Ronald G Roth

CIK 1257956 · View on SEC EDGAR ↗

Insider

First SEC filing: March 2, 2026 · Latest: March 2, 2026

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Insider transactions

1 buys (P) 0 sells (S) Net: $300,600 + 18 non-open-market transactions below Avg return of open purchases vs now: -8.1% 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

18 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Dec. 15, 2025 CLFD P 10,000 $30.06 $300,600 1,279,264 Direct +0.79% Acquired -8.1% (price as of 2026-08-20)
Dec. 5, 2024 CLFD P 5,000 $31.00 $155,000 1,266,796 Direct +0.40% Acquired -10.8% (price as of 2026-08-20)
May 23, 2024 CLFD P 2,000 $36.40 $72,800 1,261,796 Direct +0.16% Acquired -24.1% (price as of 2026-08-20)
Feb. 23, 2024 CLFD P 2,000 $29.62 $59,240 1,259,796 Direct +0.16% Acquired -6.7% (price as of 2026-08-20)
Feb. 7, 2023 CLFD P 3,100 $64.00 $198,400 1,254,783 Direct +0.25% Acquired -56.8% (price as of 2026-08-20)
Feb. 9, 2022 CLFD P 2,000 $61.84 $123,680 1,251,289 Direct +0.16% Acquired -55.3% (price as of 2026-08-20)
Feb. 10, 2021 CLFD P 1,500 $33.50 $50,250 1,248,865 Direct +0.12% Acquired -17.5% (price as of 2026-08-20)
Feb. 10, 2020 CLFD P 400 $11.62 $4,648 1,241,599 Direct +0.03% Acquired 137.9% (price as of 2026-08-20)
Feb. 10, 2020 CLFD P 600 $11.63 $6,978 1,242,199 Direct +0.05% Acquired 137.7% (price as of 2026-08-20)
Feb. 10, 2020 CLFD P 600 $11.64 $6,984 1,242,799 Direct +0.05% Acquired 137.4% (price as of 2026-08-20)
Feb. 10, 2020 CLFD P 700 $11.68 $8,176 1,243,499 Direct +0.06% Acquired 136.6% (price as of 2026-08-20)
Feb. 10, 2020 CLFD P 200 $11.72 $2,344 1,246,199 Direct +0.02% Acquired 135.8% (price as of 2026-08-20)
Feb. 10, 2020 CLFD P 1,800 $11.72 $21,096 1,245,999 Direct +0.14% Acquired 135.8% (price as of 2026-08-20)
Feb. 10, 2020 CLFD P 529 $11.70 $6,189 1,244,199 Direct +0.04% Acquired 136.2% (price as of 2026-08-20)
Feb. 10, 2020 CLFD P 171 $11.69 $1,999 1,243,670 Direct +0.01% Acquired 136.4% (price as of 2026-08-20)
Nov. 14, 2019 CLFD P 4,900 $12.45 $61,005 1,241,199 Direct +0.40% Acquired 122.0% (price as of 2026-08-20)
Nov. 14, 2019 CLFD P 100 $12.40 $1,240 1,236,299 Direct +0.01% Acquired 122.9% (price as of 2026-08-20)
Nov. 13, 2019 CLFD P 2,500 $12.40 $31,000 1,236,199 Direct +0.20% Acquired 122.9% (price as of 2026-08-20)
Nov. 13, 2019 CLFD P 2,500 $12.44 $31,100 1,233,699 Direct +0.20% Acquired 122.2% (price as of 2026-08-20)
May 4, 2018 CLFD P 1,935 $12.25 $23,704 1,330,331 Direct +0.15% Acquired 125.6% (price as of 2026-08-20)
May 3, 2018 CLFD P 2,654 $12.19 $32,352 1,228,396 Direct +0.22% Acquired 126.7% (price as of 2026-08-20)
May 2, 2018 CLFD P 411 $12.10 $4,973 1,225,742 Direct +0.03% Acquired 128.4% (price as of 2026-08-20)
Aug. 1, 2017 CLFD P 5,000 $11.45 $57,250 1,224,484 Direct +0.41% Acquired 141.4% (price as of 2026-08-20)
May 12, 2017 CLFD P 4,686 $14.15 $66,307 1,219,484 Direct +0.39% Acquired 95.3% (price as of 2026-08-20)
May 11, 2017 CLFD P 314 $14.05 $4,412 1,219,170 Direct +0.03% Acquired 96.7% (price as of 2026-08-20)
