William J.G. Griffith

CIK 1688124 · View on SEC EDGAR ↗

Insider

First SEC filing: Feb. 16, 2021 · Latest: June 8, 2026

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Insider at

Insider transactions

7 buys (P) 7 sells (S) Net: $27,978,635 + 86 non-open-market transactions below Avg return of open purchases vs now: -5.9% 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

86 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
July 13, 2026 NTSK P 64,771 $12.42 $804,456 916,690 Indirect +7.60% Acquired 16.0% (price as of 2026-08-20)
July 10, 2026 NTSK P 241,628 $12.26 $2,962,359 851,919 Indirect +39.59% Acquired 17.5% (price as of 2026-08-20)
July 8, 2026 NTSK P 610,291 $11.82 $7,213,640 610,291 Indirect — Acquired 21.9% (price as of 2026-08-20)
June 23, 2026 TTAN S 791 $64.18 $50,766 594,405 Indirect -0.13% Disposed 49.3% (price as of 2026-08-20)
June 23, 2026 TTAN S 590 $64.18 $37,866 443,221 Indirect -0.13% Disposed 49.3% (price as of 2026-08-20)
June 23, 2026 TTAN S 53,295 $63.42 $3,379,969 595,196 Indirect -8.22% Disposed 51.1% (price as of 2026-08-20)
June 23, 2026 TTAN S 39,739 $63.42 $2,520,247 443,811 Indirect -8.22% Disposed 51.1% (price as of 2026-08-20)
June 22, 2026 TTAN S 115 $63.01 $7,246 648,491 Indirect -0.02% Disposed 52.1% (price as of 2026-08-20)
June 22, 2026 TTAN S 85 $63.01 $5,356 483,550 Indirect -0.02% Disposed 52.1% (price as of 2026-08-20)
Dec. 15, 2025 PCOR S 207,474 $72.30 $15,000,370 3,244,546 Direct -6.01% Disposed -13.3% (price as of 2026-08-20)
Sept. 19, 2025 NTSK P 877,906 $19.00 $16,680,214 877,906 Indirect — Acquired -24.2% (price as of 2026-08-20)
Sept. 19, 2025 NTSK P 595,778 $19.00 $11,319,782 595,778 Indirect — Acquired -24.2% (price as of 2026-08-20)
Sept. 19, 2025 NTSK P 231,097 $19.00 $4,390,843 8,797,227 Indirect +2.70% Acquired -24.2% (price as of 2026-08-20)
Sept. 19, 2025 NTSK P 295,219 $19.00 $5,609,161 11,238,175 Indirect +2.70% Acquired -24.2% (price as of 2026-08-20)

