George Tidmarsh
On May 23, 2025, George Tidmarsh, M.D., Ph.D., resigned from the Board of Directors of Revelation Biosciences, Inc. (the “Company”).
Highest-materiality recent filing
Revelation Biosciences adopts bylaw amendments, authorizes reverse stock split
Board approved amended employment agreements for CEO & CFO: 2x salary+bonus severance on change in control, 18-mo COBRA, 3-year term.
Revelation Biosciences reports Q4 and FY2025 results; cash $10.7M, net loss $8.9M
Cash and cash equivalents $10.7M as of Dec 31, 2025 vs $6.5M in 2024; net proceeds of $6.7M from warrant inducement in January 2026
Revelation Biosciences raises ~$7.3M via warrant exercise; issues new warrants
Two holders exercised 8,544,999 pre-split Class I warrants at $0.86/share, gross proceeds ~$7.3M.
Revelation Biosciences reaches FDA agreement on approval pathway for Gemini AKI treatment
FDA agreed single Phase 2/3 adaptive study (~300 patients) can support NDA for Gemini in AKI.
Revelation Biosciences reports positive Phase 1b Gemini results; plans Phase 2/3 AKI study in 2026
Phase 1b CKD study completed with positive results; Gemini rebalances inflammation at cellular level.
Revelation Biosciences Q3 net loss $1.9M, cash $12.7M; cash runway through Q3 2026
Net loss for Q3 2025 was $1.9M ($1.77 per share) vs $2.2M ($40.15) in Q3 2024.
Revelation Biosciences raises $9.6M via immediate exercise of existing warrants
$9.6M gross proceeds from exercise of 13,065,000 existing warrants at $2.20/share.
Gemini met primary safety endpoint; well-tolerated at target dose with only mild Grade I events.
Reverse stock split authorized at ratio 1:2 to 1:250, board to set exact ratio within one year.
Revelation Biosciences closes $4M public offering of common stock and warrants
Gross proceeds ~$4M from sale of 3,640,000 shares (or pre-funded warrants) plus warrants for up to 14,560,000 shares.
Revelation Biosciences Q1 net loss $2.1M; cash only to June 2025
Cash and equivalents $3.7M at March 31, 2025, down from $6.5M at Dec 31, 2024.
Gemini priming attenuates inflammation in human PBMCs; Phase 1b data expected mid-2025
Gemini significantly decreased proinflammatory cytokines and increased anti-inflammatory cytokines vs. placebo in PBMCs challenged with HMGB-1 and LPS.
Q4 2024 net loss $1.7M ($4.98/share) vs $2.2M ($133.64/share) in Q4 2023.
Revelation Biosciences regains Nasdaq compliance and advances PRIME Phase 1b CKD study
Nasdaq confirmed REVB common stock meets minimum bid price and all continued listing requirements.
Revelation Biosciences effects 1-for-16 reverse stock split; shares outstanding cut to ~522K
Reverse stock split effective Jan 28, 2025, at 1-for-16 ratio; no fractional shares issued.
Nasdaq grants Revelation continued listing subject to reverse split and $1 price by Feb 14, 2025
Nasdaq Panel granted continued listing; must effect reverse stock split by Jan 31, 2025.
Revelation Biosciences regains compliance with Nasdaq stockholders' equity requirement
Reported stockholders' equity of $2.67M as of Sep 30, 2024, meeting the $2.5M minimum.
FDA accepts IND for Gemini Phase 1b CKD study; REVB raises ~$4.1M from warrant exercises
FDA accepted IND for Gemini (trained immunity) for Phase 1b study in up to 40 CKD patients; primary endpoint safety/tolerability.
Revelation Biosciences reports Q3 net loss of $2.2M; cash $6.5M into 2025
Net loss Q3 2024: $2.2M ($0.84 per share) vs $2.6M loss in Q3 2023; nine-month net loss $13.3M vs net income $2.1M in prior year.
Nasdaq notified REVB of non-compliance with $1.00 minimum bid price rule as of October 16, 2024.
