Pfizer Inc. engagement report
@pfizer - 469K followers on X
Measured over 6 original posts from a 30-day window, last computed on October 25, 2026.
Engagement
Early reading. We have captured 6 original posts for this account, below the 8 we require before treating a median as settled. The numbers above describe what we have seen so far, not a finished profile of the account.
A typical post picks up 22 interactions against 469K followers, an engagement rate of 0.005%. Posts are seen about 3.4K times each, and 0.63% of those impressions turn into an interaction. That is about 0.729% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 0.2 posts a day over the last 30 days, though only 20% of days saw any activity at all. Most posts go out around 14:00 UTC, and Tuesday is the busiest day of the week. Of the 6 posts sampled, 100% carry an image or video and 100% link out. The account's strongest tracked post pulled 88 interactions, about 4.0x its own typical post. Recurring topics include #obesity, #ai, #breastcancerawarenessmonth. Only 6 original posts have been captured so far, fewer than the 8 posts we want behind a median before treating it as settled. Read the figures above as an early measurement of this account, not as a finished profile of it.
Measured over 6 original posts from a 30-day window, last computed on October 25, 2026. Recurring tags: #obesity, #ai, #breastcancerawarenessmonth.
Where this sits in the catalog
At 0.005%, Pfizer Inc. sits above the 10th percentile of the 205,152 accounts in this comparison. That places it in the bottom 25% band, which runs below 0.024%.
Show the percentile table
| Percentile | Engagement rate |
|---|---|
| 10th percentile | 0.004% |
| 25th percentile | 0.024% |
| 50th percentile | 0.143% |
| 75th percentile | 0.678% |
| 90th percentile | 2.55% |
| 99th percentile | 82.4% |
This ruler is the whole measured catalog, not a size-matched group: it shows where the raw rate falls across every account we can measure, all of which are large. For a like-for-like comparison, read the size-band percentile above instead. See how the bands are built
Posting timing
This account posts most often around 14:00 UTC, and Tuesday is its busiest day of the week. The bars below are the catalog-wide pattern, with this account's own busiest slot marked. They do not show how this account performs at each hour: we keep one aggregate per account, not one per hour, so that measurement does not exist in our data.
Show engagement by hour posted, utc as a table
| Hour (UTC) | Vs author median | Posts |
|---|---|---|
| 00:00 UTC | -1% | 89K |
| 01:00 UTC | -2% | 90K |
| 02:00 UTC | -3% | 88K |
| 03:00 UTC | -4% | 94K |
| 04:00 UTC | -5% | 76K |
| 05:00 UTC | -4% | 75K |
| 06:00 UTC | -5% | 86K |
| 07:00 UTC | -5% | 93K |
| 08:00 UTC | -4% | 108K |
| 09:00 UTC | -4% | 124K |
| 10:00 UTC | -3% | 129K |
| 11:00 UTC | -3% | 141K |
| 12:00 UTC | -3% | 154K |
| 13:00 UTC | -3% | 167K |
| 14:00 UTC | -4% | 173K |
| 15:00 UTC | -2% | 176K |
| 16:00 UTC | -3% | 171K |
| 17:00 UTC | -3% | 159K |
| 18:00 UTC | -2% | 149K |
| 19:00 UTC | -2% | 141K |
| 20:00 UTC | -1% | 131K |
| 21:00 UTC | 0% | 116K |
| 22:00 UTC | -2% | 100K |
| 23:00 UTC | -1% | 90K |
Show engagement by day of week as a table
| Day | Vs author median | Posts |
|---|---|---|
| Sunday | +5% | 393K |
| Monday | +1% | 483K |
| Tuesday | -2% | 520K |
| Wednesday | -3% | 472K |
| Thursday | -2% | 430K |
| Friday | -3% | 447K |
| Saturday | +2% | 393K |
Formats this account uses
Its own posting mix on the left, and what each of those formats does across every account we track on the right. Only formats where the effect clears our publish test appear here, so an empty row is a format we could not measure rather than one that does nothing.
| Format | This account | Catalog effect | 95% interval | Accounts behind it |
|---|---|---|---|---|
| Image or video | 100% of posts | +111% | +108% to +115% | 34K |
| Outbound link | 100% of posts | -41% | -42% to -40% | 32K |
| Typical length | - | no effect | -2% to -1% | 42K |
- 100% of this account's sampled posts carry an image or video. Across the catalog, posts with an image or video run 111% above the same accounts' other posts.
- 100% of its posts carry a link off X. Across the catalog, posts with an outbound link run 41% below the same accounts' other posts, so a large share of this account's output sits in the weakest bucket we measure.
- Its average post runs 276 characters, which falls in the 180 - 280 characters band. Across the catalog, posts of 180 to 280 characters match the same accounts' other posts almost exactly.
These are catalog-wide differences applied to this account's own posting mix, not a measurement of how each format performs for this account specifically. We keep one median per account, not one per format per account, so the second thing is not something this data can tell you.
Best tweets
- May 28, 20264.0x their median
For Pfizer scientist Shuo, cancer research isn’t just a job—it’s personal. A close friend’s diagnosis shaped how she sees her work and why it matters. Today, she shows up in the lab every day to help move cancer research forward. #CancerResearchMonth Read her story: https://t.co/RaXFRKXYN3
- Aug 18, 20263.4x their median
For more than a century, scientists studied cancer as a caricature of healthy tissue. Spatial transcriptomics is changing that. Now, with the ability to map tumors cell by cell, researchers are rethinking what’s possible in cancer treatment. Read more: https://t.co/13ies7udcU #Oncology #CancerResearch #PrecisionMedicine
- Sep 9, 20262.9x their median
💊 Most people never question whether the medicine in their cabinet is real, but the illicit worldwide counterfeit drugs network is vast, adaptive, and relentless. Here's how we’re helping combat counterfeits, disrupt criminal networks, and protect patients: https://t.co/giN5XWPdss
- Mar 27, 20261.6x their median
Pfizer is advancing research into ATTR-CM, a rare and serious heart condition that is underrecognized and underdiagnosed. Learn why early, accurate diagnosis is so important for patients: https://t.co/5M7xydebvC #ATTRCM #RareDisease #Cardiology https://t.co/MOEq8ochx2
- Jun 25, 20262.9x their median
We dosed the first participants in VESPER-6, the latest Phase 3 trial of our lead investigational medicine in obesity and started a Phase 2b study testing it in combination with an investigational amylin analog. https://t.co/3js6zO6bUD
- Sep 25, 20262.8x their median
Finding participants is one of the biggest challenges in clinical research. #AI has the potential to help researchers identify potentially eligible volunteers faster, improve trial planning, and reduce administrative burden while keeping researchers and patients at the center of every decision. Learn more: https://t.co/9sH8SY52QJ
- Aug 27, 20262.7x their median
250 years of American innovation have shown what’s possible when different minds and ideas come together. As we look to what’s next, Pfizer is proud to build on that spirit of innovation, continuing to advance science and explore what’s possible for the future of medicine. #America250
- Jun 17, 20262.7x their median
Vaccine development is complex, but experience makes the difference. At Pfizer, decades of vaccine innovation are helping our scientists explore new ways to help prevent disease caused by C. difficile infection. Learn more: https://t.co/7vp0Om5Cp1 https://t.co/MCsGfC45qE
- Apr 30, 2026
Cancer research is advancing every day—but prevention and early detection matter, too. This #CancerPrevention & #EarlyDetection Month, we’re sharing how recommended screenings can help detect cancer earlier, when treatments may be most effective. Learn more: https://t.co/VMWdyZcff0 #CancerScreening #GetScreened
- Aug 25, 20262.6x their median
Every dose of medicine you take is the final step in a long journey—one that runs through qualified suppliers, rigorous testing, and continuous monitoring. Pfizer's Bina Nair and Kenya Edmondson walk through what it takes to make sure every dose performs the same way, everywhere: https://t.co/jtyvMBN51X #PharmaManufacturing #QualityAssurance
Ranked by total interactions across everything we have tracked for this account, which is a longer history than the 30-day window the rates above use. The multiple compares each post to this account's own median.
Recurring topics
The most frequent hashtags in the sampled posts. They describe what this account writes about; they are not a performance signal, and the catalog-wide breakdown on the hub shows how little hashtag count moves.
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Reading these numbers
A typical post picks up 22 interactions against 469K followers, an engagement rate of 0.005%. Posts are seen about 3.4K times each, and 0.63% of those impressions turn into an interaction. That is about 0.729% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 0.2 posts a day over the last 30 days, though only 20% of days saw any activity at all. Most posts go out around 14:00 UTC, and Tuesday is the busiest day of the week. Of the 6 posts sampled, 100% carry an image or video and 100% link out. The account's strongest tracked post pulled 88 interactions, about 4.0x its own typical post. Recurring topics include #obesity, #ai, #breastcancerawarenessmonth. Only 6 original posts have been captured so far, fewer than the 8 posts we want behind a median before treating it as settled. Read the figures above as an early measurement of this account, not as a finished profile of it.
- What is Pfizer Inc.'s engagement rate on X?
- Pfizer Inc. (@pfizer) has an engagement rate of 0.005%, based on the median interactions across 6 original posts from the last 30 days against 468,619 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
- Is that a good engagement rate?
- At 0.005%, Pfizer Inc. sits above the 10th percentile of the 205,152 accounts in this comparison. Those comparison accounts are all large ones, because our scanning cadence is weighted towards big accounts, so this is a ranking among peers of similar scale rather than a ranking across X.
- Does @pfizer have real engagement?
- There is not yet enough sample to rank this account against others of its size.
- When does @pfizer post?
- Most posts go out around 14:00 UTC, and Tuesday is its busiest day, at roughly 0.2 posts per day across the measured window.