Matthew Strobeck

CIK 1377832 · View on SEC EDGAR ↗

Insider

First SEC filing: June 2, 2026 · Latest: June 2, 2026

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Insider at

Insider transactions

1 buys (P) 0 sells (S) Net: $239,600 + 83 non-open-market transactions below Avg return of open purchases vs now: -41.5% 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

83 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Feb. 13, 2026 QDEL P 10,000 $23.96 $239,600 27,775 Direct +56.26% Acquired -41.5% (price as of 2026-08-19)
Nov. 5, 2024 BDSX P 36,000 $1.40 $50,400 2,606,879 Indirect +1.40% Acquired -16.5% (price as of 2026-08-19)
Nov. 5, 2024 BDSX P 4,000 $1.40 $5,600 89,673 Indirect +4.67% Acquired -16.5% (price as of 2026-08-19)
Nov. 21, 2022 BDSX P 1,365,217 $1.15 $1,570,000 2,135,076 Indirect +177.33% Acquired 1.7% (price as of 2026-08-19)
Nov. 21, 2022 BDSX P 108,695 $1.15 $124,999 112,213 Indirect +3089.68% Acquired 1.7% (price as of 2026-08-19)
Nov. 21, 2022 BDSX P 108,695 $1.15 $124,999 112,213 Indirect +3089.68% Acquired 1.7% (price as of 2026-08-19)
Nov. 21, 2022 BDSX P 108,695 $1.15 $124,999 112,213 Indirect +3089.68% Acquired 1.7% (price as of 2026-08-19)
Nov. 21, 2022 BDSX P 108,695 $1.15 $124,999 112,213 Indirect +3089.68% Acquired 1.7% (price as of 2026-08-19)
Nov. 21, 2022 BDSX P 869,565 $1.15 $1,000,000 2,415,151 Direct +56.26% Acquired 1.7% (price as of 2026-08-19)
Oct. 30, 2020 BDSX P 83,333 $18.00 $1,499,994 83,333 Indirect — Acquired -93.5% (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
May 29, 2026 QDEL Restricted Stock Units (Equity Grant) Common Stock (6,829) — — 6,829 Disposed
Jan. 2, 2026 BDSX Stock Options (Right to Buy) Common Stock (6,354) $6.46 Jan. 1, 2036 6,354 Acquired
Jan. 2, 2026 BDSX Restricted Stock Units Common Stock (6,804) — — 6,804 Acquired
May 20, 2025 BDSX Stock Options (Right to Buy) Common Stock (42,010) $0.27 May 19, 2035 42,010 Acquired
May 20, 2025 BDSX Restricted Stock Units Common Stock (80,525) — — 80,525 Acquired
May 24, 2024 QDEL Restricted Stock Units (Equity Grant) Common Stock (2,416) — — 2,416 Disposed
May 23, 2024 BDSX Series A Non-Voting Convertible Preferred Stock Common Stock (295,680) — — 7,392 Disposed
May 23, 2024 BDSX Series A Non-Voting Convertible Preferred Stock Common Stock (52,160) — — 1,304 Disposed
May 22, 2024 QDEL Restricted Stock Units (Equity Grant) Common Stock (4,929) — — 4,929 Acquired
May 21, 2024 BDSX Stock Options (Right to Buy) Common Stock (37,050) $1.57 May 20, 2034 37,050 Acquired
May 21, 2024 BDSX Restricted Stock Units Common Stock (53,726) — — 53,726 Acquired
April 5, 2024 BDSX Series A Non-Voting Convertible Preferred Stock Common Stock (295,680) — — 7,392 Acquired
April 5, 2024 BDSX Series A Non-Voting Convertible Preferred Stock Common Stock (52,160) — — 1,304 Acquired
Jan. 1, 2024 BDSX Restricted Stock Units Common Stock (105,389) — — 105,389 Acquired
June 6, 2023 QDEL Restricted Stock Units (Equity Grant) Common Stock (2,248) — — 2,248 Disposed
May 24, 2023 QDEL Restricted Stock Units (Equity Grant) Common Stock (2,416) — — 2,416 Acquired
May 23, 2023 BDSX Restricted Stock Units Common Stock — — 34,647 Acquired
May 18, 2023 QDEL Restricted Stock Units (Premium) Common Stock (85) — — 85 Disposed
May 18, 2023 QDEL Restricted Stock Units (Converted) Common Stock (427) — — 427 Disposed
May 14, 2023 QDEL Restricted Stock Units (Premium) Common Stock (262) — — 262 Disposed
May 14, 2023 QDEL Restricted Stock Units (Converted) Common Stock (875) — — 875 Disposed
Jan. 3, 2023 BDSX Restricted Stock Units Common Stock (6,097) — — 6,097 Acquired
Jan. 1, 2023 BDSX Restricted Stock Units Common Stock (62,500) — — 62,500 Acquired
June 6, 2022 QDEL Restricted Stock Units (Equity Grant) Common Stock (2,248) — — 2,248 Acquired
May 27, 2022 QDEL Restricted Stock Units Common Stock (85) — — 85 Acquired
May 27, 2022 QDEL Restricted Stock Units Common Stock (427) — — 427 Acquired
May 27, 2022 QDEL Restricted Stock Units Common Stock (262) — — 262 Acquired
May 27, 2022 QDEL Restricted Stock Units Common Stock (875) — — 875 Acquired
May 27, 2022 QDEL Non-Qualified Stock Options Common Stock (259) $53.27 April 4, 2028 259 Acquired
May 24, 2022 BDSX Restricted Stock Units Common Stock — — 83,333 Acquired
March 31, 2022 BDSX Restricted Stock Units Common Stock (20,044) — — 20,044 Disposed
June 29, 2021 BDSX Restricted Stock Units Common Stock (20,044) — — 20,044 Acquired
Dec. 7, 2020 BDSX Stock Options (Right to Buy) Common Stock (23,440) $6.83 April 14, 2030 23,440 Disposed
Dec. 7, 2020 BDSX Stock Options (Right to Buy) Common Stock (35,157) $6.83 July 15, 2029 35,157 Disposed
Oct. 30, 2020 BDSX 3% Convertible Debt due June 2021 Common Stock (3,522) $14.40 June 30, 2021 — Disposed
Oct. 30, 2020 BDSX 3% Convertible Debt due June 2021 Common Stock (3,522) $14.40 June 30, 2021 — Disposed
Oct. 30, 2020 BDSX 3% Convertible Debt due June 2021 Common Stock (3,522) $14.40 June 30, 2021 — Disposed
Oct. 30, 2020 BDSX 3% Convertible Debt due June 2021 Common Stock (3,522) $14.40 June 30, 2021 — Disposed
Oct. 30, 2020 BDSX 3% Convertible Debt due June 2021 Common Stock (76,631) $14.40 June 30, 2021 — Disposed
Oct. 30, 2020 BDSX 3% Convertible Debt due June 2021 Common Stock (18,714) $14.40 June 30, 2021 — Disposed
Oct. 30, 2020 BDSX Series H Preferred Stock Common Stock (21,973) — — 130,433 Disposed
Oct. 30, 2020 BDSX Series H Preferred Stock Common Stock (140,877) — — 836,231 Disposed
Oct. 30, 2020 BDSX Series G Preferred Stock Common Stock (279,699) — — 1,660,268 Disposed
Oct. 30, 2020 BDSX Series F Preferred Stock Common Stock (152,212) — — 903,516 Disposed
Oct. 30, 2020 BDSX Series E Preferred Stock Common Stock (126,503) — — 750,907 Disposed
Oct. 30, 2020 BDSX Series D Preferred Stock Common Stock (115,610) — — 686,250 Disposed
Oct. 30, 2020 BDSX Series C Preferred Stock Common Stock (16,847) — — 100,000 Disposed
June 18, 2020 BDSX 3% Convertible Debt due June 2021 Common Stock (1,755) — June 30, 2021 — Acquired
June 18, 2020 BDSX 3% Convertible Debt due June 2021 Common Stock (1,755) — June 30, 2021 — Acquired
June 18, 2020 BDSX 3% Convertible Debt due June 2021 Common Stock (1,755) — June 30, 2021 — Acquired
June 18, 2020 BDSX 3% Convertible Debt due June 2021 Common Stock (1,755) — June 30, 2021 — Acquired
June 18, 2020 BDSX 3% Convertible Debt due June 2021 Common Stock (14,534) — June 30, 2021 — Acquired
June 18, 2020 BDSX 3% Convertible Debt due June 2021 Common Stock (383) — June 30, 2021 — Acquired

