Joseph C. Cook III

CIK 1783205 · View on SEC EDGAR ↗

Insider

First SEC filing: July 24, 2019 · Latest: July 24, 2019

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Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 17 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

17 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
July 29, 2019 CSTL P 22,245 $16.00 $355,920 208,053 Direct +11.97% Acquired 103.3% (price as of 2026-08-21)
July 29, 2019 CSTL P 312,500 $16.00 $5,000,000 1,746,855 Indirect +21.79% Acquired 103.3% (price as of 2026-08-21)

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 29, 2019 CSTL Convertible Promissory Note Common Stock (97,428) — — — Disposed
July 29, 2019 CSTL Convertible Promissory Note Common Stock (16,722) — — — Disposed
July 29, 2019 CSTL Series F Preferred Stock Common Stock (416,537) — — 507,762 Disposed
July 29, 2019 CSTL Series F Preferred Stock Common Stock (47,495) — — 57,899 Disposed
July 29, 2019 CSTL Series E-3 Preferred Stock Common Stock (117,180) — — 142,843 Disposed
July 29, 2019 CSTL Series E-3 Preferred Stock Common Stock (3,840) — — 4,681 Disposed
July 29, 2019 CSTL Series E-2 Preferred Stock Common Stock (129,925) — — 158,379 Disposed
July 29, 2019 CSTL Series E-2 Preferred Stock Common Stock (4,479) — — 5,461 Disposed
July 29, 2019 CSTL Series E-1 Preferred Stock Common Stock (380,190) — — 463,453 Disposed
July 29, 2019 CSTL Series D Preferred Stock Common Stock (277,074) — — 337,754 Disposed
July 29, 2019 CSTL Series D Preferred Stock Common Stock (13,058) — — 15,918 Disposed
July 29, 2019 CSTL Series B Preferred Stock Common Stock (100,210) — — 122,158 Disposed
July 29, 2019 CSTL Series A Preferred Stock Common Stock (16,015) — — 19,524 Disposed

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

Initial ownership (Form 3) 14 holdings

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

Date Ticker Security Shares Ownership
July 24, 2019 CSTL Stock option (right to buy)→ Common Stock (30,895) 30,895 Direct
July 24, 2019 CSTL Series A Preferred Stock→ Common Stock (16,015) 16,015 Indirect
July 24, 2019 CSTL Series B Preferred Stock→ Common Stock (100,210) 100,210 Direct
July 24, 2019 CSTL Series D Preferred Stock→ Common Stock (13,058) 13,058 Direct
July 24, 2019 CSTL Series D Preferred Stock→ Common Stock (277,074) 277,074 Indirect
July 24, 2019 CSTL Series E-1 Preferred Stock→ Common Stock (380,190) 380,190 Indirect
July 24, 2019 CSTL Series E-2 Preferred Stock→ Common Stock (4,479) 4,479 Direct
July 24, 2019 CSTL Series E-2 Preferred Stock→ Common Stock (129,925) 129,925 Indirect
July 24, 2019 CSTL Series E-3 Preferred Stock→ Common Stock (3,840) 3,840 Direct
July 24, 2019 CSTL Series E-3 Preferred Stock→ Common Stock (117,180) 117,180 Indirect
July 24, 2019 CSTL Series F Preferred Stock→ Common Stock (47,495) 47,495 Direct
July 24, 2019 CSTL Series F Preferred Stock→ Common Stock (416,537) 416,537 Indirect
July 24, 2019 CSTL Convertible Promissory Note→ Common Stock — Direct
July 24, 2019 CSTL Convertible Promissory Note→ Common Stock — Indirect