SEC Insider Transactions from Yamamoto Sumitaka.

Last updated: 2026-03-14 11:35 UTC | Total transactions: 22

Yamamoto Sumitaka has filed 22 insider transactions across 1 company since June 2023.

Most recent transaction: a sale of 7110 shares of HeartCore Enterprises, Inc. ($HTCR) on June 15, 2023.

Activity breakdown: 1 open-market purchase and 20 sales.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
June 15, 2023 HeartCore Enterprises, Inc. $HTCR Yamamoto Sumitaka Chairman, CEO & President S Common Stock 7110 $1.47 10,684,473.0000 0 0.07% 0.00%
Oct. 1, 2024 HeartCore Enterprises, Inc. $HTCR Yamamoto Sumitaka Chairman, CEO & President A Common Stock 45938 $0.00 10,677,363.0000 20,864,144 0.43% 0.22%
Nov. 15, 2023 HeartCore Enterprises, Inc. $HTCR Yamamoto Sumitaka Chairman, CEO & President P Common Stock 10012 $0.51 10,607,159.0000 0 0.09% 0.00%
June 22, 2023 HeartCore Enterprises, Inc. $HTCR Yamamoto Sumitaka Chairman, CEO & President S Common Stock 14913 $1.61 10,610,049.0000 0 0.14% 0.00%
June 23, 2023 HeartCore Enterprises, Inc. $HTCR Yamamoto Sumitaka Chairman, CEO & President S Common Stock 7900 $1.61 10,602,149.0000 0 0.07% 0.00%
June 30, 2023 HeartCore Enterprises, Inc. $HTCR Yamamoto Sumitaka Chairman, CEO & President S Common Stock 2588 $1.44 10,599,561.0000 0 0.02% 0.00%
July 3, 2023 HeartCore Enterprises, Inc. $HTCR Yamamoto Sumitaka Chairman, CEO & President S Common Stock 2414 $1.43 10,597,147.0000 0 0.02% 0.00%
June 30, 2023 HeartCore Enterprises, Inc. $HTCR Yamamoto Sumitaka Chairman, CEO & President S Common Stock 17340 $1.46 10,624,962.0000 0 0.16% 0.00%
June 29, 2023 HeartCore Enterprises, Inc. $HTCR Yamamoto Sumitaka Chairman, CEO & President S Common Stock 17868 $1.57 10,642,302.0000 0 0.17% 0.00%
June 27, 2023 HeartCore Enterprises, Inc. $HTCR Yamamoto Sumitaka Chairman, CEO & President S Common Stock 7333 $1.60 10,660,170.0000 0 0.07% 0.00%
June 26, 2023 HeartCore Enterprises, Inc. $HTCR Yamamoto Sumitaka Chairman, CEO & President S Common Stock 37970 $1.61 10,667,503.0000 0 0.35% 0.00%
June 21, 2023 HeartCore Enterprises, Inc. $HTCR Yamamoto Sumitaka Chairman, CEO & President S Common Stock 13745 $1.57 10,705,473.0000 0 0.13% 0.00%
June 16, 2023 HeartCore Enterprises, Inc. $HTCR Yamamoto Sumitaka Chairman, CEO & President S Common Stock 8137 $1.48 10,719,218.0000 0 0.08% 0.00%
June 20, 2023 HeartCore Enterprises, Inc. $HTCR Yamamoto Sumitaka Chairman, CEO & President S Common Stock 10461 $1.50 10,708,757.0000 0 0.10% 0.00%
June 14, 2023 HeartCore Enterprises, Inc. $HTCR Yamamoto Sumitaka Chairman, CEO & President S Common Stock 13545 $1.49 10,727,355.0000 0 0.13% 0.00%
June 9, 2023 HeartCore Enterprises, Inc. $HTCR Yamamoto Sumitaka Chairman, CEO & President S Common Stock 74826 $1.37 10,824,426.0000 0 0.69% 0.00%
June 12, 2023 HeartCore Enterprises, Inc. $HTCR Yamamoto Sumitaka Chairman, CEO & President S Common Stock 75000 $1.32 10,749,426.0000 0 0.69% 0.00%
June 13, 2023 HeartCore Enterprises, Inc. $HTCR Yamamoto Sumitaka Chairman, CEO & President S Common Stock 8526 $1.39 10,740,900.0000 0 0.08% 0.00%
June 6, 2023 HeartCore Enterprises, Inc. $HTCR Yamamoto Sumitaka Chairman, CEO & President S Common Stock 26000 $1.42 10,934,805.0000 0 0.24% 0.00%
June 7, 2023 HeartCore Enterprises, Inc. $HTCR Yamamoto Sumitaka Chairman, CEO & President S Common Stock 18528 $1.46 10,916,277.0000 0 0.17% 0.00%
June 8, 2023 HeartCore Enterprises, Inc. $HTCR Yamamoto Sumitaka Chairman, CEO & President S Common Stock 17025 $1.52 10,899,252.0000 0 0.16% 0.00%
June 5, 2023 HeartCore Enterprises, Inc. $HTCR Yamamoto Sumitaka Chairman, CEO & President S Common Stock 34727 $1.44 10,960,805.0000 0 0.32% 0.00%