Equillium, Inc.

EQNASDAQHealthcare● Active

$2.91

+$0.14(+5.20%)

Market Cap$103509532

P/E Ratio—

52W High$3.45

52W Low$0.27

Avg Volume644K

Open$2.80

Beta1.76

Insider Trades Ownership Employees

Equillium, Inc. (EQ) Insider Trading

Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.

SEC EDGAR · FMP · EQ · as of Jun 9, 2026

Activity summary

Buy transactions

P-Purchase only

Sell transactions

12 Months

Buy/Sell ratio

0.00

Buy/Sell (by trades)

Overall sentiment

BEARISH

↑ Buy 0%Active transactions only · RSU vesting excluded100% Sell ↓

Equillium, Inc. insiders have been primarily selling shares over the past 12 Months. Selling activity is often driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment toward the company.

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only

As of Jun 9, 2026

EQ insider buying and selling by quarter

EQ insider selling · EQ insider buying stocks · quarterly insider activity

Total insider buying (incl. awards)Total insider selling

4.9M2.5M0

2024 Q3

2024 Q4

2025 Q1

2025 Q2

2025 Q3

2025 Q4

2026 Q1

2026 Q2

Mobile shows last 4Q · Desktop shows full 8Q

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters

As of Jun 9, 2026

Active insiders

Most active in past 12 months · EQ ceo insider trading

Showing all insiders · Click a card to filter the transactions table below

▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API

Recent insider transactions

EQ executive sell shares · EQ board member insider trading · EQ insider trading SEC filing

Showing 32 most recent · Common Stock · Form 4 only

Scroll horizontally to see all columns

Date	Insider	Type	Shares	Price	Value	After trans.	Filing
Jun 5, 2026	Zedelmayer Christine Sr. Vice President and COO	Option	14,584	$0.79	$11K	77,170	Form 4
Jun 5, 2026	Zedelmayer Christine Sr. Vice President and COO	Sale	14,584	$2.93	$43K	62,586	Form 4
Jun 4, 2026	Connelly Stephen President and CSO	Sale	200,000	$3.16	$633K	793,000	Form 4
Jun 5, 2026	Connelly Stephen President and CSO	Sale	30,975	$2.94	$91K	762,025	Form 4
May 28, 2026	Tom Penny PAO	Option	65,000	$0.79	$51K	65,000	Form 4
May 28, 2026	Tom Penny PAO	Sale	65,000	$2.95	$192K	0	Form 4
May 28, 2026	Zedelmayer Christine Sr. Vice President and COO	Option	48,512	$0.77	$37K	118,390	Form 4
May 28, 2026	Zedelmayer Christine Sr. Vice President and COO	Option	15,625	$0.79	$12K	92,794	Form 4
May 28, 2026	Zedelmayer Christine Sr. Vice President and COO	Option	14,583	$0.79	$11K	77,169	Form 4
May 27, 2026	Zedelmayer Christine Sr. Vice President and COO	Option	9,821	$0.77	$8K	72,407	Form 4
May 28, 2026	Zedelmayer Christine Sr. Vice President and COO	Option	7,292	$0.73	$5K	69,878	Form 4
May 28, 2026	Zedelmayer Christine Sr. Vice President and COO	Sale	55,604	$2.70	$150K	62,786	Form 4
May 28, 2026	Zedelmayer Christine Sr. Vice President and COO	Sale	200	$2.71	$542	62,586	Form 4
May 28, 2026	Zedelmayer Christine Sr. Vice President and COO	Sale	30,208	$2.98	$90K	62,586	Form 4
May 27, 2026	Zedelmayer Christine Sr. Vice President and COO	Sale	9,821	$2.70	$27K	62,586	Form 4
Mar 13, 2026	Zedelmayer Christine Sr. Vice President and COO	Option	120,312	$0.79	$94K	182,898	Form 4
Mar 13, 2026	Zedelmayer Christine Sr. Vice President and COO	Sale	120,312	$2.50	$301K	62,586	Form 4
Mar 9, 2026	Zedelmayer Christine Sr. Vice President and COO	Option	75,000	$0.79	$59K	243,805	Form 4
Mar 9, 2026	Zedelmayer Christine Sr. Vice President and COO	Option	41,666	$0.79	$33K	168,805	Form 4
Mar 9, 2026	Zedelmayer Christine Sr. Vice President and COO	Option	35,695	$0.79	$28K	127,139	Form 4
Mar 9, 2026	Zedelmayer Christine Sr. Vice President and COO	Sale	181,219	$2.00	$362K	62,586	Form 4
Feb 19, 2026	Zedelmayer Christine Sr. Vice President and COO	Option	109,375	$0.79	$86K	300,819	Form 4
Feb 19, 2026	Zedelmayer Christine Sr. Vice President and COO	Option	76,562	$0.73	$56K	268,006	Form 4
Feb 19, 2026	Zedelmayer Christine Sr. Vice President and COO	Sale	109,375	$1.78	$195K	191,444	Form 4
Feb 19, 2026	Zedelmayer Christine Sr. Vice President and COO	Sale	76,562	$1.74	$133K	191,444	Form 4

