SEC Insider Transactions from NEIL GARRY ARTHUR.

Last updated: 2026-03-31 21:08 UTC | Total transactions: 16

NEIL GARRY ARTHUR has filed 16 insider transactions across 2 companies since February 2023.

Most recent transaction: a option exercise of 64866 shares of Avalo Therapeutics, Inc. ($AVTX) on March 28, 2026.

Activity breakdown: 1 open-market purchase and 0 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
March 28, 2026 Avalo Therapeutics, Inc. $AVTX NEIL GARRY ARTHUR Chief Executive Officer M Restricted Stock Units 64866 $0.00 64,867.0000 18,133,968 50.00% 0.36%
March 28, 2026 Avalo Therapeutics, Inc. $AVTX NEIL GARRY ARTHUR Chief Executive Officer F Common Stock 21892 $13.89 90,114.0000 18,133,968 19.55% 0.12%
March 28, 2026 Avalo Therapeutics, Inc. $AVTX NEIL GARRY ARTHUR Chief Executive Officer M Common Stock 64866 $0.00 112,006.0000 18,133,968 137.60% 0.36%
Feb. 26, 2026 Avalo Therapeutics, Inc. $AVTX NEIL GARRY ARTHUR Chief Executive Officer A Stock Option (Right to Buy) 286000 $0.00 286,000.0000 18,133,968 9999.99% 1.58%
June 5, 2025 Celldex Therapeutics, Inc. $CLDX NEIL GARRY ARTHUR Not found A Non-Qualified Stock Option (right to buy) 16500 $0.00 16,500.0000 66,383 9999.99% 24.86%
March 28, 2025 Avalo Therapeutics, Inc. $AVTX NEIL GARRY ARTHUR Chief Executive Officer M Restricted Stock Units 64867 $0.00 129,733.0000 10,671,934 100.00% 0.61%
March 28, 2025 Avalo Therapeutics, Inc. $AVTX NEIL GARRY ARTHUR Chief Executive Officer M Common Stock 64867 $0.00 64,927.0000 10,671,934 9999.99% 0.61%
March 28, 2025 Avalo Therapeutics, Inc. $AVTX NEIL GARRY ARTHUR Chief Executive Officer F Common Stock 17787 $8.46 47,140.0000 10,671,934 27.40% 0.17%
Jan. 28, 2025 Avalo Therapeutics, Inc. $AVTX NEIL GARRY ARTHUR CEO and Chairman of the Board A Stock Option (Right to Buy) 411000 $0.00 411,000.0000 0 9999.99% 0.00%
Aug. 13, 2024 Avalo Therapeutics, Inc. $AVTX NEIL GARRY ARTHUR CEO and Chairman of the Board A Stock Option (Right to Buy) 500400 $0.00 500,400.0000 0 9999.99% 0.00%
Aug. 13, 2024 Avalo Therapeutics, Inc. $AVTX NEIL GARRY ARTHUR CEO and Chairman of the Board A Restricted Stock Units 194600 $0.00 194,600.0000 0 9999.99% 0.00%
June 13, 2024 Celldex Therapeutics, Inc. $CLDX NEIL GARRY ARTHUR Not found A Non-Qualified Stock Option (right to buy) 16500 $0.00 16,500.0000 58,871 9999.99% 28.03%
June 15, 2023 Celldex Therapeutics, Inc. $CLDX NEIL GARRY ARTHUR Not found A Non-Qualified Stock Option (right to buy) 11300 $0.00 11,300.0000 47,214 9999.99% 23.93%
June 9, 2023 Avalo Therapeutics, Inc. $AVTX NEIL GARRY ARTHUR CEO and Chairman of the Board P Common Stock 4000 $3.42 13,220.0000 0 43.38% 0.00%
May 15, 2023 Avalo Therapeutics, Inc. $AVTX NEIL GARRY ARTHUR CEO and Chairman of the Board A Stock Option (Right to Buy) 100000 $0.00 100,000.0000 0 9999.99% 0.00%
Feb. 13, 2023 Avalo Therapeutics, Inc. $AVTX NEIL GARRY ARTHUR CEO and Chairman of the Board A Stock Option (Right to Buy) 100000 $0.00 100,000.0000 0 9999.99% 0.00%