Darin J. Weber

CIK 1936228 · View on SEC EDGAR ↗

Insider

First SEC filing: July 13, 2022 · Latest: July 13, 2022

On this page

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 14 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

14 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
July 8, 2025 PROK S 10b5-1 103,480 $3.02 $312,510 0 Direct -100.00% Disposed -52.8% (price as of 2026-08-20)
Sept. 19, 2024 PROK S 10b5-1 16,412 $2.50 $41,030 103,480 Direct -13.69% Disposed -43.0% (price as of 2026-08-20)
July 26, 2024 PROK S 10b5-1 826 $2.50 $2,065 119,892 Direct -0.68% Disposed -43.0% (price as of 2026-08-20)
June 18, 2024 PROK S 10b5-1 17,238 $2.82 $48,611 120,718 Direct -12.50% Disposed -49.5% (price as of 2026-08-20)
May 20, 2024 PROK S 10b5-1 17,238 $4.08 $70,331 137,956 Direct -11.11% Disposed -65.1% (price as of 2026-08-20)
April 22, 2024 PROK S 10b5-1 16,438 $2.51 $41,259 155,194 Direct -9.58% Disposed -43.2% (price as of 2026-08-20)
April 18, 2024 PROK S 10b5-1 800 $2.54 $2,032 171,632 Direct -0.46% Disposed -43.9% (price as of 2026-08-20)
April 16, 2024 PROK S 10b5-1 17,238 $2.50 $43,095 172,432 Direct -9.09% Disposed -43.0% (price as of 2026-08-20)
April 12, 2024 PROK S 10b5-1 84,103 $1.73 $145,498 189,670 Direct -30.72% Disposed -17.6% (price as of 2026-08-20)
April 1, 2024 PROK S 10b5-1 300 $1.69 $507 273,773 Direct -0.11% Disposed -15.7% (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
March 1, 2026 PROK Employee stock option (right to buy) Class A Common Stock (400,000) $2.24 March 1, 2036 400,000 Acquired
March 1, 2025 PROK Employee stock option (right to buy) Class A Ordinary Shares (450,000) $1.23 March 1, 2035 450,000 Acquired
March 1, 2024 PROK Employee stock option (right to buy) Class A Ordinary Shares (117,264) $1.61 March 1, 2034 117,264 Acquired
March 1, 2024 PROK Employee stock option (right to buy) Class A Ordinary Shares (225,000) $1.61 March 1, 2034 225,000 Acquired
Feb. 5, 2024 PROK Common Units in ProKidney LP [F1] Class A Ordinary Shares (137,073) $0.00 — 137,073 Disposed
Feb. 5, 2024 PROK Class B Ordinary Shares [F1] Class A Ordinary Shares (137,073) $0.00 — 137,073 Disposed
Aug. 25, 2023 PROK Common Units in ProKidney LP [F1] Class A Ordinary Shares (137,000) $0.00 — 137,000 Disposed
Aug. 25, 2023 PROK Class B Ordinary Shares [F1] Class A Ordinary Shares (137,000) $0.00 — 137,000 Disposed
Jan. 16, 2023 PROK Employee stock option (right to buy) Class A Ordinary Shares (250,000) $8.43 Jan. 16, 2033 250,000 Acquired
Oct. 20, 2022 PROK Employee stock option (right to buy) Class A Ordinary Shares (418,076) $10.33 Oct. 20, 2032 418,076 Acquired
July 11, 2022 PROK Common Units in ProKidney LP [F3] Class A Ordinary Shares (676,356) — — 676,356 Acquired
July 11, 2022 PROK Class B Ordinary Shares Class A Ordinary Shares (676,356) — — 676,356 Acquired

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

Initial ownership (Form 3) 1 holding

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

Date Ticker Security Shares Ownership
July 13, 2022 PROK No securities owned. 0 Direct