Showing latest 100 of 354 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
July 8, 2026 NTSK Restricted Stock Units Class A Common Stock (16,778) — — 16,778 Acquired
March 13, 2026 NTSK Class B Common Stock Class A Common Stock (350,907) — — 350,907 Disposed
March 13, 2026 NTSK Class B Common Stock Class A Common Stock (1,511,670) — — 1,511,670 Disposed
March 13, 2026 NTSK Class B Common Stock Class A Common Stock (1,931,110) — — 1,931,110 Disposed
March 13, 2026 NTSK Class B Common Stock Class A Common Stock (18,872,434) — — 18,872,434 Disposed
March 13, 2026 NTSK Class B Common Stock Class A Common Stock (11,976,293) — — 11,976,293 Disposed
March 13, 2026 NTSK Class B Common Stock Class A Common Stock (8,127,540) — — 8,127,540 Disposed
Sept. 19, 2025 NTSK Class B Common Stock Class A Common Stock (1,988,473) — — 1,988,473 Disposed
Sept. 19, 2025 NTSK Class B Common Stock Class A Common Stock (8,566,130) — — 8,566,130 Disposed
Sept. 19, 2025 NTSK Class B Common Stock Class A Common Stock (10,942,956) — — 10,942,956 Disposed
Sept. 19, 2025 NTSK Class B Common Stock Class A Common Stock (2,339,380) — — 2,339,380 Acquired
Sept. 19, 2025 NTSK Class B Common Stock Class A Common Stock (10,077,800) — — 10,077,800 Acquired
Sept. 19, 2025 NTSK Class B Common Stock Class A Common Stock (12,874,066) — — 12,874,066 Acquired
Sept. 19, 2025 NTSK Class B Common Stock Class A Common Stock (18,872,434) — — 18,872,434 Acquired
Sept. 19, 2025 NTSK Class B Common Stock Class A Common Stock (11,976,293) — — 11,976,293 Acquired
Sept. 19, 2025 NTSK Class B Common Stock Class A Common Stock (8,127,540) — — 8,127,540 Acquired
Sept. 18, 2025 NTSK Series G Convertible Preferred Stock Common Stock [F2] (262,291) — — 262,291 Disposed
Sept. 18, 2025 NTSK Series G Convertible Preferred Stock Common Stock [F2] (335,060) — — 335,060 Disposed
Sept. 18, 2025 NTSK Series G Convertible Preferred Stock Common Stock [F2] (14,590) — — 14,590 Disposed
Sept. 18, 2025 NTSK Series G Convertible Preferred Stock Common Stock [F2] (5,543) — — 5,543 Disposed
Sept. 18, 2025 NTSK Series G Convertible Preferred Stock Common Stock [F2] (3,761) — — 3,761 Disposed
Sept. 18, 2025 NTSK Series F Convertible Preferred Stock Common Stock [F2] (2,339,380) — — 2,339,380 Disposed
Sept. 18, 2025 NTSK Series F Convertible Preferred Stock Common Stock [F2] (161,259) — — 161,259 Disposed
Sept. 18, 2025 NTSK Series F Convertible Preferred Stock Common Stock [F2] (206,003) — — 206,003 Disposed
Sept. 18, 2025 NTSK Series F Convertible Preferred Stock Common Stock [F2] (112,129) — — 112,129 Disposed
Sept. 18, 2025 NTSK Series F Convertible Preferred Stock Common Stock [F2] (42,595) — — 42,595 Disposed
Sept. 18, 2025 NTSK Series F Convertible Preferred Stock Common Stock [F2] (28,907) — — 28,907 Disposed
Sept. 18, 2025 NTSK Series E Convertible Preferred Stock Common Stock [F2] (1,828,453) — — 1,828,453 Disposed
Sept. 18, 2025 NTSK Series E Convertible Preferred Stock Common Stock [F2] (2,335,792) — — 2,335,792 Disposed
Sept. 18, 2025 NTSK Series E Convertible Preferred Stock Common Stock [F2] (1,270,054) — — 1,270,054 Disposed
Sept. 18, 2025 NTSK Series E Convertible Preferred Stock Common Stock [F2] (482,470) — — 482,470 Disposed
Sept. 18, 2025 NTSK Series E Convertible Preferred Stock Common Stock [F2] (327,422) — — 327,422 Disposed