Jan. 31, 2017 CLFD P 5,000 $17.50 $87,500 1,213,725 Direct +0.41% Acquired 57.9% (price as of 2026-08-20)
Aug. 16, 2016 CLFD P 5,000 $17.97 $89,850 1,208,725 Direct +0.42% Acquired 53.8% (price as of 2026-08-20)
May 13, 2016 CLFD P 5,000 $17.60 $88,000 1,203,725 Direct +0.42% Acquired 57.0% (price as of 2026-08-20)
Feb. 5, 2016 CLFD P 5,000 $13.56 $67,800 1,198,047 Direct +0.42% Acquired 103.8% (price as of 2026-08-20)
Nov. 30, 2015 CLFD P 5,000 $13.63 $68,150 1,193,047 Direct +0.42% Acquired 102.8% (price as of 2026-08-20)
Nov. 25, 2015 CLFD P 5,000 $13.57 $67,850 1,188,047 Direct +0.42% Acquired 103.7% (price as of 2026-08-20)
Aug. 20, 2015 CLFD P 5,000 $17.23 $86,150 1,183,047 Direct +0.42% Acquired 60.4% (price as of 2026-08-20)
Aug. 4, 2015 CLFD P 5,000 $19.24 $96,200 1,178,047 Direct +0.43% Acquired 43.7% (price as of 2026-08-20)
April 30, 2015 CLFD P 5,000 $13.25 $66,250 1,173,047 Direct +0.43% Acquired 108.6% (price as of 2026-08-20)
April 29, 2015 CLFD P 15,000 $14.11 $211,650 1,168,047 Direct +1.30% Acquired 95.9% (price as of 2026-08-20)
Feb. 18, 2015 CLFD P 3,500 $13.25 $46,375 1,152,306 Direct +0.30% Acquired 108.6% (price as of 2026-08-20)
Nov. 28, 2014 CLFD P 5,000 $13.30 $66,500 1,148,806 Direct +0.44% Acquired 107.8% (price as of 2026-08-20)
July 31, 2014 CLFD P 10,000 $12.88 $128,800 1,143,806 Direct +0.88% Acquired 114.6% (price as of 2026-08-20)
May 7, 2014 CLFD P 5,000 $14.44 $72,200 1,133,806 Direct +0.44% Acquired 91.4% (price as of 2026-08-20)
April 29, 2014 CLFD P 15,000 $14.89 $223,350 1,128,806 Direct +1.35% Acquired 85.6% (price as of 2026-08-20)
Feb. 27, 2014 CLFD P 5,000 $23.36 $116,800 1,108,906 Direct +0.45% Acquired 18.3% (price as of 2026-08-20)
Feb. 10, 2014 CLFD P 5,000 $21.82 $109,100 1,103,523 Direct +0.46% Acquired 26.7% (price as of 2026-08-20)
Nov. 29, 2013 CLFD P 5,000 $17.76 $88,800 1,098,523 Direct +0.46% Acquired 55.6% (price as of 2026-08-20)
Nov. 27, 2013 CLFD P 5,000 $17.45 $87,250 1,093,523 Direct +0.46% Acquired 58.4% (price as of 2026-08-20)
Aug. 22, 2013 CLFD P 265 $11.40 $3,021 1,084,788 Direct +0.02% Acquired 142.4% (price as of 2026-08-20)
Aug. 22, 2013 CLFD P 273 $11.42 $3,118 1,085,061 Direct +0.03% Acquired 142.0% (price as of 2026-08-20)
Aug. 22, 2013 CLFD P 200 $11.44 $2,288 1,085,261 Direct +0.02% Acquired 141.6% (price as of 2026-08-20)
Aug. 22, 2013 CLFD P 3,262 $11.45 $37,350 1,088,523 Direct +0.30% Acquired 141.4% (price as of 2026-08-20)
Aug. 21, 2013 CLFD P 3,000 $11.24 $33,720 1,081,523 Direct +0.28% Acquired 145.9% (price as of 2026-08-20)
Aug. 21, 2013 CLFD P 3,000 $11.26 $33,780 1,084,523 Direct +0.28% Acquired 145.5% (price as of 2026-08-20)
July 31, 2013 CLFD P 2,191 $11.02 $24,145 1,078,523 Direct +0.20% Acquired 150.8% (price as of 2026-08-20)
July 31, 2013 CLFD P 450 $11.03 $4,964 1,076,332 Direct +0.04% Acquired 150.6% (price as of 2026-08-20)
July 31, 2013 CLFD P 1,100 $10.90 $11,990 1,075,882 Direct +0.10% Acquired 153.6% (price as of 2026-08-20)
