XMTR Xometry, Inc.
$86.11
Xometry, Inc. (XMTR) Insider Activity
What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.
Insider signal
In line
Selling ran in line with XMTR's own trailing one-year pace, with 65% of sale value under a prearranged plan.
Cluster activity
0 buyers in the last 30 days
0 buyers in the last 90 days
8 sellers in the last 90 days
Insiders buying
2
2 transactions
Insiders selling
8
176 transactions
Purchases
$4.0M
48,273 shares
Sales
$19.2M
284,954 shares
Net activity
-$15.1M
purchases less sales
How much of that selling was preplanned? 65% planned / 35% discretionary
10b5-1 plan sales
$12.4M
157 transactions · 209,954 shares
Discretionary sales
$6.7M
19 transactions · 75,000 shares
Largest single sale: $1.0M.
Where they traded
Buy
Sell
Dot area is proportional to transaction value.
Last open-market purchase: June 3, 2026 , by Biewald Lukas Alexander .
Recent open-market activity
| Date | Insider | Role | Action | Shares | Price | Value | Held after |
|---|---|---|---|---|---|---|---|
| Weymouth Katharine | Director | Sell | 5,000 | $95.23 | $476.2K | 35,345 −12.4% of holding | |
| Weymouth Katharine | Director | Sell | 5,000 | $94.30 | $471.5K | 35,345 −12.4% of holding | |
| Raghavan Vaidyanathan | Chief Technology Officer | Sell | 5,000 | $96.77 | $483.8K | 135,777 −3.6% of holding | |
| Rollins Emily 3 fills | Director | Sell 10b5-1 | 5,000 | $84.31 | $421.5K | 17,596 −22.1% of holding | |
| Sahni Sanjeev Singh 5 fills | Chief Executive Officer | Sell 10b5-1 | 1,500 | $90.19 | $135.3K | 183,521 −0.8% of holding | |
| Rosati Fabio | Director | Sell | 1,900 | $89.72 | $170.5K | 91,667 −2% of holding | |
| Rosati Fabio 3 fills | Director | Sell | 8,100 | $91.45 | $740.7K | 94,267 −7.9% of holding | |
| Miln James 4 fills | Chief Financial Officer | Sell 10b5-1 | 1,500 | $87.92 | $131.9K | 178,379 −0.8% of holding | |
| Altschuler Randolph 6 fills | Director | Sell 10b5-1 | 5,722 | $93.30 | $533.9K | 432,752 −1.3% of holding | |
| Miln James 6 fills | Chief Financial Officer | Sell 10b5-1 | 2,392 | $93.29 | $223.1K | 180,991 −1.3% of holding | |
| Raghavan Vaidyanathan 6 fills | Chief Technology Officer | Sell 10b5-1 | 1,866 | $93.21 | $173.9K | 142,215 −1.3% of holding | |
| Dutt Subir 6 fills | Chief Sales Officer | Sell 10b5-1 | 1,073 | $93.39 | $100.2K | 94,515 −1.1% of holding | |
| Miln James 3 fills | Chief Financial Officer | Sell 10b5-1 | 1,500 | $97.06 | $145.6K | 182,618 −0.8% of holding | |
| Biewald Lukas Alexander | Director | Buy | 47,058 | $85.00 | $4.0M | 55,134 | |
| Miln James 6 fills | Chief Financial Officer | Sell 10b5-1 | 1,500 | $96.90 | $145.3K | 184,231 −0.8% of holding | |
| Dutt Subir | Chief Sales Officer | Sell 10b5-1 | 2,500 | $95.00 | $237.5K | 94,789 −2.6% of holding | |
| Altschuler Randolph 12 fills | Chief Executive Officer | Sell | 50,000 | $87.85 | $4.4M | 579,539 −7.9% of holding | |
| Dutt Subir 5 fills | Chief Sales Officer | Sell 10b5-1 | 4,943 | $89.20 | $440.9K | 99,732 −4.7% of holding | |
| Dutt Subir | Chief Sales Officer | Sell 10b5-1 | 2,500 | $85.00 | $212.5K | 102,232 −2.4% of holding | |
| Dutt Subir 2 fills | Chief Sales Officer | Sell 10b5-1 | 5,000 | $79.86 | $399.3K | 108,122 −4.4% of holding | |
| Miln James 2 fills | Chief Financial Officer | Sell 10b5-1 | 1,500 | $79.69 | $119.5K | 185,159 −0.8% of holding | |
| Altschuler Randolph 3 fills | Chief Executive Officer | Sell 10b5-1 | 5,721 | $41.72 | $238.7K | 439,430 −1.3% of holding | |
| Miln James 3 fills | Chief Financial Officer | Sell 10b5-1 | 2,392 | $41.72 | $99.8K | 188,102 −1.3% of holding | |
