Brian J Radecki
Insider
First SEC filing: March 23, 2021 · Latest: March 23, 2021
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| May 27, 2026 | ACVA | A | 27,500 | · | · | 107,708 Direct | +34.29% | Acquired | (price as of 2026-10-02) |
| May 28, 2025 | ACVA | A | 9,868 | · | · | 80,208 Direct | +14.03% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2024 | ACVA | C | 61,101 | · | · | 70,340 Direct | +661.34% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2024 | ACVA | C | 40,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 31, 2024 | ACVA | C | 21,101 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 29, 2024 | ACVA | A | 9,239 | · | · | 9,239 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 11, 2023 | MDAIW | M | 25,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Sept. 11, 2023 | MDAIW | M | 25,000 | · | · | 25,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 2, 2022 | UP | A | 62,950 | · | · | 167,340 Direct | +60.30% | Acquired | (price as of 2026-10-02) |
| Sept. 17, 2021 | UP | A | 17,500 | · | · | 104,390 Direct | +20.14% | Acquired | (price as of 2026-10-02) |
| July 13, 2021 | UP | A | 57,549 | · | · | 57,549 Direct | · | Acquired | (price as of 2026-10-02) |
| July 13, 2021 | UP | A | 69,058 | · | · | 69,058 Direct | · | Acquired | (price as of 2026-10-02) |
| July 13, 2021 | UP | A | 57,549 | · | · | 57,549 Direct | · | Acquired | (price as of 2026-10-02) |
| July 13, 2021 | UP | A | 23,019 | · | · | 23,019 Direct | · | Acquired | (price as of 2026-10-02) |
| July 13, 2021 | UP | P | 50,000 | · | · | 86,890 Direct | +135.54% | Acquired | (price as of 2026-10-02) |
| July 13, 2021 | UP | A | 36,890 | · | · | 86,890 Direct | +73.78% | Acquired | (price as of 2026-10-02) |
| March 26, 2021 | ACVA | C | 21,101 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 26, 2021 | ACVA | J | 21,101 | · | · | 21,101 Direct | · | Acquired | (price as of 2026-10-02) |
| March 26, 2021 | ACVA | J | 40,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 26, 2021 | ACVA | J | 40,000 | · | · | 40,000 Direct | · | Acquired | (price as of 2026-10-02) |
| March 23, 2021 | ACVA | A | 40,000 | · | · | 40,000 Direct | · | Acquired | (price as of 2026-10-02) |
| March 13, 2015 | CSGP | M | 4,500 | · | · | 4,500 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| March 13, 2015 | CSGP | S | 4,500 | $192.53 | $866,385 | 41,473 Direct | -9.79% | Disposed | 42.2% (price as of 2026-10-02) |
| March 13, 2015 | CSGP | M | 4,500 | $102.16 | $459,720 | 45,973 Direct | +10.85% | Acquired | 168.0% (price as of 2026-10-02) |
| March 11, 2015 | CSGP | F | 1,374 | $191.03 | $262,475 | 41,473 Direct | -3.21% | Disposed | 43.3% (price as of 2026-10-02) |
| March 5, 2015 | CSGP | A | 14,000 | · | · | 14,000 Direct | · | Acquired | (price as of 2026-10-02) |
| March 5, 2015 | CSGP | A | 13,240 | · | · | 42,847 Direct | +44.72% | Acquired | (price as of 2026-10-02) |
| March 3, 2015 | CSGP | G | 650 | · | · | 29,607 Direct | -2.15% | Disposed | (price as of 2026-10-02) |
| March 2, 2015 | CSGP | M | 4,500 | · | · | 9,000 Direct | +100.00% | Acquired | (price as of 2026-10-02) |
| March 2, 2015 | CSGP | M | 4,634 | · | · | 0 Direct | · | Acquired | (price as of 2026-10-02) |
| March 2, 2015 | CSGP | S | 14,634 | $197.14 | $2,884,947 | 30,257 Direct | -32.60% | Disposed | 38.9% (price as of 2026-10-02) |
