Denise Dillard Mahaffy

CIK 1592712 · View on SEC EDGAR ↗

Insider

First SEC filing: June 5, 2026 · Latest: June 5, 2026

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 100 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

No open-market trades on record; showing all filings.

Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
July 27, 2026 DDT A 10 $576.57 $5,766 166,584 Direct +0.01% Acquired -95.4% (price as of 2026-08-21)
June 29, 2026 DDT A 13 $545.93 $7,097 166,574 Direct +0.01% Acquired -95.2% (price as of 2026-08-21)
June 4, 2026 DDT A 273,724 273,724 Direct Acquired (price as of 2026-08-21)
June 4, 2026 DDT A 2,850 166,561 Direct +1.74% Acquired (price as of 2026-08-21)
May 26, 2026 DDT A 10 $570.32 $5,703 163,711 -95.4% (price as of 2026-08-21)
Jan. 31, 2025 DDT A 129 $469.18 $60,524 136,342 Direct +0.09% Acquired -94.4% (price as of 2026-08-21)
Dec. 30, 2024 DDT A 16 $445.40 $7,126 136,213 Direct +0.01% Acquired -94.1% (price as of 2026-08-21)
Nov. 25, 2024 DDT A 12 $467.94 $5,615 136,197 Direct +0.01% Acquired -94.4% (price as of 2026-08-21)
Oct. 28, 2024 DDT A 14 $385.48 $5,397 136,185 Direct +0.01% Acquired -93.2% (price as of 2026-08-21)
Sept. 30, 2024 DDT A 18 $393.38 $7,081 136,171 Direct +0.01% Acquired -93.3% (price as of 2026-08-21)
Aug. 26, 2024 DDT A 16 $354.25 $5,668 136,153 Direct +0.01% Acquired -92.6% (price as of 2026-08-21)
July 29, 2024 DDT A 14 $389.57 $5,454 136,137 Direct +0.01% Acquired -93.3% (price as of 2026-08-21)
June 28, 2024 DDT A 16 $442.68 $7,083 136,123 Direct +0.01% Acquired -94.1% (price as of 2026-08-21)
May 28, 2024 DDT A 12 $450.25 $5,403 136,107 Direct +0.01% Acquired -94.2% (price as of 2026-08-21)
April 30, 2024 DDT A 162 $438.54 $71,043 136,095 Direct +0.12% Acquired -94.0% (price as of 2026-08-21)
Feb. 2, 2024 DDT A 156 $391.28 $61,040 135,933 Direct +0.11% Acquired -93.3% (price as of 2026-08-21)
Jan. 2, 2024 DDT A 20 $405.48 $8,110 135,777 Direct +0.01% Acquired -93.5% (price as of 2026-08-21)
Nov. 20, 2023 DDT A 16 $343.91 $5,503 135,757 Direct +0.01% Acquired -92.4% (price as of 2026-08-21)
Oct. 31, 2023 DDT A 24 $310.56 $7,453 135,741 Direct +0.02% Acquired -91.5% (price as of 2026-08-21)
Oct. 23, 2023 DDT A 21 $316.00 $6,636 135,717 Direct +0.02% Acquired -91.7% (price as of 2026-08-21)
Sept. 18, 2023 DDT A 17 $315.11 $5,357 135,696 Direct +0.01% Acquired -91.7% (price as of 2026-08-21)
Aug. 21, 2023 DDT A 16 $335.35 $5,366 135,679 Direct +0.01% Acquired -92.2% (price as of 2026-08-21)
Aug. 1, 2023 DDT A 18 $341.23 $6,142 135,663 Direct +0.01% Acquired -92.3% (price as of 2026-08-21)
July 24, 2023 DDT A 17 $311.48 $5,295 135,645 Direct +0.01% Acquired -91.6% (price as of 2026-08-21)
