Ray Prudo, M.D.

CIK 1653262 · View on SEC EDGAR ↗

Insider Activist

First SEC filing: Jan. 2, 2024 · Latest: March 4, 2026

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 10 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 20, 2025 AKTX A 225,000 225,000 Direct Acquired (price as of 2026-08-19)
March 20, 2025 AKTX A 175,000 175,000 Direct Acquired (price as of 2026-08-19)
March 6, 2025 AKTX A 446,428 $1.12 $499,999 446,428 Direct Acquired -82.4% (price as of 2026-08-19)
March 6, 2025 AKTX A 446,428 $1.12 $499,999 446,428 Direct Acquired -82.4% (price as of 2026-08-19)
March 6, 2025 AKTX A 446,428 $1.12 $499,999 2,484,990 Direct +21.90% Acquired -82.4% (price as of 2026-08-19)
Dec. 2, 2024 AKTX A 419,286,000 419,286,000 Direct Acquired (price as of 2026-08-19)
Dec. 2, 2024 AKTX A 419,286,000 4,077,124,600 Direct +11.46% Acquired (price as of 2026-08-19)
June 28, 2024 AKTX A 10,000,000 10,000,000 Direct Acquired (price as of 2026-08-19)
May 31, 2024 AKTX A 1,326,258,000 1,326,258,000 Direct Acquired (price as of 2026-08-19)
May 31, 2024 AKTX A 1,326,258,000 3,657,838,600 Direct +56.88% 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 20, 2025 AKTX Stock Option (Right to Buy) American Depositary Shares representing Ordinary Shares [F1] (225,000) $1.50 March 20, 2035 225,000 Acquired
March 20, 2025 AKTX Stock Option (Right to Buy) American Depositary Shares representing Ordinary Shares [F1] (175,000) $1.50 March 20, 2035 175,000 Acquired
March 6, 2025 AKTX Series B Warrants (Right to Buy) American Depositary Shares representing Ordinary Shares [F1] (446,428) $0.87 March 6, 2030 446,428 Acquired
March 6, 2025 AKTX Series A Warrants (Right to Buy) American Depositary Shares representing Ordinary Shares [F1] (446,428) $0.87 March 6, 2026 446,428 Acquired
Dec. 2, 2024 AKTX Warrants (Right to Buy) Ordinary Shares, par value $0.0001 per share [F1] (419,286,000) Dec. 2, 2027 419,286,000 Acquired
June 28, 2024 AKTX Stock Option (Right to Buy) Ordinary Shares, par value $0.0001 per share [F3] (10,000,000) June 28, 2034 10,000,000 Acquired
May 31, 2024 AKTX Warrants (Right to Buy) Ordinary Shares, par value $0.0001 per share [F1] (1,326,258,000) May 31, 2027 1,326,258,000 Acquired

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

Initial ownership (Form 3) 11 holdings

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

Date Ticker Security Shares Ownership
Jan. 2, 2024 AKTX Ordinary Shares, par value $0.0001 per share 2,331,580,600 Direct
Jan. 2, 2024 AKTX Ordinary Shares, par value $0.0001 per share 38,709,600 Indirect
Jan. 2, 2024 AKTX Ordinary Shares, par value $0.0001 per share 800,766,600 Indirect
Jan. 2, 2024 AKTX Stock Option (Right to Buy)→ Ordinary Shares, par value $0.0001 per share (10,000,000) 10,000,000 Direct
Jan. 2, 2024 AKTX Warrants (Right to Buy)→ Ordinary Shares, par value $0.0001 per share (9,210,500) 9,210,500 Indirect
Jan. 2, 2024 AKTX Warrants (Right to Buy)→ Ordinary Shares, par value $0.0001 per share (7,500,000) 7,500,000 Direct
Jan. 2, 2024 AKTX Warrants (Right to Buy)→ Ordinary Shares, par value $0.0001 per share (20,229,700) 20,229,700 Direct
Jan. 2, 2024 AKTX Warrants (Right to Buy)→ Ordinary Shares, par value $0.0001 per share (41,666,700) 41,666,700 Direct
Jan. 2, 2024 AKTX Warrants (Right to Buy)→ Ordinary Shares, par value $0.0001 per share (117,647,100) 117,647,100 Direct
Jan. 2, 2024 AKTX Warrants (Right to Buy)→ Ordinary Shares, par value $0.0001 per share (117,647,100) 117,647,100 Direct
Sept. 23, 2015 AKTX Ordinary Shares 722,345,600 Indirect