| March 2, 2015 | CSGP | M | 4,500 | $102.16 | $459,720 | 44,891 Direct | +11.14% | Acquired | 168.0% (price as of 2026-10-02) |
| March 2, 2015 | CSGP | M | 4,634 | $58.95 | $273,174 | 40,391 Direct | +12.96% | Acquired | 364.5% (price as of 2026-10-02) |
| Feb. 28, 2015 | CSGP | F | 617 | $199.16 | $122,882 | 35,757 Direct | -1.70% | Disposed | 37.5% (price as of 2026-10-02) |
| Feb. 21, 2015 | CSGP | F | 1,211 | $191.24 | $231,592 | 36,374 Direct | -3.22% | Disposed | 43.2% (price as of 2026-10-02) |
| March 11, 2014 | CSGP | F | 1,374 | $207.81 | $285,531 | 37,585 Direct | -3.53% | Disposed | 31.8% (price as of 2026-10-02) |
| March 7, 2014 | CSGP | M | 4,633 | · | · | 4,634 Direct | -49.99% | Disposed | (price as of 2026-10-02) |
| March 7, 2014 | CSGP | M | 4,667 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 7, 2014 | CSGP | S | 11,966 | $209.12 | $2,502,330 | 38,959 Direct | -23.50% | Disposed | 30.9% (price as of 2026-10-02) |
| March 7, 2014 | CSGP | S | 9,300 | $208.45 | $1,938,585 | 50,925 Direct | -15.44% | Disposed | 31.4% (price as of 2026-10-02) |
| March 7, 2014 | CSGP | M | 4,633 | $58.95 | $273,115 | 60,225 Direct | +8.33% | Acquired | 364.5% (price as of 2026-10-02) |
| March 7, 2014 | CSGP | M | 4,667 | $57.16 | $266,766 | 55,592 Direct | +9.16% | Acquired | 379.0% (price as of 2026-10-02) |
| March 4, 2014 | CSGP | F | 1,001 | $214.00 | $214,214 | 50,925 Direct | -1.93% | Disposed | 27.9% (price as of 2026-10-02) |
| Feb. 28, 2014 | CSGP | A | 11,100 | · | · | 11,100 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 28, 2014 | CSGP | A | 8,220 | · | · | 51,926 Direct | +18.81% | Acquired | (price as of 2026-10-02) |
| Feb. 28, 2014 | CSGP | F | 17,105 | $201.04 | $3,438,789 | 43,706 Direct | -28.13% | Disposed | 36.2% (price as of 2026-10-02) |
| Feb. 21, 2014 | CSGP | F | 1,210 | $197.97 | $239,544 | 60,811 Direct | -1.95% | Disposed | 38.3% (price as of 2026-10-02) |
| Dec. 24, 2013 | CSGP | G | 150 | · | · | 62,021 Direct | -0.24% | Disposed | (price as of 2026-10-02) |
| Nov. 22, 2013 | CSGP | S | 4,000 | $181.02 | $724,080 | 62,171 Direct | -6.04% | Disposed | 51.3% (price as of 2026-10-02) |
| Nov. 21, 2013 | CSGP | S | 2,500 | $180.91 | $452,275 | 66,171 Direct | -3.64% | Disposed | 51.3% (price as of 2026-10-02) |
| Nov. 20, 2013 | CSGP | S | 2,000 | $177.23 | $354,460 | 68,671 Direct | -2.83% | Disposed | 54.5% (price as of 2026-10-02) |
| July 30, 2013 | CSGP | M | 5,634 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| July 30, 2013 | CSGP | M | 4,633 | · | · | 9,267 Direct | -33.33% | Disposed | (price as of 2026-10-02) |
| July 30, 2013 | CSGP | S | 10,267 | $157.00 | $1,611,919 | 70,671 Direct | -12.69% | Disposed | 74.4% (price as of 2026-10-02) |
| July 30, 2013 | CSGP | M | 5,634 | $42.29 | $238,262 | 80,938 Direct | +7.48% | Acquired | 547.4% (price as of 2026-10-02) |
| July 30, 2013 | CSGP | M | 4,633 | $58.95 | $273,115 | 75,304 Direct | +6.56% | Acquired | 364.5% (price as of 2026-10-02) |
| March 12, 2013 | CSGP | F | 1,265 | $101.06 | $127,841 | 70,671 Direct | -1.76% | Disposed | 170.9% (price as of 2026-10-02) |
| March 11, 2013 | CSGP | A | 13,500 | · | · | 13,500 Direct | · | Acquired | (price as of 2026-10-02) |