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

Initial ownership (Form 3) 17 holdings

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

Date Ticker Security Shares Ownership
June 1, 2022 QDEL No securities beneficially owned. 0 Direct
Oct. 27, 2020 BDSX Series C Preferred Stock→ Common Stock (16,847) 16,847 Direct
Oct. 27, 2020 BDSX Series D Preferred Stock→ Common Stock (115,610) 115,610 Direct
Oct. 27, 2020 BDSX Series E Preferred Stock→ Common Stock (126,503) 126,503 Direct
Oct. 27, 2020 BDSX Series F Preferred Stock→ Common Stock (152,212) 152,212 Direct
Oct. 27, 2020 BDSX Series G Preferred Stock→ Common Stock (279,699) 279,699 Direct
Oct. 27, 2020 BDSX Series H Preferred Stock→ Common Stock (140,877) 140,877 Direct
Oct. 27, 2020 BDSX Series H Preferred Stock→ Common Stock (21,974) 21,974 Indirect
Oct. 27, 2020 BDSX Stock Options (Right to Buy)→ Common Stock (35,158) 35,158 Direct
Oct. 27, 2020 BDSX Stock Options (Right to Buy)→ Common Stock (35,158) 35,158 Direct
Oct. 27, 2020 BDSX Stock Options (Right to buy)→ Common Stock (3,369) 3,369 Direct
Oct. 27, 2020 BDSX 3% Convertible Debt due June 2021→ Common Stock (18,714) 18,714 Indirect
Oct. 27, 2020 BDSX 3% Convertible Debt due June 2021→ Common Stock (76,631) 76,631 Direct
Oct. 27, 2020 BDSX 3% Convertible Debt due June 2021→ Common Stock (3,522) 3,522 Indirect
Oct. 27, 2020 BDSX 3% Convertible Debt due June 2021→ Common Stock (3,522) 3,522 Indirect
Oct. 27, 2020 BDSX 3% Convertible Debt due June 2021→ Common Stock (3,522) 3,522 Indirect
Oct. 27, 2020 BDSX 3% Convertible Debt due June 2021→ Common Stock (3,522) 3,522 Indirect