Zedelmayer Christine

Sr. Vice President and COO

Option

Date

Jun 5

14,584

Price

$0.79

Value

$11K

View Form 4 on SEC.gov

Zedelmayer Christine

Sr. Vice President and COO

Sale

Date

Jun 5

14,584

Price

$2.93

Value

$43K

View Form 4 on SEC.gov

Connelly Stephen

President and CSO

Sale

Date

Jun 4

200,000

Price

$3.16

Value

$633K

View Form 4 on SEC.gov

Connelly Stephen

President and CSO

Sale

Date

Jun 5

30,975

Price

$2.94

Value

$91K

View Form 4 on SEC.gov

Tom Penny

PAO

Option

Date

May 28

65,000

Price

$0.79

Value

$51K

View Form 4 on SEC.gov

Tom Penny

PAO

Sale

Date

May 28

65,000

Price

$2.95

Value

$192K

View Form 4 on SEC.gov

Zedelmayer Christine

Sr. Vice President and COO

Option

Date

May 28

48,512

Price

$0.77

Value

$37K

View Form 4 on SEC.gov

Zedelmayer Christine

Sr. Vice President and COO

Option

Date

May 28

15,625

Price

$0.79

Value

$12K

View Form 4 on SEC.gov

Zedelmayer Christine

Sr. Vice President and COO

Option

Date

May 28

14,583

Price

$0.79

Value

$11K

View Form 4 on SEC.gov

Zedelmayer Christine

Sr. Vice President and COO

Option

Date

May 27

9,821

Price

$0.77

Value

$8K

View Form 4 on SEC.gov

Zedelmayer Christine

Sr. Vice President and COO

Option

Date

May 28

7,292

Price

$0.73

Value

$5K

View Form 4 on SEC.gov

Zedelmayer Christine

Sr. Vice President and COO

Sale

Date

May 28

55,604

Price

$2.70

Value

$150K

View Form 4 on SEC.gov

Zedelmayer Christine

Sr. Vice President and COO

Sale

Date

May 28

200

Price

$2.71

Value

$542

View Form 4 on SEC.gov

Zedelmayer Christine

Sr. Vice President and COO

Sale

Date

May 28

30,208

Price

$2.98

Value

$90K

View Form 4 on SEC.gov

Zedelmayer Christine

Sr. Vice President and COO

Sale

Date

May 27

9,821

Price

$2.70

Value

$27K

View Form 4 on SEC.gov

Zedelmayer Christine

Sr. Vice President and COO

Option

Date

Mar 13

120,312

Price

$0.79

Value

$94K

View Form 4 on SEC.gov

Zedelmayer Christine

Sr. Vice President and COO

Sale

Date

Mar 13

120,312

Price

$2.50

Value

$301K

View Form 4 on SEC.gov

Zedelmayer Christine

Sr. Vice President and COO

Option

Date

Mar 9

75,000

Price

$0.79

Value

$59K

View Form 4 on SEC.gov

Zedelmayer Christine

Sr. Vice President and COO

Option

Date

Mar 9

41,666

Price

$0.79

Value

$33K

View Form 4 on SEC.gov

Zedelmayer Christine

Sr. Vice President and COO

Option

Date

Mar 9

35,695

Price

$0.79

Value

$28K

View Form 4 on SEC.gov

Zedelmayer Christine

Sr. Vice President and COO

Sale

Date

Mar 9

181,219

Price

$2.00

Value

$362K

View Form 4 on SEC.gov

Zedelmayer Christine

Sr. Vice President and COO

Option

Date

Feb 19

109,375

Price

$0.79

Value

$86K

View Form 4 on SEC.gov

Zedelmayer Christine

Sr. Vice President and COO

Option

Date

Feb 19

76,562

Price

$0.73

Value

$56K

View Form 4 on SEC.gov

Zedelmayer Christine

Sr. Vice President and COO

Sale

Date

Feb 19

109,375

Price

$1.78

Value

$195K

View Form 4 on SEC.gov

Zedelmayer Christine

Sr. Vice President and COO

Sale

Date

Feb 19

76,562

Price

$1.74

Value

$133K

View Form 4 on SEC.gov

⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar

1 / 2

▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —

About EQ insider trading

EQ insider trades

Equillium, Inc. (EQ) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including Zedelmayer Christine (Sr. Vice President and COO), Tom Penny (PAO), Connelly Stephen (President and CSO). Over the past 12 months, 3 insiders have filed transactions with the SEC. EQ insiders have been primarily selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.

For Equillium, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →

Buy/Sell signal logic

acquisitionOrDisposition field:

A = Acquisition (buy) · D = Disposition (sell)

RSU vesting (M-Exempt) excluded from sentiment

Form 4SEC filing required within 2 business days of any insider transaction

10b5-1Pre-scheduled trading plan that allows insiders to sell on autopilot

Open MktDirect purchase or sale on the open market (excludes awards, options)

Ownership SEC filings Financial statements Price history Forecast & ratings Earnings

Frequently asked questions

EQ insider trading · 5 questions

The insiders of Equillium, Inc. (EQ) include executives and directors such as Zedelmayer Christine (Sr. Vice President and COO), Tom Penny (PAO), Connelly Stephen (President and CSO), among others. Over the past 12 months, 3 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.

EQ board member insider tradingwho are EQ insidersEQ insider rosterEquillium, Inc. executives insider activity

▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 9, 2026