Guardian Pharmacy Services, Inc. Class A (GRDN)
GRDN moved a median of -0.06% 30 minutes after news, and -0.52% by the close. How GRDN actually reacts to news — the realized, point-in-time move the market made, measured across 224 labeled events over the last three years with zero look-ahead.
GRDN’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 46% | 216 |
| 30-min | -0.06% | 46% | 219 |
| 60-min | +0.08% | 52% | 219 |
| to close | -0.52% | 45% | 214 |
| Middle 50% of GRDN reactions | -0.96% to +0.54% |
|---|---|
| Median reaction (30-min) | -0.06% |
| Measured reactions | 224 |
Half of all Guardian Pharmacy Services, Inc. Class A news events land between -0.96% and +0.54% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How GRDN reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 10 | +0.28% | 60% | +0.00% |
| Coverage initiations | 14 | +0.04% | 50% | +0.45% |
| Rating reiterations | 18 | -0.64% | 39% | -1.38% |
Last 3 years, pulled 2026-09-21. Reaction = percent move vs. the price at the news timestamp. Counts and medians only. The same measurement runs across every name in the dataset. 2 further classes were observed with fewer than 10 measured events and are not published. See how GRDN ranks against every other measured name →
That’s how GRDN usually reacts — get an email when it moves on news →Email me when GRDN moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to GRDN's baseline. Nothing else.
Recent GRDN events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 8-K Guardian Pharmacy Servic For: Sep 10 | SEC filing · Form 8-K | SEC EDGAR | +1.38% | -0.95% | |
| ARCS Foundation Celebrates Inaugural Class of National Scholars at Purdue University | Press release | PR Web | +0.00% | +1.83% | |
| Guardian Pharmacy Services Acquires Assets of Tennessee-Based Nautilus Pharmacy | Press release | Business Wire | +0.34% | -0.48% | |
| Guardian Pharmacy Services, Inc., to Participate in Upcoming Jefferies Healthcare Services Investor Conference | Press release | Business Wire | +0.03% | -0.08% | |
| Form 10-Q Guardian Pharmacy Servic For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.10% | -0.48% | |
| Form 8-K Guardian Pharmacy Servic For: Aug 06 | SEC filing · Form 8-K | SEC EDGAR | -0.10% | -0.48% | |
| Guardian Pharmacy Services Reports Second Quarter 2026 Financial Results; Raises Full-Year Guidance | Press release | Business Wire | -0.10% | -0.48% | |
| Guardian Pharmacy Services, Inc. to Report Second Quarter 2026 Financial Results and Host Conference Call | Press release | Business Wire | -0.13% | +0.75% | |
| Guardian Pharmacy Services Expands Virginia Footprint With Acquisition of Wellness Concepts | Press release | Business Wire | +0.00% | -0.26% | |
| Form 8-K Guardian Pharmacy Servic For: Jun 22 | SEC filing · Form 8-K | SEC EDGAR | +0.33% | -4.18% | |
| Guardian Pharmacy Services, Inc. Announces Leadership Transitions | Press release | Business Wire | +0.33% | -4.18% | |
| Form 8-K Guardian Pharmacy Servic For: May 21 | SEC filing · Form 8-K | SEC EDGAR | +0.08% | +0.60% | |
| Form 8-K Guardian Pharmacy Servic For: May 05 | SEC filing · Form 8-K | SEC EDGAR | -0.82% | -1.07% | |
| Form 10-Q Guardian Pharmacy Servic For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -7.89% | +2.63% | |
| Form 8-K Guardian Pharmacy Servic For: May 06 | SEC filing · Form 8-K | SEC EDGAR | -7.89% | +2.63% | |
| Form S-3ASR Guardian Pharmacy Servic | SEC filing · Form S-3ASR | SEC EDGAR | -7.89% | +2.63% | |
| Form S-8 Guardian Pharmacy Servic | SEC filing · Form S-8 | SEC EDGAR | -7.89% | +2.63% | |
| Guardian Pharmacy Services Reports First Quarter 2026 Financial Results; Updates Full-Year Guidance | Press release | Business Wire | -7.89% | +2.63% | |
| Guardian Pharmacy Services, Inc. to Participate in the Bank of America 2026 Healthcare Conference | Press release | Business Wire | +0.18% | +1.76% | |
| Guardian Pharmacy Services, Inc. to Report First Quarter 2026 Financial Results and Host Conference Call | Press release | Business Wire | +0.44% | -1.62% | |
| Form DEF 14A Guardian Pharmacy Servic For: May 05 | SEC filing · Form DEF | SEC EDGAR | -0.47% | -2.43% | |
| Form DEFA14A Guardian Pharmacy Servic | SEC filing · Form DEFA14A | SEC EDGAR | -0.47% | -2.43% | |
| Form 8-K Guardian Pharmacy Servic For: Mar 18 | SEC filing · Form 8-K | SEC EDGAR | +1.03% | +2.04% | |
