VANGUARD GROUP INC
Rank #1
10.2%
- Shares
- 14.47M
- Change
- +108.01K
- Change %
- +75.00%
- Filing
- Dec 31, 2025
Increased
Methodology published · Market data, model notes, and corrections process are public · Data policy · Corrections policy
NYSE · TECHNOLOGY · Holders
C3 Ai Inc (AI) Institutional Ownership & Insider Trading History
Top AI institutional shareholders, filing changes, and Form 4 insider activity with filters for buys, sales, option exercises, gifts, and tax withholding.
Section freshness
Price Jun 23, 4:00 PM EDT · Statements Apr 29, 8:00 PM EDT
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Price time means the latest available trade or regular-market close. Other times show when that section was checked or published.
PriceLive
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Provider checked •
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Provider checked •
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Newsevery 15 min
Latest item •
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Ownership read
AI insider sentiment: Net selling.
VANGUARD GROUP INC is the largest institutional holder. 68 sales and 0 purchases appear in the recent Form 4 filings. Use the filters below to separate real buying and selling from option exercises, gifts, awards, and tax withholding.
Insider flow
AI
Purchases—
Sales20.27M
Directional bars ignore awards, gifts, conversions, and tax withholding rows.
Top holder
14.47M
VANGUARD GROUP INC
Insider stance
Net selling
$62.48M sold / — bought
Latest filing
Jun 3, 2026
Most recent holder or insider filing date
Filings shown
240
120 holder / 120 insider
- Holder rows
- 120
- Market data source
- Latest filing
- Jun 3, 2026
- Most recent holder or insider filing date
- Increased / initiated
- 77
- 36 decreased
- Insider rows
- 120
- Market data source
Top 120 institutional holders
C3 Ai Inc (AI) institutional ownership
Ranked by reported share count, with position changes and latest filing dates where ownership data supplies them.
BLACKROCK
Rank #2
8.65%
- Shares
- 12.21M
- Change
- +809.89K
- Change %
- +7.11%
- Filing
- Mar 31, 2026
Increased
VANGUARD PORTFOLIO MANAGEMENT LLC
Rank #3
6.05%
- Shares
- 8.54M
- Change
- +8.54M
- Change %
- —
- Filing
- Mar 31, 2026
Initiated
VANGUARD CAPITAL MANAGEMENT LLC
Rank #4
4.14%
- Shares
- 5.84M
- Change
- +5.84M
- Change %
- —
- Filing
- Mar 31, 2026
Initiated
MORGAN STANLEY
Rank #5
4.06%
- Shares
- 5.73M
- Change
- +901.20K
- Change %
- +18.68%
- Filing
- Mar 31, 2026
Increased
GOLDMAN SACHS GROUP INC
Rank #6
2.72%
- Shares
- 3.84M
- Change
- +512.28K
- Change %
- +15.38%
- Filing
- Mar 31, 2026
Increased
BANK OF AMERICA CORP
Rank #7
2.32%
- Shares
- 3.28M
- Change
- +1.17M
- Change %
- +55.12%
- Filing
- Mar 31, 2026
Increased
STATE STREET CORP
Rank #8
2.23%
- Shares
- 3.15M
- Change
- +174.19K
- Change %
- +5.85%
- Filing
- Mar 31, 2026
Increased
GEODE CAPITAL MANAGEMENT
Rank #9
2.07%
- Shares
- 2.93M
- Change
- +57.22K
- Change %
- +2.00%
- Filing
- Mar 31, 2026
Increased
MILLENNIUM MANAGEMENT LLC
Rank #10
2.02%
- Shares
- 2.85M
- Change
- +1.83M
- Change %
- +178.90%
- Filing
- Mar 31, 2026
Increased
MIRAE ASSET GLOBAL ETFS HOLDINGS LTD.
Rank #11
1.67%
- Shares
- 2.36M
- Change
- -199.68K
- Change %
- -7.81%
- Filing
- Mar 31, 2026
Decreased
MARSHALL WACE
Rank #12
1.59%
- Shares
- 2.25M
- Change
- +1.23M
- Change %
- +121.54%
- Filing
- Mar 31, 2026
Increased
BNP PARIBAS FINANCIAL MARKETS
Rank #13
1.25%
- Shares
- 1.76M
- Change
- +922.49K
- Change %
- +109.64%
- Filing
- Mar 31, 2026
Increased
UBS GROUP AG
Rank #14
1.24%
- Shares
- 1.76M
- Change
- +1.10M
- Change %
- +167.19%
- Filing
- Mar 31, 2026
Increased
JPMORGAN CHASE & CO
Rank #15
1.08%
- Shares
- 1.52M
- Change
- +947.80K
- Change %
- +164.67%
- Filing
- Mar 31, 2026
Increased
TWO SIGMA INVESTMENTS
Rank #16
0.93%
- Shares
- 1.32M
- Change
- +269.59K
- Change %
- +25.67%
- Filing
- Mar 31, 2026
Increased
FIRST TRUST ADVISORS LP
Rank #17
0.86%
- Shares
- 1.22M
- Change
- +488.71K
- Change %
- +67.26%
- Filing
- Mar 31, 2026
Increased
DIMENSIONAL FUND ADVISORS LP
Rank #18
0.74%
- Shares
- 1.04M
- Change
- -524.95K
- Change %
- -33.45%
- Filing
- Mar 31, 2026
Decreased
NORTHERN TRUST CORP
Rank #19
0.74%
- Shares
- 1.04M
- Change
- +25.98K
- Change %
- +2.56%
- Filing
- Mar 31, 2026
Increased
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
Rank #20
0.74%
- Shares
- 1.04M
- Change
- +140.27K
- Change %
- +15.59%
- Filing
- Mar 31, 2026
Increased
VANGUARD FIDUCIARY TRUST CO
Rank #21
0.62%
- Shares
- 872.31K
- Change
- +872.31K
- Change %
- —
- Filing
- Mar 31, 2026
Initiated
FEDERATED HERMES
Rank #22
0.54%
- Shares
- 759.18K
- Change
- +83.76K
- Change %
- +12.40%
- Filing
- Mar 31, 2026
Increased
JANE STREET GROUP
Rank #23
0.53%
- Shares
- 749.22K
- Change
- -295.19K
- Change %
- -28.26%
- Filing
- Mar 31, 2026
Decreased
CITADEL ADVISORS LLC
Rank #24
0.51%
- Shares
- 720.22K
- Change
- -309.56K
- Change %
- -30.06%
- Filing
- Mar 31, 2026
Decreased
CAPITAL FUND MANAGEMENT S.A.
Rank #25
0.49%
- Shares
- 694.10K
- Change
- +86.48K
- Change %
- +14.23%
- Filing
- Mar 31, 2026
Increased
BANK OF NEW YORK MELLON CORP
Rank #26
0.49%
- Shares
- 690.69K
- Change
- +5.63K
- Change %
- +82.00%
- Filing
- Mar 31, 2026
Increased
EDGESTREAM PARTNERS
Rank #27
0.47%
- Shares
- 658.57K
- Change
- +469.06K
- Change %
- +247.50%
- Filing
- Mar 31, 2026
Increased
TWO SIGMA ADVISERS
Rank #28
0.41%
- Shares
- 572.40K
- Change
- +381.50K
- Change %
- +199.84%
- Filing
- Dec 31, 2025
Increased
SUSQUEHANNA INTERNATIONAL GROUP
Rank #29
0.40%
- Shares
- 571.40K
- Change
- -701.88K
- Change %
- -55.12%
- Filing
- Mar 31, 2026
Decreased
HRT FINANCIAL LP
Rank #30
0.39%
- Shares
- 556.04K
- Change
- +370.30K
- Change %
- +199.36%
- Filing
- Mar 31, 2026
Increased
VOLORIDGE INVESTMENT MANAGEMENT
Rank #31
0.39%
- Shares
- 545.45K
- Change
- -135.82K
- Change %
- -19.94%
- Filing
- Mar 31, 2026
Decreased
DEFIANCE ETFS
Rank #32
0.36%
- Shares
- 504.98K
- Change
- +477.80K
- Change %
- +1758.31%
- Filing
- Mar 31, 2026
Increased
PENSERRA CAPITAL MANAGEMENT LLC
Rank #33
0.36%
- Shares
- 504.98K
- Change
- +477.80K
- Change %
- +1758.31%
- Filing
- Mar 31, 2026
Increased
ALGERT GLOBAL LLC
Rank #34
0.34%
- Shares
- 474.16K
- Change
- +474.16K
- Change %
