According to ChainCatcher, according to Lookonchain monitoring, 9 US Bitcoin spot ETFs reduced their holdings by 2,297 BTC today, including:

Fidelity reduced its holdings by 1,596 BTC (-$106.3 million), and currently holds 172,753 BTC ($11.5 billion).

Grayscale reduced its holdings by 12 BTC (-$770,000), and currently holds 282,148 BTC ($18.8 billion).