June 26, 2023 DDT A 21 $324.18 $6,808 135,628 Direct +0.02% Acquired -91.9% (price as of 2026-08-21)
May 22, 2023 DDT A 19 $290.14 $5,513 135,607 Direct +0.01% Acquired -90.9% (price as of 2026-08-21)
May 2, 2023 DDT A 20 $289.98 $5,800 135,588 Direct +0.01% Acquired -90.9% (price as of 2026-08-21)
April 24, 2023 DDT A 9 $311.66 $2,805 135,568 Direct +0.01% Acquired -91.6% (price as of 2026-08-21)
April 11, 2023 DDT A 231 $311.71 $72,005 135,559 Direct +0.17% Acquired -91.6% (price as of 2026-08-21)
Jan. 27, 2023 DDT A 358 $384.08 $137,501 135,328 Direct +0.27% Acquired -93.2% (price as of 2026-08-21)
Jan. 3, 2023 DDT A 24 $323.95 $7,775 134,970 Direct +0.02% Acquired -91.9% (price as of 2026-08-21)
Nov. 21, 2022 DDT A 14 $358.89 $5,024 134,946 Direct +0.01% Acquired -92.7% (price as of 2026-08-21)
Nov. 1, 2022 DDT A 18 $333.74 $6,007 134,932 Direct +0.01% Acquired -92.1% (price as of 2026-08-21)
Oct. 24, 2022 DDT A 17 $312.11 $5,306 134,914 Direct +0.01% Acquired -91.6% (price as of 2026-08-21)
Sept. 26, 2022 DDT A 23 $275.18 $6,329 134,897 Direct +0.02% Acquired -90.4% (price as of 2026-08-21)
Aug. 22, 2022 DDT A 17 $309.35 $5,259 134,874 Direct +0.01% Acquired -91.5% (price as of 2026-08-21)
Aug. 2, 2022 DDT A 26 $228.55 $5,942 134,857 Direct +0.02% Acquired -88.5% (price as of 2026-08-21)
July 25, 2022 DDT A 23 $221.49 $5,094 134,831 Direct +0.02% Acquired -88.1% (price as of 2026-08-21)
June 27, 2022 DDT A 25 $260.96 $6,524 134,808 Direct +0.02% Acquired -89.9% (price as of 2026-08-21)
May 23, 2022 DDT A 20 $258.76 $5,175 134,783 Direct +0.01% Acquired -89.8% (price as of 2026-08-21)
May 3, 2022 DDT A 18 $315.43 $5,678 134,763 Direct +0.01% Acquired -91.7% (price as of 2026-08-21)
April 25, 2022 DDT A 945 $276.74 $261,519 134,745 Direct +0.71% Acquired -90.5% (price as of 2026-08-21)
Feb. 1, 2022 DDT A 22 $257.19 $5,658 133,800 Direct +0.02% Acquired -89.8% (price as of 2026-08-21)
Jan. 28, 2022 DDT A 96 $250.71 $24,068 133,778 Direct +0.07% Acquired -89.5% (price as of 2026-08-21)
Jan. 3, 2022 DDT A 28 $265.95 $7,447 133,682 Direct +0.02% Acquired -90.1% (price as of 2026-08-21)
Nov. 22, 2021 DDT A 13 $369.25 $4,800 133,654 Direct +0.01% Acquired -92.9% (price as of 2026-08-21)
Nov. 2, 2021 DDT A 24 $236.29 $5,671 133,641 Direct +0.02% Acquired -88.9% (price as of 2026-08-21)
Oct. 25, 2021 DDT A 22 $227.74 $5,010 133,617 Direct +0.02% Acquired -88.5% (price as of 2026-08-21)
Sept. 27, 2021 DDT A 30 $204.49 $6,135 133,595 Direct +0.02% Acquired -87.1% (price as of 2026-08-21)
Aug. 24, 2021 DDT A 24 $206.36 $4,953 133,565 Direct +0.02% Acquired -87.3% (price as of 2026-08-21)
Aug. 3, 2021 DDT A 24 $177.93 $4,270 133,541 Direct +0.02% Acquired -85.2% (price as of 2026-08-21)