Sept. 18, 2025 NTSK Series D Convertible Preferred Stock Common Stock [F2] (7,825,797) — — 7,825,797 Disposed
Sept. 18, 2025 NTSK Series D Convertible Preferred Stock Common Stock [F2] (9,997,211) — — 9,997,211 Disposed
Sept. 18, 2025 NTSK Series D Convertible Preferred Stock Common Stock [F2] (2,720,766) — — 2,720,766 Disposed
Sept. 18, 2025 NTSK Series D Convertible Preferred Stock Common Stock [F2] (1,033,569) — — 1,033,569 Disposed
Sept. 18, 2025 NTSK Series D Convertible Preferred Stock Common Stock [F2] (701,417) — — 701,417 Disposed
Sept. 18, 2025 NTSK Series C Convertible Preferred Stock Common Stock [F2] (3,164,351) — — 3,164,351 Disposed
Sept. 18, 2025 NTSK Series C Convertible Preferred Stock Common Stock [F2] (1,202,080) — — 1,202,080 Disposed
Sept. 18, 2025 NTSK Series C Convertible Preferred Stock Common Stock [F2] (815,775) — — 815,775 Disposed
Sept. 18, 2025 NTSK Series B Convertible Preferred Stock Common Stock [F2] (3,153,875) — — 3,153,875 Disposed
Sept. 18, 2025 NTSK Series B Convertible Preferred Stock Common Stock [F2] (1,198,100) — — 1,198,100 Disposed
Sept. 18, 2025 NTSK Series B Convertible Preferred Stock Common Stock [F2] (813,073) — — 813,073 Disposed
Sept. 18, 2025 NTSK Series A Convertible Preferred Stock Common Stock [F2] (8,436,669) — — 8,436,669 Disposed
Sept. 18, 2025 NTSK Series A Convertible Preferred Stock Common Stock [F2] (3,204,938) — — 3,204,938 Disposed
Sept. 18, 2025 NTSK Series A Convertible Preferred Stock Common Stock [F2] (2,174,985) — — 2,174,985 Disposed
Sept. 18, 2025 NTSK Series H Convertible Preferred Stock Common Stock [F2] (4,806,998) — — 4,806,998 Disposed
Sept. 18, 2025 NTSK Series H Convertible Preferred Stock Common Stock [F2] (3,262,200) — — 3,262,200 Disposed
Dec. 13, 2024 TTAN Series H-1 Preferred Stock Class A Common Stock [F1] — — 27,094 Disposed
Dec. 13, 2024 TTAN Series G Preferred Stock Class A Common Stock [F1] — — 60,192 Disposed
Dec. 13, 2024 TTAN Series F Preferred Stock Class A Common Stock [F1] — — 160,128 Disposed
Dec. 13, 2024 TTAN Series A-1 Preferred Stock Class A Common Stock [F1] (194,923) — — 194,923 Disposed
Dec. 13, 2024 TTAN Series H-1 Preferred Stock Class A Common Stock [F1] — — 20,202 Disposed
Dec. 13, 2024 TTAN Series G Preferred Stock Class A Common Stock [F1] — — 44,883 Disposed
Dec. 13, 2024 TTAN Series F Preferred Stock Class A Common Stock [F1] — — 119,400 Disposed
Dec. 13, 2024 TTAN Series A-1 Preferred Stock Class A Common Stock [F1] (145,345) — — 145,345 Disposed
Dec. 13, 2024 TTAN Series G Preferred Stock Class A Common Stock [F1] — — 105,076 Disposed
Dec. 13, 2024 TTAN Series F Preferred Stock Class A Common Stock [F1] — — 139,764 Disposed
Dec. 13, 2024 TTAN Series E Preferred Stock Class A Common Stock [F1] (230,936) — — 230,936 Disposed
Dec. 13, 2024 TTAN Series D Preferred Stock Class A Common Stock [F1] (674,258) — — 674,258 Disposed
Dec. 13, 2024 TTAN Series A-1 Preferred Stock Class A Common Stock [F1] (1,376) — — 1,376 Disposed
Dec. 13, 2024 TTAN Series E Preferred Stock Class A Common Stock [F1] (216,130) — — 216,130 Disposed
Dec. 13, 2024 TTAN Series D Preferred Stock Class A Common Stock [F1] (631,025) — — 631,025 Disposed
Dec. 13, 2024 TTAN Series A-1 Preferred Stock Class A Common Stock [F1] (1,287) — — 1,287 Disposed