July 31, 2013 CLFD P 150 $10.89 $1,634 1,074,782 Direct +0.01% Acquired 153.8% (price as of 2026-08-20)
July 31, 2013 CLFD P 300 $10.89 $3,267 1,074,632 Direct +0.03% Acquired 153.8% (price as of 2026-08-20)
July 31, 2013 CLFD P 300 $10.85 $3,255 1,074,332 Direct +0.03% Acquired 154.7% (price as of 2026-08-20)
July 31, 2013 CLFD P 509 $10.66 $5,426 1,074,032 Direct +0.05% Acquired 159.3% (price as of 2026-08-20)
July 30, 2013 CLFD P 2,336 $10.95 $25,579 1,073,523 Direct +0.22% Acquired 152.4% (price as of 2026-08-20)
July 30, 2013 CLFD P 2,564 $10.90 $27,948 1,071,187 Direct +0.24% Acquired 153.6% (price as of 2026-08-20)
July 30, 2013 CLFD P 100 $10.85 $1,085 1,068,623 Direct +0.01% Acquired 154.7% (price as of 2026-08-20)
May 1, 2013 CLFD P 600 $6.99 $4,194 1,068,523 Direct +0.06% Acquired 295.4% (price as of 2026-08-20)
April 30, 2013 CLFD P 3,700 $6.99 $25,863 1,067,923 Direct +0.35% Acquired 295.4% (price as of 2026-08-20)
April 30, 2013 CLFD P 1,800 $6.95 $12,510 1,064,223 Direct +0.17% Acquired 297.7% (price as of 2026-08-20)
April 30, 2013 CLFD P 2,200 $6.94 $15,268 1,062,423 Direct +0.21% Acquired 298.3% (price as of 2026-08-20)
April 30, 2013 CLFD P 300 $6.94 $2,082 1,060,223 Direct +0.03% Acquired 298.3% (price as of 2026-08-20)
April 30, 2013 CLFD P 900 $6.94 $6,246 1,059,923 Direct +0.08% Acquired 298.3% (price as of 2026-08-20)
April 30, 2013 CLFD P 100 $6.93 $693 1,059,023 Direct +0.01% Acquired 298.8% (price as of 2026-08-20)
April 30, 2013 CLFD P 100 $6.93 $693 1,058,923 Direct +0.01% Acquired 298.8% (price as of 2026-08-20)
April 30, 2013 CLFD P 100 $6.92 $692 1,058,823 Direct +0.01% Acquired 299.4% (price as of 2026-08-20)
April 30, 2013 CLFD P 200 $6.91 $1,382 1,058,723 Direct +0.02% Acquired 300.0% (price as of 2026-08-20)
Nov. 15, 2012 CLFD P 5,000 $4.20 $21,000 1,056,705 Direct +0.48% Acquired 558.1% (price as of 2026-08-20)
Nov. 15, 2012 CLFD P 4,900 $4.18 $20,482 1,051,705 Direct +0.47% Acquired 561.2% (price as of 2026-08-20)
Nov. 15, 2012 CLFD P 100 $4.10 $410 1,046,805 Direct +0.01% Acquired 574.1% (price as of 2026-08-20)
Nov. 15, 2012 CLFD P 1,588 $4.35 $6,908 1,046,705 Direct +0.15% Acquired 535.4% (price as of 2026-08-20)
Nov. 14, 2012 CLFD P 2,900 $4.33 $12,557 1,045,117 Direct +0.28% Acquired 538.3% (price as of 2026-08-20)
Nov. 14, 2012 CLFD P 5,512 $4.35 $23,977 1,042,217 Direct +0.53% Acquired 535.4% (price as of 2026-08-20)
Aug. 31, 2012 CLFD P 825 $5.20 $4,290 1,036,705 Direct +0.08% Acquired 431.5% (price as of 2026-08-20)
Aug. 31, 2012 CLFD P 875 $5.19 $4,541 1,035,880 Direct +0.08% Acquired 432.5% (price as of 2026-08-20)
Aug. 31, 2012 CLFD P 1,400 $5.17 $7,238 1,035,005 Direct +0.14% Acquired 434.6% (price as of 2026-08-20)
Aug. 31, 2012 CLFD P 100 $5.16 $516 1,033,605 Direct +0.01% Acquired 435.6% (price as of 2026-08-20)
Aug. 31, 2012 CLFD P 300 $5.15 $1,545 1,033,505 Direct +0.03% Acquired 436.7% (price as of 2026-08-20)
Aug. 31, 2012 CLFD P 400 $5.12 $2,048 1,033,205 Direct +0.04% Acquired 439.8% (price as of 2026-08-20)