July 26, 2021 DDT A 27 $185.53 $5,009 133,517 Direct +0.02% Acquired -85.8% (price as of 2026-08-21)
June 28, 2021 DDT A 11 $184.23 $2,027 133,490 Direct +0.01% Acquired -85.7% (price as of 2026-08-21)
May 4, 2021 DDT A 40 $105.07 $4,203 133,479 Direct +0.03% Acquired -75.0% (price as of 2026-08-21)
Feb. 2, 2021 DDT A 56 $74.21 $4,156 133,439 Direct +0.04% Acquired -64.6% (price as of 2026-08-21)
Jan. 29, 2021 DDT A 259 $92.81 $24,038 133,383 Direct +0.19% Acquired -71.7% (price as of 2026-08-21)
Jan. 4, 2021 DDT A 170 $60.76 $10,329 133,124 Direct +0.13% Acquired -56.7% (price as of 2026-08-21)
Nov. 23, 2020 DDT A 140 $49.16 $6,882 132,954 Direct +0.11% Acquired -46.5% (price as of 2026-08-21)
Nov. 3, 2020 DDT A 90 $45.84 $4,126 132,814 Direct +0.07% Acquired -42.6% (price as of 2026-08-21)
Oct. 26, 2020 DDT A 141 $48.96 $6,903 132,724 Direct +0.11% Acquired -46.3% (price as of 2026-08-21)
Sept. 28, 2020 DDT A 269 $31.99 $8,605 132,583 Direct +0.20% Acquired -17.8% (price as of 2026-08-21)
Aug. 24, 2020 DDT A 262 $26.32 $6,896 132,314 Direct +0.20% Acquired -0.1% (price as of 2026-08-21)
Aug. 4, 2020 DDT A 158 $25.07 $3,961 132,052 Direct +0.12% Acquired 4.9% (price as of 2026-08-21)
July 27, 2020 DDT A 285 $24.17 $6,888 131,894 Direct +0.22% Acquired 8.8% (price as of 2026-08-21)
June 29, 2020 DDT A 109 $26.04 $2,838 131,609 Direct +0.08% Acquired 1.0% (price as of 2026-08-21)
May 5, 2020 DDT A 137 $28.85 $3,952 131,500 Direct +0.10% Acquired -8.9% (price as of 2026-08-21)
Feb. 4, 2020 DDT A 65 $60.77 $3,950 131,363 Direct +0.05% Acquired -56.7% (price as of 2026-08-21)
Jan. 31, 2020 DDT A 443 $63.90 $28,308 131,298 Direct +0.34% Acquired -58.9% (price as of 2026-08-21)
Dec. 30, 2019 DDT A 84 $73.47 $6,171 130,855 Direct +0.06% Acquired -64.2% (price as of 2026-08-21)
Nov. 25, 2019 DDT A 66 $74.58 $4,922 130,771 Direct +0.05% Acquired -64.7% (price as of 2026-08-21)
Nov. 5, 2019 DDT A 53 $72.59 $3,847 130,705 Direct +0.04% Acquired -63.8% (price as of 2026-08-21)
Oct. 28, 2019 DDT A 66 $74.65 $4,927 130,652 Direct +0.05% Acquired -64.8% (price as of 2026-08-21)
Sept. 30, 2019 DDT A 97 $63.44 $6,154 130,586 Direct +0.07% Acquired -58.6% (price as of 2026-08-21)
Aug. 26, 2019 DDT A 89 $55.45 $4,935 130,489 Direct +0.07% Acquired -52.6% (price as of 2026-08-21)
Aug. 6, 2019 DDT A 37 $69.87 $2,585 130,400 Direct +0.03% Acquired -62.4% (price as of 2026-08-21)
July 29, 2019 DDT A 65 $75.97 $4,938 130,363 Direct +0.05% Acquired -65.4% (price as of 2026-08-21)
July 1, 2019 DDT A 102 $60.62 $6,183 130,298 Direct +0.08% Acquired -56.6% (price as of 2026-08-21)
May 28, 2019 DDT A 88 $56.82 $5,000 130,196 Direct +0.07% Acquired -53.7% (price as of 2026-08-21)
