Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 53 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

No open-market trades on record; showing all filings.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Sept. 1, 2026 NTIC A 15,044 · · 15,044 Direct · Acquired (price as of 2026-10-02)
Sept. 1, 2025 NTIC A 16,287 · · 16,287 Direct · Acquired (price as of 2026-10-02)
Sept. 1, 2024 NTIC A 9,843 · · 9,843 Direct · Acquired (price as of 2026-10-02)
Sept. 1, 2023 NTIC A 9,921 · · 9,921 Direct · Acquired (price as of 2026-10-02)
Sept. 29, 2022 NTIC M 8,000 $6.70 $53,600 71,000 Direct +12.70% Acquired 14.9% (price as of 2026-10-02)
Sept. 29, 2022 NTIC M 8,000 $9.18 $73,440 79,000 Direct +11.27% Acquired -16.1% (price as of 2026-10-02)
Sept. 29, 2022 NTIC M 11,737 $10.80 $126,760 90,737 Direct +14.86% Acquired -28.7% (price as of 2026-10-02)
Sept. 29, 2022 NTIC M 16,026 $8.24 $132,054 106,763 Direct +17.66% Acquired -6.6% (price as of 2026-10-02)
Sept. 29, 2022 NTIC M 8,000 · · 0 Direct -100.00% Disposed (price as of 2026-10-02)
Sept. 29, 2022 NTIC M 8,000 · · 0 Direct -100.00% Disposed (price as of 2026-10-02)
Sept. 29, 2022 NTIC M 11,737 · · 0 Direct -100.00% Disposed (price as of 2026-10-02)
Sept. 29, 2022 NTIC M 16,026 · · 0 Direct -100.00% Disposed (price as of 2026-10-02)
Sept. 1, 2022 NTIC A 10,309 · · 10,309 Direct · Acquired (price as of 2026-10-02)
April 22, 2022 NTIC M 8,000 $7.42 $59,360 63,000 Direct +14.55% Acquired 3.8% (price as of 2026-10-02)
April 22, 2022 NTIC M 8,000 · · 0 Direct -100.00% Disposed (price as of 2026-10-02)
Nov. 12, 2021 NTIC M 8,000 $7.35 $58,800 47,000 Direct +20.51% Acquired 4.8% (price as of 2026-10-02)
Nov. 12, 2021 NTIC M 8,000 $10.05 $80,400 55,000 Direct +17.02% Acquired -23.4% (price as of 2026-10-02)
Nov. 12, 2021 NTIC M 8,000 · · 0 Direct -100.00% Disposed (price as of 2026-10-02)
Nov. 12, 2021 NTIC M 8,000 · · 0 Direct -100.00% Disposed (price as of 2026-10-02)
Sept. 1, 2021 NTIC A 6,859 · · 6,859 Direct · Acquired (price as of 2026-10-02)
Sept. 1, 2020 NTIC A 16,026 · · 16,026 Direct · Acquired (price as of 2026-10-02)
Sept. 1, 2019 NTIC A 11,737 · · 11,737 Direct · Acquired (price as of 2026-10-02)
Sept. 1, 2018 NTIC A 2,773 · · 2,773 Direct · Acquired (price as of 2026-10-02)
Sept. 1, 2017 NTIC A 4,000 · · 4,000 Direct · Acquired (price as of 2026-10-02)
Aug. 31, 2017 NTIC M 4,000 $10.25 $41,000 19,500 Direct +25.81% Acquired 50.2% (price as of 2026-10-02)
Aug. 31, 2017 NTIC M 4,000 $10.25 $41,000 0 Direct -100.00% Disposed 50.2% (price as of 2026-10-02)
Sept. 1, 2016 NTIC A 4,000 · · 4,000 Direct · Acquired (price as of 2026-10-02)
Sept. 1, 2015 NTIC A 4,000 · · 4,000 Direct · Acquired (price as of 2026-10-02)
Aug. 17, 2015 NTIC M 4,000 $9.76 $39,040 15,500 Direct +34.78% Acquired 57.8% (price as of 2026-10-02)
Aug. 17, 2015 NTIC M 4,000 $9.76 $39,040 0 Direct -100.00% Disposed 57.8% (price as of 2026-10-02)
