diff --git a/app/controllers/mailing_lists_controller.rb b/app/controllers/mailing_lists_controller.rb
index 24032ba83..ddd0e3f59 100644
--- a/app/controllers/mailing_lists_controller.rb
+++ b/app/controllers/mailing_lists_controller.rb
@@ -4,6 +4,7 @@ class MailingListsController < ApplicationController
   before_action :require_access
 
   def create
+    MemberActivityRecorder.record(actor: current_user, key: 'mailing_list.subscribe')
     subscribe_to_newsletter(current_user)
     flash[:notice] = I18n.t('subscriptions.messages.mailing_list.subscribe')
 
@@ -11,6 +12,7 @@ def create
   end
 
   def destroy
+    MemberActivityRecorder.record(actor: current_user, key: 'mailing_list.unsubscribe')
     unsubscribe_from_newsletter(current_user)
     flash[:notice] = I18n.t('subscriptions.messages.mailing_list.unsubscribe')
 
diff --git a/app/controllers/member/details_controller.rb b/app/controllers/member/details_controller.rb
index 6800f420e..f348d67af 100644
--- a/app/controllers/member/details_controller.rb
+++ b/app/controllers/member/details_controller.rb
@@ -24,6 +24,7 @@ def update
     return render :edit unless @member.update(attrs)
 
     @member.newsletter ? subscribe_to_newsletter(@member) : unsubscribe_from_newsletter(@member)
+    MemberActivityRecorder.record(actor: @member, key: 'profile.updated')
     redirect_to step2_member_path
   end
 
diff --git a/app/controllers/members_controller.rb b/app/controllers/members_controller.rb
index fa659a3ea..79d52f2ac 100644
--- a/app/controllers/members_controller.rb
+++ b/app/controllers/members_controller.rb
@@ -24,6 +24,7 @@ def profile
 
   def update
     if @member.update(member_params)
+      MemberActivityRecorder.record(actor: current_user, key: 'profile.updated')
       notice = 'Your details have been updated.'
       redirect_to profile_path, notice:
     else
diff --git a/app/controllers/subscriptions_controller.rb b/app/controllers/subscriptions_controller.rb
index 2c86fe90c..535a2ea59 100644
--- a/app/controllers/subscriptions_controller.rb
+++ b/app/controllers/subscriptions_controller.rb
@@ -7,11 +7,13 @@ def index
     @member = MemberPresenter.new(current_user)
   end
 
-  def create
+  def create # rubocop:disable Metrics/MethodLength
     subscription = Subscription.new(group_id:, member: current_user)
 
     if subscription.save
       SubscriptionMailingListService.subscribe(subscription)
+      MemberActivityRecorder.record(actor: current_user, key: 'subscription.created',
+                                    trackable: subscription.group)
       send_welcome_email(current_user, subscription)
       flash[:notice] = I18n.t('subscriptions.messages.group.subscribe', chapter: subscription.group.chapter.city,
                                                                         role: subscription.group.name)
@@ -21,14 +23,18 @@ def create
     redirect_back fallback_location: root_path
   end
 
-  def destroy
+  def destroy # rubocop:disable Metrics/MethodLength
     # Don't error if subscription is not found
     subscription = current_user.subscriptions.find_by(group_id:)
     SubscriptionMailingListService.unsubscribe(subscription) if subscription
     subscription&.destroy
 
