Equillium, Inc.
EQHealthcare|Biotechnology|US
$1.51
+0.18 (+13.53%)
DCF Value
$0.32
Tangible Book / Share
$0.50
Cash / Share
$0.51
Ownership Breakdown
58.3%
Float
63.4M
Shares Outstanding
37.0M
Float Shares
Major Holders (21)
Combined: 160.5%
Holders of 5%+ from their latest Schedule 13D/13G filing in the last two years. Percentages are as of each filing date.
| Holder | Type | % of Class | Shares | Filed | Filing |
|---|---|---|---|---|---|
| Janus Henderson Group PLC | Holding company | 9.99% | 6,083,239 | Feb 6, 2026 | 13D/G |
| ADAR1 Capital Management, LLC | IA, OO | 9.90% | 6,603,754 | May 15, 2026 | 13D/G |
| Daniel Schneeberger | HC, IN | 9.90% | 6,603,754 | May 15, 2026 | 13D/G |
| Rajeev Shah | HC, IN | 9.90% | 6,480,209 | Mar 20, 2026 | 13D/G |
| RA Capital Management, L.P. | IA, PN | 9.90% | 6,480,209 | Mar 20, 2026 | 13D/G |
| Peter Kolchinsky | HC, IN | 9.90% | 6,480,209 | Mar 20, 2026 | 13D/G |
| RA Capital Healthcare Fund, L.P. | Partnership | 9.90% | 6,480,209 | Mar 20, 2026 | 13D/G |
| ADAR1 Capital Management GP, LLC | Other | 9.50% | 6,306,184 | May 15, 2026 | 13D/G |
| Xiangmin Cui | Individual | 8.90% | 5,733,021 | May 15, 2026 | 13D/G |
| Robert Atchinson | HC, IN | 7.25% | 4,832,767 | Aug 12, 2026 | 13D/G |
| Phillip Gross | HC, IN | 7.25% | 4,832,767 | Aug 12, 2026 | 13D/G |
| Adage Capital Management, L.P. | IA, PN | 7.25% | 4,832,767 | Aug 12, 2026 | 13D/G |
| Aberdeen Group plc | Holding company | 7.03% | 4,458,351 | Nov 4, 2026 | 13D/G |
| abrdn Inc. | IA, CO | 7.03% | 4,458,351 | Nov 4, 2026 | 13D/G |
| Decheng Capital Management IV (Cayman), LLC | Other | 6.70% | 4,271,423 | May 15, 2026 | 13D/G |
| Decheng Capital Global Life Sciences Fund IV, L.P. | Partnership | 6.70% | 4,271,423 | May 15, 2026 | 13D/G |
| Michael Cho | HC, IN | 6.50% | 4,100,000 | Aug 13, 2026 | 13D/G |
| Affinity Asset Advisors, LLC | IA, OO | 6.50% | 4,100,000 | Aug 13, 2026 | 13D/G |
| Woodline Partners LP | IA, PN | 5.90% | 3,508,771 | Nov 14, 2025 | 13D/G |
| Decheng Capital Global Healthcare Fund (Master), LP | Partnership | 2.30% | 1,461,598 | May 15, 2026 | 13D/G |
| Decheng Capital Global Healthcare GP, LLC | Other | 2.30% | 1,461,598 | May 15, 2026 | 13D/G |
Insider Trades (100)
Last 4 quarters: 9,089,964 acquired · 1,886,798 disposed
| Insider | Position | Date | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Zedelmayer Christine | Sr. Vice President and COO | Jun 5, 2026 | OPTION EX. | 14,584 | $0.79 | $11.4K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Jun 5, 2026 | SELL | 14,584 | $2.93 | $42.7K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Jun 5, 2026 | OPTION EX. | 14,584 | $0.79 | $11.4K | Form 4 |
| Connelly Stephen | President and CSO | Jun 4, 2026 | SELL | 200,000 | $3.16 | $632.8K | Form 4 |
| Connelly Stephen | President and CSO | Jun 5, 2026 | SELL | 30,975 | $2.94 | $91.1K | Form 4 |
| Tom Penny | Principal Accounting Officer | May 28, 2026 | OPTION EX. | 65,000 | $0.79 | $51.0K | Form 4 |
| Tom Penny | Principal Accounting Officer | May 28, 2026 | SELL | 65,000 | $2.95 | $191.8K | Form 4 |
| Tom Penny | Principal Accounting Officer | May 28, 2026 | OPTION EX. | 65,000 | $0.79 | $51.0K | Form 4 |
| DEMSKI MARTHA J | director | May 28, 2026 | AWARD | 70,000 | $2.84 | $198.8K | Form 4 |
