Security key
142038108
Caribou Biosciences, Inc. - Common Stock (CRBU)
CUSIP: 142038108
Q4 2023 13F Holders as of 31 Dec 2023
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 69,081,626
- Total 13F value
- $395,824,161
- Share change
- -1,729,115
- Put/Call ratio
- 55%
- SEC-reported price per share
- $5.73
- Number of holders
- 143
- Value change
- -$5,845,565
- Number of buys
- 80
- Number of sells
- 44
- Shares outstanding
- 92,189,700
Holder snapshot
7 signals
Show 1 more signal
Security identity
1 source field
Report period
Q4 2023
Institutions
143
Top holders
10
CRBU full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q1 2024
Previous quarter: Q3 2023
Caribou Biosciences, Inc. SEC filings
Caribou Biosciences, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 142038108
Recent filing periods:
Ownership snapshot
Top reported holders of CRBU - Caribou Biosciences, Inc. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
PFM Health Sciences, LP
Disclosed value leader
PFM Health Sciences, LP
Comparable rows
15/15
Latest evidence
30 Sep 2023
13F
Lead comparable stake: 7.3%
Showing 1-6 of 15 holder rows.
Quick read
PFM Health Sciences, LP leads the comparable SEC ownership view at 7.3%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Comparable ownership
Top 5
PFM Health Sciences, LP
7.3%
BlackRock Finance, Inc.
6.6%
Avidity Partners Management LP
6.6%
STATE STREET CORP
5.8%
VANGUARD GROUP INC
4.1%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| PFM Health Sciences, LP |
13F
Company
|
7.3%
|
$32,144,138
6,724,715 shares
|
— | 30 Sep 2023 |
| BlackRock Finance, Inc. |
13F
Company
|
6.6%
|
$29,083,625
6,084,440 shares
|
— | 30 Sep 2023 |
| Avidity Partners Management LP |
13F
Company
|
6.6%
|
$28,920,013
6,050,212 shares
|
— | 30 Sep 2023 |
| STATE STREET CORP |
13F
Company
|
5.8%
|
$25,589,199
5,353,389 shares
|
— | 30 Sep 2023 |
| VANGUARD GROUP INC |
13F
Company
|
4.1%
|
$18,269,882
3,822,151 shares
|
— | 30 Sep 2023 |
| DEERFIELD MANAGEMENT COMPANY, L.P. |
13F
Company
|
3.8%
|
$16,730,000
3,500,000 shares
|
— | 30 Sep 2023 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2023
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
143
Shares
69,081,626
Rows available
143
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2023 vs Q3 2023 Across Filers
Q3 2023 holders
126
Q4 2023 holders
143
Holder diff
17
| Investor | Q3 2023 Shares | Q4 2023 Shares | Share Diff | Share Chg % | Q3 2023 value | Q4 2023 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend