Comparable stake leader
Jack W. Schuler
SEC ownership of BIODESIX INC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001439725.
Disclosed value leader
Jack W. Schuler
Comparable rows
45/50
Latest evidence
31 Mar 2026
- Public ticker
- BDSX on Nasdaq
- Parsed ownership sources
- 3/4/5, 13D/G, and 13F
- Largest SEC-reported holder
- Jack W. Schuler
- Latest 13D/G holder
- Jack W. Schuler
- Latest parsed ownership date
- 31 Mar 2026
- Issuer CIK
- 0001439725
- Issuer location
- Louisville, CO
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of BIODESIX 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
Jack W. Schuler
Disclosed value leader
Jack W. Schuler
Comparable rows
45/50
Latest evidence
31 Mar 2026
3/4/5
13D/G
13F
Lead comparable stake: 24%
5 rows are not safely comparable across share classes.
13D/G row: Jack W. Schuler
Showing 1-8 of 50 holder rows.
Quick read
Jack W. Schuler leads the comparable SEC ownership view at 24%.
45 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 Jack W. Schuler's linked filing trail.
Comparable ownership
Top 5
Jack W. Schuler
24%
Orin Hirschman
7.7%
Telemark Asset Management, LLC
5.4%
PERCEPTIVE ADVISORS LLC
4.6%
Soleus Capital Master Fund, L.P.
4.1%
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 |
|---|---|---|---|---|---|
| Jack W. Schuler |
3/4/5
13D/G
Emeritus Director, 10%+ Owner · SCHULER JACK W
|
24%
from 13D/G
|
$23,551,330
2,313,210 shares
|
+$3,584,297 | 23 Jan 2026 |
| Orin Hirschman |
13D/G
|
7.7%
|
$5,156,630
758,328 shares
|
$0 | 31 Mar 2026 |
| Telemark Asset Management, LLC |
13F
13D/G
Company
|
5.4%
from 13D/G
|
$7,102,448
489,824 shares
|
— | 31 Mar 2026 |
| PERCEPTIVE ADVISORS LLC |
13D/G
|
4.6%
|
$3,289,119
483,694 shares
|
-$48,893,265 | 31 Mar 2026 |
| Soleus Capital Master Fund, L.P. |
13D/G
|
4.1%
|
$2,832,873
416,599 shares
|
$0 | 31 Mar 2026 |
| AIGH Capital Management LLC |
13F
Company
|
7.8%
|
$10,995,756
758,328 shares
|
— | 31 Mar 2026 |
| Aberdeen Group plc |
13F
Company
|
4.7%
|
$6,647,351
458,438 shares
|
— | 31 Mar 2026 |
| Soleus Capital Management, L.P. |
13F
Company
|
4.3%
|
$6,040,686
416,599 shares
|
— | 31 Mar 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 buying over the last 12 months. Net value: +$3,463,449.
Buys
$3,584,297
Insiders: 1
Sells
$120,847
Insiders: 5
Net
+$3,463,449
Shares: +3,653,632
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 3,670,837
Shares: 17,205
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 182,465 | 10,999 | $2,084,297 | $116,103 | +$1,968,194 |
| 6-9 | 0 | 300 | $0 | $2,286 | -$2,286 |
| 9-12 | 3,488,372 | 5,906 | $1,500,000 | $2,459 | +$1,497,541 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-15 of 15 reporting-owner rows connected to BIODESIX INC. Open a relationship link for the CIK-to-CIK filing trail.
