Security key
13100M509
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 59,642,726
- Total 13F value
- $2,935,078,184
- Share change
- +488,394
- Put/Call ratio
- 12%
- SEC-reported price per share
- $48.99
- Number of holders
- 309
- Value change
- +$17,336,441
- Number of buys
- 163
- Number of sells
- 160
- Shares outstanding
- 63,725,907
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
Q1 2026
Institutions
309
Top holders
10
CALX full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
CALIX, INC SEC filings
CALIX, INC company facts
Broader feeds
Reporting periods
Holder history for CUSIP 13100M509
Recent filing periods:
Ownership snapshot
Top reported holders of CALX - CALIX, 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
VANGUARD PORTFOLIO MANAGE...
Disclosed value leader
BlackRock, Inc.
Comparable rows
15/15
Latest evidence
31 Mar 2026
13D/G
13F
Lead comparable stake: 8.6%
13D/G row: VANGUARD PORTFOLIO MANAGEMENT LLC
Showing 1-6 of 15 holder rows.
Quick read
VANGUARD PORTFOLIO MANAGEMENT LLC leads the comparable SEC ownership view at 8.6%.
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 VANGUARD PORTFOLIO MANAGEMENT LLC's linked filing trail.
Comparable ownership
Top 5
VANGUARD PORTFOLIO MANAGEMENT LLC
8.6%
ALLIANCEBERNSTEIN L.P.
5%
BlackRock, Inc.
18%
VANGUARD GROUP INC
13%
STATE STREET CORP
3.7%
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 |
|---|---|---|---|---|---|
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
Vanguard Portfolio Management
|
8.6%
|
$273,666,909
5,586,179 shares
|
$0 | 31 Mar 2026 |
| ALLIANCEBERNSTEIN L.P. |
13D/G
13F
Company
|
5%
|
$138,790,654
3,251,128 shares
|
+$43,215,172 | 31 Mar 2026 |
| BlackRock, Inc. |
13F
Company
|
18%
|
$606,733,495
11,462,941 shares
|
— | 31 Dec 2025 |
| VANGUARD GROUP INC |
13F
Company
|
13%
|
$439,448,678
8,302,450 shares
|
— | 31 Dec 2025 |
| STATE STREET CORP |
13F
Company
|
3.7%
|
$125,071,737
2,362,965 shares
|
— | 31 Dec 2025 |
| CONGRESS ASSET MANAGEMENT CO |
13F
Company
|
2.3%
|
$76,618,557
1,447,545 shares
|
— | 31 Dec 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 Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
309
Shares
59,642,726
Rows available
309
| 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 Q1 2026 vs Q1 2026 Across Filers
Q1 2026 holders
309
Q1 2026 holders
309
Holder diff
0
| Investor | Q1 2026 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q1 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend