To be honest, recently there have been many screenshots of "coincidental transfers" on the chain: just happening to enter the same address at the same second, and also just happening to withdraw to a new wallet from the exchange... It looks like a big player is controlling the market, but actually many of these can be broken down into quite ordinary patterns: batch consolidations, changing addresses to avoid phishing, a bunch of bots transferring back and forth on cross-chain bridges, or even the same script running.

If you connect the timing, gas, and whether it's the same intermediary contract, it often doesn't seem so mysterious.
I'm not sure which times are truly "inside information," but now the attention shifts so quickly with Meme + celebrity calls, that when newcomers get excited, they tend to catch the last wave... Anyway, I’ve learned to first clarify the transfer chain before deciding whether to get itchy fingers.