LENTELL ERIC (Chief Legal & Strategy Officer) sold 38.5% of their position (88.14K shares) of ARCHER AVIATION INC. on the open market

Open‑market sale worth $529.0K — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 2 sales

LENTELL ERIC

Filed: 5/20/2026ACC: 0002016416-26-000015

InsiderLENTELL ERICCIK 2016416

→

IssuerARCHER AVIATION INC.CIK 1824502

Officer· Chief Legal & Strategy Officer

Since Mar 2026

-519.00

Net shares

Net seller

$529.0K

Total sold

Open market trades

0B · 2S

Total transactions

188.06K acquired · 188.58K disposed

Non-Derivative Transactions8

Class A Common Stock

Direct

M · Option Exercise

+7.30K

Price / share

—

Trade value

—

% of position

5.7%

5/15/2026

128.78K→136.08K

Class A Common Stock

Direct

M · Option Exercise

+22.87K

Price / share

—

Trade value

—

% of position

16.8%

5/15/2026

136.08K→158.94K

Class A Common Stock

Direct

M · Option Exercise

+19.80K

Price / share

—

Trade value

—

% of position

12.5%

5/15/2026

158.94K→178.74K

Class A Common Stock

Direct

M · Option Exercise

+8.95K

Price / share

—

Trade value

—

% of position

5.0%

5/15/2026

178.74K→187.69K

Class A Common Stock

Direct

M · Option Exercise

+26.10K

Price / share

—

Trade value

—

% of position

13.9%

5/15/2026

187.69K→213.78K

Class A Common Stock

Direct

M · Option Exercise

+15.44K

Price / share

—

Trade value

—

% of position

7.2%

5/15/2026

213.78K→229.22K

Class A Common Stock

Direct

S · Sale

−39.97K

Price / share

$6.06

Trade value

$242.24K

% of position

17.4%

5/15/2026

229.22K→189.25K

Class A Common Stock

Direct

S · Sale

−48.17K

Price / share

$5.95

Trade value

$286.74K

% of position

25.5%

5/18/2026

189.25K→141.08K

Total

Net shares

+12.31K

Net value

-$528.98K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Class A Common Stock Direct	5/15/2026	M · Option Exercise	+7.30K	—	—	5.7%	128.78K	136.08K
Class A Common Stock Direct	5/15/2026	M · Option Exercise	+22.87K	—	—	16.8%	136.08K	158.94K
Class A Common Stock Direct	5/15/2026	M · Option Exercise	+19.80K	—	—	12.5%	158.94K	178.74K
Class A Common Stock Direct	5/15/2026	M · Option Exercise	+8.95K	—	—	5.0%	178.74K	187.69K
Class A Common Stock Direct	5/15/2026	M · Option Exercise	+26.10K	—	—	13.9%	187.69K	213.78K
Class A Common Stock Direct	5/15/2026	M · Option Exercise	+15.44K	—	—	7.2%	213.78K	229.22K
Class A Common Stock Direct	5/15/2026	S · Sale	−39.97K	$6.06	$242.24K	17.4%	229.22K	189.25K
Class A Common Stock Direct	5/18/2026	S · Sale	−48.17K	$5.95	$286.74K	25.5%	189.25K	141.08K
Total			+12.31K		-$528.98K

Derivative Transactions7

Restricted Stock Units

Direct

A · Award

Converts to

Class A Common Stock

87.62K shares

+87.62K

Strike price

Held after

87.62K

Exercisable

—

5/15/2026

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Class A Common Stock

7.30K shares

−7.30K

Strike price

Held after

80.32K

Exercisable

—

5/15/2026

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Class A Common Stock

22.87K shares

−22.87K

Strike price

Held after

22.87K

Exercisable

—

5/15/2026

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Class A Common Stock

19.80K shares

−19.80K

Strike price

Held after

59.39K

Exercisable

—

5/15/2026

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Class A Common Stock

8.95K shares

−8.95K

Strike price

Held after

62.62K

Exercisable

—

5/15/2026

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Class A Common Stock

26.10K shares

−26.10K

Strike price

Held after

156.58K

Exercisable

—

5/15/2026

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Class A Common Stock

15.44K shares

−15.44K

Strike price

Held after

154.36K

Exercisable

—

5/15/2026

Security	Converts To	Date	Type	Shares	Exercisable	Held After
Restricted Stock Units Direct	Class A Common Stock87.62K shares	5/15/2026	A · Award	+87.62K	—	87.62K
Restricted Stock Units Direct	Class A Common Stock7.30K shares	5/15/2026	M · Option Exercise	−7.30K	—	80.32K
Restricted Stock Units Direct	Class A Common Stock22.87K shares	5/15/2026	M · Option Exercise	−22.87K	—	22.87K
Restricted Stock Units Direct	Class A Common Stock19.80K shares	5/15/2026	M · Option Exercise	−19.80K	—	59.39K
Restricted Stock Units Direct	Class A Common Stock8.95K shares	5/15/2026	M · Option Exercise	−8.95K	—	62.62K
Restricted Stock Units Direct	Class A Common Stock26.10K shares	5/15/2026	M · Option Exercise	−26.10K	—	156.58K
Restricted Stock Units Direct	Class A Common Stock15.44K shares	5/15/2026	M · Option Exercise	−15.44K	—	154.36K