SEC Insider Transactions from Thomas Karen S..

Last updated: 2026-03-14 11:19 UTC | Total transactions: 12

Thomas Karen S. has filed 12 insider transactions across 1 company since September 2023.

Most recent transaction: a option exercise of 3314 shares of A10 Networks, Inc. ($ATEN) on December 26, 2024.

Activity breakdown: 0 open-market purchases and 1 sale.

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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
Dec. 26, 2024 A10 Networks, Inc. $ATEN Thomas Karen S. EVP, Worldwide Sales and Mkt M Common Stock 3314 $0.00 28,613.0000 75,236,000 13.10% 0.00%
Dec. 26, 2024 A10 Networks, Inc. $ATEN Thomas Karen S. EVP, Worldwide Sales and Mkt F Common Stock 461 $18.81 28,152.0000 75,236,000 1.61% 0.00%
Dec. 26, 2024 A10 Networks, Inc. $ATEN Thomas Karen S. EVP, Worldwide Sales and Mkt M Performance-based Restricted Stock Units 3314 $0.00 3,313.0000 75,236,000 50.01% 0.00%
Nov. 12, 2024 A10 Networks, Inc. $ATEN Thomas Karen S. EVP, Worldwide Sales and Mkt S Common Stock 6162 $16.70 23,799.0000 75,236,000 20.57% 0.01%
Sept. 6, 2024 A10 Networks, Inc. $ATEN Thomas Karen S. EVP, Worldwide Sales and Mkt F Common Stock 1729 $13.45 30,030.0000 75,550,000 5.44% 0.00%
Sept. 6, 2024 A10 Networks, Inc. $ATEN Thomas Karen S. EVP, Worldwide Sales and Mkt F Common Stock 69 $13.45 29,961.0000 75,550,000 0.23% 0.00%
Jan. 30, 2024 A10 Networks, Inc. $ATEN Thomas Karen S. EVP, Worldwide Sales and Mkt A Common Stock 4419 $0.00 30,259.0000 75,550,000 17.10% 0.01%
Jan. 30, 2024 A10 Networks, Inc. $ATEN Thomas Karen S. EVP, Worldwide Sales and Mkt A Performance-based Restricted Stock Units 6627 $0.00 6,627.0000 75,550,000 9999.99% 0.01%
Sept. 21, 2023 A10 Networks, Inc. $ATEN Thomas Karen S. EVP, Worldwide Sales and Mkt A Common Stock 1000 $0.00 25,840.0000 77,751,000 4.03% 0.00%
Sept. 21, 2023 A10 Networks, Inc. $ATEN Thomas Karen S. EVP, Worldwide Sales and Mkt A Performance-based Restricted Stock Units 1000 $0.00 0.0000 77,751,000 0.00% 0.00%
Sept. 7, 2023 A10 Networks, Inc. $ATEN Thomas Karen S. EVP, Worldwide Sales and Mkt A Common Stock 24840 $0.00 24,840.0000 77,751,000 9999.99% 0.03%
Sept. 7, 2023 A10 Networks, Inc. $ATEN Thomas Karen S. EVP, Worldwide Sales and Mkt A Performance-based Restricted Stock Units 24840 $0.00 0.0000 77,751,000 0.00% 0.03%