Tidewater (TDW): Ownership & Insider Activity
Hedge funds and institutional managers reporting a position in TDW · Energy. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
16
13F filers
Aggregate Value
$245.0M
Across holders
Last Price
$80.81
2026-10-19
Sector
Energy
GICS
Quarterly fund activity8 increased7 reduced3 exited
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| BAILLIE GIFFORD & CO CIK 0001088875 | Institutional Manager | 1.67M | $111.3M | 45.4% | 0.1% | Added | +$87.4M | Q2 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 1.25M | $83.2M | 33.9% | 0.0% | Added | +$62.5M | Q2 2026 |
| MILLENNIUM MANAGEMENT LLC CIK 0001273087 | Hedge Fund | 321K | $21.4M | 8.7% | 0.0% | Added | +$19.8M | Q2 2026 |
| BALYASNY ASSET MANAGEMENT LLC CIK 0001218710 | Hedge Fund | 240K | $16.0M | 6.5% | 0.0% | Added | +$5.5M | Q2 2026 |
| CAPSTONE INVESTMENT ADVISORS, LLC CIK 0001426196 | Hedge Fund | 49K | $3.3M | 1.3% | 0.0% | Added | — | Q2 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 47K | $3.1M | 1.3% | 0.0% | Added | +$3.1M | Q2 2026 |
| TWEEDY BROWNE CO LLC// CIK 0000732905 | Institutional Manager | 30K | $2.0M | 0.8% | 0.1% | Added | +$242K | Q2 2026 |
| Lighthouse Investment Partners, LLC CIK 0001600344 | Hedge Fund | 24K | $1.6M | 0.7% | 0.0% | Added | — | Q2 2026 |
| Gotham Asset Management, LLC CIK 0001510387 | Hedge Fund | 20K | $1.3M | 0.5% | 0.0% | Reduced | $-789K | Q2 2026 |
| Bridgewater Associates, LP CIK 0001350694 | Hedge Fund | 11K | $720K | 0.3% | 0.0% | Reduced | $-308K | Q2 2026 |
Added
Institutional Manager
$111.3M· 45.4% of total· 0.1% port· 1.67M sh· +$87.4M QoQ· Q2 2026
Added
Hedge Fund
$83.2M· 33.9% of total· 0.0% port· 1.25M sh· +$62.5M QoQ· Q2 2026
Added
Hedge Fund
$21.4M· 8.7% of total· 0.0% port· 321K sh· +$19.8M QoQ· Q2 2026
Added
Hedge Fund
$16.0M· 6.5% of total· 0.0% port· 240K sh· +$5.5M QoQ· Q2 2026
Added
Hedge Fund
$3.3M· 1.3% of total· 0.0% port· 49K sh· — QoQ· Q2 2026
Added
Hedge Fund
$3.1M· 1.3% of total· 0.0% port· 47K sh· +$3.1M QoQ· Q2 2026
Added
Institutional Manager
$2.0M· 0.8% of total· 0.1% port· 30K sh· +$242K QoQ· Q2 2026
Added
Hedge Fund
$1.6M· 0.7% of total· 0.0% port· 24K sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$1.3M· 0.5% of total· 0.0% port· 20K sh· $-789K QoQ· Q2 2026
Reduced
Hedge Fund
$720K· 0.3% of total· 0.0% port· 11K sh· $-308K QoQ· Q2 2026
Reduced
Institutional Manager
$312K· 0.1% of total· 0.0% port· 5K sh· $-979K QoQ· Q2 2026
Reduced
Hedge Fund
$294K· 0.1% of total· 0.0% port· 4K sh· $-6K QoQ· Q2 2026
Reduced
Hedge Fund
$292K· 0.1% of total· 0.0% port· 4K sh· $-606K QoQ· Q2 2026
Reduced
Hedge Fund
$236K· 0.1% of total· 0.0% port· 4K sh· $-320K QoQ· Q2 2026
Unchanged
Hedge Fund
$733· 0.0% of total· 0.0% port· 11 sh· +$0 QoQ· Q2 2026
Reduced
Hedge Fund
$666· 0.0% of total· 0.0% port· 10 sh· $-3.1M QoQ· Q2 2026
1–10 of 16
1 / 2
Recent insider activity
Form 4 purchases and sales · 24 Jul 2026 – 21 Oct 20260 buyers · $03 sellers · $3.0M4 transactions
| Insider ⇅ | Trades ⇅ | Bought ⇅ | Sold ⇅ | Largest ⇅ | Latest ▼ | |
|---|---|---|---|---|---|---|
| ROBOTTI ROBERT Director | 2 0 buy · 2 sell | — | $925K | $602K | 16 Sept 2026SEC ↗ | |
| Rubio Samuel R EVP, CFO & CAO | 1 0 buy · 1 sell | — | $1.6M | $1.6M | 12 Aug 2026SEC ↗ | |
| Hudson Daniel A. EVP, CLO & Corporate Secretary | 1 0 buy · 1 sell | — | $445K | $445K | 10 Aug 2026SEC ↗ |
Distinct buyers and sellers may overlap. “Largest” is the largest reported transaction value in this window. Expand a row to see up to five recent filings.