| Sep 3, 2026 (view filing)8:46 PM ET | Sep 1-2 | 2 days | Walker Mark DChairman and CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Class A Common Stock, par value $0.001 per share | −2.14K | $2.02 | −$4.32K | −21.4%7.86K after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average. |
| Jun 29, 2026 (view filing) | Jun 12 | 17 daysLateFiled more than 2 business days after the trade (the Form 4 deadline). A few cases, such as trades a broker makes under a 10b5-1 plan, have a longer deadline, so this flag comes from the dates alone and does not mean a rule was broken. | Walker Mark DChairman and CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Class A Common Stock, par value $0.001 per share | −1.36K | $2.80 | −$3.82K | −100.0%0 after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Nov 17, 2025 (view filing)4:05 PM ET | Nov 13-14 | 4 days | Walker Mark DChairman and CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Class A Common Stock, par value $0.001 per share | −272.5K | $0.2261 | −$61.6K | −100.0%0 after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average. |
| Aug 19, 2025 (view filing)5:42 PM ET | Aug 15 | 4 days | Walker Mark DChairman and CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Class A Common Stock, par value $0.001 per share | −22.4K | $0.41 | −$9.17K | −100.0%0 after | |
| Aug 19, 2025 (view filing)5:42 PM ET | Aug 18-19 | 1 day | Walker Mark DChairman and CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Class A Common Stock, par value $0.001 per share | −47.3K | $0.39 | −$18.5K | −100.0%0 after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average. |
| Jul 23, 2025 (view filing) | Jul 21-23 | 2 days | Walker Mark DChairman and CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Class A Common Stock, par value $0.001 per share | −37.8K | $0.5144 | −$19.4K | −44.4%47.3K after | 3 lotsThis row combines 3 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Jul 18, 2025 (view filing) | Jul 16-18 | 2 days | Walker Mark DChairman and CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Class A Common Stock, par value $0.001 per share | −50.7K | $0.5184 | −$26.3K | −37.3%85.1K after | 3 lotsThis row combines 3 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Jul 16, 2025 (view filing) | Jul 14-15 | 2 days | Walker Mark DChairman and CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Class A Common Stock, par value $0.001 per share | −29.2K | $0.5472 | −$16.0K | −17.7%135.8K after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Jun 13, 2025 (view filing) | Jun 11-13 | 2 days | Walker Mark DChairman and CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Class A Common Stock, par value $0.001 per share | −28.3K | $0.5251 | −$14.9K | −100.0%0 after | 3 lotsThis row combines 3 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Apr 21, 2025 (view filing) | Apr 17 | 4 days | Walker Mark DChairman and CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Class A Common Stock, par value $0.001 per share | −8.70K | $0.54 | −$4.70K | −23.5%28.3K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Mar 27, 2025 (view filing) | Mar 25-27 | 2 days | Walker Mark DChairman and CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Class A Common Stock, par value $0.001 per share | −33.6K | $0.7699 | −$25.9K | −47.6%37.0K after | 3 lotsThis row combines 3 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Mar 24, 2025 (view filing) | Mar 20-24 | 4 days | Walker Mark DChairman and CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Class A Common Stock, par value $0.001 per share | −30.9K | $0.7742 | −$23.9K | −98.0%640 after | 3 lotsThis row combines 3 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Mar 19, 2025 (view filing) | Mar 17-19 | 2 days | Walker Mark DChairman and CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Class A Common Stock, par value $0.001 per share | −26.9K | $0.7719 | −$20.7K | −46.0%31.5K after | 3 lotsThis row combines 3 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Mar 17, 2025 (view filing) | Mar 12-14 | 5 daysLateFiled more than 2 business days after the trade (the Form 4 deadline). A few cases, such as trades a broker makes under a 10b5-1 plan, have a longer deadline, so this flag comes from the dates alone and does not mean a rule was broken. | Walker Mark DChairman and CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Class A Common Stock, par value $0.001 per share | −34.6K | $0.8002 | −$27.7K | −37.2%58.4K after | 3 lotsThis row combines 3 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Mar 13, 2025 (view filing) | Mar 11 | 2 days | Walker Mark DChairman and CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Class A Common Stock, par value $0.001 per share | −11.3K | $0.92 | −$10.4K | −10.8%93.0K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Dec 17, 2024 (view filing) | Dec 13-16 | 4 days | Walker Mark DChairman and CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Class A Common Stock | −30.9K | $0.7221 | −$22.3K | −18.4%137.3K after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average. |
| Dec 12, 2024 (view filing) | Dec 10-12 | 2 days | Walker Mark DChairman and CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Class A Common Stock | −31.8K | $0.8939 | −$28.4K | −15.9%168.2K after | 3 lotsThis row combines 3 trades of the same kind from one filing. The price is the value-weighted average. |
| Dec 5, 2024 (view filing) | Dec 3-5 | 2 days | Walker Mark DChairman and CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Class A Common Stock | −20.2K | $0.9945 | −$20.1K | −100.0%0 after | 3 lotsThis row combines 3 trades of the same kind from one filing. The price is the value-weighted average. |
| Dec 2, 2024 (view filing) | Nov 27-Dec 2 | 5 days | Walker Mark DChairman and CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Class A Common Stock | −24.1K | $1.22 | −$29.4K | −54.5%20.2K after | 3 lotsThis row combines 3 trades of the same kind from one filing. The price is the value-weighted average. |
| Nov 26, 2024 (view filing) | Nov 22-26 | 4 days | Walker Mark DChairman and CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Class A Common Stock | −17.3K | $1.31 | −$22.8K | −28.1%44.3K after | 3 lotsThis row combines 3 trades of the same kind from one filing. The price is the value-weighted average. |
| Nov 21, 2024 (view filing) | Nov 19 | 2 days | Walker Mark DChairman and CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Class A Common Stock | −5.00K | $1.50 | −$7.50K | −7.5%61.6K after | |
| Nov 19, 2024 (view filing) | Nov 15-18 | 4 days | Walker Mark DChairman and CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Class A Common Stock | −10.6K | $1.73 | −$18.4K | −13.8%66.7K after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average. |
| Dec 1, 2022 (view filing) | Nov 29 | 2 days | Walker Mark DChairman and CEO | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Class A Common Stock | +5.32K | $0.55 | +$2.93K | –27.3K after | DerivativeA trade in a derivative security (option, warrant, restricted stock unit and so on). The value is the derivative's own price times the quantity. |
| Nov 29, 2022 (view filing) | Nov 28 | 1 day | Walker Mark DChairman and CEO | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Class A Common Stock | +8.69K | $0.50 | +$4.34K | –21.9K after | DerivativeA trade in a derivative security (option, warrant, restricted stock unit and so on). The value is the derivative's own price times the quantity. |
| Nov 25, 2022 (view filing) | Nov 23 | 2 days | Walker Mark DChairman and CEO | PPurchaseThe insider bought shares with their own money, on the open market or in a private deal (for example, a company's private placement). This is the code investors watch most closely: it is money the insider chose to put in.Class A Common Stock | +13.3K | $0.50 | +$6.63K | –13.3K after | DerivativeA trade in a derivative security (option, warrant, restricted stock unit and so on). The value is the derivative's own price times the quantity. |
