Isaac Blech

CIK 905536 · View on SEC EDGAR ↗

Insider

First SEC filing: Aug. 30, 2016 · Latest: Aug. 30, 2016

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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

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

Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
March 15, 2019 PDSB M 10,000 — — 0 Direct -100.00% Disposed (price as of 2026-08-19)
March 15, 2019 PDSB M 10,000 — — 10,000 Direct — Acquired (price as of 2026-08-19)
March 15, 2019 PDSB M 10,000 — — 0 Direct -100.00% Disposed (price as of 2026-08-19)
March 15, 2019 PDSB M 10,000 — — 10,000 Direct — Acquired (price as of 2026-08-19)
March 13, 2019 XFOR A 6,854 — — 6,854 Direct — Acquired (price as of 2026-08-19)
March 13, 2019 XFOR A 70,796 — — 70,796 Direct — Acquired (price as of 2026-08-19)
Aug. 14, 2018 PDSB A 10,000 — — 10,000 Direct — Acquired (price as of 2026-08-19)
June 19, 2018 PDSB A 20,000 — — 20,000 Direct — Acquired (price as of 2026-08-19)
Dec. 31, 2017 AVTX A 8,267 — — 8,267 Direct — Acquired (price as of 2026-08-19)
June 20, 2017 PDSB A 15,000 $10.15 $152,250 15,000 Direct — Acquired -99.9% (price as of 2026-08-19)
Sept. 30, 2016 AVTX A 3,723 — — 3,723 Direct — Acquired (price as of 2026-08-19)
June 30, 2016 AVTX A 6,881 — — 6,881 Direct — Acquired (price as of 2026-08-19)
June 21, 2016 PDSB A 15,000 — — 15,000 Direct — Acquired (price as of 2026-08-19)
May 18, 2016 AVTX A 8,357 — — 8,357 Direct — Acquired (price as of 2026-08-19)
Nov. 9, 2015 AVTX A 16,714 — — 16,714 Direct — Acquired (price as of 2026-08-19)
Oct. 20, 2015 AVTX C 4,077,475 — — 0 Indirect -100.00% Disposed (price as of 2026-08-19)
Oct. 20, 2015 AVTX C 133,333 — — 0 Direct -100.00% Disposed (price as of 2026-08-19)
Oct. 20, 2015 AVTX C 182,030 — — 385,452 Indirect +89.48% Acquired (price as of 2026-08-19)
Oct. 20, 2015 AVTX C 5,952 — — 203,452 Direct +3.01% Acquired (price as of 2026-08-19)
July 24, 2014 CRVO A 87,449 — — 87,449 Direct — Acquired (price as of 2026-08-19)
Jan. 7, 2014 CRVO A 17,441 — — 17,441 Direct — Acquired (price as of 2026-08-19)

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
March 15, 2019 PDSB Restricted Stock Units Common Stock (10,000) — — 10,000 Disposed
March 15, 2019 PDSB Restricted Stock Units Common Stock (10,000) — — 10,000 Disposed
March 13, 2019 XFOR Stock Option (right to buy) Common Stock (6,854) $18.66 March 13, 2029 6,854 Acquired
March 13, 2019 XFOR Stock Option (right to buy) Common Stock (70,796) $6.84 Dec. 14, 2025 70,796 Acquired
Aug. 14, 2018 PDSB Restricted Stock Units Common Stock (10,000) — — 10,000 Acquired
June 19, 2018 PDSB Stock Option (Right To Purchase) Common Stock (20,000) $1.10 — 20,000 Acquired
Dec. 31, 2017 AVTX Employee Stock Option (Right to Buy) Common Stock (8,267) $3.20 Dec. 30, 2027 8,267 Acquired
June 20, 2017 PDSB Stock Option (right To Purchase) Common Stock (15,000) $10.15 June 20, 2027 15,000 Acquired
Sept. 30, 2016 AVTX Employee Stock Option (Right to Buy) Common Stock (3,723) $4.23 Sept. 29, 2026 3,723 Acquired
June 30, 2016 AVTX Employee Stock Option (Right to Buy) Common Stock (6,881) $2.20 June 29, 2026 6,881 Acquired
June 21, 2016 PDSB Stock Option (right To Purchase) Common Stock (15,000) $9.34 June 21, 2026 15,000 Acquired
May 18, 2016 AVTX Employee Stock Option (Right to Buy) Common Stock (8,357) $3.52 May 17, 2026 8,357 Acquired
Nov. 9, 2015 AVTX Employee Stock Option (Right to Buy) Common Stock (16,714) $5.80 Oct. 31, 2025 16,714 Acquired
Oct. 20, 2015 AVTX Series A Convertible Preferred Stock Common Stock (182,030) — — 4,077,475 Disposed
Oct. 20, 2015 AVTX Series A Convertible Preferred Stock Common Stock (5,952) — — 133,333 Disposed
July 24, 2014 CRVO Stock Option (right to buy) Common Stock (87,449) $3.92 July 24, 2024 87,449 Acquired
Jan. 7, 2014 CRVO Stock Option (right to buy) Common Stock (17,441) $3.00 Jan. 6, 2024 17,441 Acquired

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

Initial ownership (Form 3) 18 holdings

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

Date Ticker Security Shares Ownership
Aug. 30, 2016 CRVO Common Stock 28,334 Direct
Aug. 30, 2016 CRVO Common Stock 11,905 Indirect
Aug. 30, 2016 CRVO Common Stock 154,763 Indirect
Aug. 30, 2016 CRVO Stock Option (Right to Buy)→ Common Stock (1,745) 1,745 Direct
Aug. 30, 2016 CRVO Stock Option (Right to Buy)→ Common Stock (8,745) 8,745 Direct
Aug. 30, 2016 CRVO Warrant (Right to Buy)→ Common Stock (5,000) 5,000 Direct
Aug. 30, 2016 CRVO Warrant (Right to Buy)→ Common Stock (7,500) 7,500 Direct
Oct. 14, 2015 AVTX Common Stock 197,500 Direct
Oct. 14, 2015 AVTX Stock Option (Right to Buy)→ Common Stock (53,571) 53,571 Direct
Oct. 14, 2015 AVTX Stock Option (Right to Buy)→ Common Stock (10,714) 10,714 Direct
Oct. 14, 2015 AVTX Series A Convertible Preferred Stock→ Common Stock — Direct
Oct. 14, 2015 AVTX Series A Convertible Preferred Stock→ Common Stock — Indirect
Oct. 14, 2015 AVTX Warrant (Right to Buy)→ Common Stock (1,190) 1,190 Direct
Oct. 14, 2015 AVTX Warrant (Right to Buy)→ Common Stock (36,406) 36,406 Indirect
Sept. 30, 2015 PDSB Stock Option (right to purchase)→ Common Stock (730,940) 730,940 Direct
Sept. 30, 2015 PDSB Stock Option (right to purchase)→ Common Stock (11,695) 11,695 Direct
Sept. 30, 2015 PDSB Stock Option (right to purchase)→ Common Stock (4,385) 4,385 Direct
Sept. 30, 2015 PDSB Stock Option (right to purchase)→ Common Stock (21,928) 21,928 Direct