CERo Therapeutics Holdings, Inc.
CERo Therapeutics Holdings, Inc. (CERO) 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 · CERO · as of Jun 9, 2026
Activity summary
Buy transactions
0
P-Purchase only
Sell transactions
7
12 Months
Buy/Sell ratio
0.00
Buy/Sell (by trades)
Overall sentiment
CERo Therapeutics Holdings, 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
CERO insider buying and selling by quarter
CERO insider selling · CERO insider buying stocks · quarterly insider activity
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
Recent insider transactions
CERO executive sell shares · CERO board member insider trading · CERO insider trading SEC filing
Scroll horizontally to see all columns
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| Mar 31, 2025 | ATWOOD BRIAN G Director | Option | 294,460 | $29 | Form 4 |
| Dec 11, 2024 | YK Bioventures Opportunities GP I, LLC 10 percent owner | Sale | 1,343,801 | $108K | Form 4 |
| Dec 12, 2024 | YK Bioventures Opportunities GP I, LLC 10 percent owner | Sale | 1,614,541 | $113K | Form 4 |
| Dec 13, 2024 | YK Bioventures Opportunities GP I, LLC 10 percent owner | Sale | 2,998,908 | $180K | Form 4 |
| Dec 6, 2024 | YK Bioventures Opportunities GP I, LLC 10 percent owner | Sale | 1,236,874 | $148K | Form 4 |
| Dec 9, 2024 | YK Bioventures Opportunities GP I, LLC 10 percent owner | Sale | 850,543 | $94K | Form 4 |
| Dec 10, 2024 | YK Bioventures Opportunities GP I, LLC 10 percent owner | Sale | 1,570,947 | $141K | Form 4 |
| Oct 10, 2024 | YK Bioventures Opportunities GP I, LLC 10 percent owner | Sale | 3,250,000 | $325K | Form 4 |
| Sep 25, 2024 | LAPORTE KATHLEEN Director | Option | 965,997 | $966.00M⚡ | Form 4 |
| Sep 25, 2024 | Ehrlich Christopher B Interim Chairman and CEO · Director | Option | 5,312,983 | $5.31B⚡ | Form 4 |
| Sep 25, 2024 | ATWOOD BRIAN G Director | Option | 19,358,578 | $19.36B⚡ | Form 4 |
| Feb 14, 2024 | PHOENIX BIOTECH SPONSOR, LLC 10 percent owner | Other | 1,125,000 | — | Form 4 |
| Feb 14, 2024 | PHOENIX BIOTECH SPONSOR, LLC 10 percent owner | Other | 4,171,246 | — | Form 4 |
| Feb 14, 2024 | LAPORTE KATHLEEN Director | Other | 5,828 | — | Form 4 |
| Feb 14, 2024 | Ehrlich Christopher B Director | Other | 1,125,000 | — | Form 4 |
| Feb 14, 2024 | Ehrlich Christopher B Director | Other | 4,171,246 | — | Form 4 |
| Feb 14, 2024 | Ehrlich Christopher B Director | Other | 478,825 | — | Form 4 |
| Feb 14, 2024 | Ehrlich Christopher B Director | Other | 3,600 | — | Form 4 |
YK Bioventures Opportunities GP I, LLC
10 percent owner
Date
Dec 11
Shares
1,343,801
Price
$0.08
Value
$108K
YK Bioventures Opportunities GP I, LLC
10 percent owner
Date
Dec 12
Shares
1,614,541
Price
$0.07
Value
$113K
YK Bioventures Opportunities GP I, LLC
10 percent owner
Date
Dec 13
Shares
2,998,908
Price
$0.06
Value
$180K
YK Bioventures Opportunities GP I, LLC
10 percent owner
Date
Dec 6
Shares
1,236,874
Price
$0.12
Value
$148K
YK Bioventures Opportunities GP I, LLC
10 percent owner
Date
Dec 9
Shares
850,543
Price
$0.11
Value
$94K
YK Bioventures Opportunities GP I, LLC
10 percent owner
Date
Dec 10
Shares
1,570,947
Price
$0.09
Value
$141K
YK Bioventures Opportunities GP I, LLC
10 percent owner
Date
Oct 10
Shares
3,250,000
Price
$0.10
Value
$325K
LAPORTE KATHLEEN
Director
Date
Sep 25
Shares
965,997
Price
$1000.00
Value
$966.00M ⚡
Ehrlich Christopher B
Interim Chairman and CEO · Director
Date
Sep 25
Shares
5,312,983
Price
$1000.00
Value
$5.31B ⚡
ATWOOD BRIAN G
Director
Date
Sep 25
Shares
19,358,578
Price
$1000.00
Value
$19.36B ⚡
PHOENIX BIOTECH SPONSOR, LLC
10 percent owner
Date
Feb 14
Shares
1,125,000
Price
—
Value
—
PHOENIX BIOTECH SPONSOR, LLC
10 percent owner
Date
Feb 14
Shares
4,171,246
Price
—
Value
—
▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —
About CERO insider trading
CERO insider trades
CERo Therapeutics Holdings, Inc. (CERO) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including CERO. Over the past 12 months, 0 insiders have filed transactions with the SEC. CERO insiders have been primarily selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.
For CERo Therapeutics Holdings, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →
Frequently asked questions
CERO insider trading · 5 questionsThe insiders of CERo Therapeutics Holdings, Inc. (CERO) include executives and directors such as CERO, among others. Over the past 12 months, 0 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.
▸ 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