These disclosures are from 13Ds filed with the Securities and Exchange Commission. 13Ds are filed within 10 days of an entity's attaining more than 5% in any class of a company's securities. Subsequent changes in holdings or intentions must be reported in amended filings. This material is from Jan. 8 through Jan. 14, 2026. Source: VerityData
Increases in Holdings
Staar Surgical $(STAA)$ Yunqi Capital raised its stake in the maker of implantable lenses to 3,257,130 shares. Yunqi Capital did so through the purchase of 757,069 Staar Surgical shares from Dec. 31, 2025, through Jan. 6, 2026, at per share prices ranging from $21.53 to $23. Following the latest purchases, Yunqi Capital continues to own a 6.5% stake in Staar Surgical's outstanding stock. Shares of Staar Surgical have lost roughly 8.3% of their value since the beginning of this year.
Alumis $(ALMS)$ Samsara BioCapital increased its stake in the biotechnology company to 6,345,219 shares. Samsara BioCapital did so through the purchase of 1,210,228 shares from Nov. 26, 2025, through Jan. 9, 2026, at per share prices ranging from $7.31 to $17, including 588,235 shares purchased at $17 from the underwriters of the company's January public offering. Following the latest purchases, Samsara continues to own a 5.4% stake in Alumis' outstanding stock. Shares of Alumis have gained roughly 149.4% since the beginning of this year.
Decreases in Holdings
Astec Industries $(ASTE)$ Gamco Investors reduced its stake in the construction-equipment manufacturer to 1,771,629 shares. Gamco and its affiliates did so through the sale of 28,071 Astec Industries shares from Nov. 10, 2025, through Jan. 7, 2026, at per share prices ranging from $43.38 to $46.91. Following the latest sales, Gamco and its affiliates continue to own 7.7% of Astec Industries' outstanding stock. Shares of Astec Industries have gained roughly 12.3% in value since the beginning of this year.
Bristow Group$(VTOL)$ South Dakota Investment Council lowered its stake in the helicopter services provider to 2,755,118 shares. South Dakota Investment Council did so through the sale of 12,627 Bristow shares on Jan. 9 at per share prices ranging from $40.25 to $40.76. Following the latest sales, South Dakota Investment Council continues to own a 9.5% stake in Bristow Group's outstanding stock. Shares of Bristow Group have gained roughly 9.5% in value since the beginning of this year.
Monte Rosa Therapeutics(GLUE) Versant Venture Capital VI reduced its stake in the biotechnology company to 3,250,069 shares. Versant Venture Capital did so through the sale of 597,931 Monte Rosa Therapeutics shares from Nov. 19, 2025, through Jan. 7, 2026, at per share prices ranging from $14.25 to $23.33, and also completed pro rata distributions of 500,030 shares on Dec. 4 and 560,092 shares on Jan. 8. Following the latest activity, Versant Venture Capital continues to own a 4.99% stake in Monte Rosa Therapeutics' outstanding stock, placing Versant Venture Capital below the 5% threshold that would require it to report further sales. Shares of Monte Rosa Therapeutics have gained roughly 53.4% in value since the beginning of this year.
Email: editors@barrons.com
This content was created by Barron's, which is operated by Dow Jones & Co. Barron's is published independently from Dow Jones Newswires and The Wall Street Journal.
(END) Dow Jones Newswires
January 16, 2026 20:39 ET (01:39 GMT)
Copyright (c) 2026 Dow Jones & Company, Inc.
Comments