Whale Tracker

NEUTRAL — WATCH

No clear whale direction for ALAB. Bullish and bearish signals roughly cancel out. Insiders are net sellers (2,546,440 shares sold vs 375,746 bought) — management reducing exposure. Strong institutional ownership at 73.0% with 7 of 10 top holders actively accumulating this quarter.

Action Plan

Hold existing positions — no strong directional signal
Wait for clearer whale activity before adding
Monitor next earnings for institutional positioning changes

📈 Options Flow 期权异动

Unusual options volume vs open interest. High volume/OI ratio signals whale positioning. Put/Call ratio indicates directional bias.

PUT / CALL RATIO

0 (Bullish)1.02.0+ (Bearish)

0.65

LEAN BULLISH

CALL VOLUME

15,995

PUT VOLUME

10,471

TOTAL VOLUME

26,466

UNUSUAL STRIKES

Unusual Strikes — Vol/OI > 3x (3C / 7P)

TypeStrikeExpiryVolOIRatio

PUT$3682026-06-1270235.0x

CALL$4052026-06-185321829.6x

PUT$3702026-06-123762316.3x

PUT$3182026-06-2680516.0x

PUT$2952026-07-1055511.0x

PUT$3552026-06-123693510.5x

PUT$3752026-06-12166179.8x

PUT$3652026-06-12212239.2x

CALL$3902026-06-12774908.6x

CALL$4052026-07-025778.1x

High Volume Contracts — Vol > 500 (10 contracts)

TypeStrikeExpiryVolume

PUT$3052026-06-121,339

CALL$3452026-06-121,338

CALL$4002026-06-121,329

CALL$4002026-06-18809

CALL$3902026-06-12774

CALL$3802026-06-18639

CALL$3702026-06-12577

CALL$4052026-06-18532

CALL$3852026-06-12513

CALL$3902026-06-18507

P/C OI RATIO

0.84

TOTAL OI

119,955

CALL OI

65,043

PUT OI

54,912

Put/Call volume ratio: 0.65 (bullish)
Total options volume: 26,466 (calls 15,995 / puts 10,471)
Top unusual: PUT $367.5 exp 2026-06-12 — vol/OI 35.0x
26 unusual strikes detected (9C / 17P)

👤 Insider Trading 内部交易

SEC Form 4 filings — officer and director buys/sells in the last 90 days. Net buying is a strong bullish signal.

13% BUY

87% SELL

SHARES BOUGHT (6m)

375,746

SHARES SOLD (6m)

2,546,440

NET INSIDER FLOW

-2,170,694

FORM 4 FILINGS (90d)

Recent Insider Transactions (0 buys / 5 sells / 5 grants)

TypeInsiderSharesDate

SELLLAZAR JACK R10,0002026-06-04

GRANTLAZAR JACK R8372026-06-04

GRANTBARRATT CRAIG H8372026-06-04

GRANTMAYER BETHANY J8372026-06-04

GRANTDYCKERHOFF STEFAN A8372026-06-04

GRANTHURLSTON MICHAEL E.8372026-06-04

SELLDYCKERHOFF STEFAN A12,4992026-06-03

SELLGAJENDRA SANJAY400,0002026-05-21

SELLMAZZARA PHILIP7962026-05-21

SELLGAJENDRA SANJAY280,0002026-05-19

Insider buying: 375,746 shares
Insider selling: 2,546,440 shares
26 Form 4 filings in last 90 days
Net insider SELLING — bearish signal

🏦 Smart Money Flow 机构资金流向

Quarter-over-quarter position changes from 13F filings. Shows whether institutional investors are accumulating (buying more) or distributing (selling) — the strongest signal of whale conviction.

