David M Demski

CIK 1555392 · View on SEC EDGAR ↗

Insider

First SEC filing: Jan. 28, 2013 · Latest: June 12, 2026

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Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 74 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

74 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
April 26, 2021 GMED S 10b5-1 144,263 $71.50 $10,314,804 0 Direct -100.00% Disposed 23.4% (price as of 2026-08-20)
April 23, 2021 GMED S 10b5-1 121,259 $71.59 $8,680,932 0 Direct -100.00% Disposed 23.2% (price as of 2026-08-20)
Dec. 17, 2020 GMED S 10b5-1 164,719 $64.20 $10,574,960 0 Direct -100.00% Disposed 37.4% (price as of 2026-08-20)
Dec. 16, 2020 GMED S 10b5-1 52,356 $64.20 $3,361,255 148,855 Direct -26.02% Disposed 37.4% (price as of 2026-08-20)
Aug. 6, 2020 GMED S 10b5-1 165,000 $57.02 $9,408,300 148,855 Direct -52.57% Disposed 54.7% (price as of 2026-08-20)
Aug. 6, 2020 GMED S 10b5-1 68,100 $56.24 $3,829,944 313,855 Direct -17.83% Disposed 56.8% (price as of 2026-08-20)
Aug. 6, 2020 GMED S 10b5-1 96,900 $55.42 $5,370,198 381,955 Direct -20.24% Disposed 59.2% (price as of 2026-08-20)
Aug. 6, 2020 GMED S 10b5-1 165,000 $57.02 $9,408,300 0 Direct -100.00% Disposed 54.7% (price as of 2026-08-20)
Aug. 6, 2020 GMED S 10b5-1 68,100 $56.24 $3,829,944 165,000 Direct -29.21% Disposed 56.8% (price as of 2026-08-20)
Aug. 6, 2020 GMED S 10b5-1 96,900 $55.42 $5,370,198 233,100 Direct -29.36% Disposed 59.2% (price as of 2026-08-20)
April 19, 2018 GMED S 10b5-1 28,863 $51.00 $1,472,013 148,855 Direct -16.24% Disposed 73.0% (price as of 2026-08-20)
April 19, 2018 GMED S 10b5-1 68,184 $51.00 $3,477,384 148,855 Direct -31.42% Disposed 73.0% (price as of 2026-08-20)
April 18, 2018 GMED S 10b5-1 8,899 $51.00 $453,849 148,855 Direct -5.64% Disposed 73.0% (price as of 2026-08-20)
April 18, 2018 GMED S 10b5-1 43,163 $51.00 $2,201,313 148,855 Direct -22.48% Disposed 73.0% (price as of 2026-08-20)
April 13, 2018 GMED S 10b5-1 3,043 $51.00 $155,193 148,855 Direct -2.00% Disposed 73.0% (price as of 2026-08-20)
April 12, 2018 GMED S 10b5-1 8,794 $51.00 $448,494 148,855 Direct -5.58% Disposed 73.0% (price as of 2026-08-20)
April 12, 2018 GMED S 10b5-1 6,875 $51.00 $350,625 148,855 Direct -4.41% Disposed 73.0% (price as of 2026-08-20)
April 12, 2018 GMED S 10b5-1 28,333 $51.00 $1,444,983 148,855 Direct -15.99% Disposed 73.0% (price as of 2026-08-20)
April 12, 2018 GMED S 10b5-1 3,846 $51.00 $196,146 148,855 Direct -2.52% Disposed 73.0% (price as of 2026-08-20)
Feb. 26, 2015 GMED S 10b5-1 32,510 $26.00 $845,260 148,855 Direct -17.93% Disposed 239.3% (price as of 2026-08-20)
March 6, 2014 GMED S 1,500 $26.61 $39,915 181,365 Direct -0.82% Disposed 231.5% (price as of 2026-08-20)
March 6, 2014 GMED S 269,829 $25.83 $6,969,683 182,865 Direct -59.61% Disposed 241.5% (price as of 2026-08-20)
Jan. 15, 2014 GMED S 10b5-1 96,813 $20.51 $1,985,635 381,365 Direct -20.25% Disposed 330.1% (price as of 2026-08-20)
Dec. 31, 2013 GMED S 10b5-1 3,187 $20.25 $64,537 478,178 Direct -0.66% Disposed 335.6% (price as of 2026-08-20)
Dec. 20, 2013 GMED S 10b5-1 28,954 $19.75 $571,842 481,365 Direct -5.67% Disposed 346.6% (price as of 2026-08-20)
Dec. 19, 2013 GMED S 10b5-1 19,412 $19.75 $383,387 510,319 Direct -3.66% Disposed 346.6% (price as of 2026-08-20)

Showing latest 100 of 120 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
Jan. 27, 2022 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (150,000) $63.68 Jan. 27, 2032 150,000 Acquired
April 26, 2021 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (65,929) $29.31 Aug. 28, 2027 65,929 Disposed
April 26, 2021 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (78,334) $26.27 Jan. 30, 2027 78,334 Disposed
April 23, 2021 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (54,688) $53.27 Jan. 22, 2030 54,688 Disposed
April 23, 2021 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (22,821) $29.31 Aug. 28, 2027 22,821 Disposed
April 23, 2021 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (21,875) $43.58 Jan. 22, 2029 21,875 Disposed
April 23, 2021 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (21,875) $43.77 Jan. 22, 2028 21,875 Disposed
Jan. 14, 2021 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (175,000) $65.05 Jan. 14, 2031 175,000 Acquired
Dec. 17, 2020 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (15,864) $24.10 Jan. 20, 2025 15,864 Disposed
Dec. 16, 2020 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (7,053) $24.10 Jan. 20, 2025 7,053 Disposed
Dec. 16, 2020 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (31,137) $25.52 Jan. 25, 2026 31,137 Disposed
Dec. 16, 2020 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (1,666) $26.27 Jan. 30, 2027 1,666 Disposed
Dec. 16, 2020 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (6,250) $29.31 Aug. 28, 2027 6,250 Disposed
Dec. 16, 2020 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (3,125) $43.58 Jan. 22, 2029 3,125 Disposed
Dec. 16, 2020 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (3,125) $43.77 Jan. 22, 2028 3,125 Disposed
Aug. 6, 2020 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (59,375) $43.58 Jan. 22, 2029 59,375 Disposed
Aug. 6, 2020 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (96,875) $43.77 Jan. 22, 2028 96,875 Disposed
Aug. 6, 2020 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (173,750) $29.31 Aug. 28, 2027 173,750 Disposed
Jan. 22, 2020 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (175,000) $53.27 Jan. 22, 2030 175,000 Acquired
Jan. 22, 2019 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (150,000) $43.58 Jan. 22, 2029 150,000 Acquired
April 19, 2018 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (28,863) $25.52 Jan. 25, 2026 28,863 Disposed
April 19, 2018 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (68,184) $24.10 Jan. 20, 2025 68,184 Disposed
April 18, 2018 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (8,899) $24.10 Jan. 20, 2025 8,899 Disposed
April 18, 2018 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (43,163) $23.95 Jan. 23, 2024 43,163 Disposed
April 13, 2018 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (3,043) $23.95 Jan. 23, 2024 3,043 Disposed
April 12, 2018 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (8,794) $23.95 Jan. 23, 2024 8,794 Disposed
April 12, 2018 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (6,875) $15.34 Aug. 29, 2022 6,875 Disposed
April 12, 2018 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (28,333) $13.04 Jan. 24, 2023 28,333 Disposed
April 12, 2018 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (3,846) $10.66 Oct. 27, 2021 3,846 Disposed
Jan. 22, 2018 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (150,000) $43.77 Jan. 22, 2028 150,000 Acquired
Aug. 28, 2017 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (300,000) $29.31 Aug. 28, 2027 300,000 Acquired
Jan. 30, 2017 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (80,000) $26.27 Jan. 30, 2027 80,000 Acquired
Jan. 25, 2016 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (60,000) $25.52 Jan. 25, 2026 60,000 Acquired
Jan. 20, 2015 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (100,000) $24.10 Jan. 20, 2025 100,000 Acquired
March 6, 2014 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (11,667) $13.04 Jan. 24, 2023 11,667 Disposed
March 6, 2014 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (8,125) $15.34 Aug. 29, 2022 8,125 Disposed
March 6, 2014 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (14,615) $10.66 Oct. 27, 2021 14,615 Disposed
March 6, 2014 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (18,461) $11.87 June 16, 2020 18,461 Disposed
March 6, 2014 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (18,461) $4.88 Aug. 6, 2019 18,461 Disposed
Jan. 23, 2014 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (55,000) $23.95 Jan. 23, 2024 55,000 Acquired
Jan. 24, 2013 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (40,000) $13.04 Jan. 24, 2023 40,000 Acquired
Aug. 29, 2012 GMED Stock Option (Right to Buy Class A Common Stock) Class A Common Stock (15,000) $15.34 Aug. 29, 2022 15,000 Acquired
Aug. 8, 2012 GMED Stock Option (Right to Buy Class A Common Stock) [F2] Class A Common Stock [F2] (18,461) $10.66 Oct. 27, 2021 18,461 Acquired
Aug. 8, 2012 GMED Stock Option (Right to Buy Class A Common Stock) [F2] Class A Common Stock [F2] (18,461) $11.87 June 16, 2020 18,461 Acquired
Aug. 8, 2012 GMED Stock Option (Right to Buy Class A Common Stock) [F2] Class A Common Stock [F2] (18,461) $4.88 Aug. 6, 2019 18,461 Acquired
Aug. 8, 2012 GMED Class B Common Stock Class A Common Stock (990,322) — — 990,322 Disposed

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

Initial ownership (Form 3) 5 holdings

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

Date Ticker Security Shares Ownership
Oct. 19, 2023 ATEC Common Stock 120,000 Direct
Aug. 2, 2012 GMED Class B Common Stock [F1]→ Class A Common Stock — Direct
Aug. 2, 2012 GMED Stock Option (Right to Buy Class C Common Stock) [F2]→ Class C Common Stock [F2] — Direct
Aug. 2, 2012 GMED Stock Option (Right to Buy Class C Common Stock) [F2]→ Class C Common Stock [F2] — Direct
Aug. 2, 2012 GMED Stock Option (Right to Buy Class C Common Stock) [F2]→ Class C Common Stock [F2] — Direct

Compensation (DEF 14A)

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

GMED

CEO
Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2022 $513,446 $30,038 — $3,043,385 $1,129,498 — $20,914 $4,737,281
2021 $498,490 — — $3,397,855 $1,159,536 — $32,711 $5,088,592
2020 $483,972 $960,000 — $2,546,119 — — $36,886 $4,026,977

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