Sept. 1, 2014 NTIC A 4,000 · · 4,000 Direct · Acquired (price as of 2026-10-02)
Aug. 26, 2014 NTIC M 4,000 $8.57 $34,280 11,500 Direct +53.33% Acquired 79.7% (price as of 2026-10-02)
Aug. 26, 2014 NTIC M 4,000 $8.57 $34,280 0 Direct -100.00% Disposed 79.7% (price as of 2026-10-02)
Sept. 1, 2013 NTIC A 4,000 · · 4,000 Direct · Acquired (price as of 2026-10-02)
Sept. 1, 2012 NTIC A 4,000 · · 4,000 Direct · Acquired (price as of 2026-10-02)
Sept. 1, 2012 NTIC A 4,000 · · 4,000 Direct · Acquired (price as of 2026-10-02)
Aug. 31, 2012 NTIC M 2,000 $9.75 $19,500 7,500 Direct +36.36% Acquired 57.9% (price as of 2026-10-02)
Aug. 31, 2012 NTIC M 2,000 $9.75 $19,500 0 Direct -100.00% Disposed 57.9% (price as of 2026-10-02)
Aug. 31, 2012 NTIC M 2,000 $9.75 $19,500 7,500 Direct +36.36% Acquired 57.9% (price as of 2026-10-02)
Aug. 31, 2012 NTIC M 2,000 $9.75 $19,500 0 Direct -100.00% Disposed 57.9% (price as of 2026-10-02)
Sept. 1, 2011 NTIC A 4,000 · · 4,000 Direct · Acquired (price as of 2026-10-02)
Aug. 31, 2011 NTIC M 2,000 $8.01 $16,020 5,500 Direct +57.14% Acquired 92.3% (price as of 2026-10-02)
Aug. 31, 2011 NTIC M 2,000 $8.01 $16,020 0 Direct -100.00% Disposed 92.3% (price as of 2026-10-02)
Sept. 1, 2010 NTIC A 4,000 · · 4,000 Direct · Acquired (price as of 2026-10-02)
Aug. 30, 2010 NTIC M 2,000 $5.75 $11,500 3,500 Direct +133.33% Acquired 167.8% (price as of 2026-10-02)
Aug. 30, 2010 NTIC M 2,000 $5.75 $11,500 0 Direct -100.00% Disposed 167.8% (price as of 2026-10-02)
Oct. 23, 2009 NTIC M 1,500 $6.15 $9,225 1,500 Direct · Acquired 150.4% (price as of 2026-10-02)
Oct. 23, 2009 NTIC M 1,500 $6.15 $9,225 0 Direct -100.00% Disposed 150.4% (price as of 2026-10-02)
Sept. 1, 2009 NTIC A 4,000 · · 4,000 Direct · Acquired (price as of 2026-10-02)
Sept. 1, 2008 NTIC A 4,000 · · 4,000 Direct · Acquired (price as of 2026-10-02)
Sept. 1, 2007 NTIC A 2,000 $9.75 $19,500 2,000 Direct · Acquired 57.9% (price as of 2026-10-02)
Sept. 1, 2006 NTIC A 2,000 $8.07 $16,140 2,000 Direct · Acquired 90.8% (price as of 2026-10-02)
Sept. 1, 2005 NTIC A 2,000 $5.70 $11,400 0 Direct · Acquired 170.2% (price as of 2026-10-02)

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.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Sept. 1, 2026 NTIC Stock Option (right to buy) Common Stock (15,044) $8.08 Aug. 31, 2036 15,044 Acquired
Sept. 1, 2025 NTIC Stock Option (right to buy) Common Stock (16,287) $7.42 Aug. 31, 2035 16,287 Acquired
Sept. 1, 2024 NTIC Stock Option (right to buy) Common Stock (9,843) $13.26 Aug. 31, 2034 9,843 Acquired
Sept. 1, 2023 NTIC Stock Option (right to buy) Common Stock (9,921) $13.25 Aug. 31, 2033 9,921 Acquired
Sept. 29, 2022 NTIC Stock Option (right to buy) Common Stock (8,000) $6.70 Aug. 31, 2026 8,000 Disposed
Sept. 29, 2022 NTIC Stock Option (right to buy) Common Stock (8,000) $9.18 Aug. 31, 2027 8,000 Disposed
Sept. 29, 2022 NTIC Stock Option (right to buy) Common Stock (11,737) $10.80 Aug. 31, 2029 11,737 Disposed
