SC Filed 2019-05-21 Event — SEC 0000905148-19-000603 →

SCHULER JACK W → QUIDEL CORP /DE/

Stake: — Shares: —

Composite Decision Signal · PASS (LOW BASE-RATE EDGE) Conviction Score: 2/100 · Filer 90d Win Rate: 17% · Hist. 90d Edge: -14.1%

Filer track record (6 filings): 17% 90d win rate, -9.1% 90d edge

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)

0 transactions

0 buys · 0 sales · 0 awards/exercises

Issuer Cluster

2 13D/G filings on this issuer

1 other filing besides this one

Filer Track Record

25 filings by this filer

24 other filings in the data moat

Short Interest

—

Not in latest FINRA snapshot

Other 13D/G Filings on QUIDEL CORP /DE/

Filed	Form	Filer	Stake	Shares
2018-02-09	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 →
2026-01-27	SCHEDULE	BIODESIX INC BDSX	24.00%	2,333,945	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 →

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