| March 11, 2013 | CSGP | A | 8,100 | · | · | 71,936 Direct | +12.69% | Acquired | (price as of 2026-10-02) |
| March 5, 2013 | CSGP | M | 9,333 | · | · | 4,667 Direct | -66.66% | Disposed | (price as of 2026-10-02) |
| March 5, 2013 | CSGP | M | 11,266 | · | · | 5,634 Direct | -66.66% | Disposed | (price as of 2026-10-02) |
| March 5, 2013 | CSGP | S | 9,333 | $104.00 | $970,632 | 63,836 Direct | -12.76% | Disposed | 163.3% (price as of 2026-10-02) |
| March 5, 2013 | CSGP | M | 9,333 | $57.16 | $533,474 | 73,169 Direct | +14.62% | Acquired | 379.0% (price as of 2026-10-02) |
| March 5, 2013 | CSGP | S | 11,266 | $103.00 | $1,160,398 | 63,836 Direct | -15.00% | Disposed | 165.8% (price as of 2026-10-02) |
| March 5, 2013 | CSGP | M | 11,266 | $42.29 | $476,439 | 75,102 Direct | +17.65% | Acquired | 547.4% (price as of 2026-10-02) |
| March 4, 2013 | CSGP | F | 695 | $103.17 | $71,703 | 63,836 Direct | -1.08% | Disposed | 165.4% (price as of 2026-10-02) |
| Feb. 21, 2013 | CSGP | F | 1,186 | $95.90 | $113,737 | 64,531 Direct | -1.80% | Disposed | 185.5% (price as of 2026-10-02) |
| Dec. 31, 2012 | CSGP | M | 10,500 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 31, 2012 | CSGP | M | 3,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 31, 2012 | CSGP | M | 4,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 31, 2012 | CSGP | S | 17,500 | $89.00 | $1,557,500 | 65,717 Direct | -21.03% | Disposed | 207.6% (price as of 2026-10-02) |
| Dec. 31, 2012 | CSGP | M | 10,500 | $43.99 | $461,895 | 83,217 Direct | +14.44% | Acquired | 522.4% (price as of 2026-10-02) |
| Dec. 31, 2012 | CSGP | M | 3,000 | $54.12 | $162,360 | 72,717 Direct | +4.30% | Acquired | 405.9% (price as of 2026-10-02) |
| Dec. 31, 2012 | CSGP | M | 4,000 | $48.25 | $193,000 | 69,717 Direct | +6.09% | Acquired | 467.5% (price as of 2026-10-02) |
| Dec. 1, 2012 | CSGP | A | 18 | · | · | 65,717 Direct | +0.03% | Acquired | (price as of 2026-10-02) |
| May 23, 2012 | CSGP | S | 4,509 | $71.75 | $323,521 | 65,699 Direct | -6.42% | Disposed | 281.6% (price as of 2026-10-02) |
| May 22, 2012 | CSGP | M | 19,500 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 22, 2012 | CSGP | S | 1,253 | $71.50 | $89,590 | 70,208 Direct | -1.75% | Disposed | 282.9% (price as of 2026-10-02) |
| May 22, 2012 | CSGP | S | 19,500 | $71.00 | $1,384,500 | 71,461 Direct | -21.44% | Disposed | 285.6% (price as of 2026-10-02) |
| May 22, 2012 | CSGP | M | 19,500 | $25.00 | $487,500 | 90,961 Direct | +27.29% | Acquired | 995.2% (price as of 2026-10-02) |
| May 11, 2012 | CSGP | M | 60 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 11, 2012 | CSGP | S | 60 | $70.50 | $4,230 | 71,461 Direct | -0.08% | Disposed | 288.4% (price as of 2026-10-02) |
| May 11, 2012 | CSGP | M | 60 | $39.81 | $2,389 | 71,521 Direct | +0.08% | Acquired | 587.8% (price as of 2026-10-02) |
| May 7, 2012 | CSGP | M | 5,940 | · | · | 60 Direct | -99.00% | Disposed | (price as of 2026-10-02) |
| May 7, 2012 | CSGP | M | 1,875 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 7, 2012 | CSGP | S | 7,815 | $70.50 | $550,958 | 71,461 Direct | -9.86% | Disposed | 288.4% (price as of 2026-10-02) |
| May 7, 2012 | CSGP | M | 5,940 | $39.81 | $236,471 | 79,276 Direct | +8.10% | Acquired | 587.8% (price as of 2026-10-02) |
| May 7, 2012 | CSGP | M | 1,875 | $18.28 | $34,275 | 73,336 Direct | +2.62% | Acquired | 1397.8% (price as of 2026-10-02) |
