Ex. 99.28(m)(1)(xii)

Amendment to JNL Series Trust

Amended and Restated Distribution Plan

This Amendment is made by JNL Series Trust, a Massachusetts business trust (the “Trust”), to its Amended and Restated Distribution Plan, as amended (the “Plan”).

Whereas, the Plan was adopted on July 1, 2017, and as amended by the Trust, on behalf of the funds listed on Schedule A to the Plan, in accordance with Rule 12b-1 under the Investment Company Act of 1940, as amended.

Whereas, the Board of Trustees of the Trust (the “Board”) has approved (i) one new Fund of the Trust (the “New Fund”), (ii) mergers for eleven Funds of the Trust into other Funds of the Trust (each, a “Merged Fund” and together, the “Merged Funds”), and (iii) fund name changes for six Funds of the Trust (the “Fund Name Changes”), as outlined below, effective April 27, 2026; and the Trust has agreed to amend Schedule A of the Plan to add the New Fund and the New Fund’s distribution fees, to remove each Merged Fund and each Merged Fund’s respective distribution fees, and to update the names of certain Funds pursuant to the Fund Name Changes, effective April 27, 2026.

New Fund

JNL/PPM America Emerging Markets Debt Fund.

Merged Funds

JNL/American Funds^® Capital World Bond Fund;

JNL/AB Sustainable Global Thematic Fund;

JNL/AQR Large Cap Defensive Style Fund;

JNL/Invesco Global Growth Fund;

JNL/JPMorgan Global Allocation Fund;

JNL/Lazard International Quality Growth Fund;

JNL/Morningstar PitchBook Listed Private Equity Index Fund;

JNL/T. Rowe Price Balanced Fund;

JNL/T. Rowe Price U.S. High Yield Fund;

10)

JNL/WCM China Quality Growth Fund; and

11)

JNL/WMC Global Real Estate Fund.

Fund Name Changes

JNL Multi-Manager U.S. Select Equity Fund change to JNL Multi-Manager Select Equity Fund;

JNL/American Funds^® Global Small Capitalization Fund change to JNL Multi-Manager Global Small Cap Fund;

JNL/ClearBridge Large Cap Growth Fund change to JNL/Fidelity Institutional AM^® & JPMorgan Large Cap Growth Fund;

JNL/Fidelity Institutional Asset Management^® Total Bond Fund change to JNL/Fidelity Institutional AM^® Total Bond Fund;

JNL/Invesco Diversified Dividend Fund change to JNL/MFS Equity Income Fund; and

JNL/William Blair International Leaders Fund change to JNL Multi-Manager International Equity Fund.

Now Therefore, in consideration of the mutual covenants contained herein and for other good and valuable consideration, the Trust agrees to amend the Plan as follows:

Schedule A to the Plan is hereby deleted and replaced in its entirety with Schedule A, dated April 27, 2026, attached hereto.

Except as specifically amended hereby, the Plan shall remain in full force and effect in accordance with its terms.

In Witness Whereof, the Trust has caused this Amendment to be executed and effective April 27, 2026.

	JNL Series Trust
	By:	*/s/ Kristen K. Leeman*
	Name:	Kristen K. Leeman
	Title:	Assistant Secretary