- —
- Filing
- Mar 31, 2026
Initiated
QUANTBOT TECHNOLOGIES LP
Rank #35
0.32%
- Shares
- 457.26K
- Change
- +154.36K
- Change %
- +50.96%
- Filing
- Mar 31, 2026
Increased
SG AMERICAS SECURITIES
Rank #36
0.29%
- Shares
- 407.60K
- Change
- +23.11K
- Change %
- +6.01%
- Filing
- Mar 31, 2026
Increased
NORGES BANK
Rank #37
0.25%
- Shares
- 356.20K
- Change
- +316.22K
- Change %
- +790.93%
- Filing
- Dec 31, 2025
Increased
NUVEEN
Rank #38
0.24%
- Shares
- 340.85K
- Change
- +1.74K
- Change %
- +51.00%
- Filing
- Mar 31, 2026
Increased
CITIGROUP INC
Rank #39
0.23%
- Shares
- 331.21K
- Change
- +138.72K
- Change %
- +72.06%
- Filing
- Mar 31, 2026
Increased
BARCLAYS PLC
Rank #40
0.23%
- Shares
- 330.32K
- Change
- -210.46K
- Change %
- -38.92%
- Filing
- Mar 31, 2026
Decreased
| # | Institution | % held | Shares | Change | Change % | Filing date |
|---|---|---|---|---|---|---|
| 1 | 10.2% | 14.47M | +108.01K Increased | +75.00% | Dec 31, 2025 | |
| 2 | 8.65% | 12.21M | +809.89K Increased | +7.11% | Mar 31, 2026 | |
| 3 | 6.05% | 8.54M | +8.54M Initiated | — | Mar 31, 2026 | |
| 4 | 4.14% | 5.84M | +5.84M Initiated | — | Mar 31, 2026 | |
| 5 | 4.06% | 5.73M | +901.20K Increased | +18.68% | Mar 31, 2026 | |
| 6 | 2.72% | 3.84M | +512.28K Increased | +15.38% | Mar 31, 2026 | |
| 7 | 2.32% | 3.28M | +1.17M Increased | +55.12% | Mar 31, 2026 | |
| 8 | 2.23% | 3.15M | +174.19K Increased | +5.85% | Mar 31, 2026 | |
| 9 | 2.07% | 2.93M | +57.22K Increased | +2.00% | Mar 31, 2026 | |
| 10 | MILLENNIUM MANAGEMENT LLC | 2.02% | 2.85M | +1.83M Increased | +178.90% | Mar 31, 2026 |
| 11 | MIRAE ASSET GLOBAL ETFS HOLDINGS LTD. | 1.67% | 2.36M | -199.68K Decreased | -7.81% | Mar 31, 2026 |
| 12 | MARSHALL WACE | 1.59% | 2.25M | +1.23M Increased | +121.54% | Mar 31, 2026 |
| 13 | BNP PARIBAS FINANCIAL MARKETS | 1.25% | 1.76M | +922.49K Increased | +109.64% | Mar 31, 2026 |
| 14 | 1.24% | 1.76M | +1.10M Increased | +167.19% | Mar 31, 2026 | |
| 15 | 1.08% | 1.52M | +947.80K Increased | +164.67% | Mar 31, 2026 | |
| 16 | TWO SIGMA INVESTMENTS | 0.93% | 1.32M | +269.59K Increased | +25.67% | Mar 31, 2026 |
| 17 | FIRST TRUST ADVISORS LP | 0.86% | 1.22M | +488.71K Increased | +67.26% | Mar 31, 2026 |
| 18 | 0.74% | 1.04M | -524.95K Decreased | -33.45% | Mar 31, 2026 | |
| 19 | 0.74% | 1.04M | +25.98K Increased | +2.56% | Mar 31, 2026 | |
| 20 | 0.74% | 1.04M | +140.27K Increased | +15.59% | Mar 31, 2026 | |
| 21 | 0.62% | 872.31K | +872.31K Initiated | — | Mar 31, 2026 | |
| 22 | FEDERATED HERMES | 0.54% | 759.18K | +83.76K Increased | +12.40% | Mar 31, 2026 |
| 23 | JANE STREET GROUP | 0.53% | 749.22K | -295.19K Decreased | -28.26% | Mar 31, 2026 |
| 24 | CITADEL ADVISORS LLC | 0.51% | 720.22K | -309.56K Decreased | -30.06% | Mar 31, 2026 |
| 25 | CAPITAL FUND MANAGEMENT S.A. | 0.49% | 694.10K | +86.48K Increased | +14.23% | Mar 31, 2026 |
| 26 | BANK OF NEW YORK MELLON CORP | 0.49% | 690.69K | +5.63K Increased | +82.00% | Mar 31, 2026 |
| 27 | EDGESTREAM PARTNERS | 0.47% | 658.57K | +469.06K Increased | +247.50% | Mar 31, 2026 |
