STRO earnings date, and what happened the last 4 times

Next report

Thu Nov 5

Quality Score today -11

Before the open, in 10 days. Expected: the company has not confirmed it.

STRO closed higher after 2 of its last 4 reports. On average it closed -4.1% the session after a report.

The moment STRO reports

Its figures, in plain words
How it moves after, beside its last four
Its Quality Score going in, and after

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What happened after STRO's last 4 reports

STRO's last 4 earnings reports
Reported	Score going in	Gap	Reaction	5 sessions
Aug 12, 20262026 · Before open	7estimated	-5.8%	-14.9%	-12.0%
May 14, 20262026 · After close	11estimated	+14.1%	+1.4%	-20.3%
Mar 23, 20262026 · After close	7estimated	+8.8%	+10.5%	+13.0%
Nov 6, 20252025 · After close	-7estimated	-4.5%	-13.4%	-1.4%

Aug 12, 2026, before the open: that session STRO opened -5.8% and closed -14.9%, and five sessions on it stood -12.0%. Its Quality Score going in was 7 (Average), estimated.
May 14, 2026, after the close: the next session STRO opened +14.1% and closed +1.4%, and five sessions on it stood -20.3%. Its Quality Score going in was 11 (Above Average), estimated.
Mar 23, 2026, after the close: the next session STRO opened +8.8% and closed +10.5%, and five sessions on it stood +13.0%. Its Quality Score going in was 7 (Average), estimated.
Nov 6, 2025, after the close: the next session STRO opened -4.5% and closed -13.4%, and five sessions on it stood -1.4%. Its Quality Score going in was -7 (Poor), estimated.

Across these 4 reports STRO opened higher after 2 of 4 and closed higher after 2 of 4; on average it opened +3.2%, closed -4.1%, and stood -5.2% five sessions on. Its Quality Score is -11 today, against 7 going into its Aug 12, 2026 report.

Gap: where the stock opened the session after the report. Reaction: where that session closed. Both against the close before the report. The largest of the 4: -14.9% after the Aug 12, 2026 report. A score marked estimated was worked out afterwards from that day's prices and filings; Breakaway has recorded every score live since Sep 9 2026.

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Questions about STRO's earnings

As of Oct 26, 2026: Sutro Biopharma (STRO): expected to report Thu Nov 5, before the open. STRO closed higher after 2 of its last 4 reports. Its Quality Score is -11 (Poor). Scores as of 10:16 PM ET, 15 minutes behind.

When is STRO's next earnings date?

Expected to report Thu Nov 5, before the open, a date Breakaway expects from the company's usual timing; the company has not confirmed it. STRO closed higher after 2 of its last 4 reports. Past behavior, not a forecast.

Does STRO report before or after the market?

STRO is expected to report Thu Nov 5, before the open. Its last 4 reports came 3 after the close and 1 before the open.

How did STRO stock react to its last earnings report?

Aug 12, 2026, before the open: that session STRO opened -5.8% and closed -14.9%, and five sessions on it stood -12.0%.

Does STRO stock usually go up after earnings?

STRO closed higher after 2 of its last 4 reports. On average it closed -4.1% the session after a report, after opening +3.2%. Past behavior, not a forecast.

Sutro Biopharma's page has its Quality Score, its chart, and its insiders' trades. Everyone reporting beside it: next week's earnings.