-1-

Schedule A

Dated April 27, 2026

Funds

Class

Maximum

12b-1 Fee ¹

JNL Bond Index Fund

Class I

None

JNL Emerging Markets Index Fund

Class I

None

JNL International Index Fund

Class I

None

JNL Mid Cap Index Fund

Class I

None

JNL Small Cap Index Fund

Class I

None

JNL/American Funds^® Balanced Fund

Class A

Class I

0.30%

None

JNL/American Funds^® Bond Fund of America Fund

Class A

Class I

0.30%

None

JNL/American Funds^® Capital Income Builder Fund

Class A

Class I

0.30%

None

JNL/American Funds^® Global Growth Fund

Class A

Class I

0.30%

None

JNL/American Funds^® Growth Fund

Class A

Class I

0.30%

None

JNL/American Funds^® Growth-Income Fund

Class A

Class I

0.30%

None

JNL/American Funds^® International Fund

Class A

Class I

0.30%

None

JNL/American Funds^® New World Fund

Class A

Class I

0.30%

None

JNL/American Funds^® Washington Mutual Investors Fund

Class A

Class I

0.30%

None

JNL Aggressive Growth Allocation Fund

Class A

Class I

0.30%

None

JNL Conservative Allocation Fund

Class A

Class I

0.30%

None

JNL Growth Allocation Fund

Class A

Class I

0.30%

None

JNL Growth ETF Allocation Fund

Class A

Class I

0.30%

None

JNL Moderate Allocation Fund

Class A

Class I

0.30%

None

JNL Moderate ETF Allocation Fund

Class A

Class I

0.30%

None

JNL Moderate Growth Allocation Fund

Class A

Class I

0.30%

None

JNL Moderate Growth ETF Allocation Fund

Class A

Class I

0.30%

None

JNL Multi-Manager Alternative Fund

Class A

Class I

0.30%

None

JNL Multi-Manager Emerging Markets Equity Fund

Class A

Class I

0.30%

None

JNL Multi-Manager Floating Rate Income Fund

Class A

Class I

0.30%

None

JNL Multi-Manager Global Small Cap Fund

Class A

Class I

0.30%

None

JNL Multi-Manager International Equity Fund

Class A

Class I

0.30%

None

JNL Multi-Manager International Small Cap Fund

Class A

Class I

0.30%

None

JNL Multi-Manager Mid Cap Fund

Class A

Class I

0.30%

None

JNL Multi-Manager Select Equity Fund

Class A

Class I

0.30%

None

A-1

Funds

Class

Maximum

12b-1 Fee ¹

JNL Multi-Manager Small Cap Growth Fund

Class A

Class I

0.30%

None

JNL Multi-Manager Small Cap Value Fund

Class A

Class I

0.30%

None

JNL/American Funds^® Growth Allocation Fund

Class A

Class I

0.30%

None

JNL/American Funds^® Moderate Allocation Fund

Class A

Class I

0.30%

None

JNL/American Funds^® Moderate Growth Allocation Fund

Class A

Class I

0.30%

None

JNL/BlackRock Global Allocation Fund

Class A

Class I

0.30%

None

JNL/BlackRock Global Natural Resources Fund

Class A

Class I

0.30%

None

JNL/BlackRock Large Cap Select Growth Fund

Class A

Class I

0.30%

None

JNL/Causeway International Value Select Fund

Class A

Class I

0.30%

None

JNL/Cohen & Steers U.S. Realty Fund

Class A

Class I

0.30%

None

JNL/DFA International Core Equity Fund

Class A

Class I

0.30%

None

JNL/DFA U.S. Core Equity Fund

Class A

Class I

0.30%

None

JNL/DFA U.S. Small Cap Fund

Class A

Class I

0.30%

None

JNL/DoubleLine^® Core Fixed Income Fund

Class A

Class I

0.30%

None

JNL/DoubleLine^® Emerging Markets Fixed Income Fund

Class A

Class I

0.30%

None

JNL/DoubleLine^® Shiller Enhanced CAPE^® Fund

Class A

Class I

0.30%

None

JNL/DoubleLine^® Total Return Fund

Class A

Class I

0.30%

None

JNL/Dreyfus Government Money Market Fund

Class A

Class I

0.30%

None

JNL/ Fidelity Institutional AM^® & JPMorgan Large Cap Growth Fund

Class A

Class I

0.30%

None

JNL/Fidelity Institutional AM^® Total Bond Fund

Class A

Class I

0.30%

None

JNL/First Sentier Global Infrastructure Fund

Class A

Class I

0.30%

None

JNL/Franklin Templeton Income Fund

Class A

Class I

0.30%

None

JNL/Goldman Sachs 4 Fund

Class A

Class I

0.30%

None

JNL/GQG Emerging Markets Equity Fund

Class A

Class I

0.30%

None

JNL/Invesco Small Cap Growth Fund

Class A

Class I

0.30%

None

JNL/JPMorgan Hedged Equity Fund

Class A

Class I

0.30%

None

JNL/JPMorgan Managed Aggressive Growth Fund

Class A

Class I

0.30%

None

JNL/JPMorgan Managed Conservative Fund

Class A

Class I

0.30%

None

JNL/JPMorgan Managed Growth Fund

Class A

Class I

0.30%

None

JNL/JPMorgan Managed Moderate Fund

Class A

Class I

0.30%

None

JNL/JPMorgan Managed Moderate Growth Fund

Class A

