While it's still difficult to conclusively say a bot is trading the stock from this limited data, this tick-by-tick data provides much more insight than the previous chart.

Here's what stands out in this data and how it could relate to bot activity, along with caveats:

Observations that might suggest bot activity (but are not definitive proof):

High Frequency and Small Time Gaps:

Many trades occur within seconds of each other (e.g., 16:20:30, 16:20:25, 16:20:24, 16:20:20, 16:20:19, etc.). This rapid execution is a hallmark of algorithmic trading, as humans cannot react and place orders that quickly and consistently.
Even when there are slightly larger gaps, the overall pace of trading is very high.
Repetitive Price Flipping (Bid-Ask Spreading):

Notice the frequent price changes between 1.44 and 1.45, and 1.43 and 1.44 (e.g., 16:20:30: 1.44, then 1.43; 16:20:12: 1.44, then 1.43). This rapid "ping-ponging" between adjacent price levels with small trades is a common tactic for market-making bots that try to profit from the bid-ask spread. They buy at the bid and sell at the ask, even if the spread is only one tick.
Look at 16:19:52 (1.44, -0.01) followed by 16:19:47 (1.45, +0.01). This is a rapid flip.
Many instances of 1.44 becoming 1.45, or 1.45 becoming 1.44, often with "Change" indicating a positive or negative tick.
Consistent Small-to-Medium Trade Sizes:

While there are some larger volumes (e.g., 178,600 at 16:20:04; 665,200 at 16:14:25; 469,700 at 16:14:56), a significant number of trades are in round numbers like 1,000, 2,000, 3,000, 5,000, 10,000, 20,000, 30,000, 50,000. Bots often use standardized lot sizes for their orders.
The "peppered" nature of many small orders (e.g., 100, 200, 500) could be part of an algorithm trying to test liquidity or slowly accumulate/distribute shares.
Instantaneous Price Reversals on Small Volume:

Sometimes you see a price change, and almost immediately a trade happens that reverses it with a relatively small volume (e.g., 16:20:30: 1.44 then 1.43; 16:20:12: 1.44 then 1.43). This could be an algo trying to "walk the book" or test order depth.
16:18:09 shows: 1.44 (-0.01), then 1.45 (+0.01), then 1.44 (-0.01) all in the same second. This is a very strong indicator of rapid algorithmic trading, potentially two bots interacting or one bot quickly reacting to its own or others' orders.
Lack of "Human" Hesitation:

The continuous flow of trades with minimal breaks, especially around active periods, is less typical of purely human trading, which tends to be more sporadic and reactive to visible events.
Caveats and Why it's still not 100% conclusive:

Market Making: This type of rapid, small-tick trading is characteristic of legitimate market-making operations (which are often automated/bot-driven). Market makers provide liquidity by continuously quoting both buy and sell prices.
Arbitrage: Bots are also used for arbitrage, exploiting tiny price differences across different exchanges or assets.
Retail Bots: Even some retail traders use automated systems or "expert advisors" that can generate similar patterns, though usually on a smaller scale than institutional HFT.
News/Events: While not visible here, a sudden piece of news could trigger a flurry of rapid human and algorithmic trading.
"Spoofing" and "Layering" are not directly observable: You can't see unexecuted orders or order cancellations in this data, which are key characteristics of more manipulative bot activities.
Conclusion based on the provided tick data:

The high frequency, rapid price flipping (especially 1.44/1.45 or 1.43/1.44), and consistent small-to-medium trade sizes occurring in rapid succession strongly suggest that algorithmic trading (i.e., bots) is actively participating in the trading of this stock.

It's highly probable that market-making algorithms, or other forms of high-frequency trading bots, are contributing significantly to the observed order flow and price movements. While human traders are likely still involved, the rapid, machine-like execution patterns point to automated systems driving much of the immediate activity.