| 28 | TWO SIGMA ADVISERS | 0.41% | 572.40K | +381.50K Increased | +199.84% | Dec 31, 2025 |
| 29 | SUSQUEHANNA INTERNATIONAL GROUP | 0.40% | 571.40K | -701.88K Decreased | -55.12% | Mar 31, 2026 |
| 30 | HRT FINANCIAL LP | 0.39% | 556.04K | +370.30K Increased | +199.36% | Mar 31, 2026 |
| 31 | VOLORIDGE INVESTMENT MANAGEMENT | 0.39% | 545.45K | -135.82K Decreased | -19.94% | Mar 31, 2026 |
| 32 | DEFIANCE ETFS | 0.36% | 504.98K | +477.80K Increased | +1758.31% | Mar 31, 2026 |
| 33 | PENSERRA CAPITAL MANAGEMENT LLC | 0.36% | 504.98K | +477.80K Increased | +1758.31% | Mar 31, 2026 |
| 34 | ALGERT GLOBAL LLC | 0.34% | 474.16K | +474.16K Initiated | — | Mar 31, 2026 |
| 35 | QUANTBOT TECHNOLOGIES LP | 0.32% | 457.26K | +154.36K Increased | +50.96% | Mar 31, 2026 |
| 36 | SG AMERICAS SECURITIES | 0.29% | 407.60K | +23.11K Increased | +6.01% | Mar 31, 2026 |
| 37 | 0.25% | 356.20K | +316.22K Increased | +790.93% | Dec 31, 2025 | |
| 38 | NUVEEN | 0.24% | 340.85K | +1.74K Increased | +51.00% | Mar 31, 2026 |
| 39 | CITIGROUP INC | 0.23% | 331.21K | +138.72K Increased | +72.06% | Mar 31, 2026 |
| 40 | BARCLAYS PLC | 0.23% | 330.32K | -210.46K Decreased | -38.92% | Mar 31, 2026 |
Showing 40 of 120 matching institutional rows.Load more institutions
Recent insider transactions
C3 Ai Inc (AI) Form 4 filings
Action codes are translated so open-market buys and sales are separate from awards, gifts, conversions, and tax withholding.
SIEBEL, THOMAS M
Director, CEO and Chairman of the Board, 10% Owner
- Shares
- 6.18M
- % company
- 4.36%
- Price
- No cash value
- Value
- No cash value
Filed Jun 3, 2026
SIEBEL, THOMAS M
Director, CEO and Chairman of the Board, 10% Owner
- Shares
- 6.18M
- % company
- 4.36%
- Price
- Not reported
- Value
- Not reported
Filed Jun 3, 2026
SIEBEL, THOMAS M
Director, CEO and Chairman of the Board, 10% Owner
- Shares
- 17.35K
- % company
- 0.01%
- Price
- $11.32
- Value
- $196,402
Filed Jun 2, 2026
SIEBEL, THOMAS M
Director, CEO and Chairman of the Board, 10% Owner
- Shares
- 6.17M
- % company
- 4.35%
- Price
- $11.16
- Value
- $68,820,004
Filed Jun 1, 2026
SIEBEL, THOMAS M
Director, CEO and Chairman of the Board, 10% Owner
- Shares
- 32.74K
- % company
- 0.02%
- Price
- No cash value
- Value
- No cash value
Filed Jun 1, 2026
SIEBEL, THOMAS M
Director, CEO and Chairman of the Board, 10% Owner
- Shares
- 6.17M
- % company
- 4.35%
- Price
- Not reported
- Value
- Not reported
Filed Jun 1, 2026
SIEBEL, THOMAS M
Director, CEO and Chairman of the Board, 10% Owner
- Shares
- 32.74K
- % company
- 0.02%
- Price
- Not reported
- Value
- Not reported
Filed Jun 1, 2026
SIEBEL, THOMAS M
Director, CEO and Chairman of the Board, 10% Owner
- Shares
- 112.01K
- % company
- 0.08%
- Price
- $8.65
- Value
- $968,921
Filed May 18, 2026
SIEBEL, THOMAS M
Director, CEO and Chairman of the Board, 10% Owner
- Shares
- 112.01K
- % company
- 0.08%
- Price
- Not reported
- Value
- Not reported
Filed May 18, 2026
SIEBEL, THOMAS M
Director, CEO and Chairman of the Board, 10% Owner
- Shares
- 112.01K
- % company
- 0.08%
- Price
- $2.04
- Value
- $228,509
Filed May 18, 2026
HYTEN, JOHN E.