Class I

0.30%

None

A-2

Funds

Class

Maximum

12b-1 Fee ¹

JNL/JPMorgan MidCap Growth Fund

Class A

Class I

0.30%

None

JNL/JPMorgan Nasdaq^® Hedged Equity Fund

Class A

Class I

0.30%

None

JNL/JPMorgan U.S. Government & Quality Bond Fund

Class A

Class I

0.30%

None

JNL/JPMorgan U.S. Value Fund

Class A

Class I

0.30%

None

JNL/Loomis Sayles Global Growth Fund

Class A

Class I

0.30%

None

JNL/Lord Abbett Short Duration Income Fund

Class A

Class I

0.30%

None

JNL/Mellon Bond Index Fund

Class A

Class I

0.30%

None

JNL/Mellon Communication Services Sector Fund

Class A

Class I

0.30%

None

JNL/Mellon Consumer Discretionary Sector Fund

Class A

Class I

0.30%

None

JNL/Mellon Consumer Staples Sector Fund

Class A

Class I

0.30%

None

JNL/Mellon Dow^SM Index Fund

Class A

Class I

0.30%

None

JNL/Mellon Emerging Markets Index Fund

Class A

Class I

0.30%

None

JNL/Mellon Energy Sector Fund

Class A

Class I

0.30%

None

JNL/Mellon Financial Sector Fund

Class A

Class I

0.30%

None

JNL/Mellon Healthcare Sector Fund

Class A

Class I

0.30%

None

JNL/Mellon Industrials Sector Fund

Class A

Class I

0.30%

None

JNL/Mellon Information Technology Sector Fund

Class A

Class I

0.30%

None

JNL/Mellon International Index Fund

Class A

Class I

0.30%

None

JNL/Mellon Materials Sector Fund

Class A

Class I

0.30%

None

JNL/Mellon Nasdaq^® 100 Index Fund

Class A

Class I

0.30%

None

JNL/Mellon Real Estate Sector Fund

Class A

Class I

0.30%

None

JNL/Mellon S&P 400 MidCap Index Fund

Class A

Class I

0.30%

None

JNL/Mellon S&P 500 Index Fund

Class A

Class I

0.30%

None

JNL S&P 500 Index Fund

Class A

Class I

0.30%

None

JNL/Mellon Small Cap Index Fund

Class A

Class I

0.30%

None

JNL/Mellon U.S. Stock Market Index Fund

Class A

Class I

0.30%

None

JNL/Mellon Utilities Sector Fund

Class A

Class I

0.30%

None

JNL/Mellon World Index Fund

Class A

Class I

0.30%

None

JNL/Morningstar SMID Moat Focus Index Fund

Class A

Class I

0.30%

None

JNL/Morningstar U.S. Sustainability Index Fund

Class A

Class I

0.30%

None

JNL/Morningstar Wide Moat Index Fund

Class A

Class I

0.30%

None

A-3

Funds

Class

Maximum

12b-1 Fee ¹

JNL/MFS Equity Income Fund

Class A

Class I

0.30%

None

JNL/MFS Mid Cap Value Fund

Class A

Class I

0.30%

None

JNL/Neuberger Berman Commodity Strategy Fund

Class A

Class I

0.30%

None

JNL/Neuberger Berman Gold Plus Strategy Fund

Class A

Class I

0.30%

None

JNL/Neuberger Berman Strategic Income Fund

Class A

Class I

0.30%

None

JNL/Newton Equity Income Fund

Class A

Class I

0.30%

None

JNL/PIMCO Income Fund

Class A

Class I

0.30%

None

JNL/PIMCO Investment Grade Credit Bond Fund

Class A

Class I

0.30%

None

JNL/PIMCO Real Return Fund

Class A

Class I

0.30%

None

JNL/PPM America Emerging Markets Debt Fund

Class A

Class I

0.30%

None

JNL/PPM America High Yield Bond Fund

Class A

Class I

0.30%

None

JNL/PPM America Investment Grade Credit Fund

Class A

Class I

0.30%

None

JNL/PPM America Total Return Fund

Class A

Class I

0.30%

None

JNL/RAFI^® Fundamental U.S. Small Cap Fund

Class A

Class I

0.30%

None

JNL/RAFI^® Multi-Factor U.S. Equity Fund

Class A

Class I

0.30%

None

JNL/T. Rowe Price Capital Appreciation Equity Fund

Class A

Class I

0.30%

None

JNL/T. Rowe Price Capital Appreciation Fund

Class A

Class I

0.30%

None

JNL/T. Rowe Price Growth Stock Fund

Class A

Class I

0.30%

None

JNL/T. Rowe Price Mid-Cap Growth Fund

Class A

Class I

0.30%

None

JNL/T. Rowe Price Short-Term Bond Fund

Class A

Class I

0.30%

None

JNL/T. Rowe Price Value Fund

Class A

Class I

0.30%

None

JNL/Vanguard Growth ETF Allocation Fund

Class A

Class I

0.30%

None

JNL/Vanguard Moderate ETF Allocation Fund

Class A

Class I

0.30%

None

JNL/Vanguard Moderate Growth ETF Allocation Fund

Class A

Class I

0.30%

None

JNL/WCM Focused International Equity Fund

Class A

Class I

0.30%

None

JNL/Westchester Capital Event Driven Fund

Class A

Class I

0.30%

None

JNL/WMC Balanced Fund

Class A

Class I

0.30%

None

JNL/WMC Equity Income Fund

Class A

Class I

0.30%

None

JNL/WMC Value Fund

Class A

Class I

0.30%

None

¹ As a percentage of the average daily net assets attributable to the specified class of shares.

A-4