Instil Bio Reports Second Quarter 2026 Financial Results and Provides Corporate Update (Form 8-K)

Instil Bio Reports Second Quarter 2026 Financial Results and

Provides Corporate Update

DALLAS, TX, August 13, 2026 (GLOBE NEWSWIRE) -- Instil Bio, Inc. ("Instil") (Nasdaq: TIL), a biotechnology company focused on identifying and advancing innovative therapeutics, today reported its second quarter 2026 financial results and provided a corporate update.

Recent Highlights:

•Instil is evaluating potential acquisitions, in-licensing and related opportunities that may provide access to promising novel therapeutic candidates.

•Cash position of approximately $69.9 million as of June 30, 2026 expected to fund current operating plan beyond 2027.

Second Quarter 2026 Financial and Operating Results:

As of June 30, 2026, Instil had cash, cash equivalents, restricted cash and marketable securities of $69.9 million, which consisted of $5.5 million in cash and cash equivalents, $0.3 million in restricted cash and $64.1 million in marketable securities, compared to $76.3 million in cash, cash equivalents, restricted cash and marketable securities as of December 31, 2025, consisting of $6.6 million in cash and cash equivalents, $0.2 million in restricted cash, and $69.5 million in marketable securities. Instil expects that its cash, cash equivalents, restricted cash and marketable securities as of June 30, 2026 will enable it to fund its operating plan beyond 2027.

In-process research and development expenses were nil for the three and six months ended June 30, 2026, compared to $10.0 million for both the three and six months ended June 30, 2025.

Research and development expenses were $0.3 million and $0.9 million for the three and six months ended June 30, 2026, respectively, compared to $6.7 million and $12.1 million for the three and six months ended June 30, 2025, respectively.

General and administrative expenses were $5.1 million and $10.5 million for the three and six months ended June 30, 2026, respectively, compared to $6.2 million and $15.3 million for the three and six months ended June 30, 2025, respectively.

Restructuring and impairment charges, net were $0.2 million and $1.2 million for the three and six months ended June 30, 2026, respectively, compared to $0.5 million and $16.6 million for three and six months ended June 30, 2025, respectively.

Net loss per share, basic and diluted were $0.63 and $1.25 for the three and six months ended June 30, 2026, respectively, compared to $3.24 and $7.55 for the three and six months ended June 30, 2025, respectively. Non-GAAP net loss per share, basic and diluted, were $0.45 and $0.78 for the three and six months ended June 30, 2026, respectively, compared to $2.88 and $4.21 for the three and six months ended June 30, 2025, respectively.

Note Regarding Use of Non-GAAP Financial Measures

In this press release, Instil has presented certain financial information that has not been prepared in accordance with U.S. generally accepted accounting principles ("GAAP"). These non-GAAP financial

measures include non-GAAP net loss and non-GAAP net loss per share, which are defined as net loss and net loss per share, respectively, excluding non-cash stock-based compensation expense and restructuring and impairment charges, net. Instil believes that these non-GAAP financial measures, when considered together with the GAAP figures, can enhance an overall understanding of Instil's financial performance. The non-GAAP financial measures are included with the intent of providing investors with a more complete understanding of Instil's operating results. In addition, these non-GAAP financial measures are among the indicators Instil's management uses for planning purposes and to measure Instil's performance. These non-GAAP financial measures should be considered in addition to, and not as a substitute for, or superior to, financial measures calculated in accordance with GAAP. The non-GAAP financial measures used by Instil may be calculated differently from, and therefore may not be comparable to, non-GAAP financial measures used by other companies. Please refer to the below reconciliation of these non-GAAP financial measures to the comparable GAAP financial measures.

About Instil Bio

Instil Bio, Inc. is a biotechnology company focused on identifying and advancing innovative therapeutics. For more information, visit www.instilbio.com.