Rows
15
Largest Forms 3/4/5 holder
Jack W. Schuler
Net 12M change
+$3,463,450
Latest report
31 Mar 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Jack W. Schuler | Emeritus Director, 10%+ Owner | $23,551,330 | +$3,584,297 | +18% | Mixed | 23 Jan 2026 |
| John Patience | Director, Chairman | $2,555,541 | Mixed | 31 Mar 2026 | ||
| Scott Hutton | President & CEO, Director | $981,155 | -$65,840 | -6.3% | Mixed | 20 Feb 2026 |
| Charles M. Watts | Director | $389,740 | Mixed | 31 Mar 2025 | ||
| Robin Harper Cowie | CFO, Sec'y & Treasurer | $315,954 | -$19,545 | -5.8% | Mixed | 20 Feb 2026 |
| Gary Anthony Pestano | Chief Development Officer | $245,279 | -$15,336 | -5.9% | Mixed | 20 Feb 2026 |
| Kieran O'Kane | Chief Commercial Officer | $234,037 | -$15,541 | -6.2% | Mixed | 20 Feb 2026 |
| Hany Massarany | Director | $133,092 | Mixed | 02 Jan 2026 | ||
| Jean M. Franchi | Director | $99,943 | Mixed | 02 Jan 2026 | ||
| Chris Vazquez | Chief Accounting Officer | $61,897 | -$4,585 | -6.9% | Mixed | 20 Feb 2026 |
| Ryan H. Siurek | Chief Accounting Officer | $53,711 | Mixed | 08 May 2023 | ||
| Robert William Georgantas III | Chief Scientific Officer | $46,836 | Mixed | 21 Nov 2022 | ||
| Matthew W. Strobeck | Director | $22,565 | Mixed | 02 Jan 2026 | ||
| Lawrence T. Kennedy Jr. | Director, 10%+ Owner | $19,608 | Mixed | 02 Jan 2026 | ||
| Jon Faiz Kayyem | Director | $19,608 | Mixed | 02 Jan 2026 |
Recent insider transactions for BIODESIX 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| John Patience | BDSX | Common Stock | Options Exercise | 6.01% | 1,361 | 24,022 | 31 Mar 2026 | Direct | ||
| John Patience | BDSX | Restricted Stock Units | Options Exercise | -25% | -1,361 | 4,082 | 31 Mar 2026 | Direct | ||
| Gary Anthony Pestano | BDSX | Common Stock | Sale | -5.09% | $7,103 | $12.78 | -556 | 10,359 | 23 Feb 2026 | Direct |
| Kieran O'Kane | BDSX | Common Stock | Sale | -5.17% | $6,835 | $12.78 | -535 | 9,819 | 23 Feb 2026 | Direct |
| Robin Harper Cowie | BDSX | Common Stock | Sale | -3.19% | $6,835 | $12.78 | -535 | 16,231 | 23 Feb 2026 | Direct |
| Chris Vazquez | BDSX | Common Stock | Sale | -11.7% | $2,696 | $12.78 | -211 | 1,586 | 23 Feb 2026 | Direct |
| Scott Hutton | BDSX | Common Stock | Sale | -2.96% | $19,036 | $12.78 | -1,490 | 48,767 | 23 Feb 2026 | Direct |
| Gary Anthony Pestano | BDSX | Common Stock | Options Exercise | 16.3% | 1,528 | 10,915 | 20 Feb 2026 | Direct | ||
| Gary Anthony Pestano | BDSX | Restricted Stock Units | Options Exercise | -25% | -1,528 | 4,582 | 20 Feb 2026 | Direct | ||
| Kieran O'Kane | BDSX | Common Stock | Options Exercise | 16.5% | 1,469 | 10,354 | 20 Feb 2026 | Direct | ||
| Kieran O'Kane | BDSX | Restricted Stock Units | Options Exercise | -25% | -1,469 | 4,406 | 20 Feb 2026 | Direct | ||
| Robin Harper Cowie | BDSX | Common Stock | Options Exercise | 9.6% | 1,469 | 16,766 | 20 Feb 2026 | Direct | ||
| Robin Harper Cowie | BDSX | Restricted Stock Units | Options Exercise | -25% | -1,469 | 4,406 | 20 Feb 2026 | Direct | ||
| Chris Vazquez | BDSX | Common Stock | Options Exercise | 45.6% | 563 | 1,797 | 20 Feb 2026 | Direct | ||
| Chris Vazquez | BDSX | Restricted Stock Units | Options Exercise | -25% | -563 | 1,689 | 20 Feb 2026 | Direct | ||
| Scott Hutton | BDSX | Common Stock | Options Exercise | 10.7% | 4,844 | 50,257 | 20 Feb 2026 | Direct | ||
| Scott Hutton | BDSX | Restricted Stock Units | Options Exercise | -25% | -4,844 | 14,531 | 20 Feb 2026 | Direct | ||
| Kieran O'Kane | BDSX | Common Stock | Sale | -6.17% | $5,889 | $10.08 | -584 | 8,885 | 10 Feb 2026 | Direct |
| Chris Vazquez | BDSX | Common Stock | Sale | -7.57% | $1,018 | $10.08 | -101 | 1,234 | 10 Feb 2026 | Direct |
