Security key
34385P108
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 302,676,409
- Total 13F value
- $387,378,387
- Share change
- +16,914,479
- Put/Call ratio
- 67%
- SEC-reported price per share
- $1.28
- Number of holders
- 160
- Value change
- +$21,629,482
- Number of buys
- 64
- Number of sells
- 67
- Shares outstanding
- 395,567,350
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2025
Institutions
160
Top holders
10
LAB full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
STANDARD BIOTOOLS INC. SEC filings
STANDARD BIOTOOLS INC. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 34385P108
Recent filing periods:
Ownership snapshot
Top reported holders of LAB - STANDARD BIOTOOLS 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
Casdin Partners Master Fu...
Disclosed value leader
Casdin Partners Master Fu...
Comparable rows
15/15
Latest evidence
02 Dec 2025
3/4/5
13F
Lead comparable stake: 19%
Showing 1-6 of 15 holder rows.
Quick read
Casdin Partners Master Fund, L.P. leads the comparable SEC ownership view at 19%.
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.
Open SEC evidence
Opens Casdin Partners Master Fund, L.P.'s linked filing trail.
Comparable ownership
Top 5
Casdin Partners Master Fund, L.P.
19%
Casdin Capital, LLC
20%
VIKING GLOBAL INVESTORS LP
15%
BlackRock, Inc.
6.3%
VANGUARD GROUP INC
4.4%
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 |
|---|---|---|---|---|---|
| Casdin Partners Master Fund, L.P. |
3/4/5
Director, 10%+ Owner
|
19%
|
$107,795,554
75,001,062 shares
|
+$16,303,018 | 02 Dec 2025 |
| Casdin Capital, LLC |
13F
Company
|
20%
|
$100,826,513
77,558,856 shares
|
— | 30 Sep 2025 |
| VIKING GLOBAL INVESTORS LP |
13F
3/4/5
Company · 10%+ Owner
|
15%
|
$76,246,521
58,651,170 shares
|
— | 30 Sep 2025 |
| BlackRock, Inc. |
13F
Company
|
6.3%
|
$32,397,194
24,920,918 shares
|
— | 30 Sep 2025 |
| VANGUARD GROUP INC |
13F
Company
|
4.4%
|
$22,419,257
17,245,583 shares
|
— | 30 Sep 2025 |
| MAK CAPITAL ONE LLC |
13F
Company
|
4%
|
$20,711,348
15,931,806 shares
|
— | 30 Sep 2025 |
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 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
160
Shares
302,676,409
Rows available
160
| 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 2025 vs Q3 2025 Across Filers
Q3 2025 holders
154
Q4 2025 holders
160
Holder diff
6
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 value | Q4 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend