The buying and selling of stock by a company’s insider give investors a sense that the stock will rise or fall in the future. Sutro Biopharma Inc shares valued at $13,607 were purchased by Gerber Hans-Peter on Oct 15 ’25. At $0.80 per share, Gerber Hans-Peter acquired 17,000 shares. The insider’s holdings grew to 71,832 shares worth approximately $0.83 million following the completion of this transaction.
Also, Chow Gregory K. purchased 19,750 shares, netting a total of over 15,998 in proceeds. Following the buying of shares at $0.81 each, the insider now holds 19,750 shares.
Before that, Chung Jane had added 12,500 shares to its account. In a trade valued at $10,011, the Chief Executive Officer bought Sutro Biopharma Inc shares for $0.80 each. Upon closing the transaction, the insider’s holdings increased to 12,500 shares, worth approximately $1.42 million.
As published in a research note from Piper Sandler on June 16, 2025, Sutro Biopharma Inc [STRO] has been rated up from a Neutral to an Overweight and the price target has been revised to $2. Analysts at H.C. Wainwright downgraded the stock from ‘”a Buy”‘ to ‘”a Neutral”‘ outlook in a report released in mid March. As of March 14, 2025, Wedbush has decreased its “an Outperform” rating to a “Neutral” for STRO. Earlier on March 14, 2025, Citizens JMP downgraded its rating. Their new recommendation was “a Mkt perform” for STRO stock which previously was a “a Mkt outperform”.
Analyzing STRO Stock Performance
On last trading session, Sutro Biopharma Inc [NASDAQ: STRO] plunged -0.86% to $11.57. The stock’s lowest price that day was $11.49, but it reached a high of $12.145 in the same session. During the last five days, there has been a surge of approximately 11.46%. Over the course of the year, Sutro Biopharma Inc shares have dropped approximately -38.78%. Shares of the company reached a 52-week high of $21.50 on 01/24/25 and a 52-week low of $5.23 on 04/17/25.
Support And Resistance Levels for Sutro Biopharma Inc (STRO)
According to the 24-hour chart, there is a support level at 11.30, which, if violated, would cause prices to drop to 11.02. In the upper region, resistance lies at 12.01. The next price resistance is at 12.45. RSI (Relative Strength Index) is 64.26 on the 14-day chart, showing neutral technical sentiment.
Is Sutro Biopharma Inc subject to short interest?
Stocks of Sutro Biopharma Inc saw a sharp rise in short interest on 2025-12-15 jumping by 0.21 million shares to 0.56 million. Data from Yahoo Finance shows that the short interest on 2025-11-14 was 0.35 million shares. A jump of 37.14% in short interest reflects a negative sentiment towards the stock. Despite the fact that short shares comprise just 5.08 of the overall float, the days-to-cover ratio (short ratio) jumped to 5.08.
Which companies own the most shares of Sutro Biopharma Inc (STRO)?
In terms of Sutro Biopharma Inc share price expectations, FactSet research, analysts set an average price target of 10 in the next 12 months, down nearly -14.31% from the previous closing price of $11.67. Analysts anticipate Sutro Biopharma Inc stock to reach 15 by 2026, with the lowest price target being 2. In spite of this, 5 analysts ranked Sutro Biopharma Inc stock as Buy at the end of 2026. On March 14, 2025, BofA Securities assigned a price target of “an Underperform” to the stock and downgraded coverage with a $1.