| Raghavan Vaidyanathan 3 fills | Chief Technology Officer | Sell 10b5-1 | 1,865 | $41.77 | $77.9K | 144,329 −1.3% of holding | |
| Sahni Sanjeev Singh 3 fills | President | Sell 10b5-1 | 1,111 | $41.77 | $46.4K | 144,384 −0.8% of holding | |
| Dutt Subir 3 fills | Chief Sales Officer | Sell 10b5-1 | 699 | $41.76 | $29.2K | 110,304 −0.6% of holding | |
| Miln James | Chief Financial Officer | Sell 10b5-1 | 1,500 | $42.03 | $63.0K | 188,415 −0.8% of holding | |
| Rollins Emily | Director | Sell 10b5-1 | 1,000 | $42.02 | $42.0K | 15,136 −6.2% of holding | |
| Miln James 6 fills | Chief Financial Officer | Sell 10b5-1 | 12,272 | $42.00 | $515.4K | 172,861 −6.6% of holding | |
| Weymouth Katharine | Director | Buy | 1,215 | $41.15 | $50.0K | 3,615 | |
| Altschuler Randolph 4 fills | Chief Executive Officer | Sell 10b5-1 | 31,928 | $43.44 | $1.4M | 402,116 −7.4% of holding | |
| Miln James 4 fills | Chief Financial Officer | Sell 10b5-1 | 15,103 | $43.46 | $656.3K | 187,266 −7.5% of holding | |
| Sahni Sanjeev Singh 4 fills | President | Sell 10b5-1 | 9,978 | $43.45 | $433.5K | 122,356 −7.5% of holding | |
| Raghavan Vaidyanathan 3 fills | Chief Technology Officer | Sell 10b5-1 | 4,572 | $43.44 | $198.6K | 68,437 −6.3% of holding | |
| Dutt Subir 3 fills | Chief Sales Officer | Sell 10b5-1 | 2,410 | $43.47 | $104.8K | 90,860 −2.6% of holding | |
| Dutt Subir | Chief Sales Officer | Sell 10b5-1 | 2,500 | $70.00 | $175.0K | 64,919 −3.7% of holding | |
| Miln James 2 fills | Chief Financial Officer | Sell 10b5-1 | 599 | $58.98 | $35.3K | 134,296 −0.4% of holding | |
| Sahni Sanjeev Singh 6 fills | President | Sell 10b5-1 | 26,190 | $65.47 | $1.7M | 88,677 −22.8% of holding | |
| Altschuler Randolph 5 fills | Chief Executive Officer | Sell 10b5-1 | 14,826 | $66.53 | $986.4K | 309,345 −4.6% of holding | |
| Miln James 5 fills | Chief Financial Officer | Sell 10b5-1 | 6,203 | $66.51 | $412.6K | 140,145 −4.2% of holding | |
| Sahni Sanjeev Singh 4 fills | President | Sell 10b5-1 | 4,446 | $66.57 | $296.0K | 93,481 −4.5% of holding | |
| Dutt Subir 5 fills | Chief Sales Officer | Sell 10b5-1 | 3,929 | $65.55 | $257.6K | 71,211 −5.2% of holding | |
| Raghavan Vaidyanathan 5 fills | Chief Technology Officer | Sell 10b5-1 | 3,570 | $66.51 | $237.5K | 41,822 −7.9% of holding | |
| Rollins Emily 2 fills | Director | Sell 10b5-1 | 1,000 | $61.86 | $61.9K | 12,180 −7.6% of holding | |
| Miln James 2 fills | Chief Financial Officer | Sell 10b5-1 | 598 | $61.80 | $37.0K | 141,010 −0.4% of holding | |
| Miln James 2 fills | Chief Financial Officer | Sell 10b5-1 | 598 | $56.02 | $33.5K | 141,250 −0.4% of holding | |
| Dutt Subir | Chief Sales Officer | Sell 10b5-1 | 2,075 | $60.00 | $124.5K | 71,348 −2.8% of holding | |
| Dutt Subir | Chief Sales Officer | Sell 10b5-1 | 425 | $60.34 | $25.6K | 73,423 −0.6% of holding | |
| Rollins Emily 3 fills | Director | Sell 10b5-1 | 1,000 | $68.03 | $68.0K | 12,349 −7.5% of holding | |
| Miln James 4 fills | Chief Financial Officer | Sell 10b5-1 | 599 | $62.11 | $37.2K | 142,340 −0.4% of holding | |
| Altschuler Randolph 4 fills | Chief Executive Officer | Sell 10b5-1 | 9,331 | $50.31 | $469.4K | 316,067 −2.9% of holding | |
| Raghavan Vaidyanathan 3 fills | Chief Technology Officer | Sell 10b5-1 | 1,298 | $50.30 | $65.3K | 42,758 −2.9% of holding | |
| Miln James 3 fills | Chief Financial Officer | Sell 10b5-1 | 1,122 | $50.20 | $56.3K | 143,014 −0.8% of holding | |
| Miln James 2 fills | Chief Financial Officer | Sell 10b5-1 | 598 | $52.22 | $31.2K | 143,732 −0.4% of holding |
Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.