| Pruzanski Mark | director | May 28, 2026 | AWARD | 70,000 | $2.84 | $198.8K | Form 4 |
| BRADBURY DANIEL | director, officer: CHAIRMAN | May 28, 2026 | AWARD | 70,000 | $2.84 | $198.8K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | May 27, 2026 | OPTION EX. | 9,821 | $0.77 | $7.6K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | May 28, 2026 | OPTION EX. | 48,512 | $0.77 | $37.4K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | May 28, 2026 | OPTION EX. | 48,512 | $0.77 | $37.4K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | May 28, 2026 | OPTION EX. | 15,625 | $0.79 | $12.3K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | May 28, 2026 | OPTION EX. | 7,292 | $0.73 | $5.3K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | May 28, 2026 | OPTION EX. | 14,583 | $0.79 | $11.4K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | May 27, 2026 | OPTION EX. | 9,821 | $0.77 | $7.6K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | May 28, 2026 | OPTION EX. | 7,292 | $0.73 | $5.3K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | May 28, 2026 | SELL | 55,604 | $2.70 | $150.1K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | May 28, 2026 | SELL | 200 | $2.71 | $542.00 | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | May 28, 2026 | SELL | 30,208 | $2.98 | $90.0K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | May 27, 2026 | SELL | 9,821 | $2.70 | $26.5K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | May 28, 2026 | OPTION EX. | 14,583 | $0.79 | $11.4K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | May 28, 2026 | OPTION EX. | 15,625 | $0.79 | $12.3K | Form 4 |
| McDermott Charles Douglas | director | May 28, 2026 | AWARD | 70,000 | $2.84 | $198.8K | Form 4 |
| Troupin Barbara | director | May 28, 2026 | AWARD | 70,000 | $2.84 | $198.8K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Mar 13, 2026 | OPTION EX. | 120,312 | $0.79 | $94.4K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Mar 13, 2026 | SELL | 120,312 | $2.50 | $300.8K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Mar 13, 2026 | OPTION EX. | 120,312 | $0.79 | $94.4K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Feb 19, 2026 | OPTION EX. | 109,375 | $0.79 | $85.9K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Feb 19, 2026 | OPTION EX. | 76,562 | $0.73 | $55.9K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Feb 19, 2026 | SELL | 109,375 | $1.78 | $194.8K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Feb 19, 2026 | SELL | 76,562 | $1.74 | $133.3K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Mar 9, 2026 | OPTION EX. | 75,000 | $0.79 | $58.9K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Mar 9, 2026 | OPTION EX. | 41,666 | $0.79 | $32.7K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Mar 9, 2026 | OPTION EX. | 35,695 | $0.79 | $28.0K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Mar 9, 2026 | SELL | 181,219 | $2.00 | $362.4K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Mar 9, 2026 | OPTION EX. | 75,000 | $0.79 | $58.9K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Feb 19, 2026 | OPTION EX. | 109,375 | $0.79 | $85.9K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Feb 19, 2026 | OPTION EX. | 76,562 | $0.73 | $55.9K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Feb 19, 2026 | SELL | 109,375 | $1.78 | $194.8K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Feb 19, 2026 | SELL | 76,562 | $1.74 | $133.3K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Feb 19, 2026 | OPTION EX. | 76,562 | $0.73 | $55.9K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Feb 19, 2026 | OPTION EX. | 109,375 | $0.79 | $85.9K | Form 4 |
| Connelly Stephen | director, officer: President and CSO | Jan 7, 2026 | AWARD | 1,150,000 | $1.31 | $1.5M | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Jan 7, 2026 | AWARD | 500,000 | $1.31 | $655.0K | Form 4 |
| Steel Bruce D. | director, 10 percent owner, officer: Chief Executive Officer | Jan 7, 2026 | AWARD | 1,750,000 | $1.31 | $2.3M | Form 4 |
| Tom Penny | Principal Accounting Officer | Jan 7, 2026 | AWARD | 450,000 | $1.31 | $589.5K | Form 4 |
| Tom Penny | Principal Accounting Officer | Jan 8, 2026 | SELL | 6,533 | $1.29 | $8.4K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Dec 23, 2025 | OPTION EX. | 100,000 | $0.79 | $78.5K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Dec 23, 2025 | SELL | 100,000 | $1.50 | $150.0K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Dec 23, 2025 | OPTION EX. | 100,000 | $0.79 | $78.5K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Dec 12, 2025 | SELL | 23,804 | $1.34 | $31.9K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Dec 15, 2025 | SELL | 11,900 | $1.31 | $15.6K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Nov 25, 2025 | SELL | 100 | $0.98 | $98.00 | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Nov 25, 2025 | SELL | 7,998 | $0.95 | $7.6K | Form 4 |
| Connelly Stephen | director, officer: Chief Scientific Officer | Aug 29, 2025 | AWARD | 1,025,000 | $1.74 | $1.8M | Form 4 |
| Tom Penny | Principal Accounting Officer | Aug 29, 2025 | AWARD | 525,000 | $1.74 | $913.5K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Aug 29, 2025 | AWARD | 725,000 | $1.74 | $1.3M | Form 4 |
| Steel Bruce D. | director, 10 percent owner, officer: President and CEO | Aug 29, 2025 | AWARD | 1,695,000 | $1.74 | $2.9M | Form 4 |
| Colabuono Peter | director | May 21, 2025 | AWARD | 20,000 | $0.39 | $7.8K | Form 4 |
| DEMSKI MARTHA J | director | May 21, 2025 | AWARD | 20,000 | $0.39 | $7.8K | Form 4 |
| Pruzanski Mark | director | May 21, 2025 | AWARD | 20,000 | $0.39 | $7.8K | Form 4 |
| McDermott Charles Douglas | director | May 21, 2025 | AWARD | 20,000 | $0.39 | $7.8K | Form 4 |
| Troupin Barbara | director | May 21, 2025 | AWARD | 20,000 | $0.39 | $7.8K | Form 4 |
| MANIAN BALA S | director | May 21, 2025 | AWARD | 20,000 | $0.39 | $7.8K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Feb 14, 2025 | AWARD | 175,000 | $0.79 | $137.4K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Feb 14, 2025 | AWARD | 125,000 | $0.79 | $98.1K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Feb 14, 2025 | AWARD | 100,000 | $0.79 | $78.5K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Feb 14, 2025 | AWARD | 75,000 | $0.79 | $58.9K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Feb 14, 2025 | AWARD | 41,666 | $0.79 | $32.7K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Feb 14, 2025 | AWARD | 35,695 | $0.79 | $28.0K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Feb 14, 2025 | DISPOSED | 100,000 | $5.03 | $503.0K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Feb 14, 2025 | DISPOSED | 175,000 | $1.06 | $185.5K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Feb 14, 2025 | DISPOSED | 125,000 | $3.86 | $482.5K | Form 4 |
| Zedelmayer Christine | Sr. Vice President and COO | Feb 14, 2025 | DISPOSED | 75,000 | $2.45 | $183.8K | Form 4 |
| Connelly Stephen | director, officer: Chief Scientific Officer | Feb 14, 2025 | AWARD | 175,000 | $0.79 | $137.4K | Form 4 |
| Connelly Stephen | director, officer: Chief Scientific Officer | Feb 14, 2025 | AWARD | 125,000 | $0.79 | $98.1K | Form 4 |
| Connelly Stephen | director, officer: Chief Scientific Officer | Feb 14, 2025 | AWARD | 100,000 | $0.79 | $78.5K | Form 4 |
| Connelly Stephen | director, officer: Chief Scientific Officer | Feb 14, 2025 | AWARD | 90,000 | $0.79 | $70.7K | Form 4 |
| Connelly Stephen | director, officer: Chief Scientific Officer | Feb 14, 2025 | AWARD | 52,500 | $0.79 | $41.2K | Form 4 |
| Connelly Stephen | director, officer: Chief Scientific Officer | Feb 14, 2025 | AWARD | 42,534 | $0.79 | $33.4K | Form 4 |
| Connelly Stephen | director, officer: Chief Scientific Officer | Feb 14, 2025 | DISPOSED | 125,000 | $3.86 | $482.5K | Form 4 |
| Connelly Stephen | director, officer: Chief Scientific Officer | Feb 14, 2025 | DISPOSED | 52,500 | $4.75 | $249.4K | Form 4 |
| Connelly Stephen | director, officer: Chief Scientific Officer | Feb 14, 2025 | DISPOSED | 100,000 | $5.03 | $503.0K | Form 4 |
| Connelly Stephen | director, officer: Chief Scientific Officer | Feb 14, 2025 | DISPOSED | 175,000 | $1.06 | $185.5K | Form 4 |
| Connelly Stephen | director, officer: Chief Scientific Officer | Feb 14, 2025 | DISPOSED | 90,000 | $7.16 | $644.4K | Form 4 |
| Connelly Stephen | director, officer: Chief Scientific Officer | Feb 14, 2025 | DISPOSED | 42,534 | $2.80 | $119.1K | Form 4 |
| BRADBURY DANIEL | director, 10 percent owner, officer: EXECUTIVE CHAIRMAN | Feb 14, 2025 | AWARD | 90,000 | $0.79 | $70.7K | Form 4 |
| BRADBURY DANIEL | director, 10 percent owner, officer: EXECUTIVE CHAIRMAN | Feb 14, 2025 | AWARD | 50,000 | $0.79 | $39.3K | Form 4 |
| BRADBURY DANIEL | director, 10 percent owner, officer: EXECUTIVE CHAIRMAN | Feb 14, 2025 | AWARD | 38,000 | $0.79 | $29.8K | Form 4 |
| BRADBURY DANIEL | director, 10 percent owner, officer: EXECUTIVE CHAIRMAN | Feb 14, 2025 | AWARD | 36,000 | $0.79 | $28.3K | Form 4 |
| BRADBURY DANIEL | director, 10 percent owner, officer: EXECUTIVE CHAIRMAN | Feb 14, 2025 | AWARD | 28,708 | $0.79 | $22.5K | Form 4 |
| BRADBURY DANIEL | director, 10 percent owner, officer: EXECUTIVE CHAIRMAN | Feb 14, 2025 | DISPOSED | 36,000 | $5.03 | $181.1K | Form 4 |
| BRADBURY DANIEL | director, 10 percent owner, officer: EXECUTIVE CHAIRMAN | Feb 14, 2025 | DISPOSED | 28,708 | $3.53 | $101.3K | Form 4 |
| BRADBURY DANIEL | director, 10 percent owner, officer: EXECUTIVE CHAIRMAN | Feb 14, 2025 | DISPOSED | 36,000 | $4.75 | $171.0K | Form 4 |
| BRADBURY DANIEL | director, 10 percent owner, officer: EXECUTIVE CHAIRMAN | Feb 14, 2025 | DISPOSED | 50,000 | $1.06 | $53.0K | Form 4 |
| BRADBURY DANIEL | director, 10 percent owner, officer: EXECUTIVE CHAIRMAN | Feb 14, 2025 | DISPOSED | 38,000 | $3.59 | $136.4K | Form 4 |
| BRADBURY DANIEL | director, 10 percent owner, officer: EXECUTIVE CHAIRMAN | Feb 14, 2025 | DISPOSED | 90,000 | $7.16 | $644.4K | Form 4 |