PROPST DEBBIE F (President - HM Consumer) received a stock award from MILLERKNOLL, INC.

Compensation award — not an open‑market transaction. Less informative as a directional signal.

A · 7 awards

PROPST DEBBIE F

Filed: 8/5/2025ACC: 0001869938-25-000041

InsiderPROPST DEBBIE FCIK 1797945

→

IssuerMILLERKNOLL, INC.CIK 66382

Officer· President - HM Consumer

Since Jan 2020

-1.64K

Net shares

Net seller

$145.7K

Total sold

Open market trades

0B · 0S

Total transactions

16.38K acquired · 18.02K disposed

Non-Derivative Transactions18

Common Stock

Direct

M · Option Exercise

+4.63K

Price / share

—

Trade value

—

% of position

10.8%

8/1/2025

42.83K→47.46K

Common Stock

Direct

F · Tax Withholding

−2.39K

Price / share

$18.21

Trade value

$43.45K

% of position

5.0%

8/1/2025

47.46K→45.07K

Common Stock

Direct

M · Option Exercise

+5.39K

Price / share

—

Trade value

—

% of position

12.0%

8/1/2025

45.07K→50.46K

Common Stock

Direct

F · Tax Withholding

−2.67K

Price / share

$18.21

Trade value

$48.59K

% of position

5.3%

8/1/2025

50.46K→47.79K

Common Stock

Direct

A · Award

+682.00

Price / share

—

Trade value

—

% of position

1.4%

8/1/2025

47.79K→48.48K

Common Stock

Direct

F · Tax Withholding

−316.04

Price / share

$18.21

Trade value

$5.76K

% of position

0.7%

8/1/2025

48.48K→48.16K

Common Stock

Direct

A · Award

+979.00

Price / share

—

Trade value

—

% of position

2.0%

8/1/2025

48.16K→49.14K

Common Stock

Direct

F · Tax Withholding

−453.67

Price / share

$18.21

Trade value

$8.26K

% of position

0.9%

8/1/2025

49.14K→48.69K

Common Stock

Direct

A · Award

+2.04K

Price / share

—

Trade value

—

% of position

4.2%

8/1/2025

48.69K→50.73K

Common Stock

Direct

F · Tax Withholding

−947.65

Price / share

$18.21

Trade value

$17.26K

% of position

1.9%

8/1/2025

50.73K→49.78K

Common Stock

Direct

A · Award

+1.21K

Price / share

—

Trade value

—

% of position

2.4%

8/1/2025

49.78K→50.99K

Common Stock

Direct

F · Tax Withholding

−559.79

Price / share

$18.21

Trade value

$10.19K

% of position

1.1%

8/1/2025

50.99K→50.43K

Common Stock

Direct

A · Award

+741.00

Price / share

—

Trade value

—

% of position

1.5%

8/1/2025

50.43K→51.17K

Common Stock

Direct

F · Tax Withholding

−343.38

Price / share

$18.21

Trade value

$6.25K

% of position

0.7%

8/1/2025

51.17K→50.83K

Common Stock

Direct

A · Award

+181.00

Price / share

—

Trade value

—

% of position

0.4%

8/1/2025

50.83K→51.01K

Common Stock

Direct

F · Tax Withholding

−83.88

Price / share

$18.21

Trade value

$1.53K

% of position

0.2%

8/1/2025

51.01K→50.93K

Common Stock

Direct

A · Award

+523.00

Price / share

—

Trade value

—

% of position

1.0%

8/1/2025

50.93K→51.45K

Common Stock

Direct

F · Tax Withholding

−242.36

Price / share

$18.21

Trade value

$4.41K

% of position

0.5%

8/1/2025

51.45K→51.21K

Total

Net shares

+8.38K

Net value

-$145.71K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	8/1/2025	M · Option Exercise	+4.63K	—	—	10.8%	42.83K	47.46K
Common Stock Direct	8/1/2025	F · Tax Withholding	−2.39K	$18.21	$43.45K	5.0%	47.46K	45.07K
Common Stock Direct	8/1/2025	M · Option Exercise	+5.39K	—	—	12.0%	45.07K	50.46K
Common Stock Direct	8/1/2025	F · Tax Withholding	−2.67K	$18.21	$48.59K	5.3%	50.46K	47.79K
Common Stock Direct	8/1/2025	A · Award	+682.00	—	—	1.4%	47.79K	48.48K
Common Stock Direct	8/1/2025	F · Tax Withholding	−316.04	$18.21	$5.76K	0.7%	48.48K	48.16K
Common Stock Direct	8/1/2025	A · Award	+979.00	—	—	2.0%	48.16K	49.14K
Common Stock Direct	8/1/2025	F · Tax Withholding	−453.67	$18.21	$8.26K	0.9%	49.14K	48.69K
Common Stock Direct	8/1/2025	A · Award	+2.04K	—	—	4.2%	48.69K	50.73K
Common Stock Direct	8/1/2025	F · Tax Withholding	−947.65	$18.21	$17.26K	1.9%	50.73K	49.78K
Common Stock Direct	8/1/2025	A · Award	+1.21K	—	—	2.4%	49.78K	50.99K
Common Stock Direct	8/1/2025	F · Tax Withholding	−559.79	$18.21	$10.19K	1.1%	50.99K	50.43K
Common Stock Direct	8/1/2025	A · Award	+741.00	—	—	1.5%	50.43K	51.17K
Common Stock Direct	8/1/2025	F · Tax Withholding	−343.38	$18.21	$6.25K	0.7%	51.17K	50.83K
Common Stock Direct	8/1/2025	A · Award	+181.00	—	—	0.4%	50.83K	51.01K
Common Stock Direct	8/1/2025	F · Tax Withholding	−83.88	$18.21	$1.53K	0.2%	51.01K	50.93K
Common Stock Direct	8/1/2025	A · Award	+523.00	—	—	1.0%	50.93K	51.45K
Common Stock Direct	8/1/2025	F · Tax Withholding	−242.36	$18.21	$4.41K	0.5%	51.45K	51.21K
Total			+8.38K		-$145.71K

Derivative Transactions2

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Common Stock

4.63K shares

−4.63K

Strike price

Held after

59.45K

Exercisable

—

8/1/2025

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Common Stock

5.39K shares

−5.39K

Strike price

Held after

54.06K

Exercisable

—

8/1/2025

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Restricted Stock Units Direct	Common Stock4.63K shares	8/1/2025	M · Option Exercise	−4.63K		—	59.45K
Restricted Stock Units Direct	Common Stock5.39K shares	8/1/2025	M · Option Exercise	−5.39K		—	54.06K