| Scott Hutton | BDSX | Common Stock | Sale | -7.27% | $35,889 | $10.08 | -3,559 | 45,413 | 10 Feb 2026 | Direct |
| Robin Harper Cowie | BDSX | Common Stock | Sale | -5.8% | $9,489 | $10.08 | -941 | 15,297 | 10 Feb 2026 | Direct |
| Gary Anthony Pestano | BDSX | Common Stock | Sale | -5.44% | $5,445 | $10.08 | -540 | 9,387 | 10 Feb 2026 | Direct |
| Kieran O'Kane | BDSX | Common Stock | Options Exercise | 20.3% | 1,600 | 9,469 | 09 Feb 2026 | Direct | ||
| Kieran O'Kane | BDSX | Restricted Stock Units | Options Exercise | -100% | -1,600 | 0 | 09 Feb 2026 | Direct | ||
| Chris Vazquez | BDSX | Common Stock | Options Exercise | 24.5% | 263 | 1,335 | 09 Feb 2026 | Direct | ||
| Chris Vazquez | BDSX | Restricted Stock Units | Options Exercise | -100% | -263 | 0 | 09 Feb 2026 | Direct | ||
| Scott Hutton | BDSX | Common Stock | Options Exercise | 25.6% | 9,998 | 48,972 | 09 Feb 2026 | Direct | ||
| Scott Hutton | BDSX | Restricted Stock Units | Options Exercise | -100% | -9,998 | 0 | 09 Feb 2026 | Direct | ||
| Robin Harper Cowie | BDSX | Common Stock | Options Exercise | 18.9% | 2,584 | 16,238 | 09 Feb 2026 | Direct | ||
| Robin Harper Cowie | BDSX | Restricted Stock Units | Options Exercise | -100% | -2,584 | 0 | 09 Feb 2026 | Direct | ||
| Gary Anthony Pestano | BDSX | Common Stock | Options Exercise | 17.5% | 1,481 | 9,927 | 09 Feb 2026 | Direct | ||
| Gary Anthony Pestano | BDSX | Restricted Stock Units | Options Exercise | -100% | -1,481 | 0 | 09 Feb 2026 | Direct | ||
| Jack W. Schuler | BDSX | Common Stock | Purchase | 1.3% | $236,064 | $11.80 | 20,000 | 1,563,210 | 26 Jan 2026 | By Jack W. Schuler Living Trust |
| Jack W. Schuler | BDSX | Common Stock | Purchase | 5.47% | $944,672 | $11.81 | 80,000 | 1,543,210 | 23 Jan 2026 | By Jack W. Schuler Living Trust |
| Jack W. Schuler | BDSX | Common Stock | Purchase | 5.97% | $903,561 | $10.96 | 82,465 | 1,463,210 | 22 Jan 2026 | By Jack W. Schuler Living Trust |
| Chris Vazquez | BDSX | Common Stock | Sale | -7.19% | $676 | $8.15 | -83 | 1,072 | 16 Jan 2026 | Direct |
| Gary Anthony Pestano | BDSX | Common Stock | Sale | -3.41% | $2,428 | $8.15 | -298 | 8,446 | 16 Jan 2026 | Direct |
| Kieran O'Kane | BDSX | Common Stock | Sale | -3.65% | $2,428 | $8.15 | -298 | 7,869 | 16 Jan 2026 | Direct |
| Scott Hutton | BDSX | Common Stock | Sale | -2.43% | $7,905 | $8.15 | -970 | 38,974 | 16 Jan 2026 | Direct |
| Robin Harper Cowie | BDSX | Common Stock | Sale | -2.14% | $2,428 | $8.15 | -298 | 13,654 | 16 Jan 2026 | Direct |
| Chris Vazquez | BDSX | Common Stock | Options Exercise | 23.4% | 219 | 1,155 | 15 Jan 2026 | Direct | ||
| Chris Vazquez | BDSX | Restricted Stock Units | Options Exercise | -33.4% | -219 | 436 | 15 Jan 2026 | Direct | ||
| Gary Anthony Pestano | BDSX | Common Stock | Options Exercise | 10.1% | 805 | 8,744 | 15 Jan 2026 | Direct | ||
| Gary Anthony Pestano | BDSX | Restricted Stock Units | Options Exercise | -33.4% | -805 | 1,609 | 15 Jan 2026 | Direct | ||
| Kieran O'Kane | BDSX | Common Stock | Options Exercise | 10.9% | 805 | 8,167 | 15 Jan 2026 | Direct | ||
| Kieran O'Kane | BDSX | Restricted Stock Units | Options Exercise | -33.4% | -805 | 1,609 | 15 Jan 2026 | Direct | ||
| Scott Hutton | BDSX | Common Stock | Options Exercise | 7.06% | 2,633 | 39,944 | 15 Jan 2026 | Direct | ||
| Scott Hutton | BDSX | Restricted Stock Units | Options Exercise | -33.3% | -2,633 | 5,265 | 15 Jan 2026 | Direct | ||
| Robin Harper Cowie | BDSX | Common Stock | Options Exercise | 6.12% | 805 | 13,952 | 15 Jan 2026 | Direct | ||
| Robin Harper Cowie | BDSX | Restricted Stock Units | Options Exercise | -33.4% | -805 | 1,609 | 15 Jan 2026 | Direct |
* marks a reported price that did not pass the local price check.