As of the latest Form 4 filed Jun 5, 2026.
What Equillium Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 25 most recent filings for EQ.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-06-05 | 2026-06-05 | Zedelmayer Christine Sr. Vice President and COO | SSale | −14.6K | $2.93 | $42.7K | Yes (planned) | Form 4 ↗ |
| 2026-06-05 | 2026-06-05 | Zedelmayer Christine, Sr. Vice President and COO | MExercise | +14.6K | $0.79 | $11.4K | Yes (planned) | Form 4 ↗ |
| 2026-06-05 | 2026-06-05 | Connelly Stephen President and CSO | SSale | −31.0K | $2.94 | $91.1K | No | Form 4 ↗ |
| 2026-06-05 | 2026-06-04 | Connelly Stephen, President and CSO | SSale | −200K | $3.16 | $633K | No | Form 4 ↗ |
| 2026-05-29 | 2026-05-28 | Tom Penny Principal Accounting Officer | SSale | −65.0K | $2.95 | $192K | Yes (planned) | Form 4 ↗ |
| 2026-05-29 | 2026-05-28 | Tom Penny, Principal Accounting Officer | MExercise | +65.0K | $0.79 | $51.0K | Yes (planned) | Form 4 ↗ |
| 2026-05-29 | 2026-05-28 | Zedelmayer Christine Sr. Vice President and COO | SSale | −30.2K | $2.98 | $90.0K | Yes (planned) | Form 4 ↗ |
| 2026-05-29 | 2026-05-28 | Zedelmayer Christine, Sr. Vice President and COO | MExercise | +15.6K | $0.79 | $12.3K | Yes (planned) | Form 4 ↗ |
| 2026-05-29 | 2026-05-28 | Zedelmayer Christine, Sr. Vice President and COO | MExercise | +14.6K | $0.79 | $11.4K | Yes (planned) | Form 4 ↗ |
| 2026-05-29 | 2026-05-28 | Zedelmayer Christine, Sr. Vice President and COO | SSale | −200.00 | $2.71 | $542.00 | Yes (planned) | Form 4 ↗ |
| 2026-05-29 | 2026-05-28 | Zedelmayer Christine, Sr. Vice President and COO | SSale | −55.6K | $2.70 | $150K | Yes (planned) | Form 4 ↗ |
| 2026-05-29 | 2026-05-28 | Zedelmayer Christine, Sr. Vice President and COO | MExercise | +48.5K | $0.77 | $37.4K | Yes (planned) | Form 4 ↗ |
| 2026-05-29 | 2026-05-28 | Zedelmayer Christine, Sr. Vice President and COO | MExercise | +7.29K | $0.73 | $5.32K | Yes (planned) | Form 4 ↗ |
| 2026-05-29 | 2026-05-27 | Zedelmayer Christine, Sr. Vice President and COO | SSale | −9.82K | $2.70 | $26.5K | Yes (planned) | Form 4 ↗ |
| 2026-05-29 | 2026-05-27 | Zedelmayer Christine, Sr. Vice President and COO | MExercise | +9.82K | $0.77 | $7.56K | Yes (planned) | Form 4 ↗ |
| 2026-03-16 | 2026-03-13 | Zedelmayer Christine Sr. Vice President and COO | SSale | −120K | $2.50 | $301K | Yes (planned) | Form 4 ↗ |
| 2026-03-16 | 2026-03-13 | Zedelmayer Christine, Sr. Vice President and COO | MExercise | +120K | $0.79 | $94.4K | Yes (planned) | Form 4 ↗ |
| 2026-03-11 | 2026-03-09 | Zedelmayer Christine Sr. Vice President and COO | SSale | −181K | $2.00 | $362K | Yes (planned) | Form 4 ↗ |
| 2026-03-11 | 2026-03-09 | Zedelmayer Christine, Sr. Vice President and COO | MExercise | +75.0K | $0.79 | $58.9K | Yes (planned) | Form 4 ↗ |
| 2026-03-11 | 2026-03-09 | Zedelmayer Christine, Sr. Vice President and COO | MExercise | +41.7K | $0.79 | $32.7K | Yes (planned) | Form 4 ↗ |
| 2026-03-11 | 2026-03-09 | Zedelmayer Christine, Sr. Vice President and COO | MExercise | +35.7K | $0.79 | $28.0K | Yes (planned) | Form 4 ↗ |
| 2026-02-23 | 2026-02-19 | Zedelmayer Christine Sr. Vice President and COO | SSale | −76.6K | $1.74 | $133K | Yes (planned) | Form 4 ↗ |
| 2026-02-23 | 2026-02-19 | Zedelmayer Christine, Sr. Vice President and COO | MExercise | +76.6K | $0.73 | $55.9K | Yes (planned) | Form 4 ↗ |
| 2026-02-23 | 2026-02-19 | Zedelmayer Christine, Sr. Vice President and COO | SSale | −109K | $1.78 | $195K | Yes (planned) | Form 4 ↗ |
| 2026-02-23 | 2026-02-19 | Zedelmayer Christine, Sr. Vice President and COO | MExercise | +109K | $0.79 | $85.9K | Yes (planned) | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also EQ’s full analysis or the market-wide insider trading feed. The tabs above jump to EQ’s other SEC data.
Source: SEC Form 4 filings for EQ, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.