XOMA Royalty Corporation (XOMA)
XOMA moved a median of 0.00% 30 minutes after news, and -0.02% by the close. How XOMA actually reacts to news — the realized, point-in-time move the market made, measured across 313 labeled events over the last three years with zero look-ahead.
XOMA’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 31% | 244 |
| 30-min | 0.00% | 48% | 263 |
| 60-min | 0.00% | 48% | 268 |
| to close | -0.02% | 50% | 273 |
| Middle 50% of XOMA reactions | -0.81% to +0.94% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 313 |
Half of all XOMA Royalty Corporation news events land between -0.81% and +0.94% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How XOMA reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 16 | -0.15% | 25% | +0.86% |
| Analyst downgrades | 18 | +0.14% | 67% | -0.03% |
| Rating reiterations | 45 | 0.00% | 51% | +0.05% |
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. 3 further classes were observed with fewer than 10 measured events and are not published. See how XOMA ranks against every other measured name →
That’s how XOMA usually reacts — get an email when it moves on news →Email me when XOMA moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to XOMA's baseline. Nothing else.
Recent XOMA events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 15-12G XOMA Royalty Corp | SEC filing · Form 15-12G | SEC EDGAR | — | — | |
| Form EFFECT XOMA Royalty Corp | SEC filing · Form EFFECT | SEC EDGAR | — | — | |
| Form POS AM XOMA Royalty Corp | SEC filing · Form POS | SEC EDGAR | — | — | |
| Form S-8 POS XOMA Royalty Corp | SEC filing · Form S-8 | SEC EDGAR | — | — | |
| Form 8-K XOMA Royalty Corp For: Jul 13 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| XOMA Royalty Announces Closing of Its Acquisition by Ligand | Press release | GlobeNewswire | — | — | |
| Halper Sadeh LLC is Investigating Whether XOMA, PAYO, FOX, NSA are Obtaining Fair Deals for their Shareholders | Press release | GlobeNewswire | — | -0.37% | |
| Form 8-K XOMA Royalty Corp For: Jun 12 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.31% | |
| Form DEFA14A XOMA Royalty Corp | SEC filing · Form DEFA14A | SEC EDGAR | +0.00% | +0.31% | |
| XOMA Royalty Corporation Declares Quarterly Preferred Stock Dividend and Announces Redemption of Its Perpetual Preferred Stock and CVR Dividend Record Date | Press release | GlobeNewswire | +0.00% | +0.31% | |
| Form DEFM14A XOMA Royalty Corp | SEC filing · Form DEFM14A | SEC EDGAR | +0.00% | -0.05% | |
| Halper Sadeh LLC is Investigating Whether CZR, XOMA, RAMP, TMHC are Obtaining Fair Deals for their Shareholders | Press release | GlobeNewswire | — | -0.31% | |
| Form 8-K XOMA Royalty Corp For: May 21 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -0.31% | |
| Form 8-K XOMA Royalty Corp For: May 16 | SEC filing · Form 8-K | SEC EDGAR | -0.29% | -0.79% | |
| Form DEFA14A XOMA Royalty Corp | SEC filing · Form DEFA14A | SEC EDGAR | -0.29% | -0.79% | |
| Are XOMA, OGN, VRE Obtaining Fair Deals for their Shareholders? | Press release | PR Newswire | +0.12% | -0.21% | |
| Form 10-Q XOMA Royalty Corp For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.25% | -0.21% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating Bronstein, Gewirtz & Grossman, LLC (XOMA) And Encourages Stockholders to Connect | Press release | ACCESS Newswire | -0.01% | +0.34% | |
| Halper Sadeh LLC is Investigating Whether HLX, OGN, XOMA, RMAX are Obtaining Fair Deals for their Shareholders | Press release | GlobeNewswire | -0.05% | -0.51% | |
| BRODSKY & SMITH SHAREHOLDER UPDATE: Notifying Investors of the Following Investigations: XOMA Royalty Corporation (Nasdaq – XOMA), Organon & Co. (NYSE – OGN), RE/MAX Holdings, Inc. (NYSE – RMAX), Soleno Therapeutics, Inc. (Nasdaq – SLNO) | Press release | GlobeNewswire | -0.10% | +0.68% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages XOMA Royalty Corporation (XOMA) Shareholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | +0.11% | +1.24% | |
| Halper Sadeh LLC is Investigating Whether SLNO, OGN, RMAX, XOMA are Obtaining Fair Deals for their Shareholders | Press release | GlobeNewswire | -0.22% | -0.22% | |
| Halper Sadeh LLC is Investigating Whether XOMA, RMAX, GRTX are Obtaining Fair Deals for their Shareholders | Press release | GlobeNewswire | +0.14% | +0.85% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating XOMA Royalty Corporation (XOMA) And Encourages Shareholders to Connect | Press release | ACCESS Newswire | -0.24% | -1.11% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages XOMA Royalty Corporation (XOMA) Stockholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | +0.95% | -0.89% | |
| Form 8-K XOMA Royalty Corp For: Apr 27 | SEC filing · Form 8-K | SEC EDGAR | +0.85% | +1.82% | |
| Form 8-K/A XOMA Royalty Corp For: Feb 09 | SEC filing · Form 8-K | SEC EDGAR | +0.23% | -1.78% | |
| Form DEFA14A XOMA Royalty Corp | SEC filing · Form DEFA14A | SEC EDGAR | +0.85% | +1.82% | |
| Ligand to Acquire XOMA Royalty, Further Accelerating Profit Growth and Strengthening Ligand’s Position as a Leading Biopharma Royalty Aggregator | Press release | GlobeNewswire | +0.85% | +1.82% | |
| XOMA Stock Alert: Halper Sadeh LLC is Investigating Whether XOMA Royalty Corporation is Obtaining a Fair Price for its Shareholders | Press release | Business Wire | +0.85% | +1.82% | |
| Form ARS XOMA Royalty Corp For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +1.36% | +1.85% | |
| Form DEF 14A XOMA Royalty Corp For: May 21 | SEC filing · Form DEF | SEC EDGAR | +1.36% | +1.85% | |
| Form DEFA14A XOMA Royalty Corp | SEC filing · Form DEFA14A | SEC EDGAR | +1.36% | +1.85% | |
| Form 10-K XOMA Royalty Corp For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.00% | +3.79% | |
| Form 8-K XOMA Royalty Corp For: Mar 18 | SEC filing · Form 8-K | SEC EDGAR | -3.13% | -6.66% | |
| Form S-8 XOMA Royalty Corp | SEC filing · Form S-8 | SEC EDGAR | +0.00% | +3.79% | |
| XOMA Royalty Declares Quarterly Preferred Stock Dividends | Press release | GlobeNewswire | +0.00% | +3.79% | |
| XOMA Royalty Reports 2025 Financial Results and Highlights Recent Business Achievements | Press release | GlobeNewswire | -3.13% | -6.66% | |
| XOMA Royalty to Report Fourth Quarter and Full Year 2025 Financial Results on March 18, 2026 | Press release | GlobeNewswire | +0.72% | +1.70% | |
| Form 8-K XOMA Royalty Corp For: Mar 02 | SEC filing · Form 8-K | SEC EDGAR | -0.35% | +2.66% | |
| XOMA Royalty to Present at Investor Conferences in March | Press release | GlobeNewswire | -1.06% | -0.24% | |
| Form 8-K XOMA Royalty Corp For: Feb 09 | SEC filing · Form 8-K | SEC EDGAR | -0.30% | -2.26% | |
| XOMA Royalty Announces Closing of Tender Offer and Completed Acquisition of Generation Bio, Inc. | Press release | GlobeNewswire | +0.13% | -0.13% | |
| Form 8-K/A XOMA Royalty Corp For: Nov 21 | SEC filing · Form 8-K | SEC EDGAR | +1.32% | +1.97% | |
| Form 8-K XOMA Royalty Corp For: Jan 09 | SEC filing · Form 8-K | SEC EDGAR | -0.98% | -7.38% | |
| Form 8-K XOMA Royalty Corp For: Jan 12 | SEC filing · Form 8-K | SEC EDGAR | -7.01% | -8.38% | |
| XOMA Royalty Announces CFO Transition | Press release | GlobeNewswire | -7.01% | -8.38% | |
| Form 8-K XOMA Royalty Corp For: Dec 05 | SEC filing · Form 8-K | SEC EDGAR | -0.14% | -0.14% | |
| XOMA Royalty and Takeda Execute Strategic Royalty Sharing Transaction and Amend Existing Agreement for Mezagitamab | Press release | GlobeNewswire | -0.75% | +2.79% | |
| XOMA Royalty Declares Quarterly Preferred Stock Dividends | Press release | GlobeNewswire | -0.08% | +0.63% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the XOMA section they belong to.
Where else XOMA is measured.
XOMA earnings → · Analyst actions → · SEC filings →
Other Healthcare names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Myomo Inc. (MYO) | 315 | +0.35% | 54% |
| ICU Medical, Inc. (ICUI) | 313 | +0.02% | 52% |
| Gen Digital Inc. (GEN) | 312 | +0.08% | 52% |
| Dynavax Technologies Corporation (DVAX) | 310 | +0.07% | 56% |
Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not.
All Healthcare names, measured the same way →
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Every name we’ve measured, in one place.
How the numbers are made.
How is XOMA Royalty Corporation's median reaction calculated?
Every labeled XOMA 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 313 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. 48% of XOMA'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 XOMA'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.