Steven M. Chaouki, a director at MAIA Biotechnology ($MAIA), made one open market purchase totaling nearly $50,000 on December 22, 2025, ranking 3,005th out of about 5,000 insiders with buys averaging $1.5 million across 3.3 transactions. As President of US Markets at TransUnion ($TRU), he sold $1.23 million in shares over 11 open market transactions, most recently on March 2, 2026, ranking 4,453rd out of nearly 12,000 insiders with sales averaging $8.6 million across 6.4 transactions.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 31, 2026 | MAIA Biotechnology, Inc. | $MAIA | CHAOUKI STEVEN M | Director | A | Stock Options | 27907 | $0.00 | 27,907.0000 | 37,032,307 | 9999.99% | 0.08% |
| March 2, 2026 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | S | Common Stock | 5000 | $76.64 | 94,711.0000 | 197,200,000 | 5.01% | 0.00% |
| Feb. 27, 2026 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | F | Common Stock | 10627 | $78.55 | 99,711.0000 | 197,200,000 | 9.63% | 0.01% |
| Feb. 27, 2026 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | A | Common Stock | 24825 | $0.00 | 110,338.0000 | 197,200,000 | 29.03% | 0.01% |
| Feb. 10, 2026 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | A | Common Stock | 23921 | $0.00 | 85,513.0000 | 197,200,000 | 38.84% | 0.01% |
| Dec. 31, 2025 | MAIA Biotechnology, Inc. | $MAIA | CHAOUKI STEVEN M | Director | A | Options | 24633 | $0.00 | 24,633.0000 | 37,032,307 | 9999.99% | 0.07% |
| Jan. 2, 2026 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | S | Common Stock | 1000 | $85.71 | 61,592.0000 | 197,200,000 | 1.60% | 0.00% |
| Dec. 22, 2025 | MAIA Biotechnology, Inc. | $MAIA | CHAOUKI STEVEN M | Director | P | Common Stock | 40849 | $1.22 | 151,873.0000 | 37,032,307 | 36.79% | 0.11% |
| Dec. 22, 2025 | MAIA Biotechnology, Inc. | $MAIA | CHAOUKI STEVEN M | Director | P | Stock Options | 40849 | $1.36 | 40,849.0000 | 37,032,307 | 9999.99% | 0.11% |
| Dec. 1, 2025 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | S | Common Stock | 1000 | $84.04 | 62,592.0000 | 197,200,000 | 1.57% | 0.00% |
| Nov. 3, 2025 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | S | Common Stock | 1000 | $80.47 | 63,592.0000 | 197,200,000 | 1.55% | 0.00% |
| Oct. 2, 2025 | MAIA Biotechnology, Inc. | $MAIA | CHAOUKI STEVEN M | Director | A | Stock Options | 20946 | $0.00 | 20,946.0000 | 29,587,314 | 9999.99% | 0.07% |
| Oct. 1, 2025 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | S | Common Stock | 1000 | $83.19 | 64,592.0000 | 197,200,000 | 1.52% | 0.00% |
| Sept. 2, 2025 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | S | Common Stock | 1000 | $86.12 | 65,592.0000 | 196,700,000 | 1.50% | 0.00% |
| Aug. 28, 2025 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | F | Common Stock | 5151 | $88.67 | 66,592.0000 | 196,700,000 | 7.18% | 0.00% |
| Aug. 25, 2025 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | F | Common Stock | 1650 | $89.46 | 71,743.0000 | 196,700,000 | 2.25% | 0.00% |
| Aug. 8, 2025 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | S | Common Stock | 1000 | $91.21 | 73,393.0000 | 196,700,000 | 1.34% | 0.00% |
| June 30, 2025 | MAIA Biotechnology, Inc. | $MAIA | CHAOUKI STEVEN M | Director | A | Stock Options | 20865 | $0.00 | 20,865.0000 | 29,587,314 | 9999.99% | 0.07% |
| July 1, 2025 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | S | Common Stock | 1000 | $87.14 | 74,393.0000 | 196,700,000 | 1.33% | 0.00% |
| June 2, 2025 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | S | Common Stock | 1000 | $84.91 | 75,393.0000 | 196,700,000 | 1.31% | 0.00% |
| May 1, 2025 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | S | Common Stock | 1000 | $82.96 | 76,393.0000 | 196,700,000 | 1.29% | 0.00% |
| April 4, 2025 | MAIA Biotechnology, Inc. | $MAIA | CHAOUKI STEVEN M | Director | A | Stock Options | 20667 | $0.00 | 20,667.0000 | 29,587,314 | 9999.99% | 0.07% |
| April 1, 2025 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | S | Common Stock | 1000 | $83.31 | 77,393.0000 | 196,700,000 | 1.28% | 0.00% |
| March 3, 2025 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | S | Common Stock | 1000 | $91.98 | 78,393.0000 | 196,700,000 | 1.26% | 0.00% |
| Feb. 28, 2025 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | A | Common Stock | 19096 | $0.00 | 79,393.0000 | 196,700,000 | 31.67% | 0.01% |
