SCHEDULE Filed 2026-01-27 Event 2026-01-23 SEC 0000905148-26-000363 →

SCHULER JACK W → BIODESIX INC BDSX

Stake: 24.00% Shares: 2,333,945 CUSIP: 09075X207 Class: Common Stock, par value $0.001 per share

Item 4 — Purpose of Transaction

Item 4 of the Schedule 13D is hereby amended and supplemented as follows: Mr. Schuler transitioned to the role of emeritus director of the Issuer at the Issuer's 2025 Annual Meeting of Stockholders held on May 20, 2025.

Cross-References

Insider Activity (last 365d)

0 transactions

0 buys · 0 sales · 0 awards/exercises

Issuer Cluster

7 13D/G filings on this issuer

6 other filings besides this one

Filer Track Record

25 filings by this filer

24 other filings in the data moat

Short Interest · settle 2026-07-15

DTC 2.19

167,970 shares short · +59.3% vs prior

Post-Filing Returns · since 2026-01-23 on BDSX

+1 day

-14.1%

+5 days

-12.0%

+30 days

+8.8%

+60 days

+32.4%

+90 days

-15.2%

+180 days

+82.2%

Anchor price 11.74 on closest trading day on/after 2026-01-23. Source: Yahoo Finance daily adj_close (split + dividend adjusted).

Other 13D/G Filings on BIODESIX INC

Filed	Form	Filer	Stake	Shares
2026-06-18	SCHEDULE 13G	Soleus Capital Master Fund, L.P.	—	—	view →
2025-09-23	SCHEDULE	SCHULER JACK W	27.00%	2,151,480	view →
2025-09-03	SCHEDULE	SCHULER JACK W	26.00%	39,821,357	view →
2025-05-20	SCHEDULE	SCHULER JACK W	24.70%	36,332,985	view →
2023-08-11	SC	SCHULER JACK W	—	—	view →
2022-01-04	SC	SCHULER JACK W	—	—	view →

Other Filings by SCHULER JACK W

Filed	Form	Issuer	Stake	Shares
2026-06-11	SCHEDULE 13D/A	Aspira Women's Health Inc. AWHL	8.70%	4,052,587	view →
2025-09-23	SCHEDULE	BIODESIX INC BDSX	27.00%	2,151,480	view →
2025-09-03	SCHEDULE	BIODESIX INC BDSX	26.00%	39,821,357	view →
2025-05-20	SCHEDULE	BIODESIX INC BDSX	24.70%	36,332,985	view →
2025-03-10	SCHEDULE	Aspira Women's Health Inc. AWHL	14.70%	2,718,692	view →
2024-07-11	SC	Aspira Women's Health Inc. AWHL	—	—	view →
2023-08-11	SC	BIODESIX INC BDSX	—	—	view →
2023-06-20	SC	Accelerate Diagnostics, Inc	—	—	view →
2022-01-04	SC	BIODESIX INC BDSX	—	—	view →
2021-10-05	SC	Accelerate Diagnostics, Inc	—	—	view →
2021-07-02	SC	BIOLASE, INC	—	—	view →
2021-02-05	SC	YIELD10 BIOSCIENCE, INC.	—	—	view →
2020-08-31	SC	YIELD10 BIOSCIENCE, INC.	—	—	view →
2020-07-06	SC	Aspira Women's Health Inc. AWHL	—	—	view →
2020-06-12	SC	Aspira Women's Health Inc. AWHL	—	—	view →
2020-06-10	SC	BIOLASE, INC	—	—	view →
2020-05-15	SC	BIOLASE, INC	—	—	view →
2020-02-06	SC	YIELD10 BIOSCIENCE, INC.	—	—	view →
2019-07-02	SC	VERMILLION, INC. AWHL	—	—	view →
2019-06-26	SC	YIELD10 BIOSCIENCE, INC.	—	—	view →

Showing 20 of 24

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