-    # Instead, rely on the group's existence (rather than the subscription)
     group = Group.find(group_id)
+    if subscription
+      MemberActivityRecorder.record(actor: current_user, key: 'subscription.removed',
+                                    trackable: group)
+    end
+
     flash[:notice] = I18n.t('subscriptions.messages.group.unsubscribe',
                             chapter: group.chapter.city,
                             role: group.name)
diff --git a/app/controllers/terms_and_conditions_controller.rb b/app/controllers/terms_and_conditions_controller.rb
index a0d3be421..036966c28 100644
--- a/app/controllers/terms_and_conditions_controller.rb
+++ b/app/controllers/terms_and_conditions_controller.rb
@@ -22,6 +22,7 @@ def update
       member = current_user
       member.accepted_toc_at = Time.zone.now
       member.save(validate: false)
+      MemberActivityRecorder.record(actor: member, key: 'toc.accepted')
       redirect_to previous_path
     else
       flash[notice] = I18n.t('terms_and_conditions.messages.notice')
diff --git a/spec/requests/member_activity_profile_spec.rb b/spec/requests/member_activity_profile_spec.rb
new file mode 100644
index 000000000..76951385c
--- /dev/null
+++ b/spec/requests/member_activity_profile_spec.rb
@@ -0,0 +1,35 @@
+# spec/requests/member_activity_profile_spec.rb
+require 'rails_helper'
+
+RSpec.describe 'Profile activity' do
+  let(:member) { Fabricate(:member, email: 'profile@example.com') }
+
+  before do
+    Fabricate(:auth_service, member:, provider: 'github', uid: 'profile-uid-1')
+    mock_auth_hash(provider: 'github', uid: 'profile-uid-1', email: member.email)
+    post '/auth/github/callback' # sign in via real OAuth callback
+  end
+
+  it 'records profile.updated on MembersController#update' do
+    put member_path(member), params: { member: { about_you: 'updated bio' } }
+
+    expect(PublicActivity::Activity.exists?(owner: member, key: 'profile.updated')).to be(true)
+  end
+
+  it 'records profile.updated on Member::DetailsController#update' do
+    put member_details_path, params: { member: { about_you: 'details bio', how_you_found_us: 'social_media' } }
+
+    expect(PublicActivity::Activity.exists?(owner: member, key: 'profile.updated')).to be(true)
+  end
+
+  it 'records toc.accepted' do
+    # Seed session[:previous_request_url] via a GET to root_path —
+    # accept_terms before_action fires, calls store_path, then redirects
+    # to terms_and_conditions (which skips accept_terms)
+    get root_path
+
+    put terms_and_conditions_path, params: { terms_and_conditions_form: { terms: '1' } }
+
+    expect(PublicActivity::Activity.exists?(owner: member, key: 'toc.accepted')).to be(true)
+  end
+end
diff --git a/spec/requests/member_activity_subscriptions_spec.rb b/spec/requests/member_activity_subscriptions_spec.rb
new file mode 100644
index 000000000..695c485f7
--- /dev/null
+++ b/spec/requests/member_activity_subscriptions_spec.rb
@@ -0,0 +1,31 @@
+# spec/requests/member_activity_subscriptions_spec.rb
+require 'rails_helper'
+
+RSpec.describe 'Subscription and mailing list activity' do
+  let(:member) { Fabricate(:member) }
+  let(:group) { Fabricate(:group) }
+
+  before do
+    Fabricate(:auth_service, member:, provider: 'github', uid: 'subs-uid-1')
+    mock_auth_hash(provider: 'github', uid: 'subs-uid-1', email: member.email)
+    post '/auth/github/callback' # sign in via real OAuth callback
+  end
+
+  it 'records subscription.created and subscription.removed' do
+    post subscriptions_path, params: { subscription: { group_id: group.id } }
+
+    expect(PublicActivity::Activity.exists?(owner: member, key: 'subscription.created')).to be(true)
+
+    delete destroy_subscriptions_path, params: { subscription: { group_id: group.id } }
+
+    expect(PublicActivity::Activity.exists?(owner: member, key: 'subscription.removed')).to be(true)
+  end
+
+  it 'records mailing_list.subscribe and unsubscribe' do
+    post mailing_lists_path
+    expect(PublicActivity::Activity.exists?(owner: member, key: 'mailing_list.subscribe')).to be(true)
+
+    delete mailing_lists_path
+    expect(PublicActivity::Activity.exists?(owner: member, key: 'mailing_list.unsubscribe')).to be(true)
+  end
+end