Oberweis Asset Management Inc/
· Reduced
Change
−232K
Date
Q1 2026
IB
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Oberweis Asset Management Inc/
· Reduced
Change
−232K
Date
Q1 2026
|
Oberweis Asset Management Inc/ | Reduced· Q1 2026 | – | −232K | – | Q1 2026 | |||||
|
Two Sigma Investments, LP
· Added
Change
+205K
Δ Own
+115.1%
Date
Q1 2026
|
Two Sigma Investments, LP | Added· Q1 2026 | – | +205K | +115.1% | Q1 2026 | |||||
|
Two Sigma Advisers, LP
· Exited
Change
−148K
Δ Own
−100.0%
Date
Q1 2026
|
Two Sigma Advisers, LP | Exited· Q1 2026 | – | −148K | −100.0% | Q1 2026 | |||||
|
Pinnacle Associates Ltd
· Added
Change
+134K
Date
Q1 2026
|
Pinnacle Associates Ltd | Added· Q1 2026 | – | +134K | – | Q1 2026 | |||||
|
Man Group PLC
· New
Change
+120K
Date
Q1 2026
|
Man Group PLC | New· Q1 2026 | – | +120K | – | Q1 2026 | |||||
|
G2 Investment Partners Management LLC
· Added
Change
+110K
Date
Q1 2026
|
G2 Investment Partners Management LLC | Added· Q1 2026 | – | +110K | – | Q1 2026 | |||||
|
Globeflex Capital L P
· Reduced
Change
−105K
Date
Q1 2026
|
Globeflex Capital L P | Reduced· Q1 2026 | – | −105K | – | Q1 2026 | |||||
|
Royce & Associates LP
· Added
Change
+80K
Date
Q1 2026
|
Royce & Associates LP | Added· Q1 2026 | – | +80K | – | Q1 2026 | |||||
|
Walleye Capital LLC
· Exited
Change
−71K
Δ Own
−100.0%
Date
Q1 2026
|
Walleye Capital LLC | Exited· Q1 2026 | – | −71K | −100.0% | Q1 2026 | |||||
|
Arrowstreet Capital, Limited Partnership
· Reduced
Change
−69K
Date
Q1 2026
|
Arrowstreet Capital, Limited Partnership | Reduced· Q1 2026 | – | −69K | – | Q1 2026 | |||||
|
Invesco Ltd.
· Reduced
Change
−65K
Δ Own
−63.6%
Date
Q1 2026
|
Invesco Ltd. | Reduced· Q1 2026 | – | −65K | −63.6% | Q1 2026 | |||||
|
Qube Research & Technologies Ltd
· Added
Change
+63K
Date
Q1 2026
|
Qube Research & Technologies Ltd | Added· Q1 2026 | – | +63K | – | Q1 2026 | |||||
|
American Century Companies Inc
· Added
Change
+62K
Date
Q1 2026
|
American Century Companies Inc | Added· Q1 2026 | – | +62K | – | Q1 2026 | |||||
|
Acadian Asset Management LLC
· Reduced
Change
−58K
Date
Q1 2026
|
Acadian Asset Management LLC | Reduced· Q1 2026 | – | −58K | – | Q1 2026 | |||||
|
Y-Intercept (hong Kong) Ltd
· Added
Change
+53K
Date
Q1 2026
|
Y-Intercept (hong Kong) Ltd | Added· Q1 2026 | – | +53K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Greenwald Taylor C.
· Officer
Tax withholding or exercise payment (F)
-$27K
|
Greenwald Taylor C. | Officer | Tax withholding or exercise payment (F) | $31.60 | -853 | -$27K | 61K | −1.4% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Dechant Robert Thomas
· Director
Tax withholding or exercise payment (F)
-$143K
|
Dechant Robert Thomas | Director | Tax withholding or exercise payment (F) | $31.60 | -5K | -$143K | 281K | −1.6% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Inson Paul Joseph
· Officer
Tax withholding or exercise payment (F)
-$26K
|
Inson Paul Joseph | Officer | Tax withholding or exercise payment (F) | $31.60 | -823 | -$26K | 31K | −2.6% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Darwal Michael Joseph
· Officer
Tax withholding or exercise payment (F)
-$10K
|
Darwal Michael Joseph | Officer | Tax withholding or exercise payment (F) | $31.60 | -316 | -$10K | 41K | −0.8% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Casteel Julie K.
· Officer
Tax withholding or exercise payment (F)
-$29K
|
Casteel Julie K. | Officer | Tax withholding or exercise payment (F) | $31.60 | -910 | -$29K | 117K | −0.8% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Afdahl David Martin
· Officer
Tax withholding or exercise payment (F)
-$36K
|
Afdahl David Martin | Officer | Tax withholding or exercise payment (F) | $31.60 | -1K | -$36K | 156K | −0.7% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Trofimuk-O'Connor Christina Alice
· Officer
Tax withholding or exercise payment (F)
-$22K
|
Trofimuk-O'Connor Christina Alice | Officer | Tax withholding or exercise payment (F) | $31.60 | -700 | -$22K | 35K | −2.0% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Dawson Bruce Neil
· Officer
Tax withholding or exercise payment (F)
-$28K
|
Dawson Bruce Neil | Officer | Tax withholding or exercise payment (F) | $31.60 | -886 | -$28K | 61K | −1.4% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Casteel Julie K.
· Officer
Sell
−$110K
|
Casteel Julie K. | Officer | Sell | $30.61 | −4K | −$110K | 118K | – | Jun 11, 2026 | Jun 16, 2026 | |||||||||
|
McGinnis Patrick
· Director
Sell
−$33K
|
McGinnis Patrick | Director | Sell | $31.69 | −1K | −$33K | 6K | – | May 28, 2026 | May 29, 2026 | |||||||||
|
Greenwald Taylor C.
· CFO
Sell
−$31K
|
Greenwald Taylor C. | CFO | Sell | $32.02 | −964 | −$31K | 62K | – | May 22, 2026 | May 27, 2026 | |||||||||
|
Greenwald Taylor C.
· CFO
Grant (A)
3K
|
Greenwald Taylor C. | CFO | Grant (A) | – | 3K | – | 63K | – | May 22, 2026 | May 27, 2026 | |||||||||
|
Dechant Robert Thomas
· Director
Sell
−$238K
|
Dechant Robert Thomas | Director | Sell | $30.50 | −8K | −$238K | 286K | – | May 13, 2026 | May 13, 2026 | |||||||||
|
Dawson Bruce Neil
· Officer
Sell
−$475K
|
Dawson Bruce Neil | Officer | Sell | $31.12 | −15K | −$475K | 62K | – | May 12, 2026 | May 13, 2026 | |||||||||
|
Dawson Bruce Neil
· Officer
Sell
−$103K
|
Dawson Bruce Neil | Officer | Sell | $32.80 | −3K | −$103K | 77K | – | May 11, 2026 | May 13, 2026 | |||||||||
A
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A
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178 reporting institutions disclosed IBEX 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.