| Form S-3MEF Guardian Pharmacy Servic | SEC filing · Form S-3MEF | SEC EDGAR | -1.74% | +3.19% | |
| Guardian Pharmacy Services Announces Pricing of Upsized Underwritten Public Offering of Class A Common Stock | Press release | Business Wire | +0.47% | +6.97% | |
| Guardian Pharmacy Services Announces Launch of Underwritten Public Offering of Class A Common Stock | Press release | Business Wire | +0.47% | +6.97% | |
| Form 10-K Guardian Pharmacy Servic For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -4.32% | -3.62% | |
| Form 8-K Guardian Pharmacy Servic For: Mar 11 | SEC filing · Form 8-K | SEC EDGAR | -4.32% | -3.62% | |
| Guardian Pharmacy Services Reports Fourth Quarter and Full Year 2025 Financial Results; Raises 2026 Adjusted EBITDA Guidance | Press release | Business Wire | -4.32% | -3.62% | |
| Guardian Pharmacy Services, Inc. to Participate in Upcoming Oppenheimer Healthcare MedTech & Services Conference | Press release | Business Wire | -1.08% | +1.02% | |
| Guardian Pharmacy Services, Inc. to Participate in Upcoming Raymond James Institutional Investor Conference | Press release | Business Wire | -0.76% | +0.03% | |
| Guardian Pharmacy Services, Inc., to Report Fourth Quarter and Full-Year 2025 Financial Results and Host Conference Call | Press release | Business Wire | +0.00% | -1.14% | |
| Form 8-K Guardian Pharmacy Servic For: Jan 13 | SEC filing · Form 8-K | SEC EDGAR | -1.37% | -5.28% | |
| Guardian Pharmacy Services Reiterates 2025 Guidance and Provides 2026 Outlook | Press release | Business Wire | -1.37% | -5.28% | |
| Guardian Pharmacy Services, Inc. to Participate in Upcoming J.P. Morgan Healthcare Conference | Press release | Business Wire | +1.21% | +0.29% | |
| Form 10-Q Guardian Pharmacy Servic For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +6.20% | -2.07% | |
| Form 8-K Guardian Pharmacy Servic For: Nov 10 | SEC filing · Form 8-K | SEC EDGAR | +6.20% | -2.07% | |
| Guardian Pharmacy Services Reports Third Quarter 2025 Financial Results; Raises Full-Year Guidance | Press release | Business Wire | +6.20% | -2.07% | |
| Guardian Pharmacy Services, Inc. to Participate in Upcoming Stephens Investment Conference | Press release | Business Wire | +0.17% | -4.36% | |
| Form 8-K Guardian Pharmacy Servic For: Oct 14 | SEC filing · Form 8-K | SEC EDGAR | +0.29% | +2.13% | |
| Form S-3 Guardian Pharmacy Servic | SEC filing · Form S-3 | SEC EDGAR | +0.29% | +2.13% | |
| Guardian Pharmacy Services Announces Filing of S-3 Shelf Registration Statement and Lock-up Agreements with Pre-IPO Holders of Class A Common Stock | Press release | Business Wire | +0.29% | +2.13% | |
| Guardian Pharmacy Services, Inc. to Report Third Quarter 2025 Financial Results and Host Conference Call | Press release | Business Wire | +0.00% | -0.54% | |
| Form 8-K Guardian Pharmacy Servic For: Sep 18 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -3.79% | |
| Guardian Pharmacy Services, Inc. to Participate in Upcoming Jefferies Healthcare Services Investor Conference | Press release | Business Wire | -0.31% | +4.16% | |
| Form 10-Q Guardian Pharmacy Servic For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +1.39% | — | |
| Form 8-K Guardian Pharmacy Servic For: Aug 11 | SEC filing · Form 8-K | SEC EDGAR | +1.39% | — | |
| Guardian Pharmacy Services Reports Second Quarter 2025 Financial Results; Raises Full-Year Guidance | Press release | Business Wire | +1.39% | — | |
| Guardian Pharmacy Services Strengthens Pacific Northwest Presence with Acquisition of Oregon-based Managed Healthcare Pharmacy | Press release | Business Wire | +1.47% | +0.65% | |
| Guardian Pharmacy Services, Inc. to Report Second Quarter 2025 Financial Results and Host Conference Call | Press release | Business Wire | -0.27% | +1.97% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the GRDN section they belong to.
Where else GRDN is measured.
GRDN earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Guardian Pharmacy Services, Inc. Class A's median reaction calculated?
Every labeled GRDN news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 224 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 46% of GRDN's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does GRDN's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.