Westerly Capital Management, LLC
· Added
Change
+625K
Date
Q1 2026
HD
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Westerly Capital Management, LLC
· Added
Change
+625K
Date
Q1 2026
|
Westerly Capital Management, LLC | Added· Q1 2026 | – | +625K | – | Q1 2026 | |||||
|
Segall Bryant & Hamill, LLC
· Added
Change
+448K
Date
Q1 2026
|
Segall Bryant & Hamill, LLC | Added· Q1 2026 | – | +448K | – | Q1 2026 | |||||
|
Citadel Advisors LLC
· Added
Change
+333K
Δ Own
+415.4%
Date
Q1 2026
|
Citadel Advisors LLC | Added· Q1 2026 | – | +333K | +415.4% | Q1 2026 | |||||
|
Marshall Wace, LLP
· Reduced
Change
−246K
Date
Q1 2026
|
Marshall Wace, LLP | Reduced· Q1 2026 | – | −246K | – | Q1 2026 | |||||
|
Morgan Stanley
· Reduced
Change
−234K
Date
Q1 2026
|
Morgan Stanley | Reduced· Q1 2026 | – | −234K | – | Q1 2026 | |||||
|
D. E. Shaw & Co., Inc.
· Reduced
Change
−224K
Δ Own
−38.5%
Date
Q1 2026
|
D. E. Shaw & Co., Inc. | Reduced· Q1 2026 | – | −224K | −38.5% | Q1 2026 | |||||
|
Los Angeles Capital Management LLC
· Exited
Change
−221K
Δ Own
−100.0%
Date
Q1 2026
|
Los Angeles Capital Management LLC | Exited· Q1 2026 | – | −221K | −100.0% | Q1 2026 | |||||
|
Acadian Asset Management LLC
· Exited
Change
−221K
Δ Own
−100.0%
Date
Q1 2026
|
Acadian Asset Management LLC | Exited· Q1 2026 | – | −221K | −100.0% | Q1 2026 | |||||
|
Qube Research & Technologies Ltd
· Added
Change
+207K
Date
Q1 2026
|
Qube Research & Technologies Ltd | Added· Q1 2026 | – | +207K | – | Q1 2026 | |||||
|
Renaissance Technologies LLC
· Reduced
Change
−193K
Δ Own
−11.4%
Date
Q1 2026
|
Renaissance Technologies LLC | Reduced· Q1 2026 | – | −193K | −11.4% | Q1 2026 | |||||
|
Numerai Gp LLC
· New
Change
+177K
Date
Q1 2026
|
Numerai Gp LLC | New· Q1 2026 | – | +177K | – | Q1 2026 | |||||
|
Two Sigma Advisers, LP
· Exited
Change
−167K
Δ Own
−100.0%
Date
Q1 2026
|
Two Sigma Advisers, LP | Exited· Q1 2026 | – | −167K | −100.0% | Q1 2026 | |||||
|
Vanguard
· Reduced
Change
−152K
Date
Q1 2026
|
Vanguard | Reduced· Q1 2026 | – | −152K | – | Q1 2026 | |||||
|
Two Sigma Investments, LP
· Added
Change
+138K
Δ Own
+101.6%
Date
Q1 2026
|
Two Sigma Investments, LP | Added· Q1 2026 | – | +138K | +101.6% | Q1 2026 | |||||
|
Bridgeway Capital Management, LLC
· Added
Change
+120K
Date
Q1 2026
|
Bridgeway Capital Management, LLC | Added· Q1 2026 | – | +120K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Hartree Partners, LP
· 10% Owner
Buy
+$4K
|
Hartree Partners, LP | 10% Owner | Buy | $5.99 | +600 | +$4K | 5.0M | 0.0% | Jul 7, 2026 | Jul 8, 2026 | |||||||||
|
Hartree Partners, LP
· 10% Owner
Buy
+$28K
|
Hartree Partners, LP | 10% Owner | Buy | $5.99 | +5K | +$28K | 5.0M | +0.1% | Jul 6, 2026 | Jul 8, 2026 | |||||||||
|
Hartree Partners, LP
· 10% Owner
Buy
+$1.6M
|
Hartree Partners, LP | 10% Owner | Buy | $5.97 | +271K | +$1.6M | 5.0M | +5.8% | Jul 2, 2026 | Jul 2, 2026 | |||||||||
|
Hartree Partners, LP
· 10% Owner
Buy
+$1.7M
|
Hartree Partners, LP | 10% Owner | Buy | $5.88 | +288K | +$1.7M | 4.7M | +6.5% | Jul 1, 2026 | Jul 2, 2026 | |||||||||
|
Hartree Partners, LP
· 10% Owner
Buy
+$1.2M
|
Hartree Partners, LP | 10% Owner | Buy | $5.68 | +205K | +$1.2M | 4.4M | +4.9% | Jun 30, 2026 | Jul 2, 2026 | |||||||||
|
Sheriff Alan
· Director
2 operations
19K
|
Sheriff Alan | Director | 2 operations | – | 19K | – | 15K | – | Jun 17, 2026 | Jun 22, 2026 | |||||||||
|
Prouty Eric A.
· Director
2 operations
26K
|
Prouty Eric A. | Director | 2 operations | – | 26K | – | 21K | – | Jun 17, 2026 | Jun 22, 2026 | |||||||||
|
Parrillo Richard
· Director
Grant (A)
32K
|
Parrillo Richard | Director | Grant (A) | – | 32K | – | 32K | – | Jun 17, 2026 | Jun 22, 2026 | |||||||||
|
Mansy Loan Nguyen
· Director
2 operations
30K
|
Mansy Loan Nguyen | Director | 2 operations | – | 30K | – | 21K | – | Jun 17, 2026 | Jun 22, 2026 | |||||||||
|
Bulgarino Nicole E.
· Director
Grant (A)
32K
|
Bulgarino Nicole E. | Director | Grant (A) | – | 32K | – | 32K | – | Jun 17, 2026 | Jun 22, 2026 | |||||||||
|
Feeler Jeffrey R.
· Director
2 operations
19K
|
Feeler Jeffrey R. | Director | 2 operations | – | 19K | – | 15K | – | Jun 17, 2026 | Jun 22, 2026 | |||||||||
|
Bertaux Brian J.
· CFO
Buy
+$10K
|
Bertaux Brian J. | CFO | Buy | $4.87 | +2K | +$10K | 2K | – | May 19, 2026 | May 21, 2026 | |||||||||
|
Mansy Loan Nguyen
· Director
2 operations
+$25K
|
Mansy Loan Nguyen | Director | 2 operations | $4.96–$4.97 | +5K | +$25K | 26K | – | May 14, 2026 | May 15, 2026 | |||||||||
|
Parrillo Richard
· Director
2 operations
+$25K
|
Parrillo Richard | Director | 2 operations | $4.96–$4.97 | +5K | +$25K | 26K | – | May 14, 2026 | May 15, 2026 | |||||||||
|
Bulgarino Nicole E.
· Director
Buy
+$3K
|
Bulgarino Nicole E. | Director | Buy | $4.84 | +550 | +$3K | 11K | – | May 14, 2026 | May 15, 2026 | |||||||||
N
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155 reporting institutions disclosed HDSN position changes in the Q1 2026 snapshot.
For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.
An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.
Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.
Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.
A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.