David W. Truetzel

CIK 1593649 · View on SEC EDGAR ↗

Insider

First SEC filing: Feb. 12, 2014 · Latest: Feb. 12, 2014

On this page

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 21 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

21 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Dec. 9, 2015 SINT S 20,625 — — 354,570 Indirect -5.50% Disposed (price as of 2026-08-20)
Dec. 11, 2014 SINT S 15,000 $0.68 $10,200 96,689 Indirect -13.43% Disposed -100.0% (price as of 2026-08-20)
Nov. 21, 2014 SINT P 80,000 $0.01 $800 81,212 Indirect +6600.66% Acquired -100.0% (price as of 2026-08-20)
Nov. 21, 2014 SINT P 80,000 $1.13 $90,400 111,689 Indirect +252.45% Acquired -100.0% (price as of 2026-08-20)
Feb. 18, 2014 SINT P 5,000 $5.82 $29,100 8,297 Direct +151.65% Acquired -100.0% (price as of 2026-08-20)

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. 4, 2016 SINT Stock Options Common Stock (15,000) $0.11 Jan. 4, 2026 15,000 Acquired
Oct. 1, 2015 SINT Stock Option Common Stock (45,000) $0.31 Oct. 1, 2025 45,000 Acquired
July 1, 2015 SINT Stock Option Common Stock (90,000) $0.60 July 1, 2025 90,000 Acquired
May 21, 2015 SINT Warrant to Purchase Common Stcok Common Stock (80,000) — Nov. 26, 2019 80,000 Disposed
Jan. 8, 2015 SINT Stock Option Common Stock (45,000) $0.95 Oct. 1, 2024 45,000 Acquired
Jan. 8, 2015 SINT Stock Option Common Stock (6,395) $0.95 Sept. 18, 2024 6,395 Acquired
Jan. 8, 2015 SINT Stock Options Common Stock (45,000) $1.45 Oct. 1, 2024 45,000 Disposed
Jan. 8, 2015 SINT Stock Options Common Stock (6,395) $2.47 Sept. 18, 2024 6,395 Disposed
Jan. 7, 2015 SINT Stock Option Common Stock (45,000) $0.97 Jan. 7, 2025 45,000 Acquired
Jan. 7, 2015 SINT Stock Option Common Stock (15,000) $0.97 Jan. 7, 2025 15,000 Acquired
Nov. 21, 2014 SINT Warrant to Purchase Common Stock Common Stock (80,000) $1.48 Nov. 26, 2019 80,000 Acquired
Oct. 1, 2014 SINT Stock Option Common Stock (45,000) $1.45 Oct. 1, 2024 45,000 Acquired
Sept. 18, 2014 SINT Stock Option Common Stock (6,395) $2.47 Sept. 18, 2024 6,395 Acquired
Feb. 19, 2014 SINT Series F Preferred Stock Common Stock — — 62,500 Disposed
Feb. 19, 2014 SINT Series E Preferred Stock Common Stock — — 187,936 Disposed
Feb. 19, 2014 SINT Series E Preferred Stock Common Stock — — 7,660 Disposed
Feb. 19, 2014 SINT Series C Preferred Stock Common Stock — — 63,939 Disposed

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

Initial ownership (Form 3) 6 holdings

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

Date Ticker Security Shares Ownership
Feb. 12, 2014 SINT Common Stock 3,297 Direct
Feb. 12, 2014 SINT Warrant to Purchase Shares of Common Stock→ Common Stock (1,212) 1,212 Indirect
Feb. 12, 2014 SINT Series C Preferred Stock→ Common Stock — Indirect
Feb. 12, 2014 SINT Series E Preferred Stock→ Common Stock — Direct
Feb. 12, 2014 SINT Series E Preferred Stock→ Common Stock — Indirect
Feb. 12, 2014 SINT Series F Preferred Stock→ Common Stock — Indirect