MASSACHUSETTS FINANCIAL SERVICES CO /MA/
Position in ADTN — ADTRAN Holdings, Inc.
CIK 912938
Boston, MA
Position in ADTN
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$850,848
+$247,494 QoQ
Shares Held
67,635
-2.6% QoQ
Ownership
0.084%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2024
9 quarters on record
Voting authority
Sole 83%
Shared 17%
None 0%
Common Shares in ADTN Over Time
Shares Held
Position Value (USD)
Position in Communication Equipment
Technology · as of Mar 31, 2026MASSACHUSETTS FINANCIAL SERVICES CO /MA/ holds $509,701,070 across 7 Communication Equipment names. ADTN ranks #7 (0.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | CIEN |
Ciena Corp
|
582,668 | $226,209,194 | |
| 2 | ZBRA |
Zebra Technologies Corp
|
542,288 | $113,381,574 | |
| 3 | CSCO |
Cisco Systems, Inc.
|
1,083,539 | $84,071,789 | |
| 4 | MSI |
Motorola Solutions, Inc.
|
91,086 | $39,528,588 | |
| 5 | DGII |
Digi International Inc
|
543,997 | $26,220,655 | |
| 6 | BDC |
Belden Inc.
|
169,280 | $19,438,422 | |
| 7 | ADTN |
ADTRAN Holdings, Inc.
This page
|
67,635 | $850,848 |
All Filings in ADTN
Export CSV
9 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $850,848 | 67,635 | Shares | Sole | 2026-05-14 | |
| 2025-12-31 | $603,354 | 69,431 | Shares | Sole | 2026-01-22 | |
| 2025-09-30 | $672,817 | 71,729 | Shares | Sole | 2025-10-29 | |
| 2025-06-30 | $601,079 | 67,010 | Shares | Sole | 2025-08-08 | |
| 2025-03-31 | $577,115 | 66,183 | Shares | Sole | 2025-05-02 | |
| 2024-12-31 | $563,882 | 67,693 | Shares | Sole | 2025-02-12 | |
| 2024-09-30 | $413,409 | 69,715 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $375,579 | 71,403 | Shares | Sole | 2024-08-09 | |
| 2024-03-31 | $375,398 | 69,007 | Shares | Sole | 2024-05-14 | |
| No filing history on record for this holder in this stock. | ||||||