| May 4, 2012 | CSGP | S | 2,711 | $70.78 | $191,885 | 71,461 Direct | -3.66% | Disposed | 286.8% (price as of 2026-10-02) |
| March 12, 2012 | CSGP | F | 866 | $63.12 | $54,662 | 74,172 Direct | -1.15% | Disposed | 333.8% (price as of 2026-10-02) |
| March 4, 2012 | CSGP | F | 672 | $58.92 | $39,594 | 75,038 Direct | -0.89% | Disposed | 364.7% (price as of 2026-10-02) |
| March 2, 2012 | CSGP | F | 820 | $58.92 | $48,314 | 75,710 Direct | -1.07% | Disposed | 364.7% (price as of 2026-10-02) |
| Feb. 21, 2012 | CSGP | A | 13,900 | · | · | 13,900 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 21, 2012 | CSGP | A | 44,000 | · | · | 76,530 Direct | +135.26% | Acquired | (price as of 2026-10-02) |
| June 5, 2011 | CSGP | F | 2,618 | $58.66 | $153,572 | 32,530 Direct | -7.45% | Disposed | 366.8% (price as of 2026-10-02) |
| May 28, 2011 | CSGP | F | 66 | $63.16 | $4,169 | 35,148 Direct | -0.19% | Disposed | 333.5% (price as of 2026-10-02) |
| March 12, 2011 | CSGP | F | 847 | $56.21 | $47,610 | 35,214 Direct | -2.35% | Disposed | 387.1% (price as of 2026-10-02) |
| March 4, 2011 | CSGP | A | 14,000 | · | · | 14,000 Direct | · | Acquired | (price as of 2026-10-02) |
| March 4, 2011 | CSGP | A | 5,900 | · | · | 36,061 Direct | +19.56% | Acquired | (price as of 2026-10-02) |
| March 2, 2011 | CSGP | F | 802 | $56.31 | $45,161 | 30,161 Direct | -2.59% | Disposed | 386.2% (price as of 2026-10-02) |
Showing latest 100 of 124 transactions
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Dec. 31, 2024 | ACVA | Class B Common Stock | Class A Common Stock | · | · | 40,000 | Disposed |
| Dec. 31, 2024 | ACVA | Class B Common Stock | Class A Common Stock | · | · | 21,101 | Disposed |
| Sept. 11, 2023 | MDAIW | Class B Common Stock | Class A Common Stock | · | · | 25,000 | Disposed |
| July 13, 2021 | UP | Profits Interests (Series 9) [F5] | Class A Common Stock, par value $0.0001 per share | · | · | 57,549 | Acquired |
| July 13, 2021 | UP | Profits Interests (Series 7) [F5] | Class A Common Stock, par value $0.0001 per share | · | · | 69,058 | Acquired |
| July 13, 2021 | UP | Stock Option (right to buy) | Class A Common Stock, par value $0.0001 per share | $7.56 | · | 57,549 | Acquired |
| July 13, 2021 | UP | Stock Option (right to buy) | Class A Common Stock, par value $0.0001 per share | $6.50 | · | 23,019 | Acquired |
| March 26, 2021 | ACVA | Series E-1 Preferred Stock | Class B Common Stock [F2] | · | · | 21,101 | Disposed |
| March 26, 2021 | ACVA | Class B Common Stock | Class A Common Stock | · | · | 21,101 | Acquired |
| March 26, 2021 | ACVA | Restricted Stock Units | Common Stock [F5] | · | · | 40,000 | Disposed |
| March 26, 2021 | ACVA | Restricted Stock Units | Class B Common Stock | · | · | 40,000 | Acquired |
| March 23, 2021 | ACVA | Restricted Stock Units | Common Stock | · | · | 40,000 | Acquired |
| March 13, 2015 | CSGP | Option to Acquire Common Stock | Common Stock | $102.16 | March 10, 2023 | 4,500 | Disposed |
| March 5, 2015 | CSGP | Option to Acquire Common Stock | Common Stock | $193.69 | March 4, 2025 | 14,000 | Acquired |
| March 2, 2015 | CSGP | Option to Acquire Common Stock | Common Stock | $102.16 | March 10, 2023 | 4,500 | Acquired |
| March 2, 2015 | CSGP | Option to Acquire Common Stock | Common Stock | $58.95 | Feb. 20, 2022 | 4,634 | Acquired |
