GRDX
GridAI Technologies Corp.Company with tickers: GRDX
CIK
1604191
CUSIP
33749P507
Shares Outstanding
6,653,140
13F Activity (30d)
13 filings
13 filers
Holders: 14
Total Value: $704,086
Total Shares: 348,560
Institutional Ownership Trend
Holder Concentration
Across 14 13F filers · Δ vs Dec 31, 2025Top Holder
52.7%
+25.0 pts
Top 5
88.0%
+1.2 pts
Top 10
99.9%
−0.1 pts
HHI
3,174
Highly concentrated
+1,382
Quarterly Activity
vs Dec 31, 2025
New
6
Increased
4
Decreased
1
Sold Out
4
Unchanged
3
Holder count:
+2
Institutional value:
-13.9%
Shares held:
+98.6%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Large RENAISSANCE TECHNOLOGIES LLC | +152,800 | 183,800 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC | +12,912 | 33,270 | |
| Mega UBS Group AG | +2,651 | 3,187 | |
| Mid SBI Securities Co., Ltd. | +1 | 504 |
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mega CITIGROUP INC | −1,825 | 1 |
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Large Federation des caisses Desjardins du Quebec | 47,800 | $96,556 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC | 18,293 | $36,951 | |
| Mega VANGUARD FIDUCIARY TRUST CO | 16,345 | $33,016 | |
| Mega JANE STREET GROUP, LLC | 12,657 | $25,567 | |
| Mid HARBOUR INVESTMENTS, INC. | 7,994 | $16,147 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mid DRW Securities, LLC | 48,623 | $226,583 | |
| Small FNY Investment Advisers, LLC | 27,581 | $128,527 | |
| Mega VANGUARD GROUP INC | 21,646 | $100,869 | |
| Mega BANK OF AMERICA CORP /DE/ | 17 | $79 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Large RENAISSANCE TECHNOLOGIES LLC | $371,276 | 52.73% | 183,800 | Shares | Sole | 2026-05-14 | ||||
| Large Federation des caisses Desjardins du Quebec | $96,556 | 13.71% | 47,800 | Shares | Defined | 2026-05-14 | ||||
| Mega GEODE CAPITAL MANAGEMENT, LLC | $67,205 | 9.54% | 33,270 | Shares | Defined | 2026-05-15 | ||||
| Mega STATE STREET CORP | $47,360 | 6.73% | 23,446 | Shares | Defined | 2026-05-15 | ||||
| Mega VANGUARD CAPITAL MANAGEMENT LLC | $36,951 | 5.25% | 18,293 | Shares | Defined | 2026-05-15 | ||||
| Mega VANGUARD FIDUCIARY TRUST CO Bank | $33,016 | 4.69% | 16,345 | Shares | Defined | 2026-05-08 | ||||
| Mega JANE STREET GROUP, LLC | $25,567 | 3.63% | 12,657 | Shares | Defined | 2026-05-12 | ||||
| Mid HARBOUR INVESTMENTS, INC. | $16,147 | 2.29% | 7,994 | Shares | Sole | 2026-05-15 | ||||
| Mega UBS Group AG | $6,437 | 0.91% | 3,187 | Shares | Defined | 2026-05-05 | ||||
| Mid Tower Research Capital LLC (TRC) | $2,547 | 0.36% | 1,261 | Shares | Defined | 2026-05-15 | ||||
| Mid SBI Securities Co., Ltd. Broker-Dealer | $1,018 | 0.14% | 504 | Shares | Defined | 2026-04-28 | ||||
| Large DANSKE BANK A/S Bank | $2 | 0.00% | 1 | Shares | Sole | 2026-05-12 | ||||
| Mega CITIGROUP INC | $2 | 0.00% | 1 | Shares | Defined | 2026-05-11 | ||||
| Large OSAIC HOLDINGS, INC. | $2 | 0.00% | 1 | Shares | Defined | 2026-05-15 | ||||
| No holders match your search. | ||||||||||