INSTITUTIONAL OWNERSHIP

73.0%

ACCUMULATION vs DISTRIBUTION

70% ACCUMULATING

30% DISTRIBUTING

NET SHARES FLOW

+9,365,924

FLOW SCORE

+0.27

ADDING

SELLING

Institutional Position Changes (QoQ)

ActionInstitution% HeldQoQ ΔShares Δ

★ NEW POSITIONVanguard Portfolio Management LLC4.26%NEW+3,654,889

★ NEW POSITIONVanguard Capital Management LLC3.70%NEW+3,170,366

★ NEW POSITIONAtreides Management, LP1.96%NEW+1,754,591

▲▲ HEAVY BUYAmundi1.10%+77.9%+823,471

▲▲ HEAVY BUYFred Alger Management, LLC1.50%+33.0%+638,269

▲ ADDINGAlliancebernstein L.P.1.47%+15.4%+334,938

▲ ADDINGState Street Corporation1.94%+7.5%+233,730

▬ HOLDFMR, LLC14.89%+0.8%+195,078

▬ HOLDGeode Capital Management, LLC1.46%+3.3%+79,187

▼ TRIMMINGBlackrock Inc.6.68%-11.7%-1,518,595

ETF & Mutual Fund Flow (3 adding / 0 selling)

ActionFundQoQ ΔShares Δ

▬ HOLDFidelity Select Portfolios-Select Semiconduct0.0%0

▲ ADDINGVANGUARD INDEX FUNDS-Vanguard Total Stock Mar+8.2%+346,666

▲ ADDINGVANGUARD INDEX FUNDS-Vanguard Small-Cap Index+8.8%+269,829

▬ HOLDFidelity Securities Fund-Fidelity Blue Chip G-1.2%-30,643

▬ HOLDiShares Trust-iShares Semiconductor ETF+3.4%+82,898

▬ HOLDFidelity Mt. Vernon Street Trust-Fidelity Gro0.0%0

▬ HOLDFidelity Select Portfolios-Technology Portfol0.0%0

▲ ADDINGVANGUARD INDEX FUNDS-Vanguard Small-Cap Growt+7.9%+136,008

▬ HOLDVanEck ETF Trust-VanEck Semiconductor ETF-2.1%-37,950

▬ HOLDVANGUARD INDEX FUNDS-Vanguard Extended Market+4.4%+61,914

Institutional ownership: 73.0%
Smart money flow: 7 adding / 1 selling / 2 hold
Net shares added by institutions: +9,365,924
Biggest mover: Vanguard Portfolio Management LLC added 3,654,889 shares (+100.0%)

🕶 Short Interest & Dark Pool 做空 & 暗池

Short interest as % of float and days-to-cover. Rising SI = bearish pressure. High SI + decreasing = shorts covering (bullish). Squeeze risk rated by SI level.

SHORT INTEREST (% OF FLOAT)

0%10%20%30%+

SHORT % FLOAT

9.2%

DAYS TO COVER

1.9

SI CHANGE (MoM)

↓ 9.3%

SQUEEZE RISK

LOW

SHARES SHORT

11,906,625

PRIOR MONTH

13,125,304

FLOAT SHARES

153,830,055

AVG VOLUME

5,677,346

Short interest: 9.2% of float
Days to cover: 1.9
Short interest MoM: ↓ 9.3%
Squeeze risk: LOW

📡 Data Sources 数据来源

Options Flow

LEAN BULLISH (80%)

Insider Trading

BEARISH (90%)

Smart Money Flow

LEAN BULLISH (75%)

Short Interest

NEUTRAL (60%)

📋 Summary 综合摘要

[dark_pool] Short interest: 9.2% of float
[dark_pool] Days to cover: 1.9
[institutional] Institutional ownership: 73.0%
[institutional] Smart money flow: 7 adding / 1 selling / 2 hold
[options_flow] Put/Call volume ratio: 0.65 (bullish)
[options_flow] Total options volume: 26,466 (calls 15,995 / puts 10,471)
[insider] Insider buying: 375,746 shares
[insider] Insider selling: 2,546,440 shares