diff --git a/ui-tui/packages/hermes-ink/src/ink/parse-keypress.test.ts b/ui-tui/packages/hermes-ink/src/ink/parse-keypress.test.ts
index 58745b8c40..89c842c015 100644
--- a/ui-tui/packages/hermes-ink/src/ink/parse-keypress.test.ts
+++ b/ui-tui/packages/hermes-ink/src/ink/parse-keypress.test.ts
@@ -39,3 +39,60 @@ describe('parseMultipleKeypresses bracketed paste recovery', () => {
     expect(state.pasteBuffer).toBe('')
   })
 })
+
+describe('mouse wheel modifier decoding', () => {
+  // SGR mouse format: ESC [ < button ; col ; row M
+  // Wheel up = 64 (0x40), wheel down = 65 (0x41).
+  // Modifier bits: shift = 0x04, meta = 0x08, ctrl = 0x10.
+  const sgrWheel = (button: number) => `\x1b[<${button};10;10M`
+
+  it('plain wheel up has no modifiers', () => {
+    const [[key]] = parseMultipleKeypresses(INITIAL_STATE, sgrWheel(0x40))
+
+    expect(key).toMatchObject({ name: 'wheelup', ctrl: false, meta: false, shift: false })
+  })
+
+  it('plain wheel down has no modifiers', () => {
+    const [[key]] = parseMultipleKeypresses(INITIAL_STATE, sgrWheel(0x41))
+
+    expect(key).toMatchObject({ name: 'wheeldown', ctrl: false, meta: false, shift: false })
+  })
+
+  it('decodes meta (Alt/Option) on wheel up', () => {
+    const [[key]] = parseMultipleKeypresses(INITIAL_STATE, sgrWheel(0x40 | 0x08))
+
+    expect(key).toMatchObject({ name: 'wheelup', ctrl: false, meta: true, shift: false })
+  })
+
+  it('decodes meta (Alt/Option) on wheel down', () => {
+    const [[key]] = parseMultipleKeypresses(INITIAL_STATE, sgrWheel(0x41 | 0x08))
+
+    expect(key).toMatchObject({ name: 'wheeldown', ctrl: false, meta: true, shift: false })
+  })
+
+  it('decodes ctrl on wheel events', () => {
+    const [[key]] = parseMultipleKeypresses(INITIAL_STATE, sgrWheel(0x40 | 0x10))
+
+    expect(key).toMatchObject({ name: 'wheelup', ctrl: true, meta: false, shift: false })
+  })
+
+  it('decodes shift on wheel events', () => {
+    const [[key]] = parseMultipleKeypresses(INITIAL_STATE, sgrWheel(0x41 | 0x04))
+
+    expect(key).toMatchObject({ name: 'wheeldown', ctrl: false, meta: false, shift: true })
+  })
+
+  it('decodes combined modifiers', () => {
+    const [[key]] = parseMultipleKeypresses(INITIAL_STATE, sgrWheel(0x40 | 0x08 | 0x10))
+
+    expect(key).toMatchObject({ name: 'wheelup', ctrl: true, meta: true, shift: false })
+  })
+
+  it('decodes meta on legacy X10 wheel encoding', () => {
+    // X10: ESC [ M Cb Cx Cy where each byte is value+32.
+    const x10 = `\x1b[M${String.fromCharCode(0x40 + 0x08 + 32)}${String.fromCharCode(10 + 32)}${String.fromCharCode(10 + 32)}`
+    const [[key]] = parseMultipleKeypresses(INITIAL_STATE, x10)
+
+    expect(key).toMatchObject({ name: 'wheelup', meta: true })
+  })
+})
diff --git a/ui-tui/packages/hermes-ink/src/ink/parse-keypress.ts b/ui-tui/packages/hermes-ink/src/ink/parse-keypress.ts
index 56976d8a84..3a21aa2646 100644
--- a/ui-tui/packages/hermes-ink/src/ink/parse-keypress.ts
+++ b/ui-tui/packages/hermes-ink/src/ink/parse-keypress.ts
@@ -697,16 +697,17 @@ function parseKeypress(s: string = ''): ParsedKey {
   // never reach here. Mask with 0x43 (bits 6+1+0) to check wheel-flag
   // + direction while ignoring modifier bits (Shift=0x04, Meta=0x08,
   // Ctrl=0x10) — modified wheel events (e.g. Ctrl+scroll, button=80)
-  // should still be recognized as wheelup/wheeldown.
+  // should still be recognized as wheelup/wheeldown. Preserve those
+  // modifier bits for callers that bind modified wheel gestures.
   if ((match = SGR_MOUSE_RE.exec(s))) {
     const button = parseInt(match[1]!, 10)
 
     if ((button & 0x43) === 0x40) {
-      return createNavKey(s, 'wheelup', false)
+      return createWheelKey(s, 'wheelup', button)
     }
 
     if ((button & 0x43) === 0x41) {
-      return createNavKey(s, 'wheeldown', false)
+      return createWheelKey(s, 'wheeldown', button)
     }
 
     // Shouldn't reach here (parseMouseEvent catches non-wheel) but be safe
@@ -722,11 +723,11 @@ function parseKeypress(s: string = ''): ParsedKey {
     const button = s.charCodeAt(3) - 32
 
     if ((button & 0x43) === 0x40) {
-      return createNavKey(s, 'wheelup', false)
+      return createWheelKey(s, 'wheelup', button)
     }
 
     if ((button & 0x43) === 0x41) {
-      return createNavKey(s, 'wheeldown', false)
+      return createWheelKey(s, 'wheeldown', button)
     }
 
     return createNavKey(s, 'mouse', false)
@@ -834,3 +835,19 @@ function createNavKey(s: string, name: string, ctrl: boolean): ParsedKey {
     isPasted: false
   }
 }
+
+function createWheelKey(s: string, name: 'wheelup' | 'wheeldown', button: number): ParsedKey {
+  return {
+    kind: 'key',
+    name,
+    ctrl: !!(button & 0x10),
+    meta: !!(button & 0x08),
+    shift: !!(button & 0x04),
+    option: false,
+    super: false,
+    fn: false,
+    sequence: s,
+    raw: s,
+    isPasted: false
+  }
+}