Security key
01749D105
ALLEGRO MICROSYSTEMS, INC. - COMMON STOCK (ALGM)
CUSIP: 01749D105
Q4 2023 13F Holders as of 31 Dec 2023
- Security type / class
- Equity / COMMON STOCK
- Total 13F shares
- 96,322,663
- Total 13F value
- $2,913,583,833
- Share change
- +2,700,326
- Put/Call ratio
- 120%
- SEC-reported price per share
- $30.27
- Number of holders
- 286
- Value change
- +$74,962,541
- Number of buys
- 150
- Number of sells
- 168
- Shares outstanding
- 187,039,843
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 2023
Institutions
286
Top holders
10
ALGM full security history
Ownership snapshot
Full 13F holder table
ALLEGRO MICROSYSTEMS, INC. SEC filings
ALLEGRO MICROSYSTEMS, INC. company facts
Broader feeds
Ownership snapshot
Top reported holders of ALGM - ALLEGRO MICROSYSTEMS, 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
OEP SKNA, L.P.
Disclosed value leader
OEP SKNA, L.P.
Comparable rows
0/15
Latest evidence
30 Sep 2023
3/4/5
13F
Highest disclosed value: $494,884,886
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
OEP SKNA, L.P. has the largest disclosed position value at $494.88M.
0 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 OEP SKNA, L.P.'s linked filing trail.
Disclosed position value
Top 5
OEP SKNA, L.P.
$494.88M
OEP CAPITAL ADVISORS, L.P.
$404.02M
FMR LLC
$294.95M
VANGUARD GROUP INC
$235.14M
BlackRock Finance, Inc.
$209.86M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| OEP SKNA, L.P. |
3/4/5
10%+ Owner
|
—
denominator unverified
|
$494,884,886
17,649,247 shares
|
— | 02 Feb 2023 |
| OEP CAPITAL ADVISORS, L.P. |
13F
Company
|
—
denominator unverified
|
$404,016,949
17,649,247 shares
|
— | 30 Sep 2023 |
| FMR LLC |
13F
Company
|
—
denominator unverified
|
$294,948,475
9,234,454 shares
|
— | 30 Sep 2023 |
| VANGUARD GROUP INC |
13F
Company
|
—
denominator unverified
|
$235,140,300
7,361,938 shares
|
— | 30 Sep 2023 |
| BlackRock Finance, Inc. |
13F
Company
|
—
denominator unverified
|
$209,864,357
6,570,581 shares
|
— | 30 Sep 2023 |
| JPMORGAN CHASE & CO |
13F
Company
|
—
denominator unverified
|
$129,434,840
4,052,437 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
286
Shares
96,322,663
Rows available
286
| 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
305
Q4 2023 holders
286
Holder diff
-19
| Investor | Q3 2023 Shares | Q4 2023 Shares | Share Diff | Share Chg % | Q3 2023 value | Q4 2023 value | Value change | Value Chg % |
|---|