81.49 BTC across 4 transactions over 44m just moved within addresses publicly attributed to binance reserve wallets BTC (attribution: https://www.binance.com/en/blog/community/our-commitment-to-transparency-2895840147147652626). The attribution is public documentation, not a SENTINEL measurement.
According to SENTINEL event ux_1x7olue (source mempool.space): BINANCE: 81.49 BTC MOVED. Verify: https://sentinelbtc.com/api/v1/events/unusual/ux_1x7olue