May 7, 2019 DDT A 38 $67.10 $2,550 130,108 Direct +0.03% Acquired -60.8% (price as of 2026-08-21)
April 29, 2019 DDT A 68 $70.03 $4,762 130,070 Direct +0.05% Acquired -62.5% (price as of 2026-08-21)
Feb. 5, 2019 DDT A 37 $67.59 $2,501 130,002 Direct +0.03% Acquired -61.1% (price as of 2026-08-21)
Feb. 1, 2019 DDT A 421 $65.75 $27,681 129,965 Direct +0.32% Acquired -60.0% (price as of 2026-08-21)
Dec. 31, 2018 DDT A 99 $59.96 $5,936 129,544 Direct +0.08% Acquired -56.2% (price as of 2026-08-21)
Nov. 26, 2018 DDT A 73 $65.58 $4,787 129,445 Direct +0.06% Acquired -59.9% (price as of 2026-08-21)
Nov. 6, 2018 DDT A 33 $75.27 $2,484 129,372 Direct +0.03% Acquired -65.1% (price as of 2026-08-21)
Oct. 29, 2018 DDT A 64 $74.49 $4,767 129,339 Direct +0.05% Acquired -64.7% (price as of 2026-08-21)
Oct. 1, 2018 DDT A 77 $77.60 $5,975 129,275 Direct +0.06% Acquired -66.1% (price as of 2026-08-21)
Aug. 27, 2018 DDT A 63 $75.84 $4,778 129,198 Direct +0.05% Acquired -65.3% (price as of 2026-08-21)
Aug. 7, 2018 DDT A 30 $81.91 $2,457 129,135 Direct +0.02% Acquired -67.9% (price as of 2026-08-21)
July 30, 2018 DDT A 59 $81.38 $4,801 129,105 Direct +0.05% Acquired -67.7% (price as of 2026-08-21)
July 2, 2018 DDT A 65 $91.39 $5,940 129,046 Direct +0.05% Acquired -71.2% (price as of 2026-08-21)
May 29, 2018 DDT A 60 $78.91 $4,735 128,981 Direct +0.05% Acquired -66.7% (price as of 2026-08-21)
May 8, 2018 DDT A 36 $68.62 $2,470 128,921 Direct +0.03% Acquired -61.7% (price as of 2026-08-21)
April 30, 2018 DDT A 64 $78.41 $5,018 128,885 Direct +0.05% Acquired -66.5% (price as of 2026-08-21)
Feb. 6, 2018 DDT A 39 $62.48 $2,437 128,821 Direct +0.03% Acquired -57.9% (price as of 2026-08-21)
Feb. 2, 2018 DDT A 432 $65.09 $28,119 128,782 Direct +0.34% Acquired -59.6% (price as of 2026-08-21)
Jan. 2, 2018 DDT A 114 $60.76 $6,927 128,350 Direct +0.09% Acquired -56.7% (price as of 2026-08-21)
Nov. 20, 2017 DDT A 85 $54.00 $4,590 128,236 Direct +0.07% Acquired -51.3% (price as of 2026-08-21)
Oct. 31, 2017 DDT A 47 $51.02 $2,398 128,151 Direct +0.04% Acquired -48.5% (price as of 2026-08-21)
Oct. 23, 2017 DDT A 84 $55.03 $4,623 128,104 Direct +0.07% Acquired -52.2% (price as of 2026-08-21)

Showing latest 100 of 157 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
June 4, 2026 DDT Common Class B Common Class A (273,724) 273,724 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 3 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date Ticker Security Shares Ownership
Nov. 27, 2013 DDT Common Class A 69,179 Direct
Nov. 27, 2013 DDT Common Class A - Retirement Plan 21,150 Direct
Nov. 27, 2013 DDT Common Class A 5,243 Indirect