Director
- Shares
- 2.50K
- % company
- <0.01%
- Price
- $8.65
- Value
- $21,625
Filed May 15, 2026
SIEBEL, THOMAS M
Director, CEO and Chairman of the Board, 10% Owner
- Shares
- 369.62K
- % company
- 0.26%
- Price
- Not reported
- Value
- Not reported
Filed May 15, 2026
| # | Insider | % company | Action | Shares | Price | Value | Filing date |
|---|---|---|---|---|---|---|---|
| 1 | SIEBEL, THOMAS M Director, CEO and Chairman of the Board, 10% Owner | 4.36% | Award / grantAward, grant, or acquisition under an equity compensation plan. | 6.18M | No cash value | No cash value | Jun 3, 2026 |
| 2 | SIEBEL, THOMAS M Director, CEO and Chairman of the Board, 10% Owner | 4.36% | Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale. | 6.18M | Not reported | Not reported | Jun 3, 2026 |
| 3 | SIEBEL, THOMAS M Director, CEO and Chairman of the Board, 10% Owner | 0.01% | Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale. | 17.35K | $11.32 | $196,402 | Jun 2, 2026 |
| 4 | SIEBEL, THOMAS M Director, CEO and Chairman of the Board, 10% Owner | 4.35% | Award / grantAward, grant, or acquisition under an equity compensation plan. | 6.17M | $11.16 | $68,820,004 | Jun 1, 2026 |
| 5 | SIEBEL, THOMAS M Director, CEO and Chairman of the Board, 10% Owner | 0.02% | Award / grantAward, grant, or acquisition under an equity compensation plan. | 32.74K | No cash value | No cash value | Jun 1, 2026 |
| 6 | SIEBEL, THOMAS M Director, CEO and Chairman of the Board, 10% Owner | 4.35% | Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale. | 6.17M | Not reported | Not reported | Jun 1, 2026 |
| 7 | SIEBEL, THOMAS M Director, CEO and Chairman of the Board, 10% Owner | 0.02% | Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale. | 32.74K | Not reported | Not reported | Jun 1, 2026 |
| 8 | SIEBEL, THOMAS M Director, CEO and Chairman of the Board, 10% Owner | 0.08% | Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale. | 112.01K | $8.65 | $968,921 | May 18, 2026 |
| 9 | SIEBEL, THOMAS M Director, CEO and Chairman of the Board, 10% Owner | 0.08% | Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale. | 112.01K | Not reported | Not reported | May 18, 2026 |
| 10 | SIEBEL, THOMAS M Director, CEO and Chairman of the Board, 10% Owner | 0.08% | Award / grantAward, grant, or acquisition under an equity compensation plan. | 112.01K | $2.04 | $228,509 | May 18, 2026 |
| 11 | HYTEN, JOHN E. Director | <0.01% | Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale. | 2.50K | $8.65 | $21,625 | May 15, 2026 |
| 12 | SIEBEL, THOMAS M Director, CEO and Chairman of the Board, 10% Owner | 0.26% | Sale to issuerDisposition to the company or issuer. It is directional selling, but not always an ordinary open-market sale. | 369.62K | Not reported | Not reported | May 15, 2026 |
Showing 12 of 120 matching Form 4 rows. Percent of company uses current shares outstanding when available.Load more insiders
Frequently asked
Common questions.
Who are the largest AI shareholders?
VANGUARD GROUP INC is the largest institutional holder of AI, with 14.47 million shares, or about 10.25% of shares outstanding. Additional institutions are ranked by reported share count.
What is institutional ownership of AI?
C3 Ai Inc (AI) has 120 institutional holders on file — 77 that increased or initiated positions and 36 that reduced them, as of the latest filing on Mar 31, 2026.
Where can I see C3 Ai Inc insider transactions?
C3 Ai Inc (AI) has 120 Form 4 insider transactions on file, most recently on Jun 3, 2026, separated into purchases, sales, option exercises, awards, gifts, and tax withholding so administrative transactions are distinguished from open-market trades.
Are AI insiders buying or selling?
Recent AI insider activity reads Net selling: 68 sales and 0 purchases. Awards, gifts, conversions, and tax withholding are listed separately because they do not carry the same signal as open-market trades.
Who is the most active AI insider?
SIEBEL, THOMAS M is the most active AI insider by absolute share movement, with 36.27 million shares moving across the filing history. Review the action labels before treating that activity as buying or selling.