617,607 Indirect -0.05% Disposed 567.7% (price as of 2026-08-21)
Nov. 11, 2005 AMT S 10,000 $26.47 $264,700 607,607 Indirect -1.62% Disposed 567.5% (price as of 2026-08-21)

Showing latest 100 of 304 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. 10, 2025 GRND Warrants Common Stock (84,964) $11.50 — 84,964 Disposed
Feb. 10, 2025 GRND Warrants Common Stock (84,964) $11.50 — 84,964 Disposed
Feb. 4, 2025 GRND Warrants Common Stock (90,661) $11.50 — 90,661 Disposed
Feb. 3, 2025 GRND Warrants Common Stock (53,339) $11.50 — 53,339 Disposed
Jan. 31, 2025 GRND Warrants Common Stock (114,459) $11.50 — 114,459 Disposed
Jan. 30, 2025 GRND Warrants Common Stock (150,000) $11.50 — 150,000 Disposed
Jan. 29, 2025 GRND Warrants Common Stock (175,000) $11.50 — 175,000 Disposed
Jan. 27, 2025 GRND Warrants Common Stock (26,977) $11.50 — 26,977 Disposed
Dec. 29, 2006 AMT Option to Purchase Class A Common Stock Class A Common Stock (100,000) $3.04 Dec. 9, 2012 100,000 Disposed
Dec. 29, 2006 AMT Option to Purchase Class A Common Stock Class A Common Stock (100,000) $3.60 Dec. 9, 2012 100,000 Acquired
Dec. 29, 2006 AMT Option to Purchase Class A Common Stock Class A Common Stock (100,000) $23.75 Dec. 1, 2008 100,000 Disposed
Dec. 29, 2006 AMT Option to Purchase Class A Common Stock Class A Common Stock (100,000) $28.25 Dec. 1, 2008 100,000 Acquired
Dec. 29, 2006 AMT Option to Purchase Class A Common Stock Class A Common Stock (100,000) $23.81 Nov. 11, 2009 100,000 Disposed
Dec. 29, 2006 AMT Option to Purchase Class A Common Stock Class A Common Stock (100,000) $53.62 Nov. 11, 2009 100,000 Acquired
March 1, 2006 AMT Option to Purchase Class A Common Stock Class A Common Stock (125,000) $31.50 March 1, 2016 125,000 Acquired
Dec. 22, 2005 AMT Option to Purchase Class A Common Stock Class A Common Stock (38,460) $13.00 Jan. 22, 2008 38,460 Disposed
Dec. 22, 2005 AMT Option to Purchase Class A Common Stock Class A Common Stock (2,285) $10.50 Nov. 17, 2013 2,285 Disposed
April 1, 2005 AMT Option to Purchase Class A Common Stock Class A Common Stock (125,000) $18.15 April 1, 2015 125,000 Acquired
March 4, 2004 AMT Option to purchase Class A Common Stock Class A Common Stock (290,000) $12.11 March 4, 2014 290,000 Disposed
Nov. 17, 2003 AMT Option to purchase Class A Common Stock — $10.50 Nov. 17, 2013 250,000 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 2 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date Ticker Security Shares Ownership
Nov. 22, 2022 GRND Common Stock, par value $0.0001 per share 14,948,334 Indirect
Nov. 22, 2022 GRND Warrants→ Common Stock (519,775) 519,775 Indirect

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

AMT

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2007 $112,915 — — — — — $4,500 $4,808,947
2006 $475,000 — — — $321,000 — $16,672 $1,952,674
2004 $412,500 $250,000 — — — — $16,074 —

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.