SEC Insider Transactions from O'Brien Dana C..

Last updated: 2026-03-14 11:48 UTC | Total transactions: 14

O'Brien Dana C., a director at Sterling Infrastructure, Inc. ($STRL), sold shares on the open market four times over the past year, totaling $3.7 million. Her most recent sale occurred on February 9, 2026. These sales rank her 2,358th among nearly 12,000 insiders by value sold, below the average of $8.6 million across 6.4 transactions. She made no open market purchases in this period.

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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
Feb. 9, 2026 STERLING INFRASTRUCTURE, INC. $STRL O'Brien Dana C. Director S Common Stock 2000 $410.00 11,498.0000 30,960,000 14.82% 0.01%
Feb. 6, 2026 STERLING INFRASTRUCTURE, INC. $STRL O'Brien Dana C. Director S Common Stock 1000 $400.00 13,498.0000 30,960,000 6.90% 0.00%
Feb. 6, 2026 STERLING INFRASTRUCTURE, INC. $STRL O'Brien Dana C. Director S Common Stock 1000 $390.00 14,498.0000 30,960,000 6.45% 0.00%
Nov. 12, 2025 STERLING INFRASTRUCTURE, INC. $STRL O'Brien Dana C. Director G Common Stock 1000 $0.00 15,498.0000 30,960,000 6.06% 0.00%
June 16, 2025 STERLING INFRASTRUCTURE, INC. $STRL O'Brien Dana C. Director S Common Stock 10154 $206.58 16,498.0000 31,146,000 38.10% 0.03%
May 8, 2025 STERLING INFRASTRUCTURE, INC. $STRL O'Brien Dana C. Director A Common Stock 751 $0.00 26,652.0000 31,146,000 2.90% 0.00%
Feb. 20, 2025 OLIN Corp $OLN O'Brien Dana C. SVP, Chief Legal Officer A Restricted Stock Units 17379 $0.00 17,379.0000 119,500,000 9999.99% 0.01%
Feb. 19, 2025 OLIN Corp $OLN O'Brien Dana C. SVP, Chief Legal Officer A Common Stock $1 par value 2098 $0.00 2,098.0000 119,500,000 9999.99% 0.00%
Dec. 18, 2024 STERLING INFRASTRUCTURE, INC. $STRL O'Brien Dana C. Director S Common Stock 2000 $175.89 25,901.0000 31,184,000 7.17% 0.01%
June 24, 2024 STERLING INFRASTRUCTURE, INC. $STRL O'Brien Dana C. Director G Common Stock 2716 $0.00 27,901.0000 31,208,000 8.87% 0.01%
May 9, 2024 STERLING INFRASTRUCTURE, INC. $STRL O'Brien Dana C. Director A Common Stock 1074 $0.00 30,617.0000 31,208,000 3.64% 0.00%
Feb. 22, 2024 OLIN Corp $OLN O'Brien Dana C. Senior VP, GC & Secretary A Employee Stock Options (Right to Buy) 22756 $0.00 22,756.0000 128,800,000 9999.99% 0.02%
May 3, 2023 STERLING INFRASTRUCTURE, INC. $STRL O'Brien Dana C. Director A Common Stock 3353 $40.26 29,543.0000 30,564,000 12.80% 0.01%
Feb. 22, 2023 OLIN Corp $OLN O'Brien Dana C. Senior VP, GC & Secretary A Employee Stock Options (Right to Buy) 17575 $0.00 17,575.0000 148,500,000 9999.99% 0.01%