| March 7, 2014 | CSGP | Option to Acquire Common Stock | Common Stock | $58.95 | Feb. 20, 2022 | 4,633 | Disposed |
| March 7, 2014 | CSGP | Option to Acquire Common Stock | Common Stock | $57.16 | March 3, 2021 | 4,667 | Disposed |
| Feb. 28, 2014 | CSGP | Option to Acquire Common Stock | Common Stock | $201.04 | Feb. 27, 2024 | 11,100 | Acquired |
| July 30, 2013 | CSGP | Option to Acquire Common Stock | Common Stock | $42.29 | March 11, 2020 | 5,634 | Disposed |
| July 30, 2013 | CSGP | Option to Acquire Common Stock | Common Stock | $58.95 | Feb. 20, 2022 | 4,633 | Disposed |
| March 11, 2013 | CSGP | Option to Acquire Common Stock | Common Stock | $102.16 | March 10, 2023 | 13,500 | Acquired |
| March 5, 2013 | CSGP | Option to Acquire Common Stock | Common Stock | $57.16 | March 3, 2021 | 9,333 | Disposed |
| March 5, 2013 | CSGP | Option to Acquire Common Stock | Common Stock | $42.29 | March 11, 2020 | 11,266 | Disposed |
| Dec. 31, 2012 | CSGP | Option to Acquire Common Stock | Common Stock | $43.99 | Feb. 26, 2018 | 10,500 | Disposed |
| Dec. 31, 2012 | CSGP | Option to Acquire Common Stock | Common Stock | $54.12 | June 4, 2017 | 3,000 | Disposed |
| Dec. 31, 2012 | CSGP | Option to Acquire Common Stock | Common Stock | $48.25 | Jan. 28, 2017 | 4,000 | Disposed |
| May 22, 2012 | CSGP | Option to Acquire Common Stock | Common Stock | $25.00 | March 1, 2019 | 19,500 | Disposed |
| May 11, 2012 | CSGP | Option to Acquire Common Stock | Common Stock | $39.81 | Feb. 5, 2014 | 60 | Disposed |
| May 7, 2012 | CSGP | Option to Acquire Common Stock | Common Stock | $39.81 | Feb. 5, 2014 | 5,940 | Disposed |
| May 7, 2012 | CSGP | Option to Acquire Common Stock | Common Stock | $18.28 | Dec. 1, 2012 | 1,875 | Disposed |
| Feb. 21, 2012 | CSGP | Option to Acquire Common Stock | Common Stock | $58.95 | Feb. 20, 2022 | 13,900 | Acquired |
| March 4, 2011 | CSGP | Option to Acquire Common Stock | Common Stock | $57.16 | March 3, 2021 | 14,000 | Acquired |
| March 12, 2010 | CSGP | Option to Acquire Common Stock | Common Stock | $42.29 | March 11, 2020 | 16,900 | Acquired |
| March 2, 2009 | CSGP | Option to Acquire Common Stock | Common Stock | $25.00 | March 1, 2019 | 19,500 | Acquired |
| Feb. 27, 2008 | CSGP | Option to Acquire Common Stock | Common Stock | $43.99 | Feb. 26, 2018 | 10,500 | Acquired |
| June 5, 2007 | CSGP | Option to Acquire Common Stock | Common Stock | $54.12 | June 4, 2017 | 3,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 6 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| March 23, 2021 | ACVA | Series E-1 Preferred Stock | · | Direct |
| Feb. 11, 2021 | MDAIW | Class B common stock | 50,000 | Direct |
| June 6, 2007 | CSGP | Common Stock, par value $0.01 per share | · | Direct |
| June 6, 2007 | CSGP | Option to Acquire Common Stock | 1,875 | Direct |
| June 6, 2007 | CSGP | Option to Acquire Common Stock | 6,000 | Direct |
| June 6, 2007 | CSGP | Option to Acquire Common Stock | 4,000 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2014 | $372,175 | · | · | · | $487,500 | · | $14,733 | $3,219,388 |
| 2013 | $357,031 | · | · | · | $454,716 | · | $13,720 | $2,113,313 |
| 2012 | $338,462 | · | · | · | $455,000 | · | $9,200 | $1,679,591 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.