Alamar Biosciences, Inc. (ALMR) IPO — S-1 Filing, Stock & Insider Activity

Alamar Biosciences, Inc. IPO — Status & S-1 Filing

Ticker: ALMR
Status: Priced — IPO complete
S-1 filed: 2026-03-27
Effective: 2026-04-20
IPO / pricing date: 2026-04-17
Exchange: NASDAQ
Expected price range: $15.00–$17.00
Shares offered: 11,250,000
SEC CIK: 0002104204 · View the S-1 on SEC EDGAR →

Track every registration update on the InsiderAlpha IPO tracker.

Updated Jul 16, 2026 · Last SEC filing 2026-04-22

Alamar Biosciences, Inc. (ALMR) has filed 9 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-04-22. 3 Form 8-K material event filings were reported by ALMR in the last 90 days. InsiderAlpha tracks every ALMR SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About Alamar Biosciences, Inc. (ALMR)

SEC CIK	0002104204

90-Day SEC Filing Activity

Form 4 filings (90d)	9
Form 8-K filings (90d)	3
Latest Form 4 filing	2026-04-22

Recent ALMR Insider Transactions (Form 4)

Date	Insider	Role	Transaction	Shares	Price	Value	Filing
2026-04-20	Illumina Innovation Fund II GP, L.L.C.	Insider	J — Other acquisition / disposition	922.2K	—	—	SEC
2026-04-20	Illumina Innovation Fund II GP, L.L.C.	Insider	J — Other acquisition / disposition	5.51M	—	—	SEC
2026-04-20	Illumina Innovation Fund II GP, L.L.C.	Insider	J — Other acquisition / disposition	5.51M	—	—	SEC
2026-04-20	Illumina Innovation Fund II GP, L.L.C.	Insider	J — Other acquisition / disposition	346.0K	—	—	SEC
2026-04-20	Illumina Innovation Fund II GP, L.L.C.	Insider	J — Other acquisition / disposition	271.8K	—	—	SEC
2026-04-20	Illumina Innovation Fund II GP, L.L.C.	Insider	P — Open-market purchase	235.3K	$17.00	$4.00M	SEC
2026-04-20	White Timothy Ogden	President	J — Other acquisition / disposition	454.6K	—	—	SEC
2026-04-20	White Timothy Ogden	President	J — Other acquisition / disposition	454.6K	—	—	SEC
2026-04-20	White Timothy Ogden	President	A — Grant or award	37.2K	$0.00	—	SEC
2026-04-20	Chen Shiping	Chief Operating Officer	J — Other acquisition / disposition	320.5K	—	—	SEC
2026-04-20	Chen Shiping	Chief Operating Officer	J — Other acquisition / disposition	72.9K	—	—	SEC
2026-04-20	Chen Shiping	Chief Operating Officer	J — Other acquisition / disposition	722.9K	—	—	SEC
2026-04-20	Chen Shiping	Chief Operating Officer	J — Other acquisition / disposition	722.9K	$0.00	—	SEC
2026-04-20	Chen Shiping	Chief Operating Officer	A — Grant or award	37.2K	$0.00	—	SEC
2026-04-20	Illumina Innovation Fund II GP, L.L.C.	Insider	J — Other acquisition / disposition	4.59M	—	—	SEC

All transactions sourced from SEC EDGAR Form 4 filings for Alamar Biosciences, Inc. (ALMR). Updated in real time as new filings are submitted to the SEC.

Most-Active ALMR Insiders — Last 90 Days

Insider	Form 4 filings	Total transaction value
Luo Yuling	29	—
Qiming Corporate GP VI, Ltd.	20	—
White Timothy Ogden	18	—
Naclerio Nicholas	15	$4.00M
Chen Shiping	13	—

Recent ALMR Form 8-K Material Events

2026-07-15 — Item 8.01 [SEC]
2026-05-08 — Item 2.02, 9.01 [SEC]
2026-04-20 — Item 5.03, 8.01, 9.01 · Financing · positive [SEC]
Alamar Biosciences completed its initial public offering on April 20, 2026, issuing 12,937,500 shares at $17.00 per share for gross proceeds of approximately $219.9 million. The company simultaneously amended and restated its certificate of incorporation and bylaws in connection

Recent Insider Filings

2026-04-22 — Qiming Corporate GP VI, Ltd. (Insider)
2026-04-21 — Illumina Innovation Fund II GP, L.L.C. (Insider)
2026-04-21 — Chambers Rebecca (Insider)
2026-04-21 — Witney Frank (Insider)
2026-04-21 — White Timothy Ogden (President)

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in ALMR insider filings:

P	Open-market purchase by the insider
S	Open-market sale by the insider
A	Grant, award, or other acquisition from the issuer
M	Exercise or conversion of derivative security (e.g. options)
F	Payment of exercise price or tax liability via share withholding
G	Bona-fide gift of securities
D	Disposition to the issuer (e.g. share buyback participation)
J	Other acquisition or disposition
X	Exercise of in-the-money or at-the-money derivative security
C	Conversion of derivative security
V	Transaction voluntarily reported earlier than required

ALMR Insider Trading — FAQ

What is the latest insider trade for ALMR?: Alamar Biosciences, Inc. (ALMR) had 9 insider filings in the last 90 days, with the most recent on 2026-04-22. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying ALMR stock?: 0 insider purchases of ALMR were filed in the last 90 days.
How many insiders are selling ALMR stock?: 0 insider sales of ALMR were filed in the last 90 days.
Where can I see ALMR SEC filings (Form 4, 10-K, 10-Q, 8-K)?: InsiderAlpha aggregates every ALMR SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

Learn More

Open the live ALMR dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.