NISA INVESTMENT ADVISORS, LLC ZBIO — ZENAS BIOPHARMA INC

Ownership history in NISA INVESTMENT ADVISORS, LLC  ·  7 quarters on record

AI Ownership Summary

NISA INVESTMENT ADVISORS, LLC reported ZENAS BIOPHARMA INC (ZBIO) in 7 quarterly 13F filings from 2025 Q1 through 2026 Q3. The latest visible filing shows ZBIO at 0.00% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings.

What this ZBIO ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was NISA INVESTMENT ADVISORS, LLC's position in ZENAS BIOPHARMA INC, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q3

ZBIO was reported at 0.00% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.0% in 2026 Q1

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2025 Q1 to 2026 Q3

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

ZBIO stock page NISA INVESTMENT ADVISORS, LLC fund profile NISA INVESTMENT ADVISORS, LLC full holdings
How NISA INVESTMENT ADVISORS, LLC held ZBIO — position size vs. price
% of Fund (quarterly)    ZBIO price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 7 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q3 ADDED — — — 710 +59 +9.1% 0.00% $19K 2026-10-20 $28.18
2026 Q2 REDUCED 73.0% +8.6% ❌ 651 -1,764 -73.0% 0.00% $17K 2026-08-10 $31.99
2026 Q1 ADDED — — — 2,415 +2,300 +2000.0% 0.00% $47K 2026-04-30 $19.32
2025 Q4 UNCHANGED — — — 115 — 0% 0.00% $4K 2026-01-15 $19.93
2025 Q3 UNCHANGED — — — 115 — 0% 0.00% $3K 2025-10-23 $25.01
2025 Q2 ADDED — — — 115 +87 +310.7% 0.00% $1K 2025-07-31 $15.71
2025 Q1 INITIATED — — — 28 — — 0.00% $221 2025-04-30 $11.58

🏢 Other funds also holding ZBIO

As of 2026 Q3 — sorted by position size

IFS Advisors, LLC 3Y 0.0% GAMMA Investing LLC 0.0% Physician Wealth Advisors, Inc. 3Y 0.0% Fortitude Family Office, LLC 0.0% Essential Partners LLC 0.0% CoreCap Advisors, LLC 3Y 0.0% Farther Finance Advisors, LLC 3Y 0.0%

FAQ About NISA INVESTMENT ADVISORS, LLC and ZBIO

These are the practical questions this page is built to answer before you even open the full history table.

How long has NISA INVESTMENT ADVISORS, LLC reported owning ZBIO?

NISA INVESTMENT ADVISORS, LLC reported ZBIO across 7 quarterly 13F filings, from 2025 Q1 through 2026 Q3.

What was the largest reported ZBIO position in NISA INVESTMENT ADVISORS, LLC's portfolio?

The largest reported portfolio weight for ZBIO was 0.00% in 2026 Q1.

What is the latest reported ZBIO position on this page?

The most recent filing on this page is 2026 Q3, when NISA INVESTMENT ADVISORS, LLC reported 710 shares, equal to 0.00% of portfolio, with an estimated market value of $19K.

What does the chart on this ZBIO ownership page compare?

The chart compares NISA INVESTMENT ADVISORS, LLC's quarterly ZBIO portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did NISA INVESTMENT ADVISORS, LLC time their ZBIO position?

Based on 13F filing dates vs. subsequent ZBIO price moves, NISA INVESTMENT ADVISORS, LLC correctly timed 4 out of 4 reported position changes (100%). The annualised alpha on ZBIO relative to SPY over the holding period was +45.1%.

← Back to NISA INVESTMENT ADVISORS, LLC Holdings