Christian B. Voigtlander, Chief Operating Officer of ICU Medical Inc. ($ICUI), sold 8,929 shares of company stock on August 11, 2026, in an open-market transaction valued at $1,633,404. The shares were sold at an average price of $182.93 each, according to a Form 4 filed with the Securities and Exchange Commission the same day.
Following the sale, Voigtlander held 37,377 shares of $ICUI directly. Prior to the transaction, his position stood at 46,306 shares.
The August 2026 sale was Voigtlander's third reported open-market disposition as COO. On May 27 and May 28, 2025, he sold a combined 9,930 shares at prices ranging from $128.50 to $131.00 per share, generating total proceeds of approximately $1.29 million across the two transactions. Those May 2025 filings were submitted one day after the trades. After the two sales, his reported holdings were 6,088 shares. Between late May 2025 and early August 2026, his position grew by roughly 40,200 shares before accounting for the latest sale, bringing his pre-transaction total to 46,306 shares.
Voigtlander's transaction followed three other insider sales at $ICUI earlier in 2026. On May 12, director David C. Greenberg sold 2,424 shares at $122.91 per share, totaling $297,934 and leaving him with 7,960 shares. On May 14, vice president Virginia Ruth Sanzone sold 2,447 shares at $124.08 per share, totaling $303,624, reducing her holdings to 19,460 shares. On May 22, president Daniel Woolson — who had previously sold 2,897 shares as a vice president in November 2025 — sold an additional 2,123 shares at $132.21 per share, totaling $280,685 and leaving him with 22,479 shares. All four 2026 insider sales were open-market transactions, and together they represented 15,923 shares sold for combined proceeds of approximately $2.52 million.
The stock price at which Voigtlander sold in August was higher than the levels at which his colleagues sold in May. Shares of $ICUI traded in a range of roughly $122 to $132 during the May insider sales and closed at $182.42 on August 10, 2026, the last trading day before Voigtlander's transaction. The stock had risen as high as $192.85 intraday on August 7 before settling lower.
ICU Medical develops and manufactures infusion therapy and critical care products. The most recent open-market insider purchases at the company occurred in August 2025, when CEO Vivek Jain acquired 21,929 shares across two transactions on August 14 at prices averaging $112.12 and $112.92 per share, for a total outlay of approximately $2.47 million, bringing his holdings to 130,149 shares. Director Greenberg also purchased 1,200 shares on August 27, 2025, at prices of $126.14 and $126.69 per share.
Voigtlander filed the Form 4 for his August 11 sale the same day as the transaction, a same-day disclosure that contrasted with the one-day filing lag on his May 2025 sales.