| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | IRON | Common Stock | Sale | $1,870,039 | -31,235 | -2% | $59.87 | 1,562,550 | 12 Dec 2023 | Direct | F1, F2 |
| transaction | IRON | Common Stock | Sale | $1,246,673 | -20,823 | -2.4% | $59.87 | 861,401 | 12 Dec 2023 | See footnote | F1, F3 |
| transaction | IRON | Common Stock | Sale | $38,546 | -632 | -0.04% | $60.99 | 1,561,918 | 12 Dec 2023 | Direct | F2, F4 |
| transaction | IRON | Common Stock | Sale | $25,738 | -422 | -0.05% | $60.99 | 860,979 | 12 Dec 2023 | See footnote | F3, F4 |
| transaction | IRON | Common Stock | Sale | $389,126 | -6,234 | -0.4% | $62.42 | 1,555,684 | 12 Dec 2023 | Direct | F2, F5 |
| transaction | IRON | Common Stock | Sale | $259,355 | -4,155 | -0.48% | $62.42 | 856,824 | 12 Dec 2023 | See footnote | F3, F5 |
| transaction | IRON | Common Stock | Sale | $62,523 | -994 | -0.06% | $62.90 | 1,554,690 | 12 Dec 2023 | Direct | F2, F6 |
| transaction | IRON | Common Stock | Sale | $41,828 | -665 | -0.08% | $62.90 | 856,159 | 12 Dec 2023 | See footnote | F3, F6 |
| transaction | IRON | Common Stock | Sale | $65,757 | -1,031 | -0.07% | $63.78 | 1,553,659 | 12 Dec 2023 | Direct | F2, F7 |
| transaction | IRON | Common Stock | Sale | $43,881 | -688 | -0.08% | $63.78 | 855,471 | 12 Dec 2023 | See footnote | F3, F7 |
| transaction | IRON | Common Stock | Sale | $1,817,852 | -27,924 | -1.8% | $65.10 | 1,525,735 | 12 Dec 2023 | Direct | F2, F8 |
| transaction | IRON | Common Stock | Sale | $1,211,836 | -18,615 | -2.2% | $65.10 | 836,856 | 12 Dec 2023 | See footnote | F3, F8 |
| transaction | IRON | Common Stock | Sale | $651,189 | -9,901 | -0.65% | $65.77 | 1,515,834 | 12 Dec 2023 | Direct | F2, F9 |
| transaction | IRON | Common Stock | Sale | $434,016 | -6,599 | -0.79% | $65.77 | 830,257 | 12 Dec 2023 | See footnote | F3, F9 |
| transaction | IRON | Common Stock | Sale | $315,727 | -5,263 | -0.35% | $59.99 | 1,510,571 | 13 Dec 2023 | Direct | F2, F10 |
| transaction | IRON | Common Stock | Sale | $210,445 | -3,508 | -0.42% | $59.99 | 826,749 | 13 Dec 2023 | See footnote | F3, F10 |
| transaction | IRON | Common Stock | Sale | $3,630 | -60 | -0% | $60.50 | 1,510,511 | 13 Dec 2023 | Direct | F2 |
| transaction | IRON | Common Stock | Sale | $2,420 | -40 | -0% | $60.50 | 826,709 | 13 Dec 2023 | See footnote | F3 |
| transaction | IRON | Common Stock | Sale | $1,785,684 | -30,645 | -2% | $58.27 | 1,479,866 | 14 Dec 2023 | Direct | F2, F11 |
| transaction | IRON | Common Stock | Sale | $1,190,398 | -20,429 | -2.5% | $58.27 | 806,280 | 14 Dec 2023 | See footnote | F3, F11 |
| transaction | IRON | Common Stock | Sale | $10,753 | -180 | -0.01% | $59.74 | 1,479,686 | 14 Dec 2023 | Direct | F2, F12 |
| transaction | IRON | Common Stock | Sale | $7,169 | -120 | -0.01% | $59.74 | 806,160 | 14 Dec 2023 | See footnote | F3, F12 |
| Id | Content |
|---|---|
| F1 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.50 to $60.497 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1), (4), (5), (6), (7), (8), (9), (10), (11) and (12). |
| F2 | These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas X"). Atlas Venture Associates X, L.P. ("Associates X") is the general partner of Atlas X. Atlas Venture Associates X, LLC ("Associates X LLC") is the general partner of Associates X. Each of Associates X and Associates X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas X, except to the extent of its pecuniary interest therein, if any. |
| F3 | These shares are held directly by Atlas Venture Opportunity Fund I, L.P. ("Atlas Opportunity I"). Atlas Venture Associates Opportunity I, L.P. ("Associates I") is the general partner of Atlas Opportunity I. Atlas Venture Associates Opportunity I, LLC ("Associates I LLC") is the general partner of Associates I. Each of Associates I and Associates I LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Opportunity I, except to the extent of its pecuniary interest therein, if any. |
| F4 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $60.51 to $61.50 inclusive. |
| F5 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.5297 to $62.5175 inclusive. |
| F6 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $62.6436 to $63.3256 inclusive. |
| F7 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.70 to $64.67 inclusive. |
| F8 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.7499 to $65.735 inclusive. |
| F9 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $65.745 to $66.32 inclusive. |
| F10 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.50 to $60.4381 inclusive. |
| F11 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $58.25 to $58.65 inclusive. |
| F12 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.53 to $60.17 inclusive. |