| Feb. 25, 2025 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | F | Common Stock | 1502 | $95.47 | 60,297.0000 | 196,700,000 | 2.43% | 0.00% |
| Feb. 25, 2025 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | A | Common Stock | 3311 | $0.00 | 61,799.0000 | 196,700,000 | 5.66% | 0.00% |
| Feb. 3, 2025 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | S | Common Stock | 1000 | $95.95 | 58,488.0000 | 196,700,000 | 1.68% | 0.00% |
| Dec. 31, 2024 | MAIA Biotechnology, Inc. | $MAIA | CHAOUKI STEVEN M | Director | A | Stock Options | 10225 | $0.00 | 10,225.0000 | 0 | 9999.99% | 0.00% |
| Jan. 2, 2025 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | S | Common Stock | 1000 | $93.60 | 59,488.0000 | 196,700,000 | 1.65% | 0.00% |
| Dec. 2, 2024 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | S | Common Stock | 1500 | $100.73 | 60,488.0000 | 197,000,000 | 2.42% | 0.00% |
| Nov. 8, 2024 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | S | Common Stock | 1500 | $105.66 | 62,988.0000 | 197,000,000 | 2.33% | 0.00% |
| Nov. 8, 2024 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | G | Common Stock | 1000 | $0.00 | 61,988.0000 | 197,000,000 | 1.59% | 0.00% |
| Nov. 1, 2024 | MAIA Biotechnology, Inc. | $MAIA | CHAOUKI STEVEN M | Director | P | Common Stock | 22133 | $2.51 | 111,024.0000 | 0 | 24.90% | 0.00% |
| Nov. 1, 2024 | MAIA Biotechnology, Inc. | $MAIA | CHAOUKI STEVEN M | Director | P | Warrants | 22133 | $2.26 | 22,133.0000 | 0 | 9999.99% | 0.00% |
| Sept. 30, 2024 | MAIA Biotechnology, Inc. | $MAIA | CHAOUKI STEVEN M | Director | A | Stock Options | 7232 | $0.00 | 7,232.0000 | 0 | 9999.99% | 0.00% |
| Sept. 3, 2024 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | S | Common Stock | 1000 | $95.65 | 64,488.0000 | 193,400,000 | 1.53% | 0.00% |
| Aug. 28, 2024 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | F | Common Stock | 2458 | $95.26 | 65,488.0000 | 193,400,000 | 3.62% | 0.00% |
| Aug. 23, 2024 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | F | Common Stock | 1601 | $97.28 | 67,946.0000 | 193,400,000 | 2.30% | 0.00% |
| Aug. 1, 2024 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | S | Common Stock | 1000 | $90.14 | 69,547.0000 | 193,400,000 | 1.42% | 0.00% |
| July 1, 2024 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | S | Common Stock | 1000 | $74.27 | 70,547.0000 | 193,400,000 | 1.40% | 0.00% |
| June 30, 2024 | MAIA Biotechnology, Inc. | $MAIA | CHAOUKI STEVEN M | Director | A | Stock Options | 5728 | $0.00 | 5,728.0000 | 0 | 9999.99% | 0.00% |
| June 3, 2024 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | S | Common Stock | 1776 | $72.00 | 71,547.0000 | 193,400,000 | 2.42% | 0.00% |
| May 1, 2024 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets | S | Common Stock | 1776 | $73.15 | 73,323.0000 | 193,400,000 | 2.36% | 0.00% |
| April 1, 2024 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets & CI | S | Common Stock | 1775 | $81.30 | 75,099.0000 | 193,400,000 | 2.31% | 0.00% |
| March 31, 2024 | MAIA Biotechnology, Inc. | $MAIA | CHAOUKI STEVEN M | Director | A | Stock Options | 9193 | $0.00 | 9,193.0000 | 0 | 9999.99% | 0.00% |
| March 14, 2024 | MAIA Biotechnology, Inc. | $MAIA | CHAOUKI STEVEN M | Director | P | Common Stock | 34641 | $1.17 | 88,891.0000 | 0 | 63.85% | 0.00% |
| March 14, 2024 | MAIA Biotechnology, Inc. | $MAIA | CHAOUKI STEVEN M | Director | P | Warrants | 34641 | $1.30 | 34,641.0000 | 0 | 9999.99% | 0.00% |
| March 5, 2024 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets & CI | S | Common Stock | 1775 | $78.59 | 76,874.0000 | 193,400,000 | 2.26% | 0.00% |
| Feb. 28, 2024 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets & CI | A | Common Stock | 18416 | $0.00 | 78,649.0000 | 193,400,000 | 30.57% | 0.01% |
| Feb. 16, 2024 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets & CI | F | Common Stock | 5027 | $75.07 | 60,233.0000 | 193,400,000 | 7.70% | 0.00% |
| Feb. 16, 2024 | TransUnion | $TRU | CHAOUKI STEVEN M | President, US Markets & CI | A | Common Stock | 8400 | $0.00 | 65,260.0000 | 193,400,000 | 14.77% | 0.00% |
| Dec. 31, 2023 | MAIA Biotechnology, Inc. | $MAIA | CHAOUKI STEVEN M | Director | A | Stock Options | 15418 | $0.00 | 15,418.0000 | 0 | 9999.99% | 0.00% |