Gemini induced statistically significant (p<0.05) dose-dependent IL-10 increases: 27-fold (low), 162-fold (mid), 309-fold (high) vs placebo at 2 hours.
Revelation Biosciences raises ~$3.8M via warrant exercises; issues new warrants
Class D warrant holders exercise 2,548,060 shares at reduced price of $1.50/share, gross proceeds ~$3.8M.
Revelation Biosciences warns of delisting risk; stockholders' equity only $1.14M vs $2.5M minimum
Received Nasdaq letter on Aug 14, 2024, citing insufficient stockholders' equity of $1,140,421 vs required $2.5M.
Revelation Biosciences Q2 net loss $8.4M; cash $12.1M, plans Phase 1b
Net loss for Q2 2024 of $8.4M ($5.13 per share) vs $1.4M loss in Q2 2023.
Revelation Biosciences faces $7.3M judgment in LifeSci Capital lawsuit
U.S. District Court entered summary judgment against Revelation Biosciences for ~$7.3M in unpaid banking and advisory fees plus interest.
Revelation Biosciences Q1 net loss $2.7M; cash $14.6M sufficient through 2024
Net loss of $2.7M ($2.46 per share) for Q1 2024, compared to net earnings of $6.2M in Q1 2023, driven by change in warrant liability.
Revelation Biosciences FY2023 net loss narrows to $0.1M; cash $12.0M through 2024
Year-end cash $12.0M vs $5.3M; company believes sufficient to fund operations through 2024.
Revelation presents positive preclinical Gemini data for AKI; Phase 1 initiated
Gemini (PHAD) significantly reduced serum BUN, creatinine, and urine CRP in rat AKI model at 0.35 mg/kg (p<0.05).
Revelation Biosciences raises $6.2M in public offering, regains Nasdaq bid price compliance
Gross proceeds ~$6.2M from sale of 128,470 shares and 1,236,530 pre-funded warrants, plus 2,730,000 Class D warrants at $4.53 combined price.
Gemini showed dose-dependent white blood cell mobilization and cytokine upregulation (IL-10, NGAL, IL-6) in healthy animal models.
Revelation Biosciences receives Nasdaq bid price deficiency notice
Nasdaq notified REVB on Aug 8, 2023 of noncompliance with minimum $1.00 bid price rule for 30 consecutive business days.
On May 23, 2025, George Tidmarsh, M.D., Ph.D., resigned from the Board of Directors of Revelation Biosciences, Inc. (the “Company”).
On September 27, 2023, the Board of Directors elected Lakhmir Chawla M.D. (age 53) to the Board of Directors, as a Class C Director to fill the vacancy created by the resignation of Dr. La Belle.
On September 27, 2023, Curt LaBelle, M.D., resigned from the Board of Directors of Revelation Biosciences, Inc. (the "Company").
each of Andreas Typaldos, David Dobkin, Anthony Hayes, Robert Nicholson, Barry Dennis and William Carson ceased serving as a director of Petra
each of Andreas Typaldos, David Dobkin, Anthony Hayes, Robert Nicholson, Barry Dennis and William Carson ceased serving as a director of Petra
Andreas Typaldos and Sean Fitzpatrick ceased serving as executive officers of Petra
each of Andreas Typaldos, David Dobkin, Anthony Hayes, Robert Nicholson, Barry Dennis and William Carson ceased serving as a director of Petra
each of Andreas Typaldos, David Dobkin, Anthony Hayes, Robert Nicholson, Barry Dennis and William Carson ceased serving as a director of Petra
Andreas Typaldos and Sean Fitzpatrick ceased serving as executive officers of Petra
each of Andreas Typaldos, David Dobkin, Anthony Hayes, Robert Nicholson, Barry Dennis and William Carson ceased serving as a director of Petra
each of Andreas Typaldos, David Dobkin, Anthony Hayes, Robert Nicholson, Barry Dennis and William Carson ceased serving as a director of Petra
Max materiality 0.85 · Median 0.60 · Most common event other_material