Sept. 29, 2022 NTIC Stock Option (right to buy) Common Stock (16,026) $8.24 Aug. 31, 2030 16,026 Disposed
Sept. 1, 2022 NTIC Stock Option (right to buy) Common Stock (10,309) $11.38 Aug. 31, 2032 10,309 Acquired
April 22, 2022 NTIC Stock Option (right to buy) Common Stock (8,000) $7.42 Aug. 31, 2025 8,000 Disposed
Nov. 12, 2021 NTIC Stock Option (right to buy) Common Stock (8,000) $7.35 Aug. 31, 2023 8,000 Disposed
Nov. 12, 2021 NTIC Stock Option (right to buy) Common Stock (8,000) $10.05 Aug. 31, 2024 8,000 Disposed
Sept. 1, 2021 NTIC Stock Option (right to buy) Common Stock (6,859) $16.97 Aug. 31, 2031 6,859 Acquired
Sept. 1, 2020 NTIC Stock Option (right to buy) Common Stock (16,026) $8.24 Aug. 31, 2030 16,026 Acquired
Sept. 1, 2019 NTIC Stock Option (right to buy) Common Stock (11,737) $10.80 Aug. 31, 2029 11,737 Acquired
Sept. 1, 2018 NTIC Stock Option (right to buy) Common Stock (2,773) $36.45 Aug. 31, 2028 2,773 Acquired
Sept. 1, 2017 NTIC Stock Option (right to buy) Common Stock (4,000) $18.35 Aug. 31, 2027 4,000 Acquired
Aug. 31, 2017 NTIC Stock Option (right to buy) Common Stock (4,000) $10.25 Aug. 31, 2017 4,000 Disposed
Sept. 1, 2016 NTIC Stock Option (right to buy) Common Stock (4,000) $13.40 Aug. 31, 2026 4,000 Acquired
Sept. 1, 2015 NTIC Stock Option (right to buy) Common Stock (4,000) $14.85 Aug. 31, 2025 4,000 Acquired
Aug. 17, 2015 NTIC Stock Option (right to buy) Common Stock (4,000) $9.76 Aug. 31, 2015 4,000 Disposed
Sept. 1, 2014 NTIC Stock Option (right to buy) Common Stock (4,000) $20.10 Aug. 31, 2024 4,000 Acquired
Aug. 26, 2014 NTIC Stock Option (right to buy) Common Stock (4,000) $8.57 Aug. 31, 2014 4,000 Disposed
Sept. 1, 2013 NTIC Stock Option (right to buy) Common Stock (4,000) $14.70 Aug. 31, 2023 4,000 Acquired
Sept. 1, 2012 NTIC Stock Option (right to buy) Common Stock (4,000) $10.25 Aug. 31, 2017 4,000 Acquired
Sept. 1, 2012 NTIC Stock Option (right to buy) Common Stock (4,000) $10.25 Aug. 31, 2017 4,000 Acquired
Aug. 31, 2012 NTIC Stock Option (right to buy) Common Stock (2,000) $9.75 Aug. 31, 2012 2,000 Disposed
Aug. 31, 2012 NTIC Stock Option (right to buy) Common Stock (2,000) $9.75 Aug. 31, 2012 2,000 Disposed
Sept. 1, 2011 NTIC Stock Option (right to buy) Common Stock (4,000) $16.45 Aug. 31, 2016 4,000 Acquired
Aug. 31, 2011 NTIC Stock Option (right to buy) Common Stock (2,000) $8.01 Aug. 31, 2011 2,000 Disposed
Sept. 1, 2010 NTIC Stock Option (Right-to-Buy) Common Stock (4,000) $9.76 Aug. 31, 2015 4,000 Acquired
Aug. 30, 2010 NTIC Stock Option - Right to Buy Common Stock (2,000) $5.75 Aug. 31, 2010 2,000 Disposed
Oct. 23, 2009 NTIC Stock Option (right to buy) Common Stock (1,500) $6.15 Nov. 12, 2009 1,500 Disposed
Sept. 1, 2009 NTIC Stock Option (right to buy) Common Stock (4,000) $8.57 Aug. 31, 2014 4,000 Acquired
Sept. 1, 2008 NTIC Stock Option (Right to Buy) Common Stock (4,000) $12.84 Aug. 31, 2013 4,000 Acquired

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