ADAGE CAPITAL PARTNERS GP, L.L.C.
Position in SSD — Simpson Manufacturing Co., Inc.
CIK 1165408
Boston, MA
Position in SSD
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$27,030,150
+$2,809,650 QoQ
Shares Held
157,500
+5.0% QoQ
Ownership
0.384%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
5 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in SSD Over Time
Shares Held
Position Value (USD)
All Filings in SSD
Export CSV
5 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $27,030,150 | 157,500 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $24,220,500 | 150,000 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $29,305,500 | 175,000 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $11,648,250 | 75,000 | Shares | Sole | 2025-08-14 | |
| 2020-03-31 | $6,444,804 | 103,982 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||