Dec. 13, 2024 TTAN Series D Preferred Stock Class A Common Stock [F1] (220,117) — — 220,117 Disposed
Dec. 13, 2024 TTAN Series C Preferred Stock Class A Common Stock [F1] (45,431) — — 45,431 Disposed
Dec. 13, 2024 TTAN Series B Preferred Stock Class A Common Stock [F1] (2,028,510) — — 2,028,510 Disposed
Dec. 13, 2024 TTAN Series A-1 Preferred Stock Class A Common Stock [F1] (606,144) — — 606,144 Disposed
Dec. 13, 2024 TTAN Series D Preferred Stock Class A Common Stock [F1] (281,192) — — 281,192 Disposed
Dec. 13, 2024 TTAN Series C Preferred Stock Class A Common Stock [F1] (58,037) — — 58,037 Disposed
Dec. 13, 2024 TTAN Series B Preferred Stock Class A Common Stock [F1] (2,591,188) — — 2,591,188 Disposed
Dec. 13, 2024 TTAN Series A-1 Preferred Stock Class A Common Stock [F1] (774,277) — — 774,277 Disposed
Dec. 13, 2024 TTAN Series C Preferred Stock Class A Common Stock [F1] (645,005) — — 645,005 Disposed
Dec. 13, 2024 TTAN Series B Preferred Stock Class A Common Stock [F1] (1,154,925) — — 1,154,925 Disposed
Dec. 13, 2024 TTAN Series A-1 Preferred Stock Class A Common Stock [F1] (344,853) — — 344,853 Disposed
May 24, 2021 PCOR Series I Preferred Stock Common Stock (929,608) — — 929,608 Disposed
May 24, 2021 PCOR Series I Preferred Stock Common Stock (326,094) — — 326,094 Disposed
May 24, 2021 PCOR Series I Preferred Stock Common Stock (196,810) — — 196,810 Disposed
May 24, 2021 PCOR Series H-1 Preferred Stock Common Stock (145,336) — — 145,336 Disposed
May 24, 2021 PCOR Series H-1 Preferred Stock Common Stock (87,716) — — 87,716 Disposed
May 24, 2021 PCOR Series G Preferred Stock Common Stock (2,219,142) — — 2,219,142 Disposed
May 24, 2021 PCOR Series G Preferred Stock Common Stock (2,076,849) — — 2,076,849 Disposed
May 24, 2021 PCOR Series G Preferred Stock Common Stock (471,577) — — 471,577 Disposed
May 24, 2021 PCOR Series G Preferred Stock Common Stock (602,424) — — 602,424 Disposed
May 24, 2021 PCOR Series F Preferred Stock Common Stock (4,769,769) — — 4,769,769 Disposed
May 24, 2021 PCOR Series F Preferred Stock Common Stock (4,370,392) — — 4,370,392 Disposed
May 24, 2021 PCOR Series F Preferred Stock Common Stock (5,583,040) — — 5,583,040 Disposed
May 24, 2021 PCOR Series E Preferred Stock Common Stock (4,402,992) — — 4,402,992 Disposed
May 24, 2021 PCOR Series E Preferred Stock Common Stock (5,624,684) — — 5,624,684 Disposed
May 24, 2021 PCOR Series D Preferred Stock Common Stock (114,186) — — 114,186 Disposed
May 24, 2021 PCOR Series D Preferred Stock Common Stock (145,868) — — 145,868 Disposed
May 24, 2021 PCOR Series C Preferred Stock Common Stock (61,519) — — 61,519 Disposed
May 24, 2021 PCOR Series C Preferred Stock Common Stock (190,563) — — 190,563 Disposed
May 24, 2021 PCOR Series C Preferred Stock Common Stock (178,343) — — 178,343 Disposed
May 24, 2021 PCOR Series C Preferred Stock Common Stock (9,043) — — 9,043 Disposed
May 24, 2021 PCOR Series C Preferred Stock Common Stock (11,552) — — 11,552 Disposed
May 24, 2021 PCOR Series B Preferred Stock Common Stock (1,634,234) — — 1,634,234 Disposed
May 24, 2021 PCOR Series B Preferred Stock Common Stock (2,362,440) — — 2,362,440 Disposed
May 24, 2021 PCOR Series B Preferred Stock Common Stock (2,210,959) — — 2,210,959 Disposed
May 24, 2021 PCOR Series B Preferred Stock Common Stock (704,557) — — 704,557 Disposed

Showing latest 100 of 104 transactions

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

Initial ownership (Form 3) 105 holdings

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

Date Ticker Security Shares Ownership
Sept. 17, 2025 NTSK Series A Convertible Preferred Stock→ Class B Common Stock [F2] (2,174,985) 2,174,985 Indirect
Sept. 17, 2025 NTSK Series A Convertible Preferred Stock→ Class B Common Stock [F2] (3,204,938) 3,204,938 Indirect
Sept. 17, 2025 NTSK Series A Convertible Preferred Stock→ Class B Common Stock [F2] (8,436,669) 8,436,669 Indirect
Sept. 17, 2025 NTSK Series B Convertible Preferred Stock→ Class B Common Stock [F2] (813,073) 813,073 Indirect
Sept. 17, 2025 NTSK Series B Convertible Preferred Stock→ Class B Common Stock [F2] (1,198,100) 1,198,100 Indirect
Sept. 17, 2025 NTSK Series B Convertible Preferred Stock→ Class B Common Stock [F2] (3,153,875) 3,153,875 Indirect
Sept. 17, 2025 NTSK Series C Convertible Preferred Stock→ Class B Common Stock [F2] (815,775) 815,775 Indirect
Sept. 17, 2025 NTSK Series C Convertible Preferred Stock→ Class B Common Stock [F2] (1,202,080) 1,202,080 Indirect
Sept. 17, 2025 NTSK Series C Convertible Preferred Stock→ Class B Common Stock [F2] (3,164,351) 3,164,351 Indirect
Sept. 17, 2025 NTSK Series D Convertible Preferred Stock→ Class B Common Stock [F2] (701,417) 701,417 Indirect
Sept. 17, 2025 NTSK Series D Convertible Preferred Stock→ Class B Common Stock [F2] (1,033,569) 1,033,569 Indirect
Sept. 17, 2025 NTSK Series D Convertible Preferred Stock→ Class B Common Stock [F2] (2,720,766) 2,720,766 Indirect
Sept. 17, 2025 NTSK Series D Convertible Preferred Stock→ Class B Common Stock [F2] (9,997,211) 9,997,211 Indirect
Sept. 17, 2025 NTSK Series D Convertible Preferred Stock→ Class B Common Stock [F2] (7,825,797) 7,825,797 Indirect
Sept. 17, 2025 NTSK Series E Convertible Preferred Stock→ Class B Common Stock [F2] (327,422) 327,422 Indirect
Sept. 17, 2025 NTSK Series E Convertible Preferred Stock→ Class B Common Stock [F2] (482,470) 482,470 Indirect
Sept. 17, 2025 NTSK Series E Convertible Preferred Stock→ Class B Common Stock [F2] (1,270,054) 1,270,054 Indirect
Sept. 17, 2025 NTSK Series E Convertible Preferred Stock→ Class B Common Stock [F2] (2,335,792) 2,335,792 Indirect
Sept. 17, 2025 NTSK Series E Convertible Preferred Stock→ Class B Common Stock [F2] (1,828,453) 1,828,453 Indirect
Sept. 17, 2025 NTSK Series F Convertible Preferred Stock→ Class B Common Stock [F2] (28,907) 28,907 Indirect
Sept. 17, 2025 NTSK Series F Convertible Preferred Stock→ Class B Common Stock [F2] (42,595) 42,595 Indirect
Sept. 17, 2025 NTSK Series F Convertible Preferred Stock→ Class B Common Stock [F2] (112,129) 112,129 Indirect
Sept. 17, 2025 NTSK Series F Convertible Preferred Stock→ Class B Common Stock [F2] (206,003) 206,003 Indirect
Sept. 17, 2025 NTSK Series F Convertible Preferred Stock→ Class B Common Stock [F2] (161,259) 161,259 Indirect
Sept. 17, 2025 NTSK Series F Convertible Preferred Stock→ Class B Common Stock [F2] (2,339,380) 2,339,380 Indirect
Sept. 17, 2025 NTSK Series G Convertible Preferred Stock→ Class B Common Stock [F2] (3,761) 3,761 Indirect
Sept. 17, 2025 NTSK Series G Convertible Preferred Stock→ Class B Common Stock [F2] (5,543) 5,543 Indirect
Sept. 17, 2025 NTSK Series G Convertible Preferred Stock→ Class B Common Stock [F2] (14,590) 14,590 Indirect
Sept. 17, 2025 NTSK Series G Convertible Preferred Stock→ Class B Common Stock [F2] (335,060) 335,060 Indirect
Sept. 17, 2025 NTSK Series G Convertible Preferred Stock→ Class B Common Stock [F2] (262,291) 262,291 Indirect
Sept. 17, 2025 NTSK Series H Convertible Preferred Stock→ Class B Common Stock [F2] (3,262,200) 3,262,200 Indirect
Sept. 17, 2025 NTSK Series H Convertible Preferred Stock→ Class B Common Stock [F2] (4,806,998) 4,806,998 Indirect
Dec. 11, 2024 TTAN Common Stock [F1] 599,982 Indirect
Dec. 11, 2024 TTAN Common Stock [F1] 212,137 Indirect
Dec. 11, 2024 TTAN Common Stock [F1] 1,392,914 Indirect
Dec. 11, 2024 TTAN Common Stock [F1] 1,090,436 Indirect
Dec. 11, 2024 TTAN Common Stock [F1] 62,180 Indirect
Dec. 11, 2024 TTAN Common Stock [F1] 66,436 Indirect
Dec. 11, 2024 TTAN Common Stock [F1] 100,000 Indirect
Dec. 11, 2024 TTAN Common Stock [F1] 183,056 Indirect
Dec. 11, 2024 TTAN Common Stock [F1] 245,497 Indirect
Dec. 11, 2024 TTAN Series A-1 Preferred Stock→ Common Stock [F1] (344,853) 344,853 Indirect
Dec. 11, 2024 TTAN Series A-1 Preferred Stock→ Common Stock [F1] (774,277) 774,277 Indirect
Dec. 11, 2024 TTAN Series A-1 Preferred Stock→ Common Stock [F1] (606,144) 606,144 Indirect
Dec. 11, 2024 TTAN Series A-1 Preferred Stock→ Common Stock [F1] (1,287) 1,287 Indirect
Dec. 11, 2024 TTAN Series A-1 Preferred Stock→ Common Stock [F1] (1,376) 1,376 Indirect
Dec. 11, 2024 TTAN Series A-1 Preferred Stock→ Common Stock [F1] (145,345) 145,345 Indirect
Dec. 11, 2024 TTAN Series A-1 Preferred Stock→ Common Stock [F1] (194,923) 194,923 Indirect
Dec. 11, 2024 TTAN Series B Preferred Stock→ Common Stock [F1] (1,154,925) 1,154,925 Indirect
Dec. 11, 2024 TTAN Series B Preferred Stock→ Common Stock [F1] (2,591,188) 2,591,188 Indirect