Cooke & Bieler LP
· Reduced
Change
−1.2M
Date
Q1 2026
BO
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Cooke & Bieler LP
· Reduced
Change
−1.2M
Date
Q1 2026
|
Cooke & Bieler LP | Reduced· Q1 2026 | – | −1.2M | – | Q1 2026 | |||||
|
Steel Partners Holdings L.P.
· Reduced
Change
−779K
Date
Q1 2026
|
Steel Partners Holdings L.P. | Reduced· Q1 2026 | – | −779K | – | Q1 2026 | |||||
|
Federated Hermes, Inc.
· Reduced
Change
−255K
Date
Q1 2026
|
Federated Hermes, Inc. | Reduced· Q1 2026 | – | −255K | – | Q1 2026 | |||||
|
Mackenzie Financial Corp
· Added
Change
+231K
Date
Q1 2026
|
Mackenzie Financial Corp | Added· Q1 2026 | – | +231K | – | Q1 2026 | |||||
|
Prudential Financial Inc
· Reduced
Change
−166K
Date
Q1 2026
|
Prudential Financial Inc | Reduced· Q1 2026 | – | −166K | – | Q1 2026 | |||||
|
Pacific Ridge Capital Partners, LLC
· Added
Change
+161K
Date
Q1 2026
|
Pacific Ridge Capital Partners, LLC | Added· Q1 2026 | – | +161K | – | Q1 2026 | |||||
|
Gendell Jeffrey L
· Added
Change
+100K
Date
Q1 2026
|
Gendell Jeffrey L | Added· Q1 2026 | – | +100K | – | Q1 2026 | |||||
|
JPMorgan Chase & Co
· Reduced
Change
−94K
Date
Q1 2026
|
JPMorgan Chase & Co | Reduced· Q1 2026 | – | −94K | – | Q1 2026 | |||||
|
Gsa Capital Partners LLP
· Added
Change
+92K
Date
Q1 2026
|
Gsa Capital Partners LLP | Added· Q1 2026 | – | +92K | – | Q1 2026 | |||||
|
Acadian Asset Management LLC
· Added
Change
+91K
Date
Q1 2026
|
Acadian Asset Management LLC | Added· Q1 2026 | – | +91K | – | Q1 2026 | |||||
|
Morgan Stanley
· Added
Change
+89K
Date
Q1 2026
|
Morgan Stanley | Added· Q1 2026 | – | +89K | – | Q1 2026 | |||||
|
Villanova Investment Management Co LLC
· Reduced
Change
−74K
Date
Q1 2026
|
Villanova Investment Management Co LLC | Reduced· Q1 2026 | – | −74K | – | Q1 2026 | |||||
|
Man Group PLC
· Exited
Change
−70K
Δ Own
−100.0%
Date
Q1 2026
|
Man Group PLC | Exited· Q1 2026 | – | −70K | −100.0% | Q1 2026 | |||||
|
Focus Partners Wealth
· Reduced
Change
−69K
Date
Q1 2026
|
Focus Partners Wealth | Reduced· Q1 2026 | – | −69K | – | Q1 2026 | |||||
|
Winton Group Ltd
· Added
Change
+60K
Date
Q1 2026
|
Winton Group Ltd | Added· Q1 2026 | – | +60K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Oleary James
· Director
2 operations
0
|
Oleary James | Director | 2 operations | – | 0 | – | 144K | – | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Oleary James
· Director
Shares transferred outside the market (D), often for tax or as a gift, not a market sale
-$451K
|
Oleary James | Director | Shares transferred outside the market (D), often for tax or as a gift, not a market sale | $6.26 | -72K | -$451K | 191K | −27.3% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Seger Brett A.
· Officer
Tax withholding or exercise payment (F)
-$2K
|
Seger Brett A. | Officer | Tax withholding or exercise payment (F) | $7.16 | -230 | -$2K | 21K | – | May 28, 2026 | May 28, 2026 | |||||||||
|
Kelly Michael Aaron
· Director
Grant (A)
17K
|
Kelly Michael Aaron | Director | Grant (A) | – | 17K | – | 66K | – | May 13, 2026 | May 14, 2026 | |||||||||
|
Dreessen Ruth
· Director
Grant (A)
17K
|
Dreessen Ruth | Director | Grant (A) | – | 17K | – | 65K | – | May 13, 2026 | May 14, 2026 | |||||||||
|
Doubman John R.
· Director
Grant (A)
17K
|
Doubman John R. | Director | Grant (A) | – | 17K | – | 31K | – | May 13, 2026 | May 14, 2026 | |||||||||
|
Sananikone Ouma
· Director
Grant (A)
17K
|
Sananikone Ouma | Director | Grant (A) | – | 17K | – | 53K | – | May 13, 2026 | May 14, 2026 | |||||||||
|
Spurlin Sharon
· Director
Grant (A)
17K
|
Spurlin Sharon | Director | Grant (A) | – | 17K | – | 27K | – | May 13, 2026 | May 14, 2026 | |||||||||
|
Walter Eric V
· CFO
Tax withholding or exercise payment (F)
-$86K
|
Walter Eric V | CFO | Tax withholding or exercise payment (F) | $7.51 | -11K | -$86K | 89K | – | May 13, 2026 | May 14, 2026 | |||||||||
|
Seger Brett A.
· Officer
Tax withholding or exercise payment (F)
-$8K
|
Seger Brett A. | Officer | Tax withholding or exercise payment (F) | $4.73 | -2K | -$8K | 22K | – | Mar 14, 2026 | Mar 16, 2026 | |||||||||
|
Walter Eric V
· Officer
Tax withholding or exercise payment (F)
-$11K
|
Walter Eric V | Officer | Tax withholding or exercise payment (F) | $4.73 | -2K | -$11K | 100K | – | Mar 14, 2026 | Mar 16, 2026 | |||||||||
|
Grieves Ian
· Officer
2 operations
0
|
Grieves Ian | Officer | 2 operations | – | 0 | – | 0 | – | Mar 14, 2026 | Mar 16, 2026 | |||||||||
|
Grieves Ian
· Officer
Tax withholding or exercise payment (F)
-$7K
|
Grieves Ian | Officer | Tax withholding or exercise payment (F) | $4.73 | -2K | -$7K | 82K | – | Mar 14, 2026 | Mar 16, 2026 | |||||||||
|
Nobili Antoine
· Officer
2 operations
0
|
Nobili Antoine | Officer | 2 operations | – | 0 | – | 0 | – | Mar 14, 2026 | Mar 16, 2026 | |||||||||
|
Walter Eric V
· Officer
Grant (A)
54K
|
Walter Eric V | Officer | Grant (A) | – | 54K | – | 54K | – | Mar 3, 2026 | Mar 5, 2026 | |||||||||
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119 reporting institutions disclosed BOOM 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.