Showing latest 100 of 323 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
April 25, 2014 CLFD Director Non-qualified Stock Option (Right to Buy) Common Stock (2,400) $5.91 Feb. 24, 2018 2,400 Disposed
April 25, 2014 CLFD Director Non-qualified Stock Option (Right to Buy) Common Stock (2,500) $5.34 Feb. 25, 2017 2,500 Disposed
Feb. 24, 2012 CLFD Option to Purchase Common Stock Common Stock (2,400) $5.91 Feb. 21, 2018 2,400 Acquired
Sept. 29, 2011 CLFD Employee Stock Option (Right to Buy) Common Stock (2,500) $1.03 Aug. 24, 2012 2,500 Disposed
Sept. 29, 2011 CLFD Employee Stock Option (Right to Buy) Common Stock (5,000) $0.96 Aug. 28, 2014 5,000 Disposed
Sept. 29, 2011 CLFD Employee Stock Option (Right to Buy) Common Stock (7,500) $1.16 Feb. 27, 2015 7,500 Disposed
Sept. 29, 2011 CLFD Employee Stock Option (Right to Buy) Common Stock (1,000) $2.87 Feb. 26, 2016 1,000 Disposed
May 31, 2011 CLFD Employee Stock Option (Right to Buy) Common Stock (5,000) $1.28 Aug. 18, 2011 5,000 Disposed
Feb. 25, 2011 CLFD Option to Purchase Common Stock Common Stock (2,500) $5.34 Feb. 25, 2017 2,500 Acquired
Aug. 6, 2010 CLFD STOCK OPTION COMMON STOCK (5,000) $1.41 Aug. 19, 2010 5,000 Disposed
Aug. 6, 2010 CLFD STOCK OPTION COMMON STOCK (5,000) $1.41 Aug. 19, 2010 5,000 Disposed
Aug. 6, 2010 CLFD STOCK OPTON COMMON STOCK (5,000) $1.41 Aug. 19, 2010 5,000 Disposed
Feb. 26, 2010 CLFD OPTION TO PURCHASE COMMON STOCK COMMON SHARES (1,000) $2.87 Feb. 26, 2016 1,000 Acquired
Feb. 27, 2009 CLFD COMMON STOCK - OPTIONS COMMON STOCK (7,500) $1.16 Feb. 27, 2015 7,500 Acquired
Feb. 28, 2008 CLFD DIRECTOR COMMON STOCK COMMON STOCK (5,000) $0.96 Feb. 28, 2014 5,000 Acquired
Aug. 24, 2007 CLFD DIRECTOR STOCK OPTION COMMON STOCK (2,500) $1.03 Aug. 24, 2012 2,500 Acquired
Aug. 18, 2006 CLFD Director Stock Options Common Stock (5,000) $1.28 Aug. 18, 2011 5,000 Acquired
Aug. 19, 2005 CLFD Director Stock Options Common Stock (5,000) $1.41 Aug. 19, 2010 5,000 Acquired
Aug. 20, 2004 CLFD Director Stock Option Common Stock (5,000) $1.61 Aug. 19, 2009 5,000 Acquired
Aug. 22, 2003 CLFD Director Stock Option Common Stock (5,000) $2.91 Aug. 22, 2008 5,000 Acquired

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