Comparable stake leader
PRIMECAP MANAGEMENT CO/CA/
SEC ownership of Xometry, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001657573.
Disclosed value leader
PRIMECAP MANAGEMENT CO/CA/
Comparable rows
50/50
Latest evidence
28 Aug 2026
- Public ticker
- XMTR on Nasdaq
- Parsed ownership sources
-
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
PRIMECAP MANAGEMENT CO/CA/
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
PRIMECAP MANAGEMENT CO/CA/
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
28 Aug 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001657573
- Issuer location
- North Bethesda, MD
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Xometry, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
PRIMECAP MANAGEMENT CO/CA/
Disclosed value leader
PRIMECAP MANAGEMENT CO/CA/
Comparable rows
50/50
Latest evidence
28 Aug 2026
13F
13D/G
3/4/5
Lead comparable stake: 13%
13D/G row: PRIMECAP MANAGEMENT CO/CA/
Showing 1-8 of 50 holder rows.
Quick read
PRIMECAP MANAGEMENT CO/CA/ leads the comparable SEC ownership view at 13%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens PRIMECAP MANAGEMENT CO/CA/'s linked filing trail.
Comparable ownership
Top 5
PRIMECAP MANAGEMENT CO/CA/
13%
FMR LLC
7.4%
EVENTIDE ASSET MANAGEMENT, LLC
4%
BROWN CAPITAL MANAGEMENT LLC
3.3%
Sanjeev Singh Sahni
0.34%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| PRIMECAP MANAGEMENT CO/CA/ |
13F
13D/G
Company
|
13%
from 13D/G
|
$640,512,221
6,636,057 shares
|
— | 30 Jun 2026 |
| FMR LLC |
13F
13D/G
Company
|
7.4%
from 13D/G
|
$378,182,458
3,918,177 shares
|
— | 30 Jun 2026 |
| EVENTIDE ASSET MANAGEMENT, LLC |
13F
13D/G
Company
|
4%
from 13D/G
|
$208,360,818
2,151,845 shares
|
— | 30 Jun 2026 |
| BROWN CAPITAL MANAGEMENT LLC |
13D/G
13F
Company
|
3.3%
|
$87,788,319
1,611,682 shares
|
-$72,549,192 | 30 Sep 2025 |
| Sanjeev Singh Sahni |
3/4/5
Chief Executive Officer, Director
|
0.34%
|
$17,558,112
182,403 shares
|
-$2,625,708 | 17 Aug 2026 |
| James Miln |
3/4/5
Chief Financial Officer
|
0.33%
|
$16,036,526
177,631 shares
|
-$2,743,176 | 06 Aug 2026 |
| Peter Goguen |
3/4/5
Chief Operating Officer
|
0.33%
|
$5,426,007
175,457 shares
|
— | 17 Jun 2025 |
| Vaidyanathan Raghavan |
3/4/5
Chief Technology Officer
|
0.25%
|
$13,138,461
135,777 shares
|
-$1,237,019 | 27 Aug 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$16,031,695.
Buys
$4,049,927
Insiders: 2
Sells
$20,081,622
Insiders: 8
Net
-$16,031,695
Shares: -246,681
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 48,273
Shares: 294,954
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 55,553 | $0 | $5,116,309 | -$5,116,309 |
| 3-6 | 47,058 | 82,231 | $3,999,930 | $6,544,793 | -$2,544,863 |
| 6-9 | 1,215 | 140,124 | $49,997 | $7,509,407 | -$7,459,409 |
| 9-12 | 0 | 17,046 | $0 | $911,113 | -$911,113 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 22 reporting-owner rows connected to Xometry, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
22
Largest Forms 3/4/5 holder
Randolph Altschuler
Net 12M change
-$16,031,695
Latest report
01 Sep 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Randolph Altschuler | Director | $273,999,825 | -$8,916,396 | -3.2% | Mixed | 01 Sep 2026 |
| Laurence Zuriff | Director | $27,624,620 | Mixed | 15 Mar 2023 | ||
| Foundry Group Next 2018, L.P. | 10%+ Owner | $18,039,394 | Mixed | 02 Jul 2021 | ||
| Sanjeev Singh Sahni | Chief Executive Officer, Director | $17,558,112 | -$2,625,708 | -13% | Filing P/S | 17 Aug 2026 |
| James Miln | Chief Financial Officer | $16,036,526 | -$2,743,176 | -15% | Filing P/S | 06 Aug 2026 |
| Vaidyanathan Raghavan | Chief Technology Officer | $13,138,461 | -$1,237,019 | -8.6% | Filing P/S | 27 Aug 2026 |
| Fabio Rosati | Director | $10,412,511 | -$911,169 | -8% | Mixed | 10 Aug 2026 |
| Subir Dutt | Chief Sales Officer | $9,107,320 | -$2,107,053 | -19% | Filing P/S | 02 Jul 2026 |
| Bill Cronin | Chief Revenue Officer | $7,114,865 | Filing P/S | 01 Nov 2022 | ||
| Peter Goguen | Chief Operating Officer | $5,426,007 | Filing P/S | 17 Jun 2025 | ||
| Lukas Alexander Biewald | Director | $4,686,390 | +$3,999,930 | +583% | Filing P/S | 03 Jun 2026 |
| Katharine Weymouth | Director | $3,365,904 | -$897,671 | -21% | Filing P/S | 28 Aug 2026 |
| Matthew Leibel | Chief Technology Officer | $2,044,956 | Mixed | 19 Dec 2024 | ||
| Ranjana B. Clark | Director | $1,784,070 | Mixed | 10 Mar 2026 | ||
| Roy Azevedo | Director | $1,736,111 | Mixed | 10 Mar 2026 | ||
| James M. Rallo | Chief Financial Officer | $1,369,327 | Filing P/S | 20 Feb 2024 | ||
| Emily Rollins | Director | $1,293,622 | -$593,433 | -31% | Filing P/S | 19 Aug 2026 |
| George Hornig | Director | $1,262,117 | Mixed | 31 Aug 2023 | ||
| Kathy Mayerhofer | Chief Sales Officer | $1,246,989 | Mixed | 14 Mar 2024 | ||
| Deborah Bial | Director | $536,187 | Mixed | 11 Mar 2025 |
Recent insider transactions for Xometry, Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Randolph Altschuler | XMTR | Class A Common Stock | Sale | -1.78% | $908,217 | $90.82 | -10,000 | 551,270 | 01 Sep 2026 | Held by spouse |
| Katharine Weymouth | XMTR | Class A Common Stock | Sale | -12.4% | $476,150 | $95.23 | -5,000 | 35,345 | 31 Aug 2026 | Direct |
| Katharine Weymouth | XMTR | Class A Common Stock | Options Exercise | 14.2% | 5,000 | 40,345 | 31 Aug 2026 | Direct | ||
| Katharine Weymouth | XMTR | Stock Option (Right to Buy) | Options Exercise | -100% | -5,000 | 0 | 31 Aug 2026 | Direct | ||
| Katharine Weymouth | XMTR | Class A Common Stock | Sale | -12.4% | $471,518 | $94.30 | -5,000 | 35,345 | 28 Aug 2026 | Direct |
| Katharine Weymouth | XMTR | Class A Common Stock | Options Exercise | 14.2% | 5,000 | 40,345 | 28 Aug 2026 | Direct | ||
| Katharine Weymouth | XMTR | Stock Option (Right to Buy) | Options Exercise | -100% | -5,000 | 0 | 28 Aug 2026 | Direct | ||
| Vaidyanathan Raghavan | XMTR | Class A Common Stock | Sale | -3.55% | $483,825 | $96.76 | -5,000 | 135,777 | 27 Aug 2026 | Direct |
| Randolph Altschuler | XMTR | Class A Common Stock | Gift | -100% | -85,582 | 0 | 20 Aug 2026 | Held by the 2021 Tigers Trust | ||
| Emily Rollins | XMTR | Class A Common Stock | Sale | -24.8% | $421,528 | $84.31 | -5,000 | 15,136 | 19 Aug 2026 | Direct |
| Emily Rollins | XMTR | Class A Common Stock | Options Exercise | 33% | 5,000 | 20,136 | 19 Aug 2026 | Direct | ||
| Emily Rollins | XMTR | Stock Option (Right to Buy) | Options Exercise | 13.6% | 5,000 | 41,650 | 19 Aug 2026 | Direct | ||
| Sanjeev Singh Sahni | XMTR | Class A Common Stock | Sale | -0.82% | $135,279 | $90.19 | -1,500 | 182,403 | 17 Aug 2026 | Direct |
| Fabio Rosati | XMTR | Class A Common Stock | Sale | -2.03% | $170,465 | $89.72 | -1,900 | 91,667 | 11 Aug 2026 | by The Fabio Rosati 2022 Family Trust |
| Fabio Rosati | XMTR | Class A Common Stock | Sale | -7.97% | $740,705 | $91.44 | -8,100 | 93,567 | 10 Aug 2026 | by The Fabio Rosati 2022 Family Trust |
| James Miln | XMTR | Class A Common Stock | Sale | -0.84% | $131,878 | $87.92 | -1,500 | 177,631 | 06 Aug 2026 | Direct |
| Sanjeev Singh Sahni | XMTR | Class A Common Stock | Award | 28.2% | 40,506 | 183,903 | 03 Jul 2026 | Direct | ||
| Randolph Altschuler | XMTR | Class A Common Stock | Sale | -1.32% | $533,869 | $93.30 | -5,722 | 428,750 | 02 Jul 2026 | Direct |
| Vaidyanathan Raghavan | XMTR | Class A Common Stock | Sale | -1.31% | $173,938 | $93.21 | -1,866 | 140,777 | 02 Jul 2026 | Direct |
| Subir Dutt | XMTR | Class A Common Stock | Sale | -1.13% | $100,204 | $93.39 | -1,073 | 93,716 | 02 Jul 2026 | Direct |
| James Miln | XMTR | Class A Common Stock | Sale | -1.32% | $223,146 | $93.29 | -2,392 | 179,131 | 02 Jul 2026 | Direct |
| James Miln | XMTR | Class A Common Stock | Sale | -0.82% | $145,588 | $97.06 | -1,500 | 181,523 | 01 Jul 2026 | Direct |
| Lukas Alexander Biewald | XMTR | Class A Common Stock | Purchase | 582.7% | $3,999,930 | $85.00 | 47,058 | 55,134 | 03 Jun 2026 | Direct |
| James Miln | XMTR | Class A Common Stock | Sale | -0.81% | $145,345 | $96.90 | -1,500 | 183,023 | 01 Jun 2026 | Direct |
| Subir Dutt | XMTR | Class A Common Stock | Sale | -2.57% | $237,500 | $95.00 | -2,500 | 94,789 | 27 May 2026 | Direct |
| Randolph Altschuler | XMTR | Class A Common Stock | Sale | -4.21% | $1,756,761 | $87.84 | -20,000 | 455,248 | 21 May 2026 | Held by the Altschuler Family Trust (2020) |
| Randolph Altschuler | XMTR | Class A Common Stock | Sale | -5.07% | $2,635,973 | $87.87 | -30,000 | 561,270 | 21 May 2026 | Held by spouse |
| Lukas Alexander Biewald | XMTR | Class A Common Stock | Award | 8,076 | 8,076 | 20 May 2026 | Direct | |||
| Subir Dutt | XMTR | Class A Common Stock | Sale | -4.84% | $440,896 | $89.20 | -4,943 | 97,289 | 18 May 2026 | Direct |
| Subir Dutt | XMTR | Class A Common Stock | Sale | -2.39% | $212,500 | $85.00 | -2,500 | 102,232 | 13 May 2026 | Direct |
| Subir Dutt | XMTR | Class A Common Stock | Sale | -4.56% | $399,294 | $79.86 | -5,000 | 104,732 | 11 May 2026 | Direct |
| James Miln | XMTR | Class A Common Stock | Sale | -0.81% | $119,530 | $79.69 | -1,500 | 184,523 | 11 May 2026 | Direct |
| Randolph Altschuler | XMTR | Class A Common Stock | Sale | -1.3% | $238,655 | $41.72 | -5,721 | 434,472 | 02 Apr 2026 | Direct |
| Sanjeev Singh Sahni | XMTR | Class A Common Stock | Sale | -0.77% | $46,402 | $41.77 | -1,111 | 143,397 | 02 Apr 2026 | Direct |
| Subir Dutt | XMTR | Class A Common Stock | Sale | -0.63% | $29,188 | $41.76 | -699 | 109,732 | 02 Apr 2026 | Direct |
| Vaidyanathan Raghavan | XMTR | Class A Common Stock | Sale | -1.29% | $77,893 | $41.77 | -1,865 | 142,643 | 02 Apr 2026 | Direct |
| James Miln | XMTR | Class A Common Stock | Sale | -1.27% | $99,790 | $41.72 | -2,392 | 186,023 | 02 Apr 2026 | Direct |
| James Miln | XMTR | Class A Common Stock | Sale | -0.79% | $63,049 | $42.03 | -1,500 | 188,415 | 01 Apr 2026 | Direct |
| Emily Rollins | XMTR | Class A Common Stock | Sale | -6.2% | $42,017 | $42.02 | -1,000 | 15,136 | 01 Apr 2026 | Direct |
| Emily Rollins | XMTR | Class A Common Stock | Options Exercise | 6.61% | 1,000 | 16,136 | 01 Apr 2026 | Direct | ||
| Emily Rollins | XMTR | Stock Option (Right to Buy) | Options Exercise | -2.66% | -1,000 | 36,650 | 01 Apr 2026 | Direct | ||
| Randolph Altschuler | XMTR | Class A Common Stock | Award | 18.2% | 67,816 | 440,193 | 10 Mar 2026 | Direct | ||
| James Miln | XMTR | Class A Common Stock | Award | 18.1% | 29,064 | 189,915 | 10 Mar 2026 | Direct | ||
| Vaidyanathan Raghavan | XMTR | Class A Common Stock | Award | 25% | 16,082 | 80,386 | 10 Mar 2026 | Direct | ||
| Sanjeev Singh Sahni | XMTR | Class A Common Stock | Award | 27.9% | 31,486 | 144,508 | 10 Mar 2026 | Direct | ||
| Subir Dutt | XMTR | Class A Common Stock | Award | 24.6% | 21,798 | 110,431 | 10 Mar 2026 | Direct | ||
| Fabio Rosati | XMTR | Class A Common Stock | Award | 10% | 3,681 | 40,427 | 10 Mar 2026 | Direct | ||
| Roy Azevedo | XMTR | Class A Common Stock | Award | 18.4% | 4,989 | 32,073 | 10 Mar 2026 | Direct | ||
| Ranjana B. Clark | XMTR | Class A Common Stock | Award | 12.6% | 3,681 | 32,959 | 10 Mar 2026 | Direct | ||
| Emily Rollins | XMTR | Class A Common Stock | Award | 32.1% | 3,681 | 15,136 | 10 Mar 2026 | Direct |
* marks a reported price that did not pass the local price check.