Yi-Kuei Chen - 14 Sep 2026 Form 4/A - Amendment Insider Report for Apollomics Inc. (APLM)

Reporting relationship: Chief Operating Officer, Director
Issuer ticker: APLM
Reported as of: 14 Sep 2026
Net transaction value: $0
SEC form: 4/A - Amendment
Accepted by SEC: 24 Sep 2026, 19:54:47 UTC
Original report date: 17 Sep 2026
Prior SEC filing: 17 Aug 2026
Source filing: View source filing
Reporting owner signature: /s/ Alison M. Pear, Attorney-In-Fact

Key filing fact

Yi-Kuei Chen filed Form 4/A - Amendment for Apollomics Inc. (APLM) on 24 Sep 2026.

Key facts

This page summarizes Yi-Kuei Chen's Form 4/A - Amendment filing for Apollomics Inc. (APLM).
3 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 24 Sep 2026, 19:54.

Change

Previous filing in this sequence was filed on 17 Aug 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4/A - Amendment disclosures.

View source filing

Reporting Owners (1)

CIK 0002115232 Primary reporting owner

Chen Yi-Kuei

Relationship: Chief Operating Officer, Director
Address: 668 ARROW GRAND CIR. SUITE 206, COVINA
Signature: /s/ Alison M. Pear, Attorney-In-Fact
Signature date: 17 Sep 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

APLM transaction

CLASS A ORDINARY SHARES

Options Exercise

Transaction value
Shares: +5,000
Change %: +33%
Price: $0.000000^*
Shares after: 20,100
Date: 15 Sep 2026
Ownership: Direct
Footnotes: F1

APLM holding

CLASS A ORDINARY SHARES

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 121,248
Date: 14 Sep 2026
Ownership: Through Maxpro Investment Co., Ltd.
Footnotes: F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

APLM transaction Derivative

Stock Option (Right to Buy)

Award

Transaction value
Shares: +8,000
Change %
Price: $0.000000^*
Shares after: 8,000
Date: 14 Sep 2026
Ownership: Direct
Underlying class: CLASS A ORDINARY SHARES
Underlying amount: 8,000
Exercise price: $23.18
Footnotes: F3

APLM transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares: -5,000
Change %: -50%
Price: $0.000000^*
Shares after: 5,000
Date: 15 Sep 2026
Ownership: Direct
Underlying class: CLASS A ORDINARY SHARES
Underlying amount: 5,000
Exercise price
Footnotes: F4, F5

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 footnotes

Footnote F1

The amount reported includes a 100 share adjustment for shares previously owned but inadvertently omitted.

Footnote F2

The reporting person is a member of the Board of Directors of Maxpro Investment Co., Ltd. and is co-founder and managing director of Maxpro Ventures Ltd. Excludes 3,823 Class A Ordinary Shares issuable upon the exercise of warrants held directly by Maxpro Investment Co., Ltd., which were previously reported on the Form 3 filed March 18, 2026 and the Form 3/A filed April 14, 2026. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

Footnote F3

The stock option was granted under the Apollomics Inc. 2023 Incentive Award Plan on September 14, 2026. The option vests and becomes exercisable over a one-year period: fifty percent (50%) of the shares subject to the option vest on March 14, 2027 (six months from the grant date), and the remaining fifty percent (50%) vest on September 14, 2027 (twelve months from the grant date), subject to the reporting person's continued service to the Issuer through each applicable vesting date.

Footnote F4

Each restricted stock unit represents a contingent right to receive one Class A Ordinary Share

Footnote F5

RSUs were granted and previously reported on a Form 3 filed March 18, 2026 and a Form 3/A filed April 14, 2026. Of the initial RSU grant, 5,000 shares vested on each of February 9, 2026, March 15, 2026, June 15, 2026 and September 15, 2026. This transaction represents the vesting of 5,000 RSUs on September 15, 2026.

SEC remarks

This Form 4 is being amended to correct the expiration date of the stock